Nussbaum 2.35 TSK - Driving on an Obstacle; Emergency Lowering; Version: Internal Hydraulic Unit

Operating Instruction and Documentation
2.35 TSK
- 20 -
Problem: Motor starts, lift does not lift!
Potential causes:
The vehicle is too heavy
Level of the oil is too low
The emergency lowering screws are not closed
Hydraulic valve is defective
Gear pump is defective
solution:
unload the vehicle
check the oil level, fill with
hydraulic oil as required
Check the emergency lowering
screw
Call technical service
Call technical service
Problem: the lift does not lower!
Potential causes:
An obstacle is restricting the lift from being lowered
Hydraulic valve is defective
Fuse is defective
Button “lowering” is defective
solution:
(see chapter 6.1)
Call technical service
Check the fuse
Call technical service
6.1 Driving on an obstacle
• If the lift is running onto an obstacle during the lowering, the lift stops through the
mechanical resisted. In this case, press the lever „lifting“ until the obstacle can be
removed.
6.2 Emergency lowering
In this case of power failure or defective valve, the hydraulic valve of the lift will not open any more.
Therefore the lift can not be lowered. In this case there is the possibility to open the hydraulic valve
manually and to lower the lift to it is lowest position, so the vehicle can be driven off.
A emergency lowering is an intervention into the control of the lift and can be done only
by experienced expert.
The emergency lowering must be carried in this order. Otherwise a malfunction can
lead it to damages or lead to danger for body and lives.
Every kind of external leakage has to be removed. This is necessary in particular before
an emergency lowering.
The emergency lowering may only be done by persons which are trained in using the
lift.
Reasons, that can make an emergency lowering necessary, are a defect of the electric system
or disturbances of the valves, etc.
In case of power-failure or defective Valves there is the possibility through suitable tools to
lower the lift in the lowest position, so that the vehicle can be driven off.
6.2.1 Version: internal hydraulic unit