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![]() TM 5-4320-273-14
Table 4-2. Troubleshooting -- Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
ENGINE -- Continued
NOTE
Before you install new brushes, check the commutator on the armature shaft. It must be smooth and concentric,
free of burrs, scoring, high segments, or other damage. If the commutator is damaged, replace starting motor.
Install new brushes by connecting brush leads to field leads. Reposition brushes through access openings
and secure by hooking spring sets (11). Slide cover band (10) over access openings and secure with cover
band screw.
Replace starting motor by pushing straight into engine and secure with three capscrewe (7) and lockwashers
(8) to flywheel housing.
Secure the support bracket (6) to the starting motor by replacing machine screws (4) and flat washer (5).
Install the support bracket to the engine by replacing lockwashers (9) and nuts (l).
Connect electrical cables (2) to starting motor by replacing nut (l).
Step 4. Check for internal seizure of the engine or pump.
If the unit cannot be cranked manually, report seized engine or pump to direct support maintenance.
ENGINE CRANKS BUT FAILS TO START (NO SPARK).
2.
Cheek ignition wiring assemblies.
Step 1.
Tighten loose connections or replace damaged spark plug cables (1, 2, and 3, fig. 4-3).
4-8
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