Compact 2.1 L Pump Hydraulic Layout on Dual-Helm Boats

Balanced cylinder

Starboard fitting

Port fitting

 

 

 

Upper helm

 

 

 

Lower helm

line

line

line

P R S

 

Starboard

Return

Port

P R S

 

 

 

Compact 2.1 L pump (and motor)

 

 

Port line

 

 

 

 

 

 

 

 

Starboard line

Shadow Drive

 

 

 

 

Return line

 

 

Notes:

Compact 2.1 L pump (and motor):

To use the compact 2.1 L pump on a system with an unbalanced cylinder, follow the procedures on page 24.

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

13