Operating instruction and documentation
UNI-LIFT 6500 - 8000
UNI LIFT 6500 - 8000
- 48 -
Version 3.0
6.1 Lowering onto an obstacle
If the lift drives with the slave side on an obstacle, the photoelectric cell observes
the equalization of the lift. If the lift is unequal, the lift stops automatically. In this
case push the override switch in the operation unit and the button ”up”
simultaneously until the obstacle can be removed. Now the lift is in normal
function again and can be used as described in this manual.
6.2 Emergency lowering of the main lift
An emergency lowering is an intervention into the control of the lift and can
be done only by experienced personnel.
The emergency lowering must be performed in this order. Otherwise a
malfunction can lead it to damages or lead to danger for body and lives.
Every kind of external leakage must be removed. This is especially
necessary before an emergency lowering
.
Reasons which provoke an emergency lowering are i.e. distrubances of the valves or
a breakdown of the power supply.
6.3 Emergency lowering in case of power failure or defective valves
In case of power failure or defective valves the hydraulic valve for lowering of the lift,
the stop valves at lower side of the hydraulic cylinders and the pneumatic valve to
unlock the ratchet can not be opened. Therefore the lift cannot be lowered. In this
case there is the possibility to lower the lift by opening the hydraulic valve manually,
so the car can be driven off.
If the vehicle is lifted with an axle-lift, the axle-lift must be lowered first, because
the emergency lowering screw of the axle-lift cannot be activated if the lift has
been lowered.
The emergency lowering can only be performed when the ratchets are not
engaged (they can be lifted manually).
The emergency lowering must only be performed by persons instructred to use the
lift. Please refer to the regulation „lowering“. If the hydraulic hoses are damaged,
restore them and go on as described in the operating instructions.
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