TM 5-3805-262-20
ADJUSTMENT
( a)
(b)
(c)
(d)
( e )
( f )
(g)
( h )
Using a belt tension gage (1),
check tension of drive belt (2)
as shown below. Tension of a
used drive belt shall be 90
pounds; tension of a new drive
belt shall be 110 pounds. If a
drive belt tension gage is not
a v a i l a b l e , d e p r e s s d r i v e b e lt
midway between air compressor
pulley and fan pulley. Drive
belt deflection should be 1/2
i n c h.
If tension of drive belt is not
as specified above, do the fol-
lowing steps.
Loosen two capscrews (3) secur-
ing air compressor (4) to mount-
ing bracket (5).
Using clothes hanger wire, wrap
wire (6) around base of air com-
pressor as shown. Then, using a
prybar (7) move air compressor
away from engine until proper
d r i v e b e l t t e n s i o n i s o b t a i n e d.
Aline air compressor pulley with
fan pulley and tighten two cap-
screws (3) to secure air com-
pressor (4) to mounting bracket
( 5 ) .
Using belt tension gage (l),
check tension of drive belt (2)
as shown above. Tension of a
used drive belt shall be 90
pounds; tension of a new drive
belt shall be 110 pounds. If a
drive belt tension gage is not
a v a i l a b l e , d e p r e s s d r i v e b e lt
midway between air compressor
pulley and fan pulley. Drive
belt deflection should be 1/2
inch. If necessary, do steps (c)
through (e) above.
Remove wire from around base of
air compressor.
R e i n s t a l l e n g i n e r i g h t s i de
panels (page 9-17).
7-97
