Table 3-6. Unit Troubleshooting Table. -- Continued
Test or Inspection
CHARGING INDICATOR LIGHT REMAINS ILLUMINATED OR DOES NOT CHARGE.
Check drive belt (1) and alternator pulley (2) for excessive wear or damage (TM 5-2420-230-10).
If drive belt (1) is loose, inspect self tensioner (3) and replace if necessary (Para L-9).
If drive belt (1) is worn or damaged, replace drive belt (Para 4-6).
If alternator pulley (2) is worn or damaged, replace alternator pulley (Para 12-10).
Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry or tools contact positive
electrical circuits, a direct short may result. Damage to equipment and injury or death to personnel
If exciter relay (4) is not functioning correctly, replace relay (Para 12-15).
With engine running, check for 26 to 28 Vdc at terminal B on alternator (5) (refer to FO-3).
If alternator (5) is not charging 26-28 Vdc, replace alternator (Para 12-10).
If continuity is not present, replace wiring harness (6) (Para 12-27).