Garmin 190-01166-02 User Manual

1.  Consult the hydraulic layout diagrams starting on 

2.  Prepare to disconnect the hydraulic lines in your boat as specified by the manufacturer of your boat or steering system.
3.  Disconnect the hydraulic lines from the steering system where appropriate.
4.  Add additional hose where necessary, and add the included t-connectors in the hydraulic lines.
5.  Add hydraulic hose from the t-connectors to the pump, using the included fittings to attach the hose to the pump.
6.  Add hydraulic hose from the return connector at the back of the helm to the pump, using the included fittings.
7.  Connect the hoses to the upper fittings, the lower fittings, or a combination of both fittings on the pump. Do not connect more than 

three hoses to the pump (port, starboard, and return).

8.  Insert, tighten, and seal the included plugs in the three unused pump fittings.
9.  You will eventually need to bleed the hydraulic system, but not until the Shadow Drive is installed. See 

 for more 

information.

note: The pump may vibrate the hydraulic lines and cause noise when the autopilot is running. To eliminate the noise, tie the 

hydraulic lines to a solid surface.

The 2.0 L and the 1.2 L pumps feature a shutoff valve for troubleshooting and repairing the system. To engage the shutoff valve and 

isolate the pump from the hydraulic system, fully tighten the three brass screws near the lower hydraulic connectors. To disengage the 

shutoff valve, loosen the three brass screws until they stop.

Do not force the three brass screws past the stopping point when disengaging the shutoff valve. Forcing the screws past the stopping 

point may permanently damage the manifold.