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 TM
9-2350-238-20-2
2-52.
MAINTENANCE
OF
BOOM
AND
WINCH,
BOOM,
PULLEY,
AND
RELATED
PARTS
(CONT).
INSTALLATION
Sling boom as shown to prevent un-
balanced
boom
action
which
could
cause
serious
injury.
Use hoist with 2000 lb (908 kg)
minimum
lifting
capacity
to
prevent
injury to personnel
and
damage
to
equipment.
NOTE
Start engine and activate boom cyl-
inders to aid in aligning boom cylin-
der eyes.
Another
M578
Recoverv
Vehicle
or
an
M88A1
Recovery
Vehicle,
if
available, may be used for lifting.
1 Using
hoist
with
a
lifting
capacity
of
2000
lb (908 kg), lower crane boom (1) and
align
boom
eyes
with
cylinder
eyes
and
cab
eyes.
2 Install
two
lower
hinge
headless
straight
pins (2) to crane boom (1).
3 Install
two
nut
and
pin
boom
hinge
pin
locking plates (3), two new Iockwashers
(4), and two hexagon capscrews (5)
securing two lower hinge headless straight
pins (2).
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