TB 9-2320-335-13&P
SERPENTINE DRIVEBELT MAINTENANCE
(SERIAL NUMBERS 300000 AND ABOVE)
This task covers:
a. Removal
c. Alignment
b. Installation
INITIAL SETUP:
Tools
Manual References
General mechanic's tool kit:
TM 9-2320-387-10
automotive (Appendix B, Item 1)
TM 9-2320-387-24P
Maintenance and repair shop equipment:
Equipment Condition
automotive (Appendix B, Item 2)
Geared fan driveshaft removed (para. 3-80.3).
Pulley alignment tool
(Appendix D, Fig. D-107)
Maintenance Level
Unit
Personnel Required
One mechanic
One assistant
NOTE
200-AMP dual voltage regulator shown.
a. Removal
1.
Position 3/8-in. breaker bar or, as appropriate, 1/2-in. ratchet wrench on belt tensioner (10) and
move belt tensioner (10) clockwise to loosen drivebelt (2).
2.
Remove drivebelt (2) from power steering pump pulley (6), idler pulley (5), alternator pulley (4),
water pump pulley (8), crankshaft pulley (7), air conditioning compressor or idler pulley (1), two
upper idler pulleys (3), and belt tensioner pulley (9). Release belt tensioner (10).
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 belt.
b. Installation
1.
Position 3/8-in. breaker bar or, as appropriate, 1/2-in. ratchet wrench on belt tensioner (10) and
move belt tensioner (10) clockwise to allow installation of drivebelt (2).
2.
Feed drivebelt (2) into grooves on crankshaft pulley (7), air conditioning compressor or idler pulley
(1), two upper idler pulleys (3), alternator pulley (4), idler pulley (5), power steering pump pulley
(6), water pump pulley (8), and tensioner pulley (9). Release belt tensioner (10).
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