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HIW / HTF-02 series
any kind of reproduction, even in parts, is not permitted.
UK
Possible problems and solutions
Note: Repair work must be performed only by trained service technicians that are qualified for this
work.
No
.
Problem
Possible cause
Possible solution
1
Hydraulic pump does not work
- Defect fuse
- Loose cable connections
- Motor defective
- Switch for lifting is defective
- Power cable is not connected
- Emergency stop button pressed
- Safety edge triggered
- Replace fuses
- Connect cables
- Replace motor
- Replace switch
- Connect power cable
- Release emergency stop
button
- Carry out a short lifting
operation to release security
lock
2
Tabletop no longer lifts up
(motor is running)
- No / too little hydraulic oil in the
equipment
- Dirty oil in the equipment
- Load too heavy
- Lowering valve no longer closes
- Hydraulic pump does not work
- Reversed phase of mains voltage
- Refill oil
- Change oil
- Check weight of the load
- Clean/replace
- Check pump
- Test phase scheme of the
socket
3
Motor not running
- Voltage too low
- Loose cable connection
- Recharge equipment
- Tighten cables
4
Tabletop can not be lowered
- defective cable / motor / contacts
- Lowering valve set incorrectly
- Replace defective parts
- Replace / adjust valve
5
Oil - leakage
- Seals hardened / perished
- Hydraulic oil level too high
- Replace seals
- Drain hydraulic oil
6
Tabletop lowers independently
- Oil pollution in the valve
- Seals defective
- Lowering valve defective
- Leak in pressure valve / pump
- Change oil
- Replace seals
- Replace valve
- Replace parts
Table 2 Troubleshooting
Hydraulic oil
Standard quality oil should be used between +5 and +40 °C, and special low temperature oil at an ambient
temperature between -35 to +5 °C.
Name
Trade name, code
Recommendation
HanseLifter
Quantity
L-HM32
Liftol HYSTAR 32
Hydraulic oil
L-HV32
Liftol HYCOLD 32
in very cold environment
Ca4-5ll
Table 3 Hydraulic oil
