Autohelm Inboard Autopilots (ST6000 and ST7000 systems) Service ...

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AutohelmContentsPage1. Description 32. Disassembly 33. Reassembly 34 Functional Test 55. Product History 106. Software History 107. Spares Numbers 10IllustrationsFig. 1 . General Assembly 42SeaTalk Service Manual
Autohelm1. DescriptionThe ST6000 course computer is SeaTalk compatible and consists of a single PCBcontaining both the course computer and power amplifier circuitry. It is built usingsurface mount technology and available for 12v operation only.Note: If the course computer or its PCB are replaced, calibration values previouslyaltered from the factory settings will require resetting. Also the Fluxgate Compass willrequire re-linearising (auto deviation correction). Both of these procedures areoutlined in the ST6000 system section.It is essential the cable used for the single DC supply is of adequate gauge otherwisethe system may reset back to standby mode when the drive motor operates.The table below gives a guide to cable size required. The length quoted is the totalcable length from the main distribution panel to the course computer, plus the lengthfrom the course computer to the drive unit.Drive Unit and Power Supply Cable SizeCable length Cable type Copper area Cable gaugeup to 7m 50/0.25 2.5mm 2 12 awgup to 10m 56/0.3 4.0mm 2 10 awgup to 16m 54/0.3 6.0mm 2 8 awg2. Disassembly1. Unscrew and remove the 2 countersunk screws securing lid on terminal boxsection and lift off lid.2. Unscrew and remove the 2 thumb nuts securing extrusion assembly to terminalbox unit and pull extrusion assembly away from terminal box.3. Unscrew and remove the 8 pan head screws securing both the connector coverand extrusion end cap mouldings.4. Remove the two heatsink location screws (ensure associated nuts and washersare recovered).5. Carefully withdraw the PCB assembly.3. Re-assemblyIn all cases re-assembly is a reversal of the dismantling procedure but note thefollowing:-Apply a small amount of loctite 270 (or equivalent) to the threads of the two heatsinklocation screws after they have been installed.SeaTalk Service Manual 3
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AutohelmAutohelm Inboard Autopilots
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AutohelmST7000 SystemMaster Table o
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AutohelmST7000 System IndexPage1. I
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Autohelm3. Operating/Calibration in
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AutohelmDisplay Key SequenceWatch A
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AutohelmUnsatisfactory Steering Per
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AutohelmWind Change AlarmWind Trim
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AutohelmAdjusting CalibrationIn cal
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Autohelm3. 5 Automatic Deviation Co
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Autohelm5. Track Control interfacin
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Autohelm6. Special functions.6.1 Di
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Autohelm7.1 Service Visit - Diagnos
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AutohelmContentsPage1. Description
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Autohelm5. When finally refitting t
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AutohelmLCD Display Assembly6SeaTal
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Autohelm8SeaTalk Service Manual
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Autohelm1. Control Unit PCB Circuit
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ST7000 Course Computer General Asse
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Autohelm4. Functional TestThe Cours
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AutohelmSeaTalk Service Manual 9
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Autohelm4.3 Course Computer Bench T
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Autohelm2. Technical InformationCon
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Autohelm1.4. Clutch DriveTR10, 11 a
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AutohelmFig. 1. ST7000 (Z083 and Z0
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Page 88 and 89: Autohelm3.2 Additional information
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Page 92 and 93: Autohelm• If the autopilot fails
Page 94 and 95: Autohelm3.4.1 Adjusting Calibration
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Page 98 and 99: Autohelmmessage indicates the ST600
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Page 106 and 107: Autohelm5. Pull the loom assemblies
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Page 122 and 123: AutohelmCourse Computers (Z083, Z08
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Page 144 and 145: Autohelm1. Type CR Interface Box PC
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AutohelmFig. 1. Rudder Reference Un
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Autohelm3. Product History Rudder R
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Autohelm4. Product History (Z080 Ma
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AutohelmZ050 Mount Assembly6SeaTalk
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AutohelmContentsPage1. Linear Drive
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AutohelmSlide off the carrier assem
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Autohelm* No load current limits :-
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Autohelm7. Product History Type 2 L
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AutohelmContentsPage1. Rotary Drive
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Autohelmb) When rebuilding the clut
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AutohelmContentsPage1. Hydraulic Dr
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Autohelmc) If the relief valve asse
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Autohelm3. Reversing Gear Pumps (Z0
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Autohelm4. Type'0'Piston Pump (Z081
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AutohelmContentsPage1. I/O Drive Un
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Autohelm4. Spares numbers - I/O Ste
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Autohelm- Position the support plat
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