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GHP 10 Marine Autopilot System Installation Instructions
SeaStar Power Assist-Enabled Boats
Balanced cylinder
Port fitting
Starboard fitting
.1 L pump (and motor)
Port line
Return line
Starboard line
Shadow Drive
Helm
S
R
P
Sea Star
Power Assist
module
H1
H
C
C1
Return line
notes:
Power Assist module:
It may be necessary to remove the Power Assist
module to gain access to the fittings, the hoses,
and the bleed-tee fitting.
You may need to add a tee fitting in the return
line at the Power Assist module to connect the
pump.
Legacy 2.1 L pump (and motor):
Install the pump to the steering lines between the
cylinder and the Power Assist module.
Do not install the pump to the steering lines
between the helm and the Power Assist
module.
Do not use the 2.1 L pump on a system with
an unbalanced cylinder.
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 helm and
the Power Assist module.
Do not install the Shadow Drive directly to
the helm.
Do not install the Shadow Drive between the
Power Assist module and the pump.
Do not install the Shadow Drive between the
Power Assist module and the cylinder.
Notice
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
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