LHS DOES NOT OPERATE OR OPERATES SLOWLY. (Cont) -726250461

TM 9-2320-364-34-1

The LHS hydraulic system operates at oil pressures up to 3675 psi (25,339 kPa). Never disconnect any

hydraulic line or fitting without first dropping pressure to zero. Failure to comply may result in serious

injury or death to personnel.

Fuel and oil are slippery and can cause falls. To avoid injury, wipe up spilled fuel or oil with rags.

FLOWMETER TEST

(1) Disconnect pressure hose 2777

female quick disconnect from LHS

control box male quick disconnect.

(2) Connect adapter hose of same size

to hose 2777.

(3) Connect adapter hose of same size

to LHS control box male quick

disconnect.

(4) Connect flowmeter IN port to

adapter hose connected to

hose 2777.

(5) Connect flowmeter OUT port to

adapter hose connected to LHS

control box male quick disconnect.

(6) Completely open flowmeter load

valve.

(7) Set flowmeter to high.

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

(9) Set hydraulic selector switch to

AUTO position.

(10) Raise engine speed to full

throttle and observe flowmeter.

(a) If 28 to 32 gpm (106 to 121 lpm)

are not present, perform Steps

(11) and (15) below and go to

Step 5 of this Fault.

(b) If 28 to 32 gpm (106 to 121 lpm)

are present, perform Steps (11)

and (15) below and go to

Step 6 of this Fault.

(11) Set hydraulic selector switch to OFF

position.

(12) Turn OFF ENGINE switch.

(13) Remove adapter hose 2777 from

female quick disconnect.

(14) Remove adapter hose 2777 from

LHS control box male quick

disconnect.

(15) Connect quick disconnect

hose 2777.