Manual for High Voltage Process Performance Motors
Commissioning and Start-up - 41
3BFP 000 063 R0101 REV D
Figure 5-8. Example of lubrication channel through bearing arrangement of horizontal
machine
NOTE: The re-lubrication interval will never be longer than 12 months.
The type of original grease used is found on the bearing plate on the machine. Acceptable types
of grease can be found in Chapter 7.5.1 Rolling bearings.
The temperature of the bearings will initially increase because of the excess grease. After few
hours, the excess grease will be discharged through the lubrication valve and the temperature of
the bearing will return to normal running temperature.
If available, and after the machine has been running for several hours, measure the vibrations or
SPM-values from the SPM-nipples, and record the values for future reference use.
5.8.1 Vibrations
For a comprehensive discussion on vibrations, see Chapter 7.4.2 Vibration and noise.
5.8.2 Temperature levels
The temperatures of the bearings, stator windings and cooling air should be checked when the
machine is running.
The winding and bearing temperature may not reach a stable temperature until after several (4-
8) hours, when running at full load.
The stator winding temperature depends on the load of the machine. If full load cannot be
obtained during or soon after commissioning, the present load and temperature should be noted
and included in the commissioning report.
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