TM 9-4940-568-34
6-52
6-11. BOOM TELESCOPIC CYLINDER REPAIR (Continued)
(7) Install piston (11) on rod (2) with
setscrew (12).
(8) Install seal (10) and guide lock ring (9)
on piston (11).
(9) With help from assistant, install rod (2)
in telescopic cylinder (8).
(10) With help from assistant, position head
retaining plate (7) to telescopic cylinder
(8) with four screws (6).
(11) Tighten four screws (6) to 68 lb-ft (92
N.m).
(12) Repeat steps (1 through 11) on lower
cylinder.
NOTE
Perform steps (13) thru (16) for
lower cylinder only.
(13) Install three preformed packings (4) and
backup rings (3) on cartridge holding
valve (1).
(14) Position cartridge holding valve (1) on
rod (2).
(15) Tighten cartridge holding valve (1) to
50-55 lb-ft (68-75 N.m).
(16) Install plug (5) in rod (2).
END OF TASK
Follow-On Maintenance
Install boom telescopic
cylinder (para 3-15).
