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Page Title:
CRANE DOES NOT SWING CLOCKWISE (CW). (Cont) |
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 TM 9-2320-364-34-1
High pressure hydraulics [oil under 3000 psi
(20,685 kPa) pressure] operate this equipment.
Refer to vehicle operator and maintenance
manuals for hydraulic oil pressure. Never
disconnect any hydraulic line or fitting without
first dropping pressure to zero. Failure to comply
may result in injury to personnel.
Fuel and oil are slippery and can cause falls.
To avoid injury, wipe up spilled fuel or oil
with rags.
NOTE
Use a drain pan to catch leaking hydraulic oil.
OPERATION TEST
(1) Remove four nuts, lockwashers,
washers and nuts and cover.
Discard lockwashers.
(2) Tag, mark and disconnect two
hoses from two elbows at left of four
valve bank. Discard preformed
packings.
(3) Connect each removed hose with
preformed packing to the elbow the
other was removed from (cross
them).
(4) Start engine (TM 9-2320-364-10).
(5) Set WINCH/CRANE switch to
CRANE position.
(6) Set hydraulic selector switch to
CRANE/SRW position.
(7) Set crane POWER switch to
ON position.
(8) Swing crane CW by moving SWING
control lever to CCW position.
(a) If crane does not swing, perform
Steps (9) through (13) below
and go to Step 2 of this Fault.
(b) If crane does swing, perform
Steps (9) through (11) below
and replace SWING valve on
four valve bank (Para 16-26).
(9) Set crane POWER switch to
OFF position.
(10) Set hydraulic selector switch to OFF
position.
(11) Turn OFF ENGINE switch.
(12) Disconnect two hoses from elbows.
Discard preformed packings.
(13) Install hoses with preformed
packings on elbows using tags and
marks to install correctly.
2-533
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