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TM 10-3930-659-20
Table 4-2. Electrical Troubleshooting (Cont).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 4.
Check neutral start switch and reverse warning alarm fuses for continuity (see paragraph 2-27).
Replace damaged 10 amp fuse (see paragraph 6-13).
Step 5.
Check ignition switch for shorts (see paragraph 2-27).
Replace damaged ignition switch (see paragraph 6-10).
Step 6.
Check transmission direction selector lever linkage adjustment.
Adjust direction selector lever linkage (see paragraph 7-5).
Step 7.
Check neutral start switch for continuity (see paragraph 2-27).
Replace damaged neutral start switch (see paragraph 6-4).
Step 8.
Check starter motor relay for voltage and continuity (see paragraph 2-27).
Replace damaged starter motor relay (see paragraph 6-12).
Step 9.
Check three starter interlock relays for voltage and continuity (see paragraph 2-27).
Replace damaged starter interlock relays as necessary (see paragraph 6-12).
Step 10.
Perform starter motor tests (see STE/ICE-R Test NG90).
Step 11.
Remove starter motor (see paragraph 6-3) and inspect starter motor pinion gear.
If pinion gear Is frozen or damaged, replace starter motor (see paragraph 6-3).
8.
STARTER MOTOR TURNS BUT WILL NOT START ENGINE.
Step 1.
Test fuel injection pump fuel shutoff solenoid (see STE/ICE-R Test NG31).
If solenoid is not working, notify Direct Support Maintenance.
Step 2.
Remove starter motor (see paragraph 6-3), and inspect starter motor pinion gear teeth and fly-
wheel gear teeth.
If pinion gear is frozen or teeth are damaged, replace starter motor (see paragraph 6-3).
If flywheel gear teeth are damaged, notify Direct Support Maintenance.
4-27
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