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Section 5 – Procedures Manifolds and Hydraulic Pumps
5.8-3 Hydraulic High Pressure
Adjustment
1. Locate GP2 port
1
on the main manifold and
remove the cap.
Main Manifold and Pressure Gauge
2. Connect a pressure gauge (5000 psi) to the GP2
port.
WARNING
To protect the gauge, do not activate any controls
during this procedure.
3. Start the engine from the base control console
and let it run for 2-5 minutes.
4. Without driving, steer fully to one direction and
then check the reading on the gauge. Standard
pressure should be 3050 psi. Follow the next
steps for adjusting the pressure, if needed.
5. Locate the pressure compensator
2
on the
system pump.
6. Loosen the lock nut.
7. Adjust the system pump pressure by turning
the adjusting stem either clockwise to increase
pressure or counterclockwise to decrease
pressure.
8. Tighten the lock nut after pressure is set to 3050
psi.
9. Turn the engine off.
10. Remove the pressure gauge from the GP2 port
and cap the port.
2
1
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