TM 5-4310-386-14
4-20. Compressor Drive Belt and Pulleys
This task covers:
a.
Adjust
b.
Replace
INITIAL SETUP
Tools
Equipment Condition
General Mechanic's Tool Kit
Compressor unit shut down (para. 2-13).
(NSN 5180-00-177-7033)
Beltguard removed (para. 4-15).
Materials/Parts
Belts
a.
Adjust. (figure 4-21).
(1)
Loosen bolt (1) on idler pulley control arm (2).
(2)
Push down on idler pulley control arm (2) removing all slack in belts. If belts will not tighten, replace belts.
(3)
Tighten bolt (1). Press on belts (3) halfway between compressor pulley (4) and engine pulley (5), belts
should not depress more than 0. 4 0. 6 in.
(4)
Run compressor unit for 15 minutes and recheck belt tension.
4-54
