Friday, December6, 2019
Privacy Policy
L-36.com

' Autohelm Raymarine: T100 300cc 300cc Autopilot Course Computer'



Note:

This is the new page for displaying documents. It allows documents to display on devices without pdf viewers specifically mobile devices, a new Google requirement. Note also that some documents have blank pages. Just click on "Next Page" if that happens.
Previous Page    Next Page
Go to page number
Note: Page number may not agree with index page numbers


Previous Page    Next Page
Go to page number
Note: Page number may not agree with index page numbers

PDF to Text.
       TYPE100300      and Set UpContents                                                                                                            3Contents           Chapter 1 Introduction  9                   11 ST7000 Control Unit  10                   12 ST6000 Control Unit  10                   13 Course Computer  11                   14 Fluxgate Compass  11                   15 Rotary Rudder Reference Transducer  12                   16 Linear Feedback Transducer  12                   17 Type CR Interface Unit  12                   18 Drive Systems  13                        Rotary Drive Units  13                        Reversing Hydraulic Pump  14                        Linear Drive  15                        Hydraulic Linear  15                        Constant Running Hydraulic Pump  16                        Stern drive  16                   19 Options  17                        Handheld Remote Z101  17                        NMEA Interface D153  17                        Auxiliary Alarm Z035  18                        Joystick Z147  18                        Wind Transducer sail only  19                            Masthead Wind Transducer Z080 Long Arm Version Z188  19                            Pushpit Wind Transducer Z087  19                        Gyroplus Transducer Z179  20           Chapter 2 Installation  2 1                   2 General  21                        Planning the Installation  214                                 TYPE100300 Operation and Installation Handbook    21 Course Computer  21        Mounting  22        Cabling  22            Type 1 Drive UnitsStern DriveConstant Running Pump  23            Type 2 Drive Units 12V  23            Type 2 Drive Units 24V  23            Type 3 Drive Units 12V  24            Type 3 Drive Units 24V  24    22 ST70006000 Control Unit  25        Mounting  25        Cabling  26    23 Fluxgate Compass  28        Mounting  28        Cabling  29    24 Rotary Rudder Reference Transducer  30        Mounting  30        Cabling  32    25 Linear Feedback Transducer  33        Mounting  33        Cabling  34    26 Hydraulic Drive Systems  35        Pump to Cylinder Specifications  35        Reversing Hydraulic Pumps Type 1 Type 2  Type 3  35            Mounting  35            Cabling  35                  Type 1 Drive Unit  35                  Type 2 Drive Unit 12V  36                  Type 2 Drive Unit 24V  36                  Type 3 Drive Unit 12V  36                  Type 3 Drive Unit 24V  36Contents                                                                                                   5                   Plumbing  37                   Two line system  39                   Two line pressurised system  39                   Three line system  40                   Bleeding the system  40               Constant Running Hydraulic Pump  41                   Mounting  41                   Cabling  42                         Pump Cable  43                         Solenoid Cable  43                   Plumbing  44               Hydraulic Linear Actuator  45                   Installation  45                   Cabling  48                   Final Preparations Before use  48           28 Mechanical Drive Systems  49               Rotary Drive Unit  49               Mounting  49               Cabling  52                   Type 1 Drive Unit  52                   Type 2 Drive Unit 12V  52                   Type 2 Drive Unit 24V  53               Linear Drive Unit  53               Mounting  54               Cabling  55                   Type 1 Drive Unit  55                   Type 2 Drive Unit 12V  55                   Type 2 Drive Unit 24V  56               Stern drive Actuator  56               Mounting  566                                         TYPE100300 Operation and Installation Handbook                    Volvo Pre type 872215  56                    Volvo Post type 872215  58                      61                    Mounting in a Restricted Area  63                Cabling  64           29 Auxiliary Alarm  65                Cabling  65           210 Joystick  66                Cabling  66           211 Masthead Transducer sail only  67                Mounting  67                Cabling  68           212 Interfacing to other manufacturers equipment NMEA  69                Course Computer NMEA ports  69                    Input Port  69                    Output Port  70                    Cabling  70                ST6000ST7000 Control Unit NMEA Input  71                    Cabling  72                NMEA Interface  73                    Cabling  74    Chapter 3 Functional Test  7 6           31 System test  76           32 Switchon  76           33 Rudder angle sense  77                ST7000 control unit  77                ST6000 control unit  77           34 Rudder angle alignment  77           35 Operating sense  78           36 Rudder deadband  78Contents                                                                                                           7                  37 Mechanical test Linear Rotary  Hydraulic Drives  78                       Current limit and cutout  78                  38 Mechanical Test Stern Drive  79                  39 Setting the Autopilot Rudder Limit All drives  79                  310 GyroPlus Offset and Drift Compensation  80                       Procedure  80           Chapter 4 Calibration  8 1                  41 Recommended Settings  81                  42 Selecting calibration  82                  43 Adjusting calibration  83                       RudderGain  83                       Rate Level  84                       Rudder Offset Helm Adjust  84                       Rudder Limit  84                       Turn Rate  85                       Cruise Speed  85                       Off Course Limit  85                       Trim Level  86                       Joystick Mode Manual Type  86                       Drive Option  86                       Rudder Deadband Rudder Damping  87                       Magnetic Variation  87                       Auto Adapt  87                       Latitude  88                       Wind Trim  88                       Response Level  88                       Auto Release manual override  89                  44 Saving Calibration Mode  89                  45 Display Contrast Adjustment ST7000 only  90                  46 Permanent Watch Alarm SFIA  90                  47 Recording Calibration Settings  908                                           TYPE100300 Operation and Installation Handbook    Chapter 5 Initial Sea Trials  9 1            51 Initial Sea Trials  91            52 Automatic Compass Heading Alignment and Deviation Correction  91            53 Compass Alignment without deviation correction  93            54 First Sea Trials  93            55 Response Control  94                 Level 1  Automatic Sea State Control  94                 Level 2  Automatic Sea State Inhibit  94                 Level 3  Automatic Sea State Inhibit and counter rudder  94            56 Automatic Trim Control  95            57 Rudder Gain Adjustment Displacement Craft  96            58 Rudder Gain Adjustment High Speed Planning Craft  97            59 Rudder Gain  Adjustment with Speed  97            510 Manual Override Stern Drive Actuators only  98    Chapter 6 Track Control  9 9    Chapter 7 Windvane Control Sail Only  101    Index  103Chapter 1 System Components                                                                       9Chapter 1 Introduction                     The Autohelm Type 100300 autopilots are modular systems that can be                     configured to suit the individual requirements of all types of vessels using                     a range of high efficiency rotary linear or hydraulic rudder drive units to                     match various types of steering systems                     The Autohelm system in its most basic form consists of a control unit                     course computer drive unit fluxgate compass and a rudder                     reference transducer                     A full range of accessories are also available and include                      Joystick manual steering unit                      Main alarm and interface                      Rate gyro                      Hand held remote control unit                      SeaTalk                       Interface leads                       Control                       Unit                                               Rudder                                               Reference                                                                                       Fluxgate                                               Unit                                                                        Gyro           Compass                       Control                       Unit                                                                                       Course                                                                                       Computer                                                                                      Cable                                                                                      Clamp                                           Drive Unit                                                                                              D726110                                                                    TYPE 100300 Operation and Installation Handbook11 ST7000 Control Unit                The ST7000 control unit is fully weather protected and designed for above                or below deck istallation The unit is connected to the course computer via                the SeaTalk bus NMEA navigation speed and wind information can be                received via a fixed socket on the rear of the case                Note Additional control units can also be connected via the SeaTalk bus                                                1778mm 7in                                 3875mm 15in                                                                                                              24mm 095in                       q     1                1   q                       q     10              10   q                                                                                                                    110mm                                                                                                                    433in                       STAND BY           AUTO             DISPLAY   TRACK      RESPONSE                                                                                     ST7000                                   TM                                                                                                                        D727112 ST6000 Control Unit                The ST6000 control unit like the ST7000 is fully weather protected and                also designed for above or below deck installation The unit is connected                to the course computer via the SeaTalk bus NMEA navigation speed and                wind information can be received via a fixed socket on the rear of the case                Note Additional control units can also be connected via the SeaTalk bus                     110mm 433in                                          3875mm 15in                                                                                              24mm095in                        1               1             DISPLAY                       10              10                                                                                                   110mm                                                         TRACK                                                                                                   433in                     STAND BY           AUTO            RESPONSE                                   TM                                                          ST6000                                                                                                         D728 1Chapter 1 System Components                                                                        1113 Course Computer                     The course computer available in both 12V or 24V versions houses a                     microprocessor drive unit electronic control circuitry and power amplifier                     It is the central distribution point for the autopilot electrical wiring and                     ships power connection point                     The course computer also has NMEA input and outputs to allow operation                     with other manufacturers equipment                     The unit is only splash proof and must therefore be installed in a dry                     protected location                     Type 100 is used for Type 1 and Type CR 12V drives Type 300 is used                     with Type 2 and Type 3 drives                                         233mm 92in              45mm 18in                                                                                    130mm 51in                                                                                     D865114 Fluxgate Compass                     The fluxgate compass contains a gimbal mechanism that permits                     accurate readings with pitch and roll movements up to  35 degrees                     The compass is designed for below deck bulkhead mounting and                     connects directly to the course computer                     On steel decked vessels the compass can be mounted above deck                     however autopilot performance may be affected due to the increased                     motion                           76mm 3in                                    TM                                                                 76mm 3in                                                                        D729112                                      TYPE 100300 Operation and Installation Handbook15 Rotary Rudder Reference Transducer                 The rudder reference transducer provides the course computer with the                 precise position of the vessels rudder The unit is mounted on a suitable                 base adjacent to the rudder stock Its use is mandatory on all installations                 except when a linear rudder reference transducer is connected                             152mm 6in                              1397mm 55in                                                                      61mm 24in                                                                                          695mm 27in                                                                                                           D730116 Linear Feedback Transducer                 The linear feedback transducer is designed for installations on bullhorn                 style hydraulic outboard steering systems The unit is totally weather proof                 and mounted on the bullhorn ram Its use is mandatory on all hydraulic                 outboard installations                                                425mm 1675in                                                                                                              32mm 13in                                                                                     TM                                                                                                            D869117 Type CR Interface Unit                 The course computer can be connected to the solenoids on a constant                 running hydraulic pump using the type CR interface The unit also provides                 connections to energise a solenoid operated bypass valve                            125mm 59in                                                     100mm 395in                                                                                                           237in                                                                                                           60mm                                                                                                             D7341Chapter 1 System Components                                                                      1318 Drive Systems                     A range of mechanical rotary linear and stern drive and hydraulic drive                     units are available for use with the Type 100300 system Rotary drives                     are coupled to the steering system by a simple chain drive linear drives                     directly to the rudder stock at the tiller arm radius and stern drives directly                     to the power steering valve block                     The type of hydraulic drive used is dependent on the size of the vessels                     hydraulic cylinder          Rotary Drive Units                     Autohelm rotary drive units provide smooth powerful steering commands                     with almost silent operation A rugged electric motor drives a precision                     epicyclic gearbox via a high tensile drive belt An electronic clutch                     transmits high torque loads with no slippage The drive unit can be                     mounted in any attitude to simplify installation                                                   274mm 108in                       195mm                        77in                               20mm 08in          256mm 10in                                   60mm                       184mm       24in                        72in                                   60mm                                   24in                                                   2 holes 125mm 05in diameter                                                                               D736114                                 TYPE 100300 Operation and Installation Handbook     Reversing Hydraulic Pump             The reversing hydraulic pump consists of a precision gear pump and an             integral check valve block driven by a continuously rated servo motor The             pump is connected directly to the vessels steering cylinder with the             course computer regulating the peak pump pressure             There are three types of pump type 1 type 2 and type 3 The different             type relates to the steering ram capacity which is directly related to the             displacement of the vessel             Type 1 80 to 230 cc 49 to 14cu in             Type 2 160 to 350 cc 98 to 21cu in             Type 3 250 to 460 cc 15 to 28cu in                                                                            103mm 407in                              A                      117mm 462in                Pump      Dimension A                Type 1    177mm 696in                Type 2    177mm 696in                Type 3    235mm 925in                                                                           D7381Chapter 1 System Components                                                                                                        15          Linear Drive                     The Autohelm linear drive unit is of outstanding design which features                     powerful thrust fast hard overtimes and near silent operation When                     backdriven the movement is smooth with minimal backdriven force Using                     a high tensile belt drive and epicyclic reduction gearbox the powerful                     electric motor is controlled by an electronic failsafe clutch                     The design is highly efficient and provides high performance for minimum                     current consumption                                                                                         A                       197mm 78in                                                                                                                       50mm 2in                                                                 79mm 31in                       114mm 45in                                                                                                              90                                                                                   Drive            Dimension A                                       4 off fixing holes suitable                 Type 1           700mm 275in                                       for 10mm 04in bolts                      Type 2 short   700mm 275in                                                                                   Type 2 long    850mm 335in   D10101          Hydraulic Linear                     The hydraulic linear drive unit is a self contained secondary steering                     cylinder with a builtin solenoid bypass valve The unit is driven by a                     reversing hydraulic pump to provide a totally isolated autopilot steering                     system                                                                                                  A                                                                                   457mm 18in                      315in                       80mm                                                 1016mm 4in                                   152mm 6in                                                                                Drive    Dimension A                                                                                Type 2   540mm 2125in                                                                                Type 3   690mm 