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Manifolds and Hydraulic Pumps Section 5 – Procedures
5.8-2 Hydraulic Standby Pressure
Adjustment
1. Locate the GP1 port
1
on the front of the main
manifold and remove the cap.
1
2. Connect a pressure gauge (41 bar / 600 psi) to
the GP1 port.
3. Start the engine from the base control console
and let it run for 2-5 minutes.
4. Check the reading on the gauge (standard
pressure should be 23 bar / 330 psi) and follow
the next steps for adjusting the pressure, if
needed.
5. Locate the load sense compensator
2
on the
system pump.
2
6. Loosen the lock nut.
7. Adjust the load sensing pressure by turning
the adjusting stem either clockwise to increase
pressure or counterclockwise to decrease
pressure.
8. Tighten the lock nut after the pressure is set to
23 bar (330 psi).
9. Turn the engine off.
10. Remove the pressure gauge from the GP1 port
and cap the port.
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