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Appendix – NORD Drivesystems B2050 User Manual

Page 45

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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!