2-28. MAINTENANCE OF BOOM AND WINCHCONTROL CYLINDERS AND AT-
TACHING PARTS AND BOOM CONTROL CYLINDER ASSEMBLY (CONT).
Use hoist with minimum lifting
capacity of 2000 lb (908 kg) to pre-
vent injury to personnel and damage
Another M578 Recovery Vehicle or
M88A1 Recovery Vehicle may be
used, if available, for lifting.
Lift boom winch control cylinder assem-
bly (4) and move to cab door.
Remove sling. Reset sling around boom
winch control cylinder assembly (4) from
outside of cab door.
Lift boom winch control cvlinder assem-
bly (4) through cab door and lower to
Disassembly procedures are written
and illustrated for one boom winch
control cylinder assembly but apply
1 Remove two machine thread plugs (1) and
two preformed packings (2) from cylinder
boom barrel (3).
2 Remove cotter pin (4) from cylinder boom
3 Remove four socket head capscrews (5)
from boom cylinder head externally
threaded ring (6).