2715in                                                                                                                         D877116                                    TYPE 100300 Operation and Installation Handbook     Constant Running Hydraulic Pump              When steering loads require a ram capacity of over 460cc 28cu in the              constant running hydraulic pump provides the ideal autopilot drive system              Hydraulic fluid is supplied from a self contained reservoir and flow to the              steering ram is controlled by integral solenoid operated valves              Used with a solenoid operated bypass valve and a separate hydraulic ram              this system is recommended for heavy duty applications on large              mechanically steered vessels                                                                                        224mm 88in                              356mm 14in                        262mm 103in                                                                                        D7401     Stern drive              The stern drive actuator must only be used on stern drives with cable              operated power assisted steering              The drive unit operates the power steering valve in exactly the same way              as the steering cable A clutch disengages the drive unit to allow manual              steering when the autopilot is disengaged              Installation kits are available for most popular types of steering manufac              turers               1025mm                40in                   634mm                    25in                                  220mm 866in            240mm 945in                                             460mm 181in midstroke                                                                               D7431Chapter 1 System Components                                                                          1719 Options                     The Type 100300 autopilot system is available with the following optional                     system components          Handheld Remote Z101                     The handheld remote allows course changing from a position away from                     the steering station The hand held remote is connected to the autopilot via                     the SeaTalk bus                            1        1                                                                     138mm 54in                            10      10                                       TM                          65mm 25in              145mm 06in                                                                     D10111          NMEA Interface D153                     Although the Type 100300 has its own NMEA 0183 input and output                     ports you may wish to receive information from additional equipment                     transmitting NMEA The NMEA interface connects to the SeaTalk bus and                     converts incoming data to SeaTalk The interface also converts SeaTalk                     data to NMEA 0183 format                                  1175mm 46in       37mm 15in                                                                                     875mm 34in                                                                                          D873118                                      TYPE 100300 Operation and Installation Handbook     Auxiliary Alarm Z035              The autopilot is provided with a comprehensive automatic offcourse alarm              system that sounds from all control units This provides sufficient audible              warning under most conditions However in cases where a high powered              alarm is required an auxiliary alarm can be fitted The auxiliary alarm is              connected to the SeaTalk bus via the NMEA interface box and will sound              whenever the autopilot transmits one of the following alarm conditions               Autopilot Off Course               Watch Alarm               Wind Shift               Low Battery               Large Cross Track Error               NMEA Data Error               No Autopilot Actuator Connected               Stern drive Auto Release               Waypoint Change Alarm                    85mm 335in              45mm 18in                                                          D7321     Joystick Z147              The Joystick is an electro mechanical remote steering unit that uses the              course computer and its drive unit to power steer the vessels rudder                   110mm 43in           76mm 3in         157mm 62in                                                                               110mm 43in                             JOYSTICK                       TM                                                                              D734a1Chapter 1 System Components                                                                     19          Wind Transducer sail only                     If the installation does not include a SeaTalk Wind instrument either the                     masthead or pushpit wind transducer can be connected directly to the                     NMEA interface box to supply wind angle information          Masthead Wind Transducer Z080 Long Arm Version Z188                                     371mm 146in                                                                             D7331          Pushpit Wind Transducer Z087                                                                   D1075120                                 TYPE 100300 Operation and Installation Handbook     Gyroplus Transducer Z179             The Autohelm Gyroplus is a transducer that measures the rate of turn of             the vessel This is used by the autopilot to give even better correction for             boat yaw in adverse weather conditions It is particularly beneficial             downward and in following sea conditions                  90mm 35in            51mm 2in                                                       115mm 45in                                                                       140mm 55in                           TM                    GYROPLUS                                                                       D8721Chapter 2 Installation                                                                              21Chapter 2 Installation2 General                          This section describes how to install the autopilot and system components                          described in chapter1            Planning the Installation                          When selecting power cable it is important to use the stated wire gauge                          The cable you choose may meet the required current specification                          however if too small the voltage will drop between the supply and the                          course computer This will reduce the power of the drive unit and may                          cause the electronics to malfunction21 Course Computer                          The course computer must be located in a dry protected location free                          from high operating temperatures and excessive vibration The unit must                          be mounted vertically with free air flow to allow heat dissipation from the                          power amplifier                          Avoid mounting the course computer                           in an engine room                           where there is water splashspray from bilges or hatches                           where it can be subjected to physical damage from heavy items such                            as hatch covers tool boxes etc                           where it will be covered by other onboard equipment                           where it will be close to sources of high RF energy transmissions                             generatorsSSB radios antenna cables etc22                                    TYPE 100300 Operation and Installation Handbook     Mounting                                                                 Vert                                                                     ical                                                                            D8811               1 With the course computer located as required outline the two                  mounting holes               2 Drill two pilot holes for the fixing screws               3 Secure the course computer to the vessel using the two screws                  provided               Note If the mounting surface is less than 3mm 18in thick use the U               clips provided               4 Drill three pilot holes for the cable clamp bar               5 Secure the cable clamp as shown     Cabling               Note If you are installing the Type 100300 system with a constant               running hydraulic pump refer to page 40 before running the power cable               1 Having sited the course computer measure the total cable length                  between the course computer and the vessels central power                  distribution panel Using the following tables select the appropriate                  cable size and circuit breaker relative to the type of drive unit usedChapter 2 Installation                                                           23            Type 1 Drive UnitsStern DriveConstant Running Pump                          Cable Length                Cable Gauge   Copper Area                          Distribution                          panel to Course Computer                          Up to 3m 10ft             12 AWG        25 mm                          Up to 5m 16ft             10 AWG        4 mm                          Up to 7m 23ft             8 AWG         6 mm                          Up to 10m 32ft            6 AWG         10 mm                          Up to 16m 52ft            4 AWG         16 mm                                                                             8100401            Type 2 Drive Units 12V                          Cable Length                Cable Gauge   Copper Area                          Distribution                          panel to Course Computer                          Up to 5m 16ft             8 AWG         6 mm                          Up to 7m 23ft             6 AWG         10 mm                          Up to 16m 52ft            4 AWG         16 mm                                                                             8100402            Type 2 Drive Units 24V                          Cable Length                Cable Gauge   Copper Area                          Distribution                          panel to Course Computer                          Up to 3m 10ft             12 AWG        25 mm                          Up to 5m 16ft             10 AWG        4 mm                          Up to 7m 23ft             8 AWG         6 mm                          Up to 10m 32ft            6 AWG         10 mm                          Up to 16m 52ft            4 AWG         16 mm                                                                             810040124                                     TYPE 100300 Operation and Installation Handbook     Type 3 Drive Units 12V               Cable Length                         Cable Gauge         Copper Area               Distribution               panel to Course Computer               Up to 5m 16ft                      8 AWG               6 mm               Up to 7m 23ft                      6 AWG               10 mm               Up to 16m 52ft                     4 AWG               16 mm                                                                                         8100402     Type 3 Drive Units 24V               Cable Length                         Cable Gauge         Copper Area               Distribution               panel to Course Computer               Up to 5m 16ft                      8 AWG               6 mm               Up to 7m 23ft                      6 AWG               10 mm               Up to 16m 52ft                     4 AWG               16 mm                                                                                         8100402               2 Remove the connector cover from the course computer               3 Connect the power supply cable to the course computer power                  terminals               Note The cable must be protected by a circuit breaker               see table for size                                   Power                 Supply                                                                   1  2                             Circuit                    CLUTCH   POWER MOTOR                             breaker                                                                                D8821Chapter 2 Installation                                                                                  25                          Drive Unit                          Circuit Breaker Size                          Type 1                              25                          Type 2 12V                        40                          Type 2 24V                        25                          Type 3                              40                          Sterndrive                          25                          Type CR                             25                                                                                                     810040322 ST70006000 Control Unit                          The ST6000 and ST7000 control units are identical in operation and                           main ST70006000 control unit should be mounted close                          to the steering station where it is                           normally viewed straight on for the best display legibility                           well protected against physical damage                           at least 9in 230mm from a compass                           at least 20in 500mm from radio receiving equipment                           accessible from behind to install and run cables                          Note The rear case is designed to breathe through a small duct in the                          cable boss to prevent the accumulation of moisture Direct exposure to                          the rear of the control unit must be avoided            Mounting                                   3                                          2         1                                                                          2         4                                                                                            D7461                          1 Cable boss 2 Fixing stud 3 Thumb nut 4 Sealing gasket26                                    TYPE 100300 Operation and Installation Handbook               1 Make sure that the mounting surface is smooth and flat               2 Use the template provided to mark the centres for the two fixing studs                  and the cable boss               Note Adjacent instruments should have 6mm 14in separation to allow               room for the protective covers               3 Drill two 4mm 532in diameter holes               4 Using a 50mm 2in diameter cutter drill the hole for the cable                  boss 1               5 Screw the two fixing studs 2 into the rear case of the control unit               6 Pass the cable tails through the large hole and secure the control unit                  with the thumb nuts 3 provided               Note The sealing gasket 4 is already attached to the rear case of the               control unit     Cabling               The control unit is provided with a SeaTalk cable fitted with a 3 pin socket               on each end               1 Plug one end of the cable into one of the two SeaTalk sockets on the                  back of the control unit               2 Run the SeaTalk cable back to the course computer               Note If more than one control unit is fitted the SeaTalk cable can be               connected to the free SeaTalk socket on the first control unit               3 Cut the remaining plug from the SeaTalk cable and connect to the the                  SeaTalk terminals on the course computer as shown in the following                  illustration                                                                                                                                   SeaTalk   SeaTalk CLUTCH     POWER                                                    Grey screen    Red      Yellow                                                                                       D10121Chapter 2 Installation                                                                                                    27                          If the vessel is already fitted with Autohelm  this should be                          connected to the course computer as shown using one of the standard                          SeaTalk interface cables The course computer will then supply power for                          the complete system                                                                  ST50 Instrument           ST7000 Control Unit                                                                                                                                                                                                 SeaTalk CLUTCH      POWER                                                                                                                                                 Grey screen    Red   Yellow                                                                                                                  D10131                                                                   ST50 Instrument             ST6000 Control Unit                                                                                                                                                                                            SeaTalk CLUTCH      POWER                                                                                                                                             Grey screen   Red       Yellow                                                                                                                      D1014128                                    TYPE 100300 Operation and Installation Handbook23 Fluxgate Compass               Correct positioning of the fluxgate compass is crucial if ultimate perform               ance is to be achieved To minimise gimbal disturbance the fluxgate               should ideally be positioned as near as possible to the pitch and roll centre               of the vessel                                      X                                        Y                       03L to 05L                                          L                                      X                                        Y                       03L to 05L                                          L                                                                                    D1942       Mounting                                          Vertical                                                      D1932Chapter 2 Installation                                                                               29                          1 Locate the fluxgate compass on a suitable vertical surface                          2 Drill four pilot holes and attach the fluxgate compass using the self                             tapping screws provided                          3 Make sure that the fluxgate is positioned at least 08m 2ft 6in away                             from the vessels steering compass in order to avoid deviation of both                             compasses To avoid compass deviation and reduction in sensitivity                             of the sensor the fluxgate must also be positioned as far away as                             possible from large iron masses                          Note If any doubt exists over magnetic suitability of the chosen site the                          position may be surveyed using a simple hand bearing compass The hand                          bearing compass should be fixed in the chosen position and the vessel                          swung through 360 degrees Relative differences in reading between the                          hand bearing compass and the vessels main steering compass should                          ideally not exceed 10 degrees on any heading            Cabling                          1 Run the cable back to the course computer                          2 Connect the to the fluxgate terminals on the course computer                                                                 FLUXGATE        JOYSTICK                                          Grey screen   Red   Green   Yellow      Blue                                                                                            D8901                          Note A 10m 30ft extension cable is available for larger installations                          part no D17430                                     TYPE 100300 Operation and Installation Handbook24 Rotary Rudder Reference Transducer                The rotary rudder reference transducer must be connected directly to the                tiller arm to provide accurate rudder position to the course computer If it                is more convenient the unit may be installed upside down However if                mounted this way the red and green wires must be reversed at the                course computer        Mounting                1 Using the self tapping screws provided mount the rudder reference                   transducer on a suitable base adjacent to the rudder stock                                           Tiller arm                             X                                                        Mounting base                                                                        D195                2 Make sure that the base height of the rudder reference transducer                   can maintain the correct vertical alignment between the rudder                   reference transducer arm and tiller