1. Check whether the lifting platform is supplied with power or whether the main switch is on.
2. Make sure that no emergency stop is pressed.
3. Check, if available, whether the light barrier is not actuated.

Please check the oil level and top up oil if necessary.

1. 1. Check whether the lifting platform is supplied with power or whether the main switch is on

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1. If necessary, the latch mechanism does not retract and release the lowering valve. (NFZ)

A lowering valve coil is defective and must be replaced.

1. The head piece does not move down completely because there is something underneath.
2. The non-contact switch on the hydraulic cylinder is defective.

1. The slipping clutch of the traverse motor must be readjusted.
2. The traverse motor is defective.
3. One or both traversing chains are torn off.

Since 1980, an HLPD 68 has been used as standard.

Please tell us the type of the lift, the year of manufacture and the factory number of the model it is.

The regular maintenance intervals are based on the actual operating hours. This means that a compressor that does not reach the operating hours within 12 months still requires service, as various wear parts and FIlters are subject to an aging process. It is recommended to keep the specified maintenance intervals – minimum interval 1x per year.

Please check the direction of motor rotation, the compressor is probably rotating in the wrong direction and therefore cannot build up oil pressure.

The oil is usually changed in connection with regular maintenance. Depending on the installation and intake conditions, the oil change intervals may also differ.

In principle, a compressor oil approved by the manufacturer must be used. Depending on the use of the system, synthetic oils can also be used in addition to mineral oils.

Please tell us the type, serial number and year of manufacture. The data can be found on the type plate on the crankcase.

Each compressor and compressor unit has its own characteristics and special requirements. You can conclude an agreement for each of these requirements. Thus, they ensure that low operating costs and high operational reliability are guaranteed.

The service life of a compressor is primarily based on the operating hours and not necessarily on the year of manufacture. Thus, it is not necessarily possible to quantify a service life. Due to technical progress, it must be checked whether an added value can be created by replacement. This can also be done, for example, by modifying existing compressors, including the replacement of improved electric motors.