5.
Problems
, causes, actions
16
Rev. D 2013_03_en
5. Problems, causes, actions
The following lists contain information on
potential problems, their causes, and
actions to rectify the fault.
Repairs to safety mechanisms on the lift may
richtungen only be carried out by authorized
maintenance contractors (component persons).
During a breakdown (power failure), the lift remains
automatically in safe mode. This means that all movement
is halted.
5.1 Troubleshooting by the operator
The following troubleshooting measures may only be carried out by
an authorized operator.
Before doing so, make sure that power supply is connected, dass die Netz-
the main switch is in the "ON
“position
and an air supply of 6...8 bar is connected.
Problem
Possible cause
Actions
The motor is not running.
Mains fuse is faulty.
Reset or change the mains fuse.
The runways lower unevenly
during the lowering process
Lift
or rolling jack runways tilted.
Main lift
Slack cable switch or broken
cable switch activated.
Can lift when cable is slack.
If cable is broken the whole lift
is locked.
Lowering locked.
Rolling jack
Photosensor disconnected.
Height difference > 50 mm.
Whole lift is locked.
An object is blocking the
downward motion. The lower-
ing process is aborted.
Load unevenly distributed.
Settling function still active:
main lift and rolling jack partly
still in the lock position (Lock
bar/ratchets).
Slack or broken cable on one
of the lift columns.
Main lift
1. Move lift up slightly. Make
sure that all cables are ten-
sioned.
2. Remove objects from under
the lift.
3. Carry out adjustments. To do
so, lower the lift completely.
4. Check that lift is being cor-
rectly operated.
5. If this cannot be done:
(
Chapter 6. Authorized low-
ering) or (
Chapter 9.
Maintenance/repair).
Rolling jack
1.
Consult a competent person
(
Chapter 6. Authorized low-
ering).
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If the problem is not rectified by the listed
measures, you must seek advice from a com-
petent person.
The troubleshooting measures listed in 5.2
may only be carried out by maintenance con-
tractors.
If the lift is out of order for long periods, carry
out the following steps:
1. Lower the lift to the lowest position.
2. Switch the main switch to Off and lock with a
padlock.
3. Disconnect the power supply and air supply.
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