Troubleshooting
What to do if...
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Troubleshooting
This section informs you what to do if a malfunction occurs. A malfunction
that has been detected can have various different causes.
Please refer to the "Maintenance and repair" section for instructions on fault
clearance provided it that may be carried out by technical personnel as indi-
cated. Please ensure full compliance with the safety instructions in each
section.
What to do if...
Mechanical malfunctions
Fault identified Possible cause Remedial action
Machine shuts down Power supply disrupted,
error message displayed
Have technical personnel
establish the cause and
eliminate the problem
Motor defect Replace motor
Machine shutdown with
running motor
Pulley journal is broken Replace corresponding
pulley
Belt tension is too low Tension and adjust belt
Belt movement jerky Belt tension is too low Tension and adjust belt
Belt is blocked by foreign
objects
Remove foreign objects
Belt bulges Belt overstretched or incor-
rectly tensioned
Tighten and adjust belt,
if necessary replace belt
Belt generates grinding
noise
Belt rubbing on edges of the
bed
Tighten and adjust belt
Align bed
Realign drive pulley/tail
pulley
Noise develop-
ment/leakage at pulley
bearings
Pulley journal is turning in
internal ring of bearing
Bearing defective
Replace bearing,
replace pulley if neces-
sary