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 164 of 951

3 - 8 1 .

A LT E R N ATOR DRIVEBELT SET REPLACEMENT

This task covers:

a. Removal

b.

Installation

a. Removal

1.

Loosen two capscrews (8) securing alternator (2) to bottom mounting bracket (9).

2.

Loosen adjusting bracket capscrew (1) and push alternator (2) toward engine

NOT E

Some vehicles have a quick-disconnect on fan drive hose.

3.

Disconnect fan drive hose assembly (11) from fan drive assembly (10).

4.

Remove belt set (5) from power steering pump pulley (4), alternator pulley (3), water pump

pulley (7), and crankshaft pulley (6).

INITIAL SETUP:

Applicable Models

All vehicles except: M997A2, M1025A2,

M1035A2, M1043A2, M1045A2, M1097A2,

M1123

Tools

General mechanic’s tool kit:

automotive (Appendix B, Item 1)

Manual References

TM 9-2320-280-10

TM 9-2320-280-24P

Equipment Condition

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

• Battery ground cable disconnected (para. 4-73).

b. Installation

1.

Feed belt set (5) into grooves on crankshaft pulley (6), water pump pulley (7), alternator pulley (3),

and power steering pump pulley (4).

NOT E

Some vehicles have a quick-disconnect on fan drive hose.

2.

Connect fan drive hose assembly (11) to fan drive assembly (10).

TM 9-2320-280-20-2

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Change 2

NOT E

Replace alternator drivebelts in matched sets only.