Garmin TR-1 manual Installation Of Shadow Drive Valve Dual Helm Station, Close up view

Installation Of Shadow Drive Valve (Dual Helm Station)

Shadow Drive Valve/Sensor: The Shadow Drive is an electronic bi-directional valve. Install it as shown in the system layout. Install it horizontally, as level as possible. In a dual helm, the shadow drive valve must be located behind and closest to the lower helm, and closer to the helm than the pump. Avoid any loops in the hydraulic lines, air may get trapped and cause the autopilot not to work properly. Air can and will get trapped in the valve during installation and bleeding. It’s very important to get all the air out of the Hydraulic Lines, Helms, Pump, Cylinder(s) and The Shadow Drive valve.

Do Not mount the Shadow Drive Valve within 12” of any magnetic interference such as speakers or pump motors.

Do Not Install valve directly to the fittings at the back of the helm, it will damage the helm. Be sure to install a length of hose between the fitting at the helm and the Shadow Drive valve.

Do Not Install the Shadow Drive in the return or compensating line.

Do Not use teflon tape on hydraulic fittings. However, for a leak free hydraulic system, we do advise you to use an appropriate thread sealant such as, Loctite “Pro Lock” multipurpose anacrobic gel, part number 51604, or equivalent on all pipe threads.

Helm	HELM
Upper

CYLINDER Port Fitting

BALANCED

S

R

P

P= Port

R= Return

S= Starboard

Helm	HELM	S
Lower		RP

	��
Pump &
Motor	��
	��
	��

Shadow Drive

Compass

Ball

Shadow Drive	Red	Brown
	Black	Green	# 4

Electrical Connections:

Connect the red and black wires from the Shadow Drive Valve to the Brown and Green wires located at the Compass Ball. See page

8.Use the blue connectors in the accessory pack to make those connections. See Fig 18-

20for instructions on blue connectors. (Page

20).The wires can be extended using 18-22 gauge wire.

Starboard Fitting

	(Close up view)
To pump &	To Helm
Cylinder

Fig 23

The shadow drive valve must be mounted in a level horizontal position using the cable ties

&mounts with screws included in installation pack See Fig. 23.

19