3-81. SERPENTINE DRIVEBELT MAINTENANCE
1.
Position 3/8-in. breaker bar or, as appropriate, a 1/2-in. ratchet wrench on belt tensioner (7) and
move tensioner (7) clockwise to loosen drivebelt (9).
2.
Remove drivebelt (9) from power steering pump pulley (3), alternator pulley (2), water pump pulley
(4), crankshaft pulley (5), air conditioning compressor or idler pulley (8), two upper idler pulleys (1),
and tensioner pulley (6). Release belt tensioner (7).
CAUTION
Serpentine drivebelt failure (abnormal wear or belt dislodgement)
can be caused by misalignment of pulleys, improper installation or
foreign objects introduced into belt path.
NOTE
Check pulley and pulley grooves for damage and debris prior to
installing serpentine drivebelt.
b. Installation
TM 9-2320-387-24-1
3-142
Change 1
This task covers:
a. Removal
c.
Alignment
b. Installation
INITIAL SETUP:
Tools
General mechanic’s tool kit:
automotive (Appendix B, Item 1)
Maintenance and repair shop equipment:
automotive (Appendix B, Item 2)
Pulley alignment tool (Apendix D, Fig. D-107)
Personnel Required
One mechanic
One assistant
Manual References
TM 9-2320-387-10
Equipment Condition
Hood raised and secured (TM 9-2320-387-10).
Maintenance Level
Unit
1.
Position 3/8-in. breaker bar, or as appropriate, a 1/2-in. ratchet wrench on belt tensioner (7) and
move tensioner (7) clockwise to allow installation of drivebelt (9).
2.
Feed drivebelt (9) into grooves on crankshaft pulley (5), air conditioning compressor or idler pulley
(8), two upper idler pulleys (1), alternator pulley (2), power steering pump pulley (3), water pump
pulley (4), and tensioner pulley (6). Release belt tensioner (7).
a. Removal
NOTE
200-AMP dual voltage regulator shown.
