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9.
Faults, causes and remedy
Observe the instructions in section 3, "Safety instructions", and in section 10, "Maintenance and repair"!
9.1
General information on faults and malfunctions
Faults and malfunctions occurring during the guarantee period and requiring repair work on the
gear unit must be carried out only by Siemens customer service.
In case of faults and malfunctions occurring after the guarantee period and the cause of which
cannot be precisely identified, we advise our customers to contact our customer service.
Siemens will not be bound by the terms of the guarantee or otherwise be responsible
in cases of improper use of the gear unit, modifications carried out without the
approval by Siemens or use of spare parts not supplied by Siemens.
To remedy faults and malfunctions, the gear unit must always be taken out of service.
Secure the drive unit to prevent it from being started up unintentionally.
Attach a warning notice to the start switch!
9.2
Possible faults
Table 9:
Faults, causes and remedy
Faults
Changes in gearunit noise.
Loud noises in the area of the
gearunit fastening.
Increased temperature at the
bearing points.
Exterior of gear unit is oiled up.
Causes
Damage to gear teeth.
Excessive bearing play.
Bearing defective.
Gearunit fastening has worked
loose.
Oil level in gearunit housing too
low or too high.
Oil too old.
Oilsupply system defective.
Bearing defective.
Inadequate sealing of housing
covers and/or joints.
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Remedy
Contact Customer Service.
Check all toothed components
and replace any damaged parts.
Contact Customer Service.
Adjust bearing backlash.
Contact Customer Service.
Replace defective bearings.
Tighten bolts / nuts to specified
torque.
Replace damaged bolts / nuts.
Check the oil level at room
temperature and, if necessary,
top up oil.
Check date of last oil change;
if necessary, change oil.
See section 10.
Check the oilsupply system,
replace any defective parts. Consult
operating instructions for oilsupply
system.
Contact Customer Service.
Check and, if necessary,
replace bearings.
Seal joints.
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