Troubleshooting
70
Traction drive
Malfunction
Cause
Remedy
1. The machine does not move.
Holding brake lever in the
incorrect position.
Move the lever.
Accelerator pedal blocked.
Remove object in the area of the
pedal.
Accelerator not functioning.
Seek out a specialist repair shop.
Oil level in the hydraulic tank too
low.
Replenish hydraulic oil.
2. Machine only moves slowly
and does not produce full
power.
Hydraulic motor of the drive gears
defective.
Seek out a specialist repair shop.
Hydraulic pump defective.
Seek out a specialist repair shop.
Control valve defective.
Seek out a specialist repair shop.
Hydraulic filter contaminated.
Replace hydraulic filter.
Control valve set incorrectly.
Adjust the control valve setting.
Accelerator pedal blocked.
Remove object in the area of the
pedal.
3. The machine moves jerkily.
Oil level in the hydraulic tank too
low.
Replenish hydraulic oil.
Hydraulic malfunction.
Seek out a specialist repair shop.
4. Hydraulic oil overheated.
Operating time too long.
Turn off the machine and allow
the hydraulic oil to cool down.
Hydraulic filter contaminated.
Replace hydraulic filter.
Oil level in the hydraulic tank too
high or too low.
Correct the oil level in the
hydraulic tank or seek out a
specialist repair shop.
5. Abnormal noises.
Oil level in the hydraulic tank too
low.
Replenish hydraulic oil.