Hydraulic Troubleshooting
PS
M6.0
6000
F-code
Section
C-code
Version no
T-code
001
OE35
© BT Products
247
Service Manual
1997-10-23
3. Lowering solenoids stuck open, one or both.
Replace lowering solenoids.
4. Relief pressure too low.
Check pressure relief setting.
Rated weight capacity plus 10 percent.
5. Overloaded truck.
Reduce load to capacity.
6. Mechanical binding or failure in mast.
Repair mast.
7. No oil flow or pressure from pump.
Check flow from pump.
Check supply oil to pump, hoses, and strainer.
Check pump to motor coupling.
Check internal pump parts.
B. No high speed lift
Low speed lift okay but lift speed does not increase as
lift button is pressed to high speed position.
1. Solenoid valve not closing/opening.
Verify correct electrical operation; replace solenoid
valve.
2. Internal damage in pump.
Repair or replace pump.
C. No low speed lift
Pump motor runs, high speed lift appears okay.
1. Check lift solenoid valve.
Repair or replace solenoid valves.
2. Check adjustable restrictor.
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