arm as shown                 To give the precise rudder position the rudder reference transducer has                   a built in spring to remove any free play in the linkage to the tiller                  The rudder reference arm movement is limited to  60 degrees Care                   must be taken during installation to ensure that the rudder reference                   arm is opposite the point of cable entry when the rudder is amidships                   Failure to do this could result in damage if the rudder reference arm is                   driven onto its end stops by the steering systemChapter 2 Installation                                                                                     31                                                                                 60                                                                                maximum                                                                                travel                                         Cable                                  permitted                                         entry                                               Min                                                                                             75mm                                                                                             3in                              Parallel                                                                                             Max                                                                 90                         310mm                                                                                             122in                                     A                              Rudder amidships                                                      Min 101mm 4in                                                      A 140mm 55in                                                      Max 190mm 75in                                                                                                       D1962                          It is important to ensure that the dimensions set out above are within the                          set limits and that the tiller and rudder reference arms are parallel to each                          other                                                                                     Min 75mm                                                                                     3in                                                                                     Max 310mm                                                                                     122in                                                     40max                                                 A                                                     40max                                             Min 101mm 4in                                             A 140mm 55in                                             Max 190mm 75in                                                                                                D197                          1 With the rudder amidships the rudder reference arm should be                             opposite the point of cable entry and at 90 degrees to the connecting32                                    TYPE 100300 Operation and Installation Handbook                   bar Minor adjustments can be made by loosening the 3 securing                   screws and rotating the transducer body               2 The tiller pin must be positioned within the limits shown Ideally                  dimension A should be 140mm 55in However changes within the                  given limits will not degrade the autopilot performance but will slightly                  alter the scaling of the rudder angle display on the control unit The                  tiller pin is secured to the tiller arm using the self tapping screws                  provided               3 Cut the threaded rod to length and screw on the lock nuts Yand the                  ball pin sockets  the sockets can then be pressed onto the pins Move                  the rudder from side to side to ensure the linkage is free from any                  obstruction at all rudder angles     Cabling               1 Run the rudder reference cable back to the course computer               2 Connect to the rudder reference terminals on the course computer                                                                                                                                              GYRO 2     RUDDER REF     NMEA                                                         Grey screen   Red      Green   Blue                                                                                           D8941               Note A 10m 30ft extension cable is available for larger installations               part no D173Chapter 2 Installation                                                                                3325 Linear Feedback Transducer                          The Linear Feedback Transducer is designed for use with bullhorn type                          outboard installations                                          2                            7 8 3         9                                                                                       12                                    10        11                                                       6      5       4                1                                                                                            D7171            Mounting                          1 Operate the steering system so that the bullhorn ram 1 is positioned                             amidships                          2 Release the hydraulic pressure from the vessels hydraulic steering                             system if required Refer to the manufacturers instructions for                             correct procedures                          3 Loosen the starboard bolt that secures the bullhorn ram 1 shaft to                             the end bracket 2                          4 Assemble the Ubracket 3 over the end bracket 2 and the shaft of                             the bullhorn ram 1                          5 Hand tighten the starboard bullhorn bolt to hold the Ubracket 3 in                             position                          6 Fully open the hose clamps 6 using a flat bladed screwdriver                          7 Hang the hose clamps 6 over the bullhorn ram 1                          8 Site the spacers 4 on the bullhorn ram 1 and hold temporarily                             with adhesive tape                          9 Pull the shaft 9 out of the linear feedback transducer 5 until the                             alignment mark 10 is level with the end of the body 1134                                     TYPE 100300 Operation and Installation Handbook               10 Position the linear feedback transducer 5 on top of the spacers 4                   so that the threaded end of the shaft passes through the                   Ubracket 3               Note The linear feedback transducer should under normal circum               stances be assembled with the shaft 9 pointing towards starboard               However if it is not possible to orientate the unit in this way port installa               tion is possible providing the red and green wires are reversed at the               course computer               11 With the adjustment screw and barrel aligned with the spacers close                   the hose clamps 6 around the linear feedback transducer 5 and the                   bullhorn ram 1               12 Tighten the bullhorn bolt to retain the Ubracket 3               13 Fit and tighten the nut 7 and washer 8 to the shaft of the linear                   feedback transducer 5     Cabling               1 Run the linear feedback transducer cable back to the course                  computer               2 Connect to the course computer rudder reference terminals               Note To allow for movement of the bullhorn leave a loop of cable at the               end of the Linear Feedback Transducer                                            TM                                                                                                                                                                        GYRO 2   RUDDER REF     NM                                                             Grey screen   Red      Green     Blue                                                                                                 D8951Chapter 2 Installation                                                                             3526 Hydraulic Drive Systems                          This section covers the installation of hydraulic system components                          together with relevant plumbing and cabling procedures                          For optimum autopilot performance it is important that the pump specifica                          tions given below match the vessels steering ram            Pump to Cylinder Specifications                          Pump                         Capacity                          Type 1                       80 to 230cc 49 to 14cu in                          Type 2                       160 to 350cc 98 to 21cu in                          Type 3                       250 to 460cc 15 to 28cu in                          CR1                          350 to 500cc 21 to 30cu in                          CR2                          500 to 1200cc 30 to 73cu in                                                                                                8100404            Reversing Hydraulic Pumps Type 1 Type 2  Type 3            Mounting                          The hydraulic pump should be mounted in a horizontal position clear of                          spray and possible water immersion It should also be located as near as                          possible to the hydraulic steering cylinder                          Bolt the hydraulic pump to a substantial member to avoid vibration that                          could damage the  pipework            Cabling                          Using a suitably sized cable see below route the pump leads back to the                          course computer and connect to the motor terminals                          Type 1 Drive Unit                          Cable Length Drive Unit             Cable Gauge         Copper Area                          to Course Computer                          Up to 3m 10ft                      12 AWG              25 mm                          Up to 5m 16ft                      10 AWG              4 mm                          Up to 7m 23ft                      8 AWG               6 mm                          Up to 10m 32ft                     6 AWG               10 mm                          Up to 16m 52ft                     4 AWG               16 mm                                                                                                810040536                            TYPE 100300 Operation and Installation Handbook     Type 2 Drive Unit 12V     Cable Length Drive Unit              Cable Gauge        Copper Area     to Course Computer     Up to 5m 16ft                       8 AWG              6 mm     Up to 7m 23ft                       6 AWG              10 mm     Up to 16m 52ft                      4 AWG              16 mm                                                                         8100406     Type 2 Drive Unit 24V     Cable Length Drive Unit              Cable Gauge        Copper Area     to Course Computer     Up to 3m 10ft                       12 AWG             25 mm     Up to 5m 16ft                       10 AWG             4 mm     Up to 7m 23ft                       8 AWG              6 mm     Up to 10m 32ft                      6 AWG              10 mm     Up to 16m 52ft                      4 AWG              16 mm                                                                         8100405     Type 3 Drive Unit 12V     Cable Length Drive Unit              Cable Gauge        Copper Area     to Course Computer     Up to 5m 16ft                       8 AWG              6 mm     Up to 7m 23ft                       6 AWG              10 mm     Up to 16m 52ft                      4 AWG              16 mm                                                                         8100406     Type 3 Drive Unit 24V     Cable Length                          Cable Gauge        Copper Area     Distribution Panel to     Pump     Up to 3m 10ft                       8 AWG              6 mm     Up to 7m 22ft                       6 AWG              10 mm     Up to 16m 52ft                      4 AWG              16 mm                                                                         8100407Chapter 2 Installation                                                                             37                          Note The reversing hydraulic pumps do not require a clutch connection                          If the pump is to be used to drive a secondary steering ram a bypass                          valve will have to be fitted as shown in the following illustration                                      Relay                                                                                1   2                                                    Talk   SeaTalk CLUTCH   POWER   MOTOR                             Power                                                                                                  D9151                          Note A 5 amp relay should be used to energise the bypass valve The                          relay should have a 12V coil taking less than 500ma and be driven by the                          clutch output on the course computer connector            Plumbing                          There are three basic types of hydraulic steering systems                           two line system                           three line system                           two line pressurised system                          Typical connection points for the autopilot pump are shown for each type                          In all cases it is strongly recommended that the steering gear                          manufacturer is consulted                          All hoses used to fit the pump should match or exceed the specification of                          those used in the existing steering system38                          TYPE 100300 Operation and Installation Handbook     It is also necessary to ensure that the helm pump is fitted with reversing     check valves otherwise the autopilot pump will drive the helm pump     sometimes referred to as motoring the wheel in preference to moving the     ram Single helm pump systems without check valves should incorporate     a double pilot check valve and block available as part Z068 This is shown     in the following illustration                                  Check valve Z068                                                                D2743     Notes     1 A double pilot check valve may also be necessary on long tubing runs        Tubing expansion may result in poor autopilot performance The valve        should be installed close to the cylinder with the pump in between as        shown     2 If the vessel has two steering positions check valves will already be        fitted to ensure independent operation of the two wheels     Minimisation of hydraulic fluid loss during connection of the drive unit will     help to reduce the time and effort required later to bleed the system of     trapped air Absolute cleanliness is essential since even the smallest     particle of foreign matter could interfere with the correct function of the     steering system precision check valvesChapter 2 Installation                                                                                39            Two line system                          A typical two line steering system is shown in the following illustration                          Hydraulic fluid can be pumped into the ram in either direction depending                          on the direction of the helm pump rotation The autopilot pump is con                          nected to the system as shown                                                                 D2712            Two line pressurised system                          Two line pressurised systems have an external pressurised reservoir This                          reduces the possibility of inducing air into the system and any sponginess                          felt due to pipe expansion The autopilot pump is connected to the system                          as shown in the following illustration                          Note Refer to the manufacturers instructions on depressurising the system                                                                 D272240                                     TYPE 100300 Operation and Installation Handbook     Three line system               In a three line system hydraulic fluid flows in one direction only  out of the               helm pump to the ram and then returning from the other side of the ram to               the reservoir via a common return line               A uniflow valve block will be fitted in the system to ensure that all returned               fluid from the ram is directed back to the reservoir                                                        D2732     Bleeding the system               Correct bleeding of the hydraulic system is one of the most important               steps when installing a hydraulic pump The presence of air in the hydraulic               system will not only reduce performance of the autopilot but also the               overall operation of the steering system               Further to the manufacturers instructions for bleeding the steering               system the following procedures should be carried out to bleed the               autopilot pump              1 Press and hold the 10 degree key  the autopilot pump will try to drive                 the rudder to port              2 Counter this rudder movement by turning the helm to starboard to                 keep the rudder stationary This will cause any air in the pump to rise                 to the helm pump and exhaust into the  2 Installation                                                                              41                          3 Reverse this action to clear any air on the other side of the pump as                             follows                          4 Press and hold the 10 degree key the autopilot will try to drive the                             rudder to starboard                          5 Counter the rudder movement by turning the helm to port                          Note Monitor the reservoir tank at all times during the bleeding proce                          dure make sure it remains full of the hydraulic fluid recommended by the                          manufacturer If air is left in the system the steering will feel spongy                          particularly when the wheel is turned to the hardover position            Constant Running Hydraulic Pump            Mounting                          Bolt the constant running hydraulic pump to a suitable horizontal surface                          The service ports are tapped to 14in BSP and the reservoir port is                          tapped to 38in BSP Three NPT adaptors are included for conversion                          to NPT where required                                Reservoir port 38in BSP   Service port 14in BSP                                                                                        D765142                                    TYPE 100300 Operation and Installation Handbook     Cabling               The constant running interface must be used on all installations with               constant running hydraulic pumps The main power supply is led to the               interface and then onto the course computer The interface unit has               connections for the solenoid valves and the bypass valve if one is               required The pump should be wired as shown using the specified cable               size and designated circuit breaker                 Supply                           Main breaker                                                   Clutch drive                            3L 12V  50A                          45L 12V  70A                            3L 24V  30A                          45L 24V  40A                 To bypass                 valve                            25A                                                                                         Type CR                                                                                         interface unit                                                  Solenoid A cable                                                                               D2                                                                                                                                                                                      D1                                                                                                       SOLENOIDS                                                                                                               B                                                   M1 M2 SUPPLY CLUTCH                                                                                                                                                                                                         A                                                                                                                                                                                 BYPASS BATTERY                                                                                                                                                                                                                                                                                    