User manual

114
Version 2.4 (10/2011) en
Original instructions
Drum Motor
Troubleshooting
Oil leakage around shell / end house End housing loose in shell Check for gaps between shell and end
housings.
Check for excessive belt tension or
shock loading.
End house / shell seal broken Check for excessive heat or belt tension
and shock loading.
Oil discoloration - Silver metallic
particles
Gear teeth or bearing wear Check condition of bearings and seals.
Check for excessive load.
Oil discoloration - White color Water or other fluid contamination Check condition of seals and for water /
fluid contamination.
Replace oil (see "It is not necessary to
change the oil, but it may be done for
special reasons.", page 98).
Oil discoloration - Black color Extreme working temperature
Overloading
No belt fitted
Check if the application / operating
conditions meet the Drum Motor's
specification.
Check for current overload and high
ambient temperature.
Cable / Terminal Box broken or
damaged
Customer misuse or damage during
installation
Check the nature of the damage and
possible cause.
Replace Terminal Box.
Damaged in transit Check the nature of the damage and
possible cause.
Replace Terminal Box.
Shaft bearings failure Overload Check if the application loading meets
the Drum Motor's specifications.
Shock loading Check if application loading meets Drum
Motor's specifications.
Excessive belt tension Check for excessive belt tension.
Reduce as necessary.
Lack of lubrication Check the Drum Motor's oil level and
installation. If vertically mounted, check
Drum Motor motor specifications.
Shaft stress or misalignment Check for excessive screw tension and
frame or mounting bracket
misalignment.
Shaft seal damaged / worn Check for external contamination.
Contact your local Interroll distrubutor.
Loose or tight bearing journal fitting Contact your local Interroll distrubutor.
Transmission failure Overload / shock loading or normal
wear and tear
Check if application loading meets the
Drum Motor's specifications.
Check lifespan.
Rotor bearings worn / failed Lack of lubrication Check correct type and level of oil.
Symptom Possible cause Help