2.1 L Hydraulic Pump Installation Instructions 3
notice
The following is a general procedure for bleeding a hydraulic steering
system. Refer to the instructions provided by the manufacturer of
the steering system for more-specic information about bleeding the
system.
Before you bleed the hydraulic system, ensure that all hose connections
are complete and fully tightened. The pump has a bypass valve to allow
air to be bled from the system.
1. Complete an action:
• If the helm reservoir contains insufcient uid, ll it with the
appropriate amount of hydraulic uid.
• If the helm reservoir contains excess uid, remove the excess to
avoid uid overow during the bleeding process.
2. Manually steer the helm to both cylinder stops.
3. Manually steer the helm fully to port.
4. Open a bypass valve at the cylinder tting.
5. Turn the helm slowly to port for three minutes.
6. Close the cylinder bypass valve.
7. Add uid to the helm reservoir if necessary.
8. Repeat steps 2 through 7 until the helm reservoir remains full.
9. Open the bypass valve on the pump manifold.
10. Turn on the autopilot system and disable the Shadow Drive.
11. Hold on the GHC 10 for 10 seconds and watch for
steering movement.
12. Select an option:
• If there is steering movement, proceed to step 13.
• If there is no movement, hold until steering movement
occurs.
13. Hold the soft key that produces steering movement and steer fully to
the stop.
14. Steer the helm to the opposite stop using the GHC 10.
15. Close the bypass valve on the pump manifold.
16. When hydraulic bleeding is complete, re-enable the Shadow Drive.
notice
To ensure long life of all parts, apply corrosion blocker to the pump at
least twice yearly.
After the pump installation is complete and all hydraulic connections
and electrical connections are made, apply a marine-rated corrosion
blocker to the pump.
If the boat has an unbalanced cylinder steering system, you must
congure the pump to work properly with the steering system.
notice
Keep all parts clean and free of dust and debris while conguring the
pump for an unbalanced-cylinder steering system.
If you remove the check valves after bleeding the hydraulic system, you
must bleed it again.
1. Remove the check valves
➊
from the pump manifold.
2. Pull the pistons
➋
out of the pump manifold.
The pump is congured from the factory with the pistons in the
balanced conguration
➌
.
3. Re-insert the pistons into the pump manifold in the unbalanced
conguration
➍
.
4. Insert and tighten the check valves into the pump manifold.
➌
➍
➊
➋