VALVE                                                                                                                                                                                 RLY1                     Power pack motor supply                                                                                                                            D7781Chapter 2 Installation                                                                                43                          Pump Cable                          Cable Length                         Cable Gauge          Copper Area                          Distribution Panel to                          Pump                          Up to 3m 10ft                      8 AWG                6 mm                          Up to 7m 22ft                      6 AWG                10 mm                          Up to 16m 52ft                     4 AWG                16 mm                                                                                                   8100407                          Solenoid Cable                          Solenoid Cable Length                Cable Gauge          Copper Area                          Course Computer to Pump                          Up to 7m 23ft                      12 AWG               25 mm                          Up to 12m 39ft                     10 AWG               40 mm                          Up to 17m 55ft                     8 AWG                60 mm                                                                                                   8100408                          An isolator switch should be installed in the power supply to the complete                          system                          The solenoid valve connectors can only accept cable up to 12 AWG If                          larger cable is required 18 inches of 12 AWG should be used to wire to                          the connectors                          The Type CR Interface may also be connected to alternative constant                          running hydraulic pump providing                           the solenoid coils take less than 10 amps                           the response time of the solenoid valve is less than 80 milliseconds                           the operating voltage of the solenoid coils is the same as the course                             computer supply voltage                          It is important to minimise the overall cable length between the pump and                          the vessels power distribution panel44                                         TYPE 100300 Operation and Installation Handbook     Plumbing                If the autopilot operated hydraulic cylinder is independent of the manual                steering system a solenoid operated bypass valve                Z079 12VZ122 24V should be fitted to allow the cylinder to backdrive                when manual steering The bypass valve should be connected to the                bypass connector on the Type CR Interface Unit                The bypass valve should be mounted between the autopilot steering                cylinder ports and under normal circumstances be deenergised to allow                the cylinder to backdrive When the autopilot is engaged the valve is                energised by the Type CR Interface to allow the autopilot steering cylinder                to drive the rudder                                 Hydraulic cylinder                  Bypass valve                                                                           Autopilot                                                                           hydraulic                                                                           drive                  Manual steering system     Cable to course computer Bypass connector                                                                                       D7661                Note The bypass valve voltage must be matched to the course computer                supply voltage ie 12V or 24V                If the steering cylinder is unbalanced single ended a pilot operated                pressure relief valve must be connected as shown to enable excess oil to                be returned to the reservoir when the cylinder ram is  2 Installation                                                                                     45            Hydraulic Linear Actuator                          The hydraulic linear actuator with built in solenoid operated bypass valve                          and load limiting system is designed for use as a secondary autopilot                          steering cylinder The system is supplied prefilled and preplumbed for                          ease of installation                                                              6                 2                                         1                                         5                                         4                                                              9   7                                10                                                                  8        3             11                                                                                    X                              Drive     Dimension X                              Type 2    180mm 71in                              Type 3    267mm 105in                                                                                                        D7761                          1 Reservoir 2 Pump 3 Cylinder 4 Tiewrap 5 Clip 6 Reservoir hose 7 Pump hose A                          8 Pump hose B 9 Cylinder hose 10 Cylinder ball joint 11 Quadrant            Installation                          Caution                          It is important to note that the hydraulic linear actuator can exert a                          thrust of upto 2700 Ibs  this is the equivalent weight of a large                          family saloon car If there is any doubt about the strength of the                          existing tiller arm or quadrant the steering gear manufacturer                          must be consulted Also the mounting foot should be bolted to a                          substantial member and always over engineer to ensure reliability                          and maintenance of correct alignment46                         TYPE 100300 Operation and Installation Handbook     When siting the actuator the following points should be noted     1 The actuator mounting foot must be mounted to a horizontal surface        There is insufficient movement in the swivel joint for vertical mounting     View from above                                                              D10341     View from above                                                             D10351     2 The drive end must be at right angles to the hydraulic cylinder when        the tiller is amidships                                                     90                                                              D10371     View from aboveChapter 2 Installation                                                                                     47                          3 Accurate angular alignment between the hydraulic cylinder and the                             tiller arm plane of rotation is extremely important  under no                             circumstances should any misalignment exceed  5 degrees                                                                            5 Max                                                                            5 Max                                                                                              D10361                          View from astern                          Caution The push rod must not be shortened as it contains hydraulic fluid                          4 The push rod ball end must be attached to the tiller arm at the radius                             specified on page 45 Use the supplied fixing bolt with its flange                             positioned between the ball end and the tiller arm It is very important                             that this bolt is a tight fit in the tiller arm Use Loctite 638 or an                             equivalent to secure the tiller bar bolt and lock the securing nut                            A                                    C       Hole size X                                                                         Type 2 1196  1206mm                                                                 D       0471  0475in                                                                         Type 3 199  20mm                                                                 E                                                                         0783  0787in                                                                 F                            B                                                                 G       A Spring clip B Washer                                                                         C Washer D Push rod ball end                                                                         E Fixing bolt flange F Tiller arm                                                                         G Fixing nut                                             X                                                          D10461                          5 Position the reservoir 1 so that it is at least 150mm 6in above the                             pump 2 The pump 2 should be sited above the cylinder 3                          6 Use the cable tiewrap 4 to secure the reservoir 1 to the clip 548                                   TYPE 100300 Operation and Installation Handbook     Cabling               1 Run the pump and bypass valve cable back to the course computer               2 Wire to the course computer clutch and motor connections                                                                           1   2                                                              CLUTCH   POWER   MOTOR                                                                                       D9171     Final Preparations Before use               1 Remove the reservoir cap and replace with the supplied standard cap               2 Set the reservoir valve to the open position               Caution               Make sure the mechanical limits of the steering system stop               rudder movement before the cylinder reaches its end stops                failure to do this will damage the steering cylinder and will invali               date the warranty               3 Switch the Autopilot to Auto mode and using the 10 degree course                  change keys steer hardover to hardover to check for correct                  operation and any possible leaks               4 Setup the autopilot end stops as described in the autopilot installation                  handbook               WARNING               KEEP CLEAR OF MOVING STEERING LINKAGES AT ALL TIMESChapter 2 Installation                                                                                                                    4928 Mechanical Drive Systems            Rotary Drive Unit                          The rotary drive is coupled to the steering by a chain drive Most steering                          gear manufacturers supply special autopilot drive attachments many                          include this as standard The Edson Company is a good source            Mounting                          Having selected the position for attachment of the autopilot drive chain it                          is necessary to determine the chain reduction ratio                          Count the number of turns of the steering gear shaft driven sprocket                          when the rudder is driven from hardover to hardover Determine the                          sprocket sizes required from the following table                                                                                               Rotary Drive Chain Reduction Ratios                                                 Driven Sprocket                               Driver Sprocket                                                                                           7                               17                76                                        6                                                                   Chain Reduction Ratio                               15                76                                                                                           5                               13                57                                                                                           4                               15                57                               17                57                               13                38                                        3                               15                38                               17                38                               13                25                                        2                                 Type 2                               15                25                               17                25                               19                25                               25                25                                        1                                                                                                                              Type 1                                                                                                    1     2      3     4      5      6                                                                                                     Number of Driven Sprocket                                                                                                      Turns Hardover Hardover     D7571                          These ratios provide good steering performance for most vessels If the                          vessel is thought to have unusual steering  contact our                          Product Support Department or an authorised representative for advice                          A standard 38in or 12in pitch chain is recommended for the chain drive                          and ideally the drive sprocket should not have less than 15 teeth Bore                          and keyway dimensions for the drive unit sprocket are detailed in the                          following illustration It is essential that these bore and keyway dimensions                          are strictly adhered to All sprockets must be keyed set screwed to their                          shaft and finally secured with loctite50                            TYPE 100300 Operation and Installation Handbook        322mm  324mm                         1589mm  159mm       0127in  01275in                    06256in  06275in       Grub screw                                                946mm  961mm                                               03725in  03785in        19mm       075in                                         127mm                                                         05in                                                                   D7581     The drive unit must be bolted to a substantial frame member The     mounting foot is secured to the drive unit by four equally spaced allenhead     screws and it may be rotated through 90 degrees to provide a more     convenient mounting position if required In some cases it may be     necessary to fabricate a special frame to mount the drive unit     It should be noted that chain tension can exceed 500 lb 230Kg and     therefore an extremely rigid mounting structure is vital to maintain good     chain alignment Installation failures can occur in this area and over     engineering is strongly recommended for drive unit mounting All     fastenings should be secured with lock washers     Provisions must also be made for chain adjustment This is achieved by     removable shims placed under the mounting foot or alternatively by     elongated clearance holes in the mounting frameChapter 2 Installation                                                                              51                                                                                                  D7591                          Both sprockets must be accurately aligned to run in the same plane                          Correct alignment must be carefully checked by means of a straight edge                          The gearbox can be mounted in any position Additionally the drive                          sprocket may face in any direction as the steering sense can by reversing                          the polarity of the drive motor connection be corrected when installation is                          complete                          Finally the chain should be tensioned until it is just tight and there is                          minimal lost motion to the drive system Total lost motion between the                          driven sprocket attached to the steering system and the rudder stock                          should not under any circumstances exceed 2 of the total movement                          If lost motion exceeds this level it must be corrected otherwise steering                          performance will be impaired                          Having completed installation of the drive unit turn the steering wheel from                          hardover to hardover and check that the chain and sprockets driving the                          actuator move freely and are in alignment52                                   TYPE 100300 Operation and Installation Handbook     Cabling               The rotary actuator has electrical connections for both the drive motor               redblack cores and clutch twin cable with bluered cores Using a               suitable size cable see tables route back to the course computer and               connect to the clutch and motor terminals                                                                               1  2                                                          SeaTalk CLUTCH    POWER MOTOR                                                                                      D9021     Type 1 Drive Unit               Cable Length Drive Unit             Cable Gauge            Copper Area               to Course Computer               Up to 3m 10ft                      12 AWG                 25 mm               Up to 5m 16ft                      10 AWG                 4 mm               Up to 7m 23ft                      8 AWG                  6 mm               Up to 10m 32ft                     6 AWG                  10 mm               Up to 16m 52ft                     4 AWG                  16 mm                                                                                    8100405     Type 2 Drive Unit 12V               Cable Length Drive Unit             Cable Gauge            Copper Area               to Course Computer               Up to 5m 16ft                      8 AWG                  6 mm               Up to 7m 23ft                      6 AWG                  10 mm               Up to 16m 52ft                     4 AWG                  16 mm                                                                                    8100406Chapter 2 Installation                                                                                  53            Type 2 Drive Unit 24V                          Cable Length Drive Unit               Cable Gauge            Copper Area                          to Course Computer                          Up to 3m 10ft                        12 AWG                 25 mm                          Up to 5m 16ft                        10 AWG                 4 mm                          Up to 7m 23ft                        8 AWG                  6 mm                          Up to 10m 32ft                       6 AWG                  10 mm                          Up to 16m 52ft                       4 AWG                  16 mm                                                                                                   8100405            Linear Drive Unit                          The linear drive unit connects directly on to the rudder stock at the tiller                          arm radius shown below                          Drive Unit                         Tiller Radius B                          Type 1                             250mm 10in                          Type 2S                            250mm 10in                          Type 2L                            360mm 14in                                                                                                   8100409                          It is preferable to couple the linear drive unit to the rudder stock via an                          independent tiller arm Edson and Whitlock offer a standard fitting In                          certain cases however it may be possible to couple the pushrod to the                          same tiller arm or rudder quadrant employed by the main steering                          linkage                                                                     Mid Stroke                                                                        90            B                                                                                      D7601                          Caution The linear drive system can exert a thrust of over 1000Ib                          450Kg The steering gear manufacturer must be consulted if any doubt                          exists about the strength of the existing tiller arm or rudder quadrant54                                 TYPE 100300 Operation and Installation Handbook     Mounting            When siting the linear drive unit the following points should be noted             The drive unit mounting bracket can be attached to any horizontal or               vertical surface Also the drive unit can be mounted upside down if               required             The ball end fitting will allow up to 5 degrees