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TM 9-2320-364-34-4
28-12
28-3. LIFT CYLINDER REPAIR (CONT).
(5)
Remove two backup rings (11), preformed
packing (12), and (13) and backup ring (14)
from holding valve (1). Discard preformed
packings and backup rings.
Cylinder must not be dented
when held in vise, or leakage and
improper operation may result.
(6)
Remove setscrew (15) from cylinder
barrel (16) and place barrel in chain vise
with wooden blocks.
NOTE
Position drain pan under cylinder.
(7)
With the aid of an assistant, hold cylinder
barrel (16) while unscrewing cylinder
head (17).
(8)
With the aid of an assistant, hold cylinder
barrel (16) while pulling cylinder head (17)
out 5 in. (127 mm).
(9)
With the aid of an assistant, remove cylinder
rod (18) from cylinder barrel (16).
NOTE
Note position of hydro lock seals
before removal.
(10)
Remove split seal (19), piston seal
assembly (20) and split seal (19) from
piston (21). Discard seal and piston seal
assembly.
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