Appendix – NORD Drivesystems B2050 User Manual
Page 45
6. Appendix
www.nord.com B2050-GB-0613
-45-
6.5 Troubleshooting
Gear unit malfunctions
Fault
Possible cause
Remedy
Unusual running noises,
vibrations
Oil too low or
bearing damage or
toothed wheel damage
Consult NORD Service
Oil escaping from gear unit or
motor
Defective seal
Consult NORD Service
Oil escaping from
pressure vent
Incorrect oil level or incorrect,
contaminated oil or unfavourable
operating conditions
Oil change
Use oil expansion tank (Option
OA)
Gear unit becomes too hot
Unfavourable installation
conditions or gear unit damage
Consult NORD Service
Shock when switching on,
vibrations
Defective motor coupling or
loose gear unit mounting or
defective rubber element
Replace elastomer gear rim,
tighten motor and gear unit
fastening bolts, replace rubber
element
Drive shaft does not rotate
although motor is running
Fracture in gear unit or
defective motor coupling or
shrink disc slippage
Consult NORD Service
Fault or failure of the oil / air
cooling system
See the separate operating
instructions for the oil / air cooling
system
Pressure at the pressure
safeguard is too low
Pump is not releasing any oil or
leakage in the pipeline
Check the pump and the pipes
Attention!
Warning: shut down the gear unit immediately should any of the above faults occur!