TM 9-2350-238-34-22-28. MAINTENANCE OF BOOM AND WINCH–CONTROL CYLINDERS AND AT-TACHING PARTS AND BOOM CONTROL CYLINDER ASSEMBLY (CONT).REI10VAL (CONT)111213Use hoist with minimum liftingcapacity of 2000 lb (908 kg) to pre-vent injury to personnel and damageto equipment.NOTEAnother M578 Recovery Vehicle orM88A1 Recovery Vehicle may beused, if available, for lifting.Lift boom winch control cylinder assem-bly (4) and move to cab door.Remove sling. Reset sling around boomwinch control cylinder assembly (4) fromoutside of cab door.Lift boom winch control cvlinder assem-bly (4) through cab door and lower toground.NOTEDisassembly procedures are writtenand illustrated for one boom winchcontrol cylinder assembly but applyto both.1 Remove two machine thread plugs (1) andtwo preformed packings (2) from cylinderboom barrel (3).2 Remove cotter pin (4) from cylinder boombarrel (3).3 Remove four socket head capscrews (5)from boom cylinder head externallythreaded ring (6).2-88
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