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Page Title: BOOM DOES NOT TELESCOPE IN OR TELESCOPES IN SLOWLY. (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.
FLOWMETER TEST
(1) Set crane POWER switch to
OFF position (TM 9-2320-364-10).
(2) Set hydraulics selector switch to
OFF position.
(3) Turn OFF ENGINE switch.
(4) Remove adapter hose from
outboard (taller) elbow. Discard
preformed packing.
(5) Connect adapter hose with
preformed packing to the crane
hose removed from inboard
(shorter) elbow.
(6) Install crane hose with preformed
packing on outboard (taller)
elbow.
(7) Open flowmeter load valve.
(8) Start engine.
(9) Set WINCH/CRANE switch to
CRANE position.
(10) Set hydraulic selector switch to
CRANE/SRW position.
(11) Set crane POWER switch to
ON position.
(12) Telescope boom in completely if
boom operates slowly.
(13) Hold TELE control lever in the IN
position.
(a)  If more than 0 gpm (0 lpm)
are present, perform Steps (14)
through (19) below and go to
Step 4 of this Fault.
(b)  If 0 gpm (0 lpm) are present,
perform Steps (14) through (19)
below and go to Step 3 of this
Fault.
(14) Set crane POWER switch to
OFF position.
(15) Set hydraulics selector switch to
OFF position.
(16) Turn OFF ENGINE switch.
(17) Tag, mark and disconnect crane
hose from outboard (taller) elbow.
Discard preformed packing.
(18) Disconnect adapter hoses from
elbow and crane hose. Discard
preformed packings.
(19) Connect two crane hoses with
preformed packings to elbows.

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