PS S1.2 1700
001 OE35
Version no T-code
F-code Section C-code
Drive Motor 36 Volt
82
Service Manual 1997-10-21
Open Circuit
Check between all connecting terminals with test
leads. If the bulb fails to light, an open circuit is
indicated.
Shorted Circuit
Check condition of coil insulation and look for signs of
overheating. Shorted windings in series coils are very
difficult to detect. Generally, if the coil insulation is
sound and there are no signs of overheating, the coil
can be presumed good.
2.6.2. Frame and Field Service Notes
1. If the inside of the motor is exceptionally dirty and
there is evidence of a grounding condition caused by
the dirt, the inside of the motor can be given an
additional coat of insulating varnish. Red glyptol can
be used if a better material is not available, however,
we recommend using a class H Polyurethane air
drying insulating varnish. This is readily available
under various brand names from electrical repair or
parts houses in aerosol type dispensers.
2. Before spraying field coils, make sure they are
absolutely clean and dry. Protect brush rigging, pole
shoe faces, and end head seats to keep varnish off.
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