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15. Troubleshooting
The following table shows fault symptoms and describes remedial measures in the event of your machine failing to
work properly. If you cannot localise and rectify the problem with this, please contact your service workshop.
Fault Possible cause Solution Danger level
The hydraulic pump does
not start
Voltage absent Check whether the lines
have power supply
Danger of electric shock
This operation must be
carried out by a mainte-
nance electrician.
The thermal switch of the
motor has switched off
Turn the thermal switch
inside the motor housing
back on
The column does not
move downwards
Low oil level Check the oil level and
top up
Danger of pollution
This operation can be
carried out by the machine
operator.
One of the levers is not
connected
Check the fastening of the
levers
Danger of cuts
This operation can be
carried out by the machine
operator.
Dirt on the rails Clean the column
Motor starts but the
column does not move
downwards
Wrong direction of rotation
of the motor with three-
phase current
Check and change the
direction of rotation of the
engine
Maintenance and repairs
All maintenance tasks must be performed by qualied personnel in strict observance of the present usage instruc-
tions. Prior to each maintenance task, all possible precautionary measures must be taken, the motor switched off
and the power supply disconnected (pull out connector). Attach a sign to the machine explaining the failure situation:
“Machine out of service for maintenance. It is prohibited for unauthorised persons to be at the machine and to start
it up.”
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