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Page Title:
BOOM DOES NOT TELESCOPE OR TELESCOPES SLOWLY. (Cont) |
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 TM 9-2320-364-34-1
Cable must be held when disconnected and
allowed to retract slowly by hand. Failure
to do so may result in equipment damage.
OPERATION TEST
(1) Attach lifting device to telescope
cylinders.
(2) Remove screw, OSS cable end,
spacer, and washer from retaining
pin and carefully let cable retract.
(3) Remove two cotter pins from
retaining pin and retaining pin from
cylinder rod and boom on OSS side
of boom. Discard cotter pins.
(4) Loosen two screws enough to allow
cylinder rod to be pulled out away
from boom.
(5) Remove cotter pin from retaining pin
and retaining pin from cylinder rod
on other side of boom.
(6) Loosen two screws enough to allow
cylinder rod to be pulled out away
from boom.
(7) Swing both telescope cylinders out
enough that cylinder rods can be
extended without contact truck.
(8) Start engine.
(9) Set WINCH/CRANE rocker switch to
CRANE position.
(10) Set hydraulic selector switch to
CRANE/SRW position.
(11) Turn ON crane POWER
switch.
(12) Operate telescope cylinders using
TELE control lever.
(a) If one cylinder does not operate
or operates slowly, cylinder
assembly is faulty. Replace
telescope cylinder (Para 16-10).
(b) If both cylinders operate equally,
cylinders are OK.
(13) Set crane POWER switch to
OFF position.
(14) Set hydraulics selector switch to
OFF position.
(15) Turn OFF ENGINE switch.
(16) Install cylinder rod on OSS side of
boom with retain pin and cotter pin.
(17) Install washer, spacer, and OSS
cable end with screw.
(18) Tighten two screws.
(19) Install other cylinder rod with
retaining pin and cotter pin.
(20) Tighten two screws.
(21) Remove lifting device.
2-583
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