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TM 5-2420-222-34
7-1.
ENGINE AC GENERATOR REPAIR (Con’t).
WARNING
Compressed air used for cleaning or drying purposes, or for clearing restrictions
should never exceed 30 psi (207 kPa). Wear protective clothing (goggles/shield,
gloves, etc.) and use caution to avoid injury to personnel.
3.
Using fine abrasive paper, clean two slip rings (28 and
29) on rotor (15). Remove loose particles with
compressed air.
4.
Inspect all metal parts for cracks, breaks, abnormal
bends, and burrs. Replace all defective parts.
5.
Inspect all threaded parts for damaged threads. Replace
all damaged parts.
6.
Measure length of exposed brushes (31 and 32) of brush
assembly (3). Exposed length must be y in. (6.35 mm)
or more.
7.
Using multimeter, check terminal (30) and brush (32) for
open circuit. No open circuit is allowed.
8.
Using multimeter, check housing (33) and brush (31) for
open circuit. No open circuit is allowed.
9.
Using multimeter, check for improper grounding between
housing (33) and terminal (30). No continuity Is allowed.
TA701336
7-6
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