TM-9-2920-257-30-P
GENERATOR, ALTERNATING CURRENT, 200 AMPERES
TECHNICAL MANUAL; DIRECT SUPPORT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS
MAY 1987
TM-9-2920-257-30-P - Page 9 of 111
TM 9-2920-257-30&P
Section II.
PN 2260AC AND A0012266AA (Leece-Neville)
2-3.
TROUBLESHOOTING PROCEDURES
a.
After the direct support unit receives the generator, make a preliminary inspection: before installation on an
engine, or when there is an unknown cause of failure.
b.
Discover the cause for failure, then disassemble and repair before proceeding with prescribed tests.
Performing
additional operational tests on a damaged generator will only increase the damage.
Table 2-1.
Generator Troubleshooting
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
GENERATOR FAILS TO CHARGE, OR OVERCHARGES, OR RUNS AT FULL FIELD VOLTAGE.
NOTE
Complete all steps in troubleshooting procedure unless otherwise indicated,
because one type of fault condition can cause other fault conditions and more than
one generator component could be defective.
Step 1.
Remove cover plate, connector assembly and mounting plate, and printed circuit panel assembly, brushes
and brush holder in accordance with paragraph 3-3b.
Step 2.
Refer to figure 3-2 and remove three nuts (10) and six rectifier leads from three stator terminal studs.
2-2
Change 1
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