TM 5-4310-384-13
INSTALLATION.
a.
Disconnect the main power source and turn the power switch OFF.
b.
Be sure the electric motor mounting bolts (1) are loose and motor is moved toward compressor flywheel.
NOTE
V-belts must be replaced as a set.
c.
Place V-belts (2) in position over compressor flywheel (3) and drive pulley (4).
d.
Adjust belt tension. Refer to next paragraph.
V-Belt Adjustment
ADJUSTMENT.
WARNING
Disconnect main power source and turn compressor unit off before performing maintenance procedures.
a.
Disconnect main power supply and turn power switch OFF.
b.
Remove belt guard cover. Refer to paragraph 3-23.
c.
Loosen the electric motor mounting bolts (1) and slide motor away from compressor to tighten belt tension or
towards compressor to loosen.
CAUTION
Too little belt tension causes belts to overheat and wear out prematurely. Too much tension causes
bearing wear in motor and compressor.
d.
Tighten mounting bolts (1) when proper belt tension is achieved. Belt should move 1/2" when pushed halfway
between pulley (4) and flywheel (3).
e.
Install belt guard cover. Refer to paragraph 3-23.
3-29
