Water Pump and Fan Blade

TM 10-3930-632-12

Figure 4-39. Fan and Alternator Belt Adjustment and Replacement, and Alternator Replacement

b. Replacement. If fan and alternator belts are

blade and seat them in the crankshaft pulley, alternator

drive pulley, and fan pulley.

worn, cracked or frayed, replace them as a matched set.

(4) Tighten and adjust the fan belts as

Do not replace the belts singly, since this will result in

directed in subparagraph a above.

excessive wear and premature failure of the new belt.

Replace as follows:

4-56. Water Pump and Fan Blade

(1) Loosen the adjusting strap screw (fig.

a. Removal and Disassembly.

4-39) that secures the adjusting strap to the alternator.

Push the alternator toward the engine to relieve all belt

(1) Remove the fan and alternator belts

tension.

(2) Slip the belts from the pulleys and over

(2) Remove the fan blade and water pump

the fan to remove them.

(3) Slip the new belts over the cooling fan

4-54