Regreasing Procedure - Siemens 1LG0 Installation And Maintenance Manual

4.4 Regreasing procedure

All local safety regulations must be considered when regreasing the motor
Warning! Warning!
in operation or at a standstill.
Note:
The regreasing nipple (Zinc coated) should be cleaned of old grease and dust
prior to attaching the regreasing device.
It is recommended that the DE and NDE bearings should be regreased while the motor
is in operating and at operating temperature.
If it is not possible to regrease the motor during operation, then it recommended that
a partial amount of the grease is injected and then the motor energised and rotated for
a few revolutions to allow for grease dispersion. After coming to a complete stop the
remaining grease should be added.
If a DE or NDE bearing have experienced overheating, it is recommended that the
bearing should be inspected for heat damage and replaced or regreased as necessary.
Note:
Bearing grease will appear dark in colour if overheating was experienced.
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Care must be taken not to over grease the bearings as
this can result in increased bearing temperatures.
Dust and old grease must be prevented from entering
the motor bearings during the regreasing cycles.