TM 9-4110-256-14
4-36.
V BELT REPLACEMENT AND ADJUSTMENT.
This task covers: a. Removal
b. Installation
c. Adjustment
INITIAL SETUP
General Safety Instructions:
Equipment Conditions:
disconnected.
WARNING
Left side condenser door open.
Materials/Parts:
High voltage and exposed rotating parts are used in
Lock Washers (8)
the refrigeration unit. Personal injury can result if
power is connected
a. Removal.
(1)
Loosen four self locking nuts (1) and four bolts (2).
(2)
Slide AC motor (3) and motor mount bracket (4) as necessary to slip V belt (5) off pulley (6).
(3)
Remove eight bolts (7) and lock washers (8). Discard lock washers.
CAUTION
Moving the fan drive shaft too far can cause damage to the evaporator fan or coil.
(4)
Loosen two set screws (9) and carefully move fan drive shaft (10) just enough to work V belt (5) around
b. Installation.
(1)
Work V belt around support (11) and condenser fan (12).
(2)
Move fan drive shaft (10) to align support (11) mounting holes and install eight new lock washers (8) and
bolts (7). Tighten two set screws (9) against flat surfaces on shaft.
(3)
Slip V belt (5) over sheave (13) and pulley (6).
(4)
Tighten four bolts (2) and four self locking nuts (1).
c. Adjustment.
(1)
Loosen four bolts (14) and move adjusting-motor mount bracket (15) to aline pulley (6) and sheave (13).
When pulley and sheave are aligned, tighten four bolts.
(2)
Loosen four self locking nuts (1) and four bolts (2).
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