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 TM 55-1905-221-14-3
Table 6-1. Troubleshooting (Continued).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 2.
Test for grounded or shorted turns in rotor winding.
Disassemble alternator and replace rotor. Refer to paragraph 6-18.
Step 3.
Test for shorted or open rectifier diode(s).
Disassemble alternator and test each diode plate for defective diode(s). Replace defective
diode(s). Refer to paragraph 6-18.
ELECTRIC STARTING MOTOR
1. Starter Does Not Crank Engine Adequately.
Step 1.
Check for worn commutator.
Repair commutator or replace armature if damaged beyond repair. Refer to paragraph 6-19.
Step 2.
Test for open field coils on armature.
Disassemble starter and replace open field coils. Refer to paragraph 6-19.
Step 3.
Test for open field coils on frame assembly.
Disassemble starter and replace open field coils. Refer to paragraph 6-19
Step 4.
Check for worn bearings.
Disassemble starter, overhaul and replace defective bearings.
STEERING SYSTEM
1. Steering Wheel Difficult to Turn.
Check for trapped dirt in helm unit.
a.
Disassemble unit and thoroughly clean all surfaces of spool. Refer to paragraph 6-5.
6-13
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