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 TM 9-2330-330-14&P
ALTERNATOR AND CHARGING CIRCUIT TROUBLESHOOTING
THIS WP COVERS:
Alternator and Charging Circuit Troubleshooting
INITIAL SETUP:
Maintenance Level
Tools and Special Tools
Organizational
Tool kit, general mechanic's (item 4, WP 0171 00)
Multimeter (item 2, WP 0171 00)
References
TM 9-6140-200-14
To troubleshoot M969A3 alternator and charging circuit, perform the test/inspections and corrective
actions provided in Table 1.
Table 1. Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1.
UNDERCHARGED
1.
Check for loose or
Clean battery and clean and
BATTERIES
corroded battery terminals,
tighten battery connections (refer
cables, and connections,
to WP 0056 00). Replace any
and moisture and dirt on
damaged cables (refer to WP
top of batteries.
batteries (refer to TM 9-6140-
200-14). Verify problem is
solved. If battery still does not
hold a charge, go to step 2.
2.
Look for worn or glazed
Adjust alternator drive belt (refer
pulley or loose belt on
to WP 0116 00) if loose. Replace
alternator.
alternator belt (refer to WP 0117
pulley is worn or glazed, notify
Direct Support maintenance.
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