TM 5-4930-244-14
NOTE
Inspect cylinder for excessive wear. If worn or scored, it should be replaced.
(7)
Place cap (6) and assembled parts in vise. Using a drift pin and hammer, unscrew cylinder (9). Remove
steel washer (10) and spring (11), from cap (6). Repeat for other cap.
(8)
Unscrew eyebolt (12) from insert assembly (13).
(9)
Unscrew plug and insert assembly (13) and remove o-ring (14). Discard o-ring (14).
CAUTION
When removing upper trip-rod nut, DO NOT scratch chrome finish on rod or part
will be rendered useless.
NOTE
Watch for falling parts from bottom of body and stop assembly.
(10)
Lift shuttle (15), and with wrench, hold the trip rod (16) at the shoulder. Loosen upper trip-rod nut
(17)
Unscrew upper trip-rod nut (17) from the trip rod (16)
(11)
Unscrew eight stop nuts (18) securing valve body and stop assembly (3) to cylinder head and plug
assembly (19).
(12)
Lift valve body and stop assembly (3) up and off eight tie rods (20).
(13)
Remove shuttle (15), plungers (21) and toggles (22).
(14)
Pull tube (23) from cylinder head and plug assembly (19).
(15)
Remove o-rings (24) from tube (23). Discard o-rings (24).
(16)
Lift cylinder (25) from cylinder head and plug assembly (19). Piston rod (26), trip rod (16), and o-ring (27)
will come off with cylinder (25). Discard o-ring (27).
(17)
Remove slide valve (28).
(18)
Unscrew four hex head - socket screws (29) with four lockwashers (30), and remove two valve guide and
plug assembly (31), two stops (32), valve seat (33) and gasket (34). Discard four lockwashers (30) and
gasket (34).
(19)
Remove retaining ring (35), washer (36) and block "V" packing (37) from underside of valve body and stop
assembly (3). Discard block "V" packing (37).
(26)
Lift o-ring (38) from cylinder head and plug assembly (19). Discard o-ring (38).
(21)
Unscrew three hex head - socket screws (39) and remove three steel washers (40) and packing retainer
(41), from bottom of body (42). Pull two o-rings (43) from packing retainer (42). Discard two o-rings (43).
(22)
Grip piston retainer (44) in vise and loosen piston nut (45). Unscrew piston rod (26) with piston nut (45)
from piston retainer (44).
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