AutohelmAutohelmAutohelmAutohelmSeaTalk Service Manual 31. IntroductionThe ST7000 system section of this manual contains full system operating instructionsand service procedures for the installed autopilot. Further indepth diagnostics areavailable for each module in the relevant product sections.2. System DescriptionThe ST7000 is a modular autopilot system that can be built up to match the individualrequirements of all vessels. A range of high efficiency Rotary, Linear,Inboard/Outboard and Hydraulic drive units are available to match all types ofsteering systems.The ST7000 is SeaTalk compatible providing full data sharing with the Autohelmrange of SeaTalk Instruments.Early systems (pre March 90) were supplied with Z060, Z105 Rudder Reference andFluxgate transducers. Later systems use the Z131 and Z130 transducers.The ST7000 course computer can be used with all Seatalk compatible control unitsand will operate all of the following drive units:Z039 Linear Drive Type 1Z037 Rotary Drive Type 1Z041 Hydraulic Pump Type 1Z081 Hydraulic Pump Type 0Z088 I/O SterndriveZ029 Linear Drive Type 2 (1 2v)Z058 Linear Drive Type 2 (12v) Short StrokeZ032 Linear Drive Type 2 (24v)Z059 Linear Drive Type 2 (24v) Short StrokeZ028 Rotary Drive Type 2 (12v)Z031 Rotary Drive Type 2 (24v)Z030 Hydraulic Pump Type 2 (1 2v)Z033 Hydraulic Pump Type 2 (24v)Z064 Type CR 3L/min (1 2v) via Z085 Interface BoxZ065 Type CR 3L/min (24v) via Z085 Interface BoxZ066 Type CR 4.5L/min (12v) via Z085 Interface BoxZ067 Type CR 4.5L/min (24v) via Z085 Interface Box