TM-9-2320-280-34

TRUCK, UTILITY: M998 SERIES

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE

JANUARY 1996

TM-9-2320-280-34 - Page 169 of 1258

TM 9-2320-280-34

3 - 23.

ENGINE INSTALLATION (6.2L) (Cont ’d)

NOTE

Perform steps 132 through 136 for all models except M996, M996A1, M997, and M997A1 vehicles.

132.

Feed belt set (22) into grooves on crankshaft pulley (21), water pump pulley (14), alternator

pulley (17), and power steering pump pulley (20).

133.

Loosen three capscrews (15) from alternator (18) and alternator bracket (19).

134.

Adjust alternator belt set (22) by inserting 1/2-inch drive ratchet and extension in square hole (27) of

alternator bracket (16).

Turn until belt set (22) appears tight, and tighten three capscrews (15) on

alternator bracket (16).

135.

Using belt tension gauge, check each belt of belt set (22) individually for proper tension.

NOTE

•

New belt tension should read 105

±

5 lbs (476

±

22 N).

•

Used belt tension should read 90

±

5 lbs (400

±

22 N).

136.

If belt set (22) tension is correct, tighten three capscrews (15) on alternator (18) to 40 lb-ft (54 N m).

If not, repeat steps 116 through 118.

If tension cannot be properly adjusted, replace belt set (22).

137.

Position fitting (13) on clutch adapter (24) at 6 o'clock.

138.

Align fan blade (12) onto fan drive (23) and install with four lockwashers (26) and nuts (25).

Tighten

nuts (25) to 45 lb-ft (61 N m).

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