FAN DOES NOT OPERATE AT HIGH SPEED. (Cont) -726250309

TM 9-2320-364-34-1

High pressure hydraulics [oil under 3675 psi (25,339 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 drain pan to catch leaking hydraulic oil.

FAN OPERATION TEST

(1) Disconnect hose