Garmin 1.2 用户手册

Before you mount the pump, if your boat has an unbalanced cylinder 

steering system, you must install the optional unbalanced valve kit  

1.  After you select a mounting location, determine the mounting 

hardware needed for the surface.
Mounting hardware is included with the pump, but it may not be 

suitable for the mounting surface.

2.  If necessary, purchase the mounting hardware.
3.  Hold the pump in the intended mounting location and mark the 

locations of the mounting holes on the mounting surface, using the 

pump as a template.

4.  Using a drill bit appropriate for the mounting surface and selected 

mounting hardware, drill the four holes through the mounting 

surface.

5.  Secure the pump to the mounting surface using the selected 

mounting hardware.

Do not attempt to use the autopilot to steer the boat until you bleed all 

When adding hydraulic line to the system, use only hose with machine-

crimped or field-replacable fittings that have a minimum rating of  

1000 lbf/in

2

.

Do not use plumber’s tape on any hydraulic fitting. Use an appropriate 

thread sealant rated for marine use on all pipe threads in the hydraulic 

system.
Before you connect the pump to the hydraulic lines, consult one of these 

diagrams to find the correct place to add the pump and fittings to the 

hydraulic system. 
•  Single helm without power assist (

•  Dual helm without power assist (

•  Single helm with power assist (

)

The pump has two sets of hose-connector fittings to allow for different 

hose configurations. You can use either set of fittings or a combination 

of the two. Where necessary, add hydraulic hose.

1.  Disconnect the necessary lines from the hydraulic system.
2.  Add the t-connector to the starboard line.
3.  Connect the starboard line t-connector to the starboard fitting of the 

pump.

4.  Add the t-connector to the port line.
5.  Connect the port line t-connector to the port fitting of the pump.
6.  Install the Shadow Drive to the port or starboard line between the 

helm and the t-connector. 
See the installation instructions provided with your Garmin autopilot 

for Shadow Drive installation instructions.

7.  Connect the return line from the helm to the return fitting of the 

pump.

8.  Insert, tighten, and seal the plugs in the unused pump fittings.

1.  Disconnect the necessary lines from the hydraulic system.
2.  Add the t-connector to the starboard line between the helm 

t-connector and the steering cylinder.

3.  Connect the starboard line t-connector to the starboard fitting of the 

pump.

4.  Add the t-connector to the port line between the helm t-connector 

and the steering cylinder.

5.  Connect the port line t-connector to the port fitting of the pump.
6.  Install the Shadow Drive to the port or starboard line between the 

helm t-connector and the pump t-connector. 
See the installation instructions provided with your Garmin autopilot 

for Shadow Drive installation instructions.

7.  Connect the return line from the helm t-connector to the return fitting 

of the pump.

8.  Insert, tighten, and seal the plugs in the unused pump fittings.

1.  Disconnect the necessary lines from the hydraulic system.
2.  Add the t-connector to the starboard line between the power assist 

module and the steering cylinder.

3.  Connect the starboard line t-connector to the starboard fitting of the 

pump.

4.  Add the t-connector to the port line between the power assist module 

and the steering cylinder.

5.  Connect the port line t-connector to the port fitting of the pump.
6.  Install the Shadow Drive to the port or starboard line between the 

helm and the power assist module. 
See the installation instructions provided with your Garmin autopilot 

for Shadow Drive installation instructions.

7.  Remove the bleed-tee fitting from the return line of the power assist 

module.

8.  Install the bleed-tee fitting on the return fitting of the pump.
9.  Add the t-connector to the return line between the power assist 

module and the helm.

10. Connect the return line t-connector to the return fitting of the pump.
11. Insert, tighten, and seal the plugs in the unused pump fittings.
Connecting the Pump to the ECu

Before you connect the pump to the ECU, you must mount the pump  

) and ECU. 

See the installation instructions provided with your Garmin autopilot for 

ECU installation instructions.

Connect the two cables from the pump to the ports on ECU marked 

DRIVE and FEEDBACK. 
The ports are keyed to the fittings on the cables.