TM 5-2420-230-24-1
Table 3-6. Unit Troubleshooting Table. -- Continued
Malfunction
Test or Inspection
Corrective Action
37.
NOISY ALTERNATOR.
Step 1.
Check drive belt (1) for excessive wear (TM 5-2420-230-10).
If drive belt (1) is worn, replace drive belt (Para 4-6).
Step 2.
Remove drive belt (1) (Para 4-6).
Step 3.
Inspect alignment of alternator pulley (2).
Step 4.
Ensure alternator (3) and alternator bearing (4) are functioning correctly.
Step 5.
Spin alternator shaft to ensure it is not noisy.
If alternator pulley (2) is out of alignment, alternator (3) or alternator bearing (4) is not functioning
correctly, or alternator shaft is noisy, replace alternator (3) (Para 12-10).
Step 6.
Install drive belt (1) (Para 4-6).
Change 1