misalignment between the               pushrod and tiller arm plane of rotation Accurate angular alignment is               extremely important and therefore under no circumstances should this               limit be exceeded             The drive unit must be at right angles to the tiller arm when the rudder is               amidships             The drive is clear of any bilge water                                        Tiller                                        arm                Fixing                bolt flange                Lock                washer                Hole dia                052in 13mm                                                                          D7611             The mounting bracket should be bolted to a substantial frame member               Always overengineer to ensure reliability and maintenance of               correct alignment            The pushrod ball end must be attached to the tiller arm using the adaptor            pin supplied with its flange positioned between the ball end and the tiller            arm It is vitally important that the lock washer supplied is used and that            the nut is tightened fully            The mounting bracket should be attached with four stainless steel 38in            bolts and locknutslock washers            Having installed the drive unit turn the steering wheel from hardover to            hardover and check that             no part of the drive unit fouls the vessels structure             the mechanical limit stop on the vessels steering system is reached               before the actuator reaches its mechanical limit             angular movement of the ball end fitting is less that 5 degreesChapter 2 Installation                                                                               55            Cabling                          The linear drive unit has electrical connections for both the drive motor and                          clutch Using a suitable size cable see tables route back to the course                          computer and connect to the clutch and motor terminals as shown                                                                                         1  2                                                                          lk CLUTCH   POWER MOTOR                                                                                                  D902a1            Type 1 Drive Unit                          Cable Length Drive Unit              Cable Gauge           Copper Area                          to Course Computer                          Up to 3m 10ft                       12 AWG                25 mm                          Up to 5m 16ft                       10 AWG                4 mm                          Up to 7m 23ft                       8 AWG                 6 mm                          Up to 10m 32ft                      6 AWG                 10 mm                          Up to 16m 52ft                      4 AWG                 16 mm                                                                                                8100405            Type 2 Drive Unit 12V                          Cable Length Drive Unit              Cable Gauge           Copper Area                          to Course Computer                          Up to 5m 16ft                       8 AWG                 6 mm                          Up to 7m 23ft                       6 AWG                 10 mm                          Up to 16m 52ft                      4 AWG                 16 mm                                                                                                810040656                                        TYPE 100300 Operation and Installation Handbook     Type 2 Drive Unit 24V               Cable Length Drive Unit                   Cable Gauge                   Copper Area               to Course Computer               Up to 3m 10ft                            12 AWG                        25 mm               Up to 5m 16ft                            10 AWG                        4 mm               Up to 7m 23ft                            8 AWG                         6 mm               Up to 10m 32ft                           6 AWG                         10 mm               Up to 16m 52ft                           4 AWG                         16 mm                                                                                                          8100405     Stern drive Actuator               The stern drive actuator can be fitted to power assisted Stern drive               systems made by VolvoPenta Mercruiser OMC and Yamaha Different               installation kits are available to cover most of these installations               Note Older Volvo steering systems Pre type 872215 require an adaptor               bracket D129     Mounting     Volvo Pre type 872215               Fitting to this type of engine requires an adaptor bracket M81139               The stern drive actuator should be connected to the centre hole on the               tiller arm On twin engine installations this is the position used to connect               the engine tie bar to link the two tiller arms                                                         Adaptor pin              Adaptor pin                                                         Multiengine mount     Single engine mount                                                           Small                  Mounting                                 spring                  bracket                                  clip                                                                      Split pin                                                                                            Nyloc nut                  Hexagonal                  key bolt    Spring           Bracket     Location                  2 off     washer 2 off   clamp       pin                                                                                                   D7681Chapter 2 Installation                                                                                    57                          1 Push the mounting bracket behind the steering cable sliding the                             location pins either side top and bottom of the Volvo power steering                             block                          2 The bracket clamp hinges onto the mounting bracket and is located                             using the two allenhead key bolts Tighten the two bolts evenly until                             the bracket is securely located                              D129 Mounting bracket                              Steering                              cable                                             Location pin                              D129 Mounting bracket        Bracket clamp                                                                                Volvo Penta                                                                                steering valve block                                                                               Valve shoulder to                                                                               remain out of bracket                              Steering cable        Cable clamp nut                                         Bracket     Large diameter                                                                               Valve block                              Cable                              clamp nut        Spool valve shoulder                                                                                                  D7691                          3 Uncouple the engine tie bar from the outdrive tiller arm by bending                             back the locking tabs and removing the cotter pin This should be                             replaced with the multiengine adaptor pin Make sure that it is                             secured properly with a split pin on single engine installations fit the                             single engine adaptor pin in the vacant middle hole in the tiller arm58                                  TYPE 100300 Operation and Installation Handbook                  Drive unit                 Valve block                                                   Small spring clip             Engine tie bar                 Drive unit      Split pin                   Split pin                                                                                                  D7701              4 Attach the drive unit to the mounting bracket as shown above and                 secure split pin provided The small spring clip can then be used to                 attach the drive unit to the adaptor pin              5 Slowly turn the steering system from hardover to hardover It is most                 important that the drive unit and the adaptor pin bracket do not touch                 any part of the engine or steering system     Volvo Post type 872215              1 Remove the locating pin that attaches the cable rod to the tiller end                 block and replace with the girdle support bracket as shown                Safety clip              Locating bolts      Split pin                                         Shakeproof                                         washers                Adaptor pin              Girdle support    Sprung location                bracket                  bracket           pin          D7441Chapter 2 Installation                                                                             59                                                                      Girdle support                                                                      bracket                                                                      Tiller end block                                                                      Split pin                                                                                  D7451                          2 Secure the assembly with the split pin supplied                          3 Install the adaptor pin bracket to the cable end sheath                                                                            Adaptor                                                                            bracket                                                                            Aft                                                                            Cable end                                                                            sheath                                                      Shoulder                                                                                           D9251                          Note The adaptor pin bracket must sit against but not on the shoulder of                          the cable end sheath Also it is important that the securing bolts are                          sternside of the steering cable end sheath                          4 Ensure that the bracket remains vertical and tighten the locking bolts                          5 Rotate the girdle support bracket so that locator pin is facing                             forwards                          6 Position the stern drive actuator so as to locate the fixed support pin                             on the girdle support bracket into the hole in the girdle tube60                           TYPE 100300 Operation and Installation Handbook                                               Girdle tube                                                                        D9261     7 Carefully twist and lower the actuator into the girdle support bracket        until the spring pin locates into the opposite side of the girdle tube     Caution It is most important that both the solid and spring location pins     are fully engaged in the actuator girdle tube Failure to do so will result in     autopilot failure and possible steering system damage     8 Position the drive unit pushrod over the top of the adaptor pin and        secure with the safety clip     9 Slowly turn the steering system from hardover to hardover The drive        unit and the adaptor pin bracket must not touch any part of the engine        or steering system This includes any engine hoses that may have        only passing contact with the autopilot actuator after a time these        will wear and ultimately failChapter 2 Installation                                                                                  61                                      1 Remove the locating pin that attaches the cable end sheath to the tiller                             end block                          2 Replace the locating pin with the girdle support bracket as shown                                       Cable end sheath                               Girdle                                                                                      support                                                                                      bracket                                                                                      Split                                                                                      pin                                                                                      Tiller                                                                                      end block                                                                                               R745a1                          3 Secure the assembly with the split pin supplied                          4 With the helm turned hard to port assemble the adaptor pin bracket                             to the cable end sheath as shown                                                          65in 165mm                                                            Cable end                                                            sheath                            Adaptor                            bracket             Forward                              D10031                          Note The securing bolts must be on the front or bow of the boat side                          cable end sheath Also the bracket should be positioned 65in 165mm                          from the girdle support bracket62                        TYPE 100300 Operation and Installation Handbook     5 Make sure that the bracket remains vertical and tighten the two        locating bolts     6 Rotate the girdle support bracket so that the spring locator pin is        facing forwards     7 Position the stern drive actuator so as to locate the fixed support        pin on the girdle support bracket into its location hole in the girdle        tube                                             Girdle tube                                                                   D10021     8 Carefully twist and lower the actuator in to the girdle support        bracket until the spring pin locates into the opposite side of the        girdle tube     Note Both the solid and spring location pins must be fully engaged in     the actuator girdle tube failure to do so will result in autopilot     failure     9 Position the drive unit pushrod over the top of the adaptor pin and        secure with the safety clip     10 Slowly turn the steering system from hardover to hardover     Note It is most important that the drive unit and the adaptor pinChapter 2 Installation                                                                           63                          bracket do not touch any part of the engine or steering system This                          includes any engine hoses that may have a passing contact with the                          autopilot actuator after a time these will wear and ultimately fail            Mounting in a Restricted Area                          If an obstruction prevents installation of the drive unit as supplied the                          main body can be rotated relative to the mounting bracket as follows                          1 Remove the two fixing screws and carefully slide the cover                             forwards ensuring that the four cables do not pull away from the                             plugs inside the cover                          2 Loosen off the lock nut and rotate the main body as required                          3 Re tighten the lock nut securely making sure that the lock nut is                             no more than one turn from the start of the thread                          4 Replace the cover taking care not to crimp any cables                          5 Using the steering wheel move from hard over to hard over and                             check that no part of the drive unit contacts any part of the vessel                             fittings64                                    TYPE 100300 Operation and Installation Handbook                                                  Fixing screw                           Lock nut            Front cover                                                                                D4092     Cabling               1 Plug in the power cable supplied with the drive unit making sure                  that the connector is locked in place by turning the locking ring                  clockwise               2 Run the cable back to the course computer Secure the cable                  close to the drive unit but allowing sufficient free length to                  accommodate the drive unit movement               3 Once again using the steering wheel to move the rudder from                  hard over to hard over check that the cable does not catch on                  any part of the vesselfittings               4 The actuator cable has electrical connections for both the drive                  motor and the clutch Connect to the course computer  2 Installation                                                                           65                              labelled clutch and motor as shown                                                                                       1  2                                                                       lk CLUTCH    POWER MOTOR                                                                    Black          Blue                                                                    Red            Brown                                                                                             D912129 Auxiliary Alarm                          The auxiliary alarm is waterproof and therefore can be mounted in                          any position A foam seal on the mounting flange ensures a watertight                          joint to the mounting surface                          The auxiliary alarm must be connected to the system via an NMEA                          interface                          1 Drill a 78in 22mm diameter hole through the mounting panel                             as shown                          2 Pass the two way connector block and cable through the drilled                             hole                          3 Mount the auxiliary alarm in position using the four self tapping                             screws supplied66                                                                TYPE 100300 Operation and Installation Handbook        Cabling                                                                                                      Grey screen                                          ALARM SEATALK SEATALK                                                 IN                               NMEA                                                                                                      Red                                                 OUT                                                                                                    Yellow                                                                           SeaTalk   SeaTalk CLUTCH                               WINDVANE                                                                                                                      D9821                  Connect the NMEA interface to the alarm and course computer as                  shown210 Joystick                  The mounting surface must be smooth and flat to ensure that there is                  adequate waterproofing                  1 Use the template provided to mark the centers for the two fixing                     holes and outline of the body aperture                  2 Drill the fixing holes and cutout the aperture for the body                  3 Remove the mounting template and peel off the protective paper                     from the rear of the weather gasket and fix to the mounting                     surface                  4 Pass the signal cable through the body aperture and secure the                     Joystick with the thumb nuts  2 Installation                                                                                   67                                                                              D10041            Cabling                          The Joystick is supplied with 26ft 8m of cable which should be                          connected to the course computer as shown                                                                   FLUXGATE             JOYSTICK   GYRO                              Grey screen   Red   Green   Blue                                                                                                      D9841                          Note Only one joystick can be connected211 Masthead Transducer sail only                          To enable wind information to be made available to the SeaTalk                          system the wind transducer must be connected to the NMEA                          interface box68                                    TYPE 100300 Operation and Installation Handbook     Mounting               1 With the threaded end of the mounting block facing forwards                  mark the position for the self tapping screws               2 Drill the holes using the supplied 40mm 532in drill               3 Attach the mounting block to the mast