TM-9-2320-280-20-2

TRUCK, UTILITY: M998 SERIES

TECHNICAL MANUAL; UNIT MAINTENANCE; VOLUME 2 OF 3

JANUARY 1996

TM-9-2320-280-20-2 - Page 168 of 951

3-83. SERPENTINE DRIVEBELT MAINTENANCE

TM 9-2320-280-20-2

3-142

Change 3

This task covers:

a. Removal

c.

Installation

b. Inspection

d.

Alignment

INITIAL SETUP:

Applicable Models

M997A2, M1025A2, M1035A2, M1043A2,

M1045A2, M1097A2, M1123

Tools

General mechanic’s tool kit:

automotive (Appendix B, Item 1)

Breaker bar, 3/8 in. (Appendix B, Item 2)

Breaker bar, 1/2 in. (Appendix B, Item 2)

Pulley alignment tool

(Appendix D, Fig. D-120)

Personnel Required

One mechanic

One assistant

Manual References

TM 9-2320-280-10

Equipment Condition

Hood raised and secured (TM 9-2320-280-10).

a. Removal

1.

Position 3/8 or 1/2 in. breaker bar as appropriate on belt tensioner (7) and move tensioner (7)

clockwise to loosen belt (9).

2.

Remove belt (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).

b. Inspection

Clean and check pulleys and pulley groves to ensure a smooth surface.

c. Installation

1.

Position 3/8 or 1/2 in. breaker bar as appropriate on belt tensioner (7) and move tensioner (7)

clockwise to allow installation of belt (9).

2.

Feed belt (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).