ARMY TM 9-6115-645-24
AIR FORCE TO 35C2-3-444-12
MARlNE CORPS TM 09244A/09245A-24/2
2-83 FAN BELTS.
2-83.1
a.
b.
c.
d.
e.
f.
g.
2–83.2
a.
b.
c.
d.
e.
f.
g.
h.
i.
2-83.3
a.
b.
c.
d.
e.
f.
2-116
Inspection.
Shut down generator set.
Open battery access door and disconnect negative battery cable.
Open engine access doors.
Inspect fan belts (6, FIGURE 2-24) for frays, cracks, oil soaking, and other damage.
Replace fan belts that show any of above or cannot be adjusted for proper tension.
Close engine access doors.
Connect negative battery cable and close battery access door.
Test and Adjustment.
NOTE
Run engine for 5 minutes if belt is cold. If belt is hot, let cool for 10 to 15 minutes.
Shut down generator set.
Open battery access door and disconnect negative battery cable.
Open engine access doors.
Check fan belts (6, FIGURE 2-24) for 1/2 inch (1.27 cm) deflection midway between alternator pulley (3) and
crankshaft pulley (5).
If fan belts need adjustment, loosen alternator mounting bolt (1) and nut (2).
Do not pry against alternator rear frame. Damage to alternator or mounting brack-
ets could occur.
Apply outward pressure to alternator front frame until belt tension is correct.
Tighten alternator mounting bolt (1) and nut (2).
Close engine access doors.
Connect negative battery cable and close battery access door.
Removal.
Shut down generator set.
Open battery access door and disconnect negative battery cable.
Open engine access doors and remove bolts (14, FIGURE 2-23), washer (15), Iockwashers (16), and fan
guard (17) from shroud (21).
Loosen alternator mounting bolt (1, FIGURE 2-24) and nut (2).
Pivot alternator to relieve tension on fan belts (6), and remove belts from alternator (3), fan pulley (4), and crank-
shaft pulley (5).
Slip belts (6) over fan (43, FIGURE 2-23) and remove belts from generator set.
