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6 GHP 10 Marine Autopilot System Installation Instructions
Dual-Helm Boats
Balanced cylinder
Port tting
Starboard tting
2.0 L/1.2 L pump
(and motor)
Port line
Return line
Starboard line
Shadow drive
Upper helm
P R S
P R S
Lower helm
Notes:
2.0 L/1.2 L pump (and motor):
An unbalanced cylinder requires an unbalanced valve on the pump (See page 30)
Mount the pump horizontally if possible. Do not mount the pump vertically with the pump end (hydraulic connections) down.
Shadow Drive
Mount the Shadow Drive horizontally and as level as possible.
Install the Shadow Drive in either the port or the starboard hydraulic steering line.
Always install a length of hose between the helm and the Shadow Drive.
Install the Shadow Drive between the pump and both helms.
Do not install the Shadow Drive directly to the helm.
Do not install the Shadow Drive between the pump and the cylinder.
Do not install the Shadow Drive between the two helms.
CAUTION: Do not turn the system on until you bleed all the air from the helm, the Shadow Drive, the pump, and all the hydraulic lines.
See page 24.
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