Section II. PN 2260AC AND A0012266AA (Leece-Neville)

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. Performin g

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