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TM 9-2320-364-34-4
28-4
28-2. ERECTION CYLINDER REPAIR (CONT)
(7)
Remove backup ring (16), preformed
packing (17), two backup rings (18) and
preformed packing (19) from holding valve
(11). Discard preformed packings and
backup rings.
(8)
Repeat Step (7) for remaining holding valve
(11).
(9)
Remove setscrew (20) from rod end (15).
Cylinder must not be dented when held in vise, or leakage and improper operation may result.
(10)
Position erection cylinder (3) in chain vise with wooden blocks.
(11)
Remove rod end (15) from cylinder rod (21).
(12)
Remove six screws (22) and retaining plate (23) from erection cylinder (3).
(13)
Remove seal (24) from retaining plate (23).
NOTE
Weld head may have to be reinstalled to apply leverage while turning end cap.
Place drain pan under cylinder.
(14)
Pull cylinder rod (21) and cylinder head (25) from erection cylinder (3). Remove end cap from rod.
(15)
Remove preformed packing (26) and backup ring (27) from cylinder head (25). Discard preformed
packing.
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