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Section 5 – Procedures
5.8-9 Test Forward Drive Pressure on
Drive Pump
NOTE
Make sure the charge pump pressure test is
completed first.
1. Locate test port TP1
2. Connect a pressure gauge (10000 psi) to test
port TP1.
Drive Pump - TP1
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 forward 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 5000 psi.
7. Replace the pump if the pressure is not
achieved.
8. Turn the engine off.
9. Remove the pressure gauge from the port, cap
the port, and re-plug the brake solenoid power
cable.
229040ABA
250
on the drive pump.
1
1
5.8-10 Test Reverse Drive Pressure on
Drive Pump
NOTE
Make sure the charge pump pressure test is
completed first.
1. Locate test port TP2
Drive Pump - TP2
Connect a pressure gauge (10000 psi) to test port
TP2.
WARNING
To protect the gauge, do not activate any controls
during this procedure.
2. Start the engine from the platform control
console.
3. Unplug the brake solenoid power cable (26) on
the brake valve.
4. 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.
5. Check the reading on the gauge. The standard
pressure should be 5000 psi.
6. Replace the pump if the pressure is not
achieved.
7. Turn the engine off.
Manifolds and Hydraulic Pumps
on the drive pump.
2
2
SJ82 T, SJ86 T
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