CRANE DOES NOT SWING COUNTER CLOCKWISE (CCW). (Cont) -726250627

TM 9-2320-364-34-1

High pressure hydraulics [oil under 3,000 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.

PRESSURE TEST

(1) Disconnect hose from outboard

(taller) elbow at left of four valve

bank. Discard preformed packing.

(2) Disconnect hose from inboard

(shorter) elbow at left of four valve

bank. Discard preformed packing.

(3) Connect adapter hose to flowmeter

IN port.

(4) Connect IN port adapter hose with

preformed packing to inboard

(shorter) elbow.

(5) Connect adapter hose to flowmeter

OUT port.

(6) Connect OUT port adapter hose

with preformed packing to crane

hose disconnected from inboard

(shorter) elbow.

(7) Connect hose to outboard (taller)

elbow.

(8) Start engine (TM 9-2320-364-10).

(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) Hold SWING control lever in CCW

position.

(a) If a minimum of 1800 psi

(12,411 kPa) are not present,

perform Steps (13) through (18)

below and replace relief valve at

rear (left) side of swing motor

valve assembly (Para 16-19).

(b) If 1800 psi (12,411 kPa) or more

are present, perform Steps (13)

through (18) below and go to

Step 3 of this Fault.

(13) Set crane POWER switch to

OFF position.

(14) Set hydraulic selector switch to OFF

position.

(15) Turn OFF ENGINE switch.

(16) Disconnect hose from outboard

(taller) elbow on four valve bank.

Discard preformed packing.

(17) Disconnect adapter hoses from

elbow and crane hose. Discard

preformed packings.

(18) Connect crane hoses with

preformed packing to elbows.

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