HOIST DOES NOT RAISE. (Cont) -726250755

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

(2) Set WINCH/CRANE switch to

CRANE position.

(3) Set hydraulic selector switch to

CRANE/SRW position.

(4) Turn ON crane POWER

switch.

(5) Observe flowmeter to compare

gpm (lpm) with gpm (lpm) measured

in Step (6).

(6) Hold HOIST control lever in UP

position.

(a) If an increase in flow is not

measured, fault not corrected.

Perform Steps (7) through (12)

below and notify supervisor.

(b) If an increase in flow is

measured, perform Steps (7)

through (12) below and replace

hoist relief valve on four valve

bank (Para 16-26).

(7) Set crane POWER switch to OFF

position.

(8) Set hydraulic selector switch to OFF

position.

(9) Turn OFF ENGINE switch.

(10) Disconnect adapter hose from

hose 2918. Discard preformed

packing.

(11) Disconnect adapter hose from

return line filter. Discard preformed

packing.

(12) Connect hose 2918 to adapter.

(13) Install cover with screws, washers,