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18
19
Fig 23
To pump &
Cylinder
To Helm
(Close up view)
Compass
Ball
Shadow Drive
# 4
Red
Black
Brown
Green
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.
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 ttings at the back of the helm, it will damage the helm. Be sure to install a length of
hose between the tting at the helm and the Shadow Drive valve.
Do Not Install the Shadow Drive in the return or compensating line.
Do Not use te on tape on hydraulic ttings. 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.
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-
20 for instructions on blue connectors. (Page
20).The wires can be extended using 18-22
gauge wire.
Pump &
Motor
Shadow Drive
Upper Helm
Lower Helm
P= Port
R= Return
S= Starboard
HELM
P
R
S
HELM
P
R
S
BALANCED CYLINDER
Port Fitting
Starboard Fitting