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 TM 5-2420-222-20-1
V-BELT ADJUSTMENT - CONTINUED
ACTION
LOCATION
ITEM
REMARKS
ADJUSTMENT - CONTINUED
1.
Guard (1), if
Screw (5) and
Using 9/16-inch box wrench, 9/16-Inch,
present, engine
nut (6)
3/8-inch drive socket, and ratchet handle,
accessory bracket
loosen.
(2), ac generator
(3), and double
angle bracket (4)
2.
Ac generator
Screw (9)
Using 9/16-inch box wrench, loosen.
adjusting strap (7)
and water pump (8)
3.
Ac generator
Screw (10)
Using 1/2-inch, 3/8-inch drive socket and
adjusting strap (7),
ratchet handle, loosen.
guard (1), if
present, and
ac generator (3)
CAUTION
Apply force to ac generator front husing only. Force applied to rear housing may damage parts.
4.
Ac generator adjust-
Ac generator (3)
a. Pull awayfromfan pulley (11), putting
ing strap (7), engine
tension on V-belt (12).
accessory bracket
b. Hold in position.
(2), and double
Make sure V-belt is properly seated
angle bracket (4)
in each pulley groove.
5.
Ac generator adjust-
Screw (10)
Using 1/2-inch, 3/8-inch drive socket and
ing strap (7), guard
ratchet handle, tighten.
(1), if present, and
ac generator (3)
6.
Ac generator
V-belt (12)
Using 0 to 50-pound range dial indicating
pulley (13), fan
scale and 6-inch machinist's steel rule,
pulley (11), and
measure tension.
crankshaft
V-belt should deflect 3/4-nch
pulley (14)
(19 mm) with 20 pound (89 N) force
applied midway between ac generator
pulley and crankshaft pulley.
2-428
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