ARMY TM 9-6115-643-24
AIR FORCE TO 35C2-3-445-22
f.
Replace fan belt that shows any of above or cannot be adjusted for proper tension
g Replace fan guard
h. Close engine access doors
I
Connect negative battery cable and close battery access door.
2.83.2.
Test and Adjustment
NOTE
Run engine for 5 minutes if belt is cold. If belt is hot, let cool for 10 to
15 minutes.
a. 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 1-25) for proper tension using a suitable belt tension gauge. Belt
tension shall be 70 pounds.
e. If fan belt needs adjustment, loosen alternator mounting bolt (1) and nut (2).
Do not pry against alternator rear frame. Damage to alternator or
mounting brackets could occur.
f.
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.
i.
Connect negative battery cable and close battery access door.
2.83.3.
Removal.
a. Shut down generator set.
b. Open battery access door and disconnect negative battery cable.
c. Open engine access doors.
d. Remove fan guards, paragraph 2.77.2.
e. Loosen alternator mounting bolt (1, FIGURE 2-25) and nut (2).
f.
Pivot alternator to relieve tension on fan belt (6). and remove belt (6) from alternator pulley (3), fan pulley (4), and
crankshaft pulley (5).
g. Slip belt (6) over fan (36, FIGURE 2-23) and remove belt from generator set
2.83.4.
Installation.
a. Slip fan belt (6, FIGURE 2-25) over fan (36. FIGURE 2-23).
b. Install belt (6, FIGURE 2-25) onto alternator pulley (3), fan pulley (4), and crankshaft pulley (5)
c
Adjust tension on fan belt (6). paragraph 2.83.2.
d. Install fan guards, paragraph 2.77.3
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