ARMY TM 9-6115-644-24
AIR FORCE TO 35C2-3-446-12
MARINE CORPS TM 09249A/09246A-24/2
Run engine for 5 minutes if belt is cold. If belt is hot, let cool for 10 to 15 minutes.
Shut down generator set.
b. Open battery access door and disconnect negative battery cable.
c. Open engine access doors.
d. Check fan belt (6, FIGURE 2-25) for 1/2 inch (1 .27 cm) deflection midway between altemator pulley (3) and
crankshaft pulley (5).
If fan belt needs adjustment, loosen alternator mounting bolt (1 ) and nut (2).
FIGURE 2-25. Fan Belt
Do not pry against alternator rear frame. Damage to alternator or mounting brackets
Apply outward pressure to alternator front frame until belt tension is correct.
g. Tighten alternator mounting bolt (1) and nut (2).
h. Close engine access doors.