using a suitable sealing                  compound               4 Tighten the locking ring securely                               1                 2                                                                      D7561               1 Mounting block 2 Locking ring     Cabling               1 Cut the cable with sufficent length to run from the monting block                  to the NMEA interface box               2 Feed the cable down the mast                   Note If the mast is deck stepped the cable should be passed                   through the deck and sealed using a proprietry gland fitting               3 Connect the cable to the NMEA interface box as shownChapter 2 Installation                                                                              69                                                    ALARM SEATALK SEATALK                                                                     IN                                         NMEA                                                                     OUT                                         WINDVANE                                                                                  SeaTalk            SeaTalk CLUTCH                           Grey screen                                    Red   Yellow                                                                                           D1021170                                        TYPE 100300 Operation and Installation Handbook                     Note The yellow connection from the mast head transducer is not                     connected at the NMEA interface212 Interfacing to other manufacturers equipment NMEA        Course Computer NMEA ports                     The type 100 and 300 course computers have NMEA 0183 input and                     output ports Sentances decoded are as follows        Input Port                     NMEA 0183 Data          NMEA Header Received                     Cross Track Error       APA APB RMB XTE XTR                     Bearing to Waypoint     BPI BWR BWC BER BEC RMB APB                     Distance to Waypoint BPI BWR BWC BER BEC RMB WDR WDC                     Waypoint Number         APB BPI BWR BWC BER BEC RMB APA                                             WDR WDC BOD WCV                     Water Speed             VHW                     through the water                     Apparent Wind Angle VWR                           GGA GLL GXA RMA RMC GXP GDF                                             GDP GDA GOF GOP GLF GLP GLA                                             GOA IMA GXF                     COGSOG                 VTG RMA RMC VTA                     Variation               HDG RMA RMC HVD HVM        Output PortChapter 2 Installation                                                                      71                          NMEA 0183 Data                NMEA Header Transmitted                          Cross Track Error             XTE                          Bearing to Waypoint           BWC                          Distance to Waypoint          BWC                          Waypoint Number               BWC                          Latitude and Longitude        GLL                          Magnetic Heading              HDG HDM HDT                          True Heading                  HDT                          Locked Autopilot Heading      HSC                          Course Over Ground            VTG                          Speed Over Ground             VTG                          FixNo Fix                    GLL                                                                                         8100411            Cabling                          Connect the NMEA output from a GPS Loran Decca etc to the                          NMEA input terminals on the course computer                               Type 100300                              Course Computer                                                               GPS                                                                                              Loran                               NMEA     SeaTalk                                                              Decca                                                                 NMEA out                                                                      D1064172                                   TYPE 100300 Operation and Installation Handbook             Connect the NMEA input on the radar etc to the NMEA output             terminals on the course computer                  Type 100300                 Course Computer                                                                     Radar etc                  NMEA     SeaTalk                                                       NMEA in                                                               D10651     ST6000ST7000 Control Unit NMEA Input             The ST6000ST7000 control units are fitted with an NMEA input port             sentances decoded are as followsChapter 2 Installation                                                                                73                          NMEA 0183 Data                 NMEA Received Header                          Bearing to Waypoint            APB BPI BWR BWC BER BEC RMB                          Distance to Waypoint           WDR WDC BPI BWR BWC BER                                                         BEC RMB                          Waypoint Number                APB APA BPI BWR WDR BWC                                                         WDC RMB BOD WCV BER BEC                          Speed through water          VHW                          Apparent Wind Speed and        VWR                          Direction                          Latitude and Longitude         GLL                          COG and SOG                    VTG                          Cross Track Error              XTE XTR APA APB RMB                                                                                                   8100412            Cabling                          Connect the NMEA output from either a GPS Loran Decca Speed                          or Wind instrument to the NMEA input on the control unit                                                                   ST7000 Control Unit                                                                                                                               GPS                                       Loran                                      Decca                                  Wind Instrument                                 Speed Instrument                                                                                                                     NMEA out                                            Data 0v                   Blue                                            Data tx                   Red                D10661            NMEA Interface                          The NMEA interface is primarily designed to allow operation with                          other manufacturers equipment by providing conversion between                          SeaTalk and NMEA 0183 data format Sentances decoded and                          transmitted are as follows74                       TYPE 100300 Operation and Installation Handbook     Data                  SeaTalk instrument            Transmitted                           required                      NMEA                                                         Header     Cross Track Error     Navcenter or Navdata or       APB                           GPS     Bearing to            Navcenter or Navdata or       BWC     Waypoint              GPS     Distance to           Navcenter or Navdata or       BWC     waypoint              GPS     Waypoint Number       Navcenter or Navdata or       BWC                           GPS     Apparent wind         Wind                          VWR     speed and     direction     Boat Speed            Speed or Tridata              VHW     Through water     Water Depth           Depth or Tridata              DBT     Longitude and         GPS or Navcenter or           GLL     Latitude              Navdata     Magnetic Heading      Compass or SeaTalk            HDM HDG                           Autopilot                     VHW     True Heading          Compass or SeaTalk            HDT VHW                           Autopilot     Locked autopilot      SeaTalk Autopilot             HSC     heading     Water Temperature Speed or Tridata                  MTW     Course over the       GPS or Navdata or             VTGChapter 2 Installation                                                                                        75                          NMEA 0183 Data                        NMEA Header Transmitted                          Cross Track Error                     XTE                          Bearing to Waypoint                   BWC                          Distance to Waypoint                  BWC                          Waypoint Number                       BWC                          Latitude and Longitude                GLL                          Magnetic Heading                      HDG HDM HDT                          True Heading                          HDT                          Locked Autopilot                                                                HSC                          Heading                          Course Over Ground                    VTG                          Speed Over Ground                     VTG                          FixNo Fix                            GLL                                                                                                          8100411            Cabling                                                                        GPS                                                                       Loran                                             Radar etc               Decca                                                                  Wind Instrument                                                                 Speed Instrument                                                                          Grey screen   Red    Yellow                                                                                                         OUT      IN                                       WINDVANE     NMEA                                                                                                                                   ALARM SEATALK SEATALK                                                                         SeaTalk      SeaTalk CLUTCH                                                                                                            D8961                           Connect the NMEA interface box to the course computer SeaTalk                            connection or alternatively any other SeaTalk product using one of                            the available interface cables                           Other manufacturers equipment can now be connected to the                            NMEA in or NMEA out connections                          Note Only one transmitter should ever be connected to an NMEA76                                       TYPE 100300 Operation and Installation  3 Functional Test                  This section provides detailed information related to complete system                  testing equipment calibration and initial sea trials31 System test                  The steering system and drive unitrudder reference transducer should be                  carefully inspected and the following points checked using the steering                  wheel to drive the vessels steering from hardover to hardover                   the steering system reaches the rudder end stops before the drive                     actuator reaches its end stops LinearStern Drive                   no part of the autopilot drive system fouls any part of the steering                     system or vessels structure through full travel                   the mechanical alignment of the drive unit is as specified in this hand                     book                   the mechanical alignment of the rudder reference transducer is as                     specified in this handbook                   all connecting wires are secured clear of the bilge and cannot foul any                     part of the steering system All connectors are tightly secured                   all securing bolts are fully tightened and mechanical locking arrange                     ments as specified are in place32 Switchon                  Switch on the electrical supply from the main panel All control units will                  emit a short beep and display the autopilot type either ST6000 or                  ST7000 Within 2 seconds Standby will be displayed to indicate that the                  autopilot is in Standby modeChapter 3 Functional Test                                                                          7733 Rudder angle sense            ST7000 control unit                        Move the wheel to produce a starboard turn The rudder angle display                        should move to the right                                30                           30                                     20     RUDDER   20                                          10  0   10                                                                                     D10151                        If the display moves to the left the red and green wires from the rudder                        reference transducer must be reversed            ST6000 control unit                        Press Display twice                        Move the wheel to produce a starboard turn The rudder angle should                                                              w                        increase and the direction indicator   be displayed                                                                           D10291                              v                        If the   rudder angle indicator is displayed the red and green wires from                        the rudder reference transducer should be reversed34 Rudder angle alignment                        With the rudder amidships see if the rudder angle display reads zero                        Misalignment up to  7 degrees can be removed in the calibration                        sequence which is explained later in this section If the misalignment is                        greater than 7 degrees the rudder reference should be mechanically                        adjusted to be within the  7 degree limit78                                      TYPE 100300 Operation and Installation Handbook35 Operating sense                 The operating sense of the autopilot can be checked as follows                 1 Push AUTO                 2 Press the 10 degree key This should move the rudder a few                    degrees to produce a turn to starboard If the rudder moves                    hardover to port the motor connections at the course computer                    should be reversed36 Rudder deadband                 The factory preset rudder deadband level will provide stable rudder                 positioning on most steering systems On some steering systems where                 a rotary or hydraulic drive unit is sited a long way from the rudder slight                 instability may occur This can be removed by increasing the rudder                 damping level in calibration Any increase should be minimised as it will                 reduce the autopilots course keeping accuracy37 Mechanical test Linear Rotary  Hydraulic Drives                 WARNING When the steering system is being moved manually or                 under drive from the autopilot do not touch any part of the system                 The forces exerted are considerable and could cause injury                 1 Push AUTO                 2 Press the 10 degree key to drive the rudder hardover onto the end                    stops                 Note This may require increasing the rudder limit in the calibration mode                 3 Make sure the drive unit mounting shows no sign of movement                 4 For hydraulic systems make sure there is no seepage of hydraulic                    fluid and that the steering ram moves smoothly                 Caution If the installation is a non Autohelm Constant Running                 Pump firstly check that the system includes a pressure relief valve                 Failure to do this could cause damage to the steering system                 5 Repeat driving the rudder hardover to the opposite end stop        Current limit and cutout                 When the rudder is driven onto the end stops the power to the drive will be                 cut out after a few seconds  this is normal Drive will only be restored if the                 rudder moves away from the end stop or if drive is required in the opposite                  3 Functional Test                                                                        7938 Mechanical Test Stern Drive                        It is recommended that the Auto Release facility is used when a Autohelm                        mechanical stern drive actuator is installed This should be switched on in                        calibration                        1 Manually drive the steering hardover to starboard                        2 With the engines running engage Auto and with repeated presses of                           the 10 degree key drive the steering to the opposite lock port                        3 The autopilot should drive the steering onto the end stops sound an                           alarm display the Release message and then revert to Standby                        4 Reengage the autopilot Auto and repeat the driving the steering                           hardover to starboard using the 10 degree key                        5 The autopilot should again drive onto the end stop sound an alarm                           display Release and return to Standby                        Note If the unit sounds the alarm and displays Release before reaching                        the opposite lock carefully check the vessels steering system for any                        stiffness or mechanical jamming                        If the condition persists set the Auto Release function to off 0 in                        calibration and contact the Product Support Department at Autohelm for                        further advice                        Note The Auto Release function should always be set to off 0 in                        calibration if using any drive unit other than a stern drive actuator39 Setting the Autopilot Rudder Limit All drives                        Having checked the correct functioning of the drive unit and the appropri                        ate End Stop CutoutAuto Release function the programmable rudder                        angle unit should be set                        The rudder angle limit sets the maximum angle to which the autopilot will                        move the rudder This should be set to just less than the vessels mechani                        cal limit stop to avoid putting the steering system under unnecessary load                        Using the rudder angle display whilst manually moving the helm record                        maximum rudder angle in both directions Set up the rudder angle limit in                        calibration mode see page 82 to 5 degrees less than the minimum angle                        recorded80                                       TYPE 100300 Operation and Installation Handbook310 GyroPlus Offset and Drift Compensation                 The GyroPlus uses the latest generation solidstate rate gyro to enhance                 steering performance at response level 3 see Calibration for details Like                 all rate gyros the GyroPlus is subject to offset and drift However this is                 automatically compensated for whenever the autopilot is in AUTO mode                 When the GyroPlus is initially installed it is important that offset and drift                 compensation  a onceonly operation is carried out before selecting                 response level 3  failure to carry out this procedure will result in rapid                 course changes when level 3 is selected        Procedure                 Compensation for offset and drift is achieved by simply using the autopilot                 in response level 1 or 2 for at least 5 minutes before you select level 3                 Alternatively if you want to use response level 3 as soon as you engage                 AUTO then the following procedure must be carried out                 1 Moor the vessel so that the heading remains constant                 2 Press AUTO and leave for at least 5 minutes                 3 After 5 minutes press STANDBY to return to standby mode The                    autopilot will nor have stored the compensation value for future useChapter 4 Calibration                                                                         81Chapter 4 Calibration41 Recommended Settings                         As supplied the ST7000 can be switched on and tested safely without any                         adjustments to the factory calibration settings                         The table below lists the suggested settings for sailingpower displace                         ment and planing power vessels These will provide good performance for                         initial sea trials and can be fine tuned later to optimise performance                                                                       Vessel Type                                                              Displacement        Planing                                                              Factory Preset      Set to                         Rudder Gain level                  5                   4                         Rate Gain level                    7                   4                         Rudder Angle Limit                   30                  30                         