266
229042ABA SJ46 AJ+, SJ46 AJ, SJ51 AJ
Section 5 – Procedures Manifold and Hydraulic Pumps
5.9-8 Test Reverse Drive Pressure on
Drive Pump
NOTE
Make sure the charge pump pressure test is
completed first.
1. Locate test port TP2
1
on the drive pump.
2. Connect a pressure gauge (690 bar / 10 000 psi)
to test port TP2.
WARNING
To protect the gauge, do not activate any controls
during this procedure.
3. Start the engine from the platform control
console.
4. Unplug the brake solenoid power cable (26) on
the brake valve.
5. Activate the drive function slowly in reverse with
the engine at high speed. The wheels should not
turn.
NOTE
Activating the drive function too quickly will stall
the engine.
6. Check the reading on the gauge. The standard
pressure should be 345 bar (5000 psi).
7. Replace the pump if the pressure is not
achieved.
8. Turn the engine off.
1
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