TM 9-4940-568-34
3-54
3-15. BOOM MID SECTION AND TELESCOPIC CYLINDER REPLACEMENT/
ADJUSTMENT (Continued)
(6) Install two wear pads (12) in outer end
of boom base section (6).
(7) Apply grease to wear pads (12).
(8) Extend telescopic cylinder (3) base
shaft fully and fly section approximately
two feet.
WARNING
To prevent personal injury, ex-
treme care must be taken to prop-
erly handle heavy overhead ob-
jects. Make sure all slings and
straps are safe to use and are se-
cured properly. Make sure there
are no obstacles in the way. Keep
clear of all suspended loads.
(9) Attach lifting device to telescopic
cylinder (3) and install in boom mid
section (9).
(10) Apply sealing compound to threads of
screw (10).
(11) Position cylinder retainer bar (11) in
boom mid section (9) with screw (10).
(12) Tighten screw (10) to 72-78 lb-ft (98-106
N.m).
(13) Attach lifting device and guide line to
boom mid section (9) and telescopic
cylinder (3).
(14) With help from assistant, install boom
mid section (9) in boom base section (6)
as far as possible.
(15) Remove lifting device and guide rope.
