Nussbaum JUMBO NT 3500, Operating Instruction And Documentation

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Operating Instruction and Documentation
Jumbo NT 3500
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Platform stands on a obstacle
The hydraulic valve is defective
Fuse is defective
Button „lowering“ is not pressed or defective Raise the lift
Call the service partner
Check the fuse
Check the operating button
6.1 Driving on an obstacle
If the lift is driven on an obstacle the lift stops mechanically. Press the button „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.
The emergency lowering can only be performed by persons instructed to use the lift.
Please refer to the regulation „Lowering the vehicle“.
Every kind of external leakage must be removed. This is necessary particular before
emergency lowering.
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.
• Control the dangerous places of the lift and be sure that there are no objects or people in
the immediate area of the lift or on the lift.
• Before the emergency lowering process loose the electrical power supply.
• Loose and remove the plastic cover of the operating unit. (see pic. 6)
• Loose the locknut of the emergency lowering screws (N1 & N2).
pic 6:
Position Y =
bore hole for the emergency lowering screw
• Open slowly ¼ turn the emergency lowering screw N1with a suitable tool. Do not
unscrew the screw!
• Control the dangerous places of the lift and be sure that there are no objects or people in
the immediate area of the lift or on the lift.