HAPP 40
© 2013 HAPP Australia Pty Ltd
Version 8
18
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P a g e
Troubleshooting
Trouble
Diagnosis
Remedy
Lift does not respond.
Main switch off.
Turn on main switch.
Mains fuse defective.
Replace mains fuse.
Motor
starts
up,
pressure
build-up
insufficient to raise load.
Lowering valve
Permanently open
Close lowering screw.
Hydraulic system leakage
Contact service.
Low fluid level
Remove leakage.
Load on lift too heavy.
Check fluid level, add
fluid as required.
Load on lift too heavy.
Reduce load, observe
rated load capacity.
Level
difference
between carriages too
big.
Adjust cables maladjusted.
Contact service.
Lift cannot be lowered.
Latch release defective.
Contact service.
