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 TM
9-2350-238-20-2
2-52.
MAINTENANCE
OF
BOOM
AND
WINCH,
BOOM,
PULLEY,
AND
RELATED
PARTS
(CONT).
REMOVAL
Make sure MASTER switch is OFF
before repairing electrical circuits.
Failure to observe this warning could
result in injury to personnel.
1 Disconnect
boom
floodlight
electrical
lead
(1).
2 Raise crane boom (2) until two lower
hinge headless straight pins (3) are clear
of cab to permit removal.
Sling boom as shown to prevent
unbalanced boom action which
could cause serious injury.
Use hoist with 2000 lb (908 kg)
minimum lifting capacity to pre-
vent injury to personnel and
damage to equipment.
NOTE
Another M578 Recovery Vehicle
or an M88A1 Recovery Vehicle, if
available, may be used for lifting.
3
Install sling to crane boom (2) as shown.
Attach sling to hoist of 2000 lb (908 kg)
minimum capacity and take out slack to
support
weight
of
crane
boom.
4 Remove
two
hexagon
head
capscrews
(4),
two Iockwashers (5), and nut and pin
boom
hinge
pin
locking
plate
(6)
securing
each of two upper hinge headless straight
pins (7).
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