Return line
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S R P 
S R P 
Lower helm | Legacy 2.1 L |
| pump (and motor) |
Upper helm
Port fitting | Starboard fitting |
Balanced cylinder
Notes:
•Legacy 2.1 L pump (and motor):
◦Do not use the legacy 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 line.
◦Always install a length of hose between the helm and the Shadow Drive.
◦Install the Shadow Drive between the pump and the helm.
◦Do not install the Shadow Drive directly to the helm.
◦Do not install the Shadow Drive between the pump 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 page 34.
GHP 10 Marine Autopilot System Installation Instructions | 17 |