TROUBLESHOOTING
HOLZMANN MASCHINEN GmbH www.holzmann-maschinen.at
26
SHT150XF | SHT300XF | SHT350XXF
NOTICE
Hydraulic oils are toxic and must not be released into the environment.
When changing, use suitable collecting containers with sufficient volume!
Observe the disposal instructions of the oil manufacturer. If necessary,
contact your local authority for further information on proper disposal.
NOTICE
Please note that in certain countries lift tables must be inspected annually by an
expert. Check the applicable legal requirements in good time and, if necessary,
contact your local authority for further information regarding a necessary inspection.
If you are unable to carry out necessary repairs properly and/or do not have the required
training, always consult a specialist to get the problem fixed.
Fault
Posible Cause
Remedy
Machine does not lift,
Pump does not work
Lowering handle is in the lowering
position.
Too little oil in the cylinder.
Move lever to lifting position.
Top up with oil.
Machine does not lift load,
pump works correctly
Load too heavy, pressure relief
valve is effective.
Drain valve no longer closes or
valve seat leaks due to soiling.
Reduce load.
Clean or replace.
Device lifts slowly or not at
all when pumping with or
without load
Pressure relief valve adjusted or
valve seat dirty.
Hydraulic cylinder is defective.
Adjust or clean the valve.
Repair or replace hydraulic
pump.
Lifted load sinks
automatically, oil loss at
hydraulic cylinder
Leak in the hydraulic system.
Drain valve no longer closes or
valve core leaks due to oil
contamination.
Incorrect valve adjustment.
Sealing elements are worn.
Seal it.
Clean or replace.
Adjust the drain valve.
Replace sealing elements.
Lifted load sinks too slow.
Temperature too low, hydraulic oil
too viscous.
Go to a warmer room.
Lifting height not reached
Oil missing.
Top up or change oil.
