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ELECTRICAL CONNECTIONS,
WINDINGS
Inspect for loose or contaminated connections
Check wires for cracked or frayed insulation.
Tighten connections and replace defective or
oil soaked insulation.
If inspection shows that varnish coatings on
the windings have deteriorated, they should be
coated with insulating varnish. Please refer to
Marathon Electric for insulation system
requirements.
LUBRICATION
All generators are lubricated before leaving
the factory and are ready for operation. As a
general rule, bearings should be re-lubricated
annually or at the indicated intervals in table
5-3, whichever occur first.
Unusually severe operating conditions, such
as high ambient or dusty environments,
require more frequent lubrication (every six
months or one half the table intervals,
whichever occurs first).
Use Chevron SRI or equivalent anti-friction
type high quality, grease with a lubrication
temperature' range of -22° to +350° F (-30°
to +175° C)
To add or renew grease, proceed as follows:
1. Stop unit.
2. Wipe the grease plugs and surrounding parts to
insure they are clean.
3. Remove both the fill and drain plugs.
See figure 5-2
4. Insert 1/8" N.P.T. grease fitting in fill pipe.
5. Free the drain holes of any hard grease, using a
piece of wire it necessary.
6. Using a low-pressure grease gun, add grease
according to the amounts in table 5-3.
7. Start unit with drain plug removed - fill pipe
may be open or closed. Allow unit to run 15
minutes to allow excess grease to drain.
8. Stop unit, wipe off any drained grease, and
replace filler and drain plugs.
Figure 5-2
24
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