Troubleshooting
71
Working hydraulics
Malfunction
Cause
Remedy
1. Lifting capacity / operating
pressure too low.
Oil level in the hydraulic tank too
low.
Replenish hydraulic oil.
Pressure control valve has
triggered.
Seek out a specialist repair shop.
2. Lifting capacity too slow.
Filter cartridge of the hydraulic oil
filter contaminated.
Replace hydraulic filter.
3. Air bubbles in the hydraulic oil.
Wrong quality of hydraulic oil.
Change the hydraulic oil and fill
with required hydraulic oil.
Oil level in the hydraulic tank too
low.
Replenish hydraulic oil.
4. Cylinders move jerkily.
Oil level in the hydraulic tank too
low.
Replenish hydraulic oil.
5. Cylinders move jerkily.
Oil level in the hydraulic tank too
low.
Replenish hydraulic oil.
6. Operating levers of the
working hydraulics not
functioning.
Driver not seated on the seat.
The driver must be seated on the
seat.
Fuse defective.
Replace fuse.
Seat switch defective.
Seek out a specialist repair shop.
Hydraulic manifold defective.
Seek out a specialist repair shop.
Foot contact switch defective.
Seek out a specialist repair shop.