Complete Checkup - WEG GPW Series Installation, Operation And Maintenance Manual

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ATTENTION
The brush must be monitored constantly during
operation, and at the end of its useful life, it must
be replaced by another of the same quality
(grain).
In order to ensure a perfect contact of the
grounding brush shaft, this oil, and any residue
between the shaft and the brush, must be
removed before placing the alternator start-up.

6.11 COMPLETE CHECKUP

The frequency of checkups must be defined according to
the environment where the alternator is installed. The more
aggressive the environment (dirt, oil, sea breeze, dust,
etc.), the shorter the checkup interval, as follows:
Clean the dirty windings with a brush;

Use a cloth moistened in a suitable solvent to remove

grease, oil and other impurities from the winding;
 Dry with dry air;
 Blow compressed air through the ventilation channels on
the lamination core of the stator, rotor and on the
bearings.
NOTE
The compressed air must always be blown
after the cleaning; never before.
 Drain the condensed water;
 Clean the inner part of the terminal box;
 Measure the insulation resistance.
ATTENTION
If complete checkups are not performed, dirt
will build up inside the alternators. The
operation under these conditions may reduce
the life of the machine and cause unwanted
downtime and additional costs to restore the
equipment.
32 l Installation, operation and maintenance manual