degrees                         Turn Rate Limit                      20                  12                         degreessec                         Cruise Speed knots                 8                   25                         Off Course Alarm                     20                  20                         degrees                         Trim Level                           1                   3                         Auto Adapt                        off             on                                                     Autopilot Drive Unit Type                                           Mechanica Stern             Hydraulic Hydraulic                                           Drive     Drive             Drive     Linear                                           Factory       Set to        Set to         Set to                                           Preset                         Drive Type        3             3             4              3                         Rudder            1             1             1              3                         Position                         Deadband                         level                         Auto Release off                on            off            off82                                        Type 100300 Operation and Installation Handbook42 Selecting calibration                 To select calibration                  Press Standby                  Press and hold Track and Display for 2 seconds to access the                    following display                   ST7000                         30                          30                              20     RUDDER   20                                   10  0   10                   ST6000                                                                   D10301                  Press and hold Track and Display for a further 2 seconds to access                    the following display                   ST7000                                                          Cal                   ST6000                                                                 Cal                                                                   D10311Chapter 4 Calibration                                                                                    8343 Adjusting calibration                         In calibration the Display key is used to scroll through the menu The                         displayed value is adjusted using the Response keys hold down for fast                         scroll                         Note If the CAL display reappears at any time during calibration press                         Display to advance to the next menu level                         Once calibration has been carried out further adjustment can be made at                         any time            Rudder Gain                         Rudder Gain controls the amount of rudder the pilot will apply to turn onto                         a new heading A correctly set rudder gain will for example turns the                         vessel crisply onto the new heading with an overshoot of no more than 2 to                         5 degrees for a 40 degree course change A high rudder gain setting will                         result in oversteer recognized as an overshoot of more than 5 degrees                         A rudder gain level that is too low will result in understeer giving poor                         steering performance                         WARNING It is most important that the rudder gain is correctly set                         on planing craft Incorrect adjustment will lead to poor steering                         performance and is dangerous at high speeds                         The settings available are as follows                         Range                   1 to 9                         Recommended             5   Displacement                         setting                 5   Semi displacement                                                 4   Planing                                                 3   Stern drive                                                                                                     810041784                                  Type 100300 Operation and Installation Handbook     Rate Level             Rate level controls the amount of rudder the pilot will apply to reduce the             speed at which the vessel is turning This is also known as counter rudder             and is only used in response level 3             The settings available are as follows             Range                   1 to 9             Recommended             7   Displacement             setting                 7   Semi displacement                                     7   Planing                                     5   Stern drive                                                                                  8100418     Rudder Offset Helm Adjust             Rudder Offset sets the control head to read zero degrees of rudder when             the helm is positioned amidships             The range available is as follows             Range                   7 to 7 degrees             Default Setting 0                                                                                  8100419     Rudder Limit             Rudder Limit restricts autopilot rudder movement to just less than the             steering systems mechanical stops This avoids putting the steering             system under unnecessary load             The range available is as follows             Range                   15 to 40 degrees             Default setting 30 degrees                                                                                  8100420Chapter 4 Calibration                                                                               85            Turn Rate                         Turn Rate is the rate in degress per second at which the vessel will turn                         when course changes are made via the autopilot                         The settings available are as follows                         Range                   5 to 20 degrees per second                         Default setting 20 degrees Displacement                                         15 degrees Semi displacement and                                         planing                                           8 degrees Stern drive                                                                                               8100421                         Turn Rate limit does not apply in power steer or joystick modes            Cruise Speed                         Cruise Speed should be set to the vessels normal cruising speed and is                         used in track mode                         Note If boat speed is available on either the SeaTalk bus or via the NMEA                         input this will be taken and used in preference to the Calibration Cruise                         Speed                         The range available is as follows                         Range                   4 to 60 knots                         Recommended             6   Displacement                         setting                 8   Semi displacement                                                 20 Planing                                                 20 Stern drive                                                                                                8100422            Off Course Limit                         Off Course Limit warns you if the autopilot is unable to maintain its set                         course and has subsequently strayed more than the set limit for more than                         20 seconds                         The off course alarm settings available are as follows                         Range                   15 to 40 degrees                         Default setting 20 degrees                                                                                                810042386                                  Type 100300 Operation and Installation Handbook     Trim Level             Trim Level sets the level for automatic trim which applies additional rudder             to correct for unbalanced propeller torque on twin engine installations or             weather helm             The Trim Level settings available are as follows rate of trim increases with             trim level             Range                   0 to 4             Default setting 2 Displacement                             3 Semi displacement planing and                             stern drive                                                                                    81004 24     Joystick Mode Manual Type             Power steer selects the Joystick mode of operation Proportional or Bang             Bang             Proportional applies rudder in proportion to Joystick movement  the             further the Joystick is held over the greater the applied rudder             BangBang applies continous rudder drive in the direction of lever move             ment To improve control the speed of rudder movement changes with the             angle of the lever For maximum speed push the lever hardover If the lever             is returned to the center position the rudder will remain in its current             position             The settings available are as follows              Range                  0    OFF                                     1    Proportional                                     2    BangBang              Default setting 1                                                                                    8100425     Drive Option             Drive Option sets the type of drive used by your vessel mechanical with             rudder reference or hydraulic with rudder reference             The settings available are as follows             Range                   1 to 4             Default setting 1           Future use                             2           Future use                             3           Displacement and stern drive                             4           All hydraulic installations                                                                                    8100426Chapter 4 Calibration                                                                                 87            Rudder Deadband Rudder Damping                         The factory setting for Rudder Deadband provides stable rudder position                         ing on most steering systems However some steering systems that use                         a rotary or hydraulic drive unit a long way from the rudder may experience                         slight instability This instability can be minimised by increasing the setting                         The settings available are as follows                         Range                   1 to 9                         Default setting 1                                                                                                  8100427            Magnetic Variation                         Variation tells other equipment the level of magnetic variation present at                         the boats current position Local variation should be entered using the                         appropriate keys                         The settings available are as follows                         Range                    30 degrees West to 30 degrees East                         Default setting Off                                                                                                  8100428            Auto Adapt                         It may be noticed that the autopilot tends to be a little less stable on                         northerly headings in higher latitudes of the northern hemisphere and                         southerly headings in the southern hemisphere This is caused by the                         increasing angle of dip of the earths magnetic field at higher latitudes This                         has the effect of amplifying the rudder gain on northerly southerly                         headings affecting all magnetic compasses and getting worse the further                         away from the equator you are                         The autopilot is able to compensate for this and provide precise course                         keeping on all headings by automatically adjusting the gain of the autopilot                         depending on the heading                         It is recommended that for high speed craft the Auto Adapt facility is                         selected This automatically reduces the effects of                          heading instability                         This feature is selected in calibration by entering the vessels operating                         latitude When selected it automatically adjusts the Rudder Gain depending                         on heading removing the need for manual adjustment88                                     Type 100300 Operation and Installation Handbook                Note If Auto Adapt is not selected manual adjustment of rudder gain is                normally required when going from Northerly to Southerly headings or vice                versa Failure to do so can lead to poor course keeping                The settings available are as follows                Range                   0 Off                                        1 North                                        2 South                Default setting 1 North                                                                                   8100429     Latitude                Latitude is used to compensate for  headings errors                The settings available are as follows                Range                   0 to 80 degrees                Default setting 0 degrees                                                                                   8100430     Wind Trim                Wind trim varies the response of the autopilot in Vane mode                                        1  Fast response                Range                                        2  Slow response                Default setting 1                                                                                   8100431     Response Level                This sets the response level when the pilot is switched on                The settings available are as follows                Range                   Level 1 Automatic sea state control                                        Level 2 Automatic sea state inhibit                                        Level 3 Automatic sea state inhibit                                        counter rudder                Default setting Level 1                                                                                   81004 32Chapter 4 Calibration                                                                                   89            Auto Release manual override                         Auto Release provides emergency manual override should it be neces                         sary for example to avoid an obstacle at the last moment It is used with                         an Autohelm stern drive actuator For all other drive systems Auto release                         should be turned off                         The settings available are as follows                         Range                   0  Off                                                 1  On                         Default setting NA Displacement                                         NA Semi displacement                                         NA Planing                                         1 On Stern drive                                                                                                    810043344 Saving Calibration Mode                         To exit calibration mode and save all changes press and hold Track and                         Display for 2 seconds                         Changes made to calibration settings can while still in the calibration                         mode be cancelled by quitting as follows                         Press Standby90                                      Type 100300 Operation and Installation Handbook45 Display Contrast Adjustment ST7000 only                The contrast of the LCD display can be adjusted to suit a wide range of                viewing angles                 Press Display and Track together momentarily                      30                            30                           20     RUDDER   20                                10  0   10                                                                D10161                                                         Cal                 Press Response v to increase contrast suits viewing from below                 Press Response w to decrease contrast suits viewing from above                                                                                Decrease                                                                                contrast ratio                                                                                   Normal                                                                                   viewing                                                                                   position                                                                                Increase                                                                                contrast ratio                                                                                              D10171                To store the contrast selection press Display and Track together                momentarily46 Permanent Watch Alarm SFIA                If a permanent watch alarm is required please contact the Autohelm                Product Support Department or an authorised dealer for further informa                tion47 Recording Calibration Settings                Having fined tuned the calibration settings during initial sea trials record                them in the following table for future  5 Initial Sea Trials                                                                          91Chapter 5 Initial Sea Trials51 Initial Sea Trials                          Initial sea trials should be carried out in calm conditions with plenty of sea                          room As the vessel will be constantly changing heading it is most                          important to maintain a constant look out                          Before sea trials                           Read the Operating section of this manual                           Carry out the system test to verify that the autopilot is operating                            correctly52 Automatic Compass Heading Alignment and Deviation Correction                          The displayed compass heading requires alignment with the ships                          compass Until this procedure is carried out the autopilot compass                          display will not agree with the ships compass                          The autopilot will correct the fluxgate compass for most deviating                          magnetic fields This correction procedure should be carried out in calm                          conditions preferably in flat water                          To select compass heading alignment and correction push and hold                          STANDBY for 2 seconds until the display shows                                ST7000                                    30                        30                                         20     RUDDER   20                                              10  0   10                                                                   Cal                                ST6000                                                                     Cal                                                              Cal                                                                            D10191                          1 Press DISPLAY                          2 Keeping boat speed below 2 knots turn the vessel slowly so that it                             takes at least 3 minutes to complete 360 degrees92                           TYPE 100300 Operation and Installation Handbook                                                D9191     Keep turning until the display changes to show the amount of deviation the     autopilot has corrected This can take up to 2 full turns depending on the     amount of deviation found          ST7000              30                        30                   20     RUDDER   20                        10  0   10                                             Cal          ST6000                                               Cal                                        Cal                                                      D1019a1     Note If the deviation exceeds 15 degrees you should relocate the     fluxgate compass     3 Steady the boat up on one heading and use the course change keys        to adjust the displayed heading until it agrees with the steering        compass or a known transit bearing     4 To exit fluxgate  and store the settings push and        hold STANDBY for 2 seconds until the pilot returns to STANDBY        mode     5 To exit fluxgate  without saving any new settings        push STANDBY  5 Initial Sea Trials                                                                     9353 Compass Alignment without deviation correction                          It is possible to change the alignment between the fluxgate and the ships                          compass without carrying out the automatic deviation correction Proceed                          as follows                          1 Push and hold STANDBY for 2 seconds to select fluxgate alignment                             correction mode                          2 Use the course change keys to adjust the heading displayed                          3 To exit fluxgate  and store the new setting push                             and hold STANDBY for 2 seconds until the pilot returns to STANDBY                             mode                          4 To exit fluxgate linearisation without saving the new setting push                             STANDBY momentarily54 First Sea Trials                          In clear waters steer the boat on to the required heading                          1 Hold the course steady for 5 to 10 seconds                          2 Press AUTO to lock onto the current heading In calm conditions a                             perfectly constant heading will be maintained                          3 Alter course to port and starboard using the course change keys on                             any control unit Course changes should be prompt and without any                             sign of overshooting                          4 Press STANDBY to disengage the autopilot for return to hand                             steering94                                       TYPE 100300 Operation and Installation Handbook55 Response Control                 There are three response levels to provide tighter than normal course                 keeping when there is restricted sea room Select each level in turn and                 observe the autopilot activity        Level 1  Automatic Sea State Control                  This provides the optimum compromize between power consumption                    and course keeping accuracy and is suitable for most situations                 The automatic sea state control can be observed during the sea trial                  When the autopilot is initially engaged in Auto mode it will respond to all                   pitch and roll movements                  During the first minute of operation it will be noticed that repetitive                   movements of the vessel are gradually neglected until finally the                   autopilot will respond only to true variations in course                  To ensure precise course adjustments the sea state control is automati                    cally reset whenever the course change knob is adjusted        Level 2  Automatic Sea State Inhibit                  Where increased course keeping accuracy is required the automatic                   sea state control can be inhibited by moving to response level 2                  Autopilot activity and therefore power consumption will be increased        Level 3  Automatic Sea State Inhibit and counter rudder                  Where maximum course keeping accuracy is required a Rate Gyro                   transducer should be fitted This introduces counter rudder rate to                   increase the natural damping of the vessel On power craft level 3 is                   useful at slow speed where the natural damping of the vessel is                   reduced Autopilot activity and therefore power consumption will be at a                   maximum                 The minimum response level necessary to achieve the desired course                 keeping should be used to reduce power consumption and autopilot wear                 and tearChapter 5 Initial Sea Trials                                                                        9556 Automatic Trim Control                          The autopilot automatically corrects for trim No adjustment of the pilot is                          necessary                          After each course change the automatic trim is cancelled and the autopilot                          will reestablish the correct trim for the new heading It should be noted                          that if a large course change is keyed ingreater than 60 degrees the                          autopilot will not assume the final selected course immediately The vessel                          will come to within say 10 degrees of the desired course and will only                          settle onto course when the automatic trim has been fully established This                          may take up to two minutes                          It is recommended the following procedure is adopted for large course                          changes                           Note required heading                           Select STANDBY and steer manually                           Bring vessel onto new heading                           Select AUTO and let vessel settle onto course                           Bring to final course with 1 degree course change increments                          It is sound seamanship to make major course changes only whilst steering                          manually In this way any obstructions or other vessels may be cleared                          properly and due account taken of the changed wind and sea conditions                          on the new heading prior to engaging the autopilot                          Note If the autopilot trim control is switched off regular checks on the                          vessels heading should be made as changes in standing helm will change                          the course steered by the autopilot96                                        TYPE 100300 Operation and Installation Handbook57 Rudder Gain Adjustment Displacement Craft                The factory set rudder gain level provides stable control for initial sea                trials However vessels can vary widely in their response to the helm and                further adjustment to the rudder gain may improve the autopilots steering                 Rudder gain should be set in Response level 1                An excessively high rudder control setting will result in oversteer which                can be recognized by the vessel swinging from side to side of the                automatic heading accompanied by excessive rudder movement In                addition distinct overshoot will be observed when the course is changed                This condition can be corrected by reducing the rudder setting                Similarly an insufficient rudder control setting results in understeer which                gives sluggish steering performance and is particularly apparent when                changing course This is corrected by increasing the rudder setting These                tendencies are most easily recognized in calm sea conditions where wave                action does not mask basic steering performance                Typically if at cruising speed a course change of 40 degrees results in an                overshoot of between 2  5 degrees the rudder gain is correctly adjusted                Push either RESPONSE key for access to Rudder Gain Adjust either side                of the calibrated setting to provide optimum autopilot steering                                           A             B                    Correct    Rudder          Rudder                    rudder     setting         setting                    setting    too high        too low                     New          New            New                     heading      heading        heading                                                         R17321                Note Once the optimum setting has been found the default calibration                setting for rudder gain should be changed        Adjustment with Response Level 3                Response level 3 by default automatically sets the gain to 3 settings                above the gain at response level 1 This can be adjusted as follows                Select response level 3 and then scroll to the gain display Adjust the                value as required and save the new value by pressing the up and down                response keys together  5 Initial Sea Trials                                                                        9758 Rudder Gain Adjustment High Speed Planning Craft                                                                                                        highspeed                          Adjust as follows                           Set to Rudder Gain for optimum steering performance at the vessels                             normal cruising speed                           Push either RESPONSE key for access to Rudder Gain Adjust either                             side of the calibrated setting to provide optimum autopilot steering59 Rudder Gain  Adjustment with Speed                          Due to the significant differences in dynamic stability between planing and                          nonplaning conditions most high speed craft require Rudder Gain                          adjustment when going from planing to displacement speeds or vice                          versa The required adjustment can be achieved automatically                          or manually                           When the autopilot is used with the speed input from an Autohelm                            SeaTalk Speed instrument or is receiving boat speed via its NMEA                            input Rudder gain is automatically adjusted with boat speed After                            setting the gain at planing speed no further manual adjustment should                            be required                          Warning When speed information is fed to the autopilot via the                          NMEA input always check the displayed speed is close to the                          actual boat speed before locking the autopilot onto a heading                          Delays in data transmission could result in the pilot applying too                          much rudder after a large change in vessel speed                           If no Speed input or NMEA is available manual adjustment should be                             carried out to the Rudder Gain setting via the Response keys adjusting                             as follows                          1 Speed decreases from planing to displacement                              Increase gain by 1 or 2 levels                          2 Speed increases from displacement to planing                              Decrease gain by 1 or 2 levels                          Warning The manual gain adjustment must be made after                          reducing from planing to displacement speed and before                          increasing from displacement to planing speed98                                     TYPE 100300 Operation and Installation Handbook510 Manual Override Stern Drive Actuators only                 Manual override should be selected in calibration only on installations                 fitted with the stern drive actuator When it has been selected the                 autopilot can be overridden to allow hand steering by turning the steering                 wheel This will return the autopilot to Standby and sound the control unit                 buzzer for 10 seconds There is a slight delay before the autopilot will                 return to Standby                 CAUTION Excessive force is not required and will not reduce this delay                 With the autopilot in Auto and clear of obstruction turn the steering wheel                 to observe the manual override Repeat two or three times until you are                 confident with its operation                 The manual override is intended for emergency use only The autopilot                 should normally be disengaged by pushing the STANDBY button on the                 control unitChapter 6 Track Control                                                                            99Chapter 6 Track Control                       Track control allows the autopilot to maintain track between waypoints                       entered on a GPS Decca or Loran Navigation System The navigation                       system must have a suitable autopilot NMEA output refer to section 213                       If the navigation system transmits the correct NMEA 0183 sentences the                       autopilot will receive and display bearing to waypoint distance to                       waypoint waypoint number and cross track error                       If it transmits NMEA 0180 only crosstrack error will be displayed                       Before attempting sea trials make sure that the control unit is receiving                       navigation data by using the Display key to bring it up on the control                       unit LCD                       Note If data is not being received it is impossible to select Track Mode100   TYPE 100300 Operation and Installation  7 Windvane Control                                                                 101Chapter 7 Windvane Control Sail Only                      Windvane control allows the autopilot to maintain an apparent wind angle                      There are two methods of supplying wind angle                      1 Using NMEA 0183 output from another manufacturers instrument                         system                      2 Using an Autohelm ST50 wind instrument connected using the                         SeaTalk bus                      The autopilot uses wind trim to eliminate the effects of turbulence and                      short term wind variations to provide smooth precise performance under                      windvane with minimum power consumption Wind trim uses the fluxgate                      compass as the primary heading reference and as changes in the                      apparent wind angle occur the compass heading is adjusted to maintain                      the original apparent wind angle102   TYPE100300 Operation and Installation HandbookIndex                                                                          103        A                                      Control Unit                                              Cabling 26        Adjusting calibration 83                  Mounting 25        Auto Adapt 87                          Course Computer        Auto Release manual override 89         Cabling 22        Automatic Compass Heading                 Mounting 22               Alignment and Deviation 91      Cruise Speed 85        Automatic Sea State Control 94         Current limit and cutout 78        Automatic Sea State Inhibit 94        Automatic Sea State Inhibit and        D               counter rudder 94        Automatic Trim Control 95              Display Contrast Adjustment        Auxiliary Alarm                              ST7000 only 90           Cabling 65                          Drive Option 86           Mounting 65                         Drive Systems 13                                                      Constant Running Hydraulic        C                                             Pump 16                                                      Hydraulic Linear 15        Calibration 81                                Linear Drive 15           Adjusting calibration 83                   Rotary Drive Units 13           Auto Adapt 87                              Reversing Hydraulic Pump 14           Auto Release 89                            Sterndrive 16           Cruise Speed 85           Display Contrast Adjustment 90      F           Drive Option 86           Joystick Mode 86                    First Sea Trials 93           Latitude 88                         Fluxgate Compass           Magnetic variation 87                   Cabling 29           Off Course Limit 85                     Mounting 28           Permanent Watch Alarm 90            Functional Test 76           Rate Level 84           Recommended settings 81                                               G           Recording Calibration Settings 90   GyroPlus Offset and Drift Compen           Response Level 88                        sation 80           Rudder Deadband 87           Rudder Gain 83                      H           Rudder Limit 84           Rudder Offset 84                    Handheld Remote 17           Saving Calibration 89               Hydraulic Drive Systems 35                                               Hydraulic Linear Actuator 45           Selecting calibration 82                                                 Cabling 48           Trim Level 86                                                 Final Preparation before use 48           Turn rate 85                                                 Installation 45           Wind Trim 88        Compass Alignment without              deviation correction 93        Constant Running Hydraulic Pump           Cabling 42           Mounting 41           Plumbing 44104                             TYPE100300 Operation and Installation Handbook      I                                              NMEA Interface 73                                                     Rotary Rudder Reference 30      Initial Sea Trials 91                              Mounting 30      Installation                                       Cabling 32           Auxiliary Alarm 65                    Introduction           Course computer 21                        Auxiliary Alarm 18               Mounting 22                           Course Computer 11               Cabling 22                            Drive Systems 13           Control Unit ST60007000 25                   Constant Running Hydraulic               Mounting 25                               Pump 16               Cabling 26                                Hydraulic Linear 15           Control Unit ST60007000 NMEA                 Linear Drive               Input 71                                  Reversing Hydraulic Pump 14           Fluxgate Compass 28                           Rotary Drive Units 13               Mounting 28                               Stern Drive 16               Cabling 29                            Fluxgate Compass 11           Hydraulic Drive Systems 34                GyroPlus Transducer 20               Constant Running Pump 41              Handheld Remote 17                   Mounting 41                       Joystick 18                   Cabling 42                        Linear Rudder Reference                   Plumbing 44                           Transducer 12               Reversing Hydraulic Pumps 35          NMEA Interface 17                   Mounting 35                       Rotary Rudder Reference                   Cabling 35                            Transducer 12                   Plumbing 37                       ST6000 Control Unit 10                   Two line system 39                ST7000 Control Unit 10                   Two line pressurised 39           Type CR Interface 12                   Three line system 40              Wind Transducer 19                   Bleeding the system 40           Interfacing to other manufacturers   J               equipment 69                                                 Joystick           Joystick 66                                                    Cabling 66           Linear Feedback Transducer 33                                                    Mounting 66               Mounting 33                                                 Joystick Mode Manual Type 86               Cabling 34           Masthead Transducer 67                L                   Mounting 67                   Cabling 68                    Latitude 88           Mechanical Drive Systems 49           Linear Drive Unit               Linear Drive Unit 53                 Cabling 55                   Mounting 54                      Mounting 54                   Cabling 55                    Linear Feedback Transducer               Rotary Drive Unit 49                 Cabling 34                   Mounting 49                      Mounting 33                   Cabling 52               Sterndrive Actuator 56            M                   Mounting 56                                                 Magnetic Variation 87                   Cabling 64                                                 Manual Override Stern Drive                                                      Actuators only 98                                                 Masthead Transducer 67Index                                        105        S        Saving Calibration Mode 89        Selecting calibration 82        Setting the Autopilot Rudder Limit              All drives 79        Sterndrive Actuator           Cabling 64           Mounting 56        Switchon 76        System test 76        T        Track Control 99        Trim Level 86        Turn Rate 85        W        Wind Transducer           Cabling 68           Mounting 67        Wind Trim 88        Windvane Control Sail Only 101106                         TYPE100300 Operation and Installation Handbook      Mechanical Drive Systems 49           Linear Drive Unit 53           Rotary Drive Unit 49           Sterndrive Actuator 56      Mechanical test Linear Rotary           Hydraulic Drives 78      Mechanical Test Stern Drive 79      N      NMEA Interface        Cabling 74      O      Off Course Limit 85      Operating sense 78      P      Permanent Watch Alarm SFIA 90      Planning the Installation 21      Pump to Cylinder Specifica           tions 35      R      Rate Level 84      Recording Calibration Settings 90      Response Control 94      Response Level 88      Reversing Hydraulic Pump 14      Rotary Drive Unit         Cabling 52         Mounting 49      Rotary Rudder Reference Trans            ducer         Cabling 32         Mounting 30      Rudder angle alignment 77      Rudder angle sense 78      Rudder deadband 78      Rudder Deadband Rudder            Damping 87      Rudder Gain 83      Rudder Gain  Adjustment with            Speed 97      Rudder Gain Adjustment Displace            ment Craft 96      Rudder Gain Adjustment High            Speed Planning Craft 97      Rudder Limit 84      Rudder Offset Helm Adjust 84                                                                    810043Nautech Limited Anchorage Park Portsmouth             P03 5TD  0705 693611 Fax 0705 694642

Ad by Google

Cookie Policy:
This webiste uses cookies to save your settings. No personal information is saved. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser.
Privacy Policy:
I do not sell or share any user data or anything else for that matter. I do not keep site logs longer than I need to to keep bad actors off the site. Basically, I delete them after looking at them. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines anyway.
Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.