probst UMG-60/150 Instructions D'emploi page 38

Operation
1)
Otherwise there may be faulty switching and when setting down the load this can cause deformation or
damage of the automatic release!
The jerky lifting and lowering of the device with and without load. e.g. caused through driving fast with the
lifting equipment/carrier over uneven grounds is forbidden
When replacing a defective automatic release, it is
essential to ensure that the slots of the two
clamping pins always point downwards.
The position of the slots must not be above or
center, otherwise there is a risk that the
automatic release may jam when switching!
57200050 14 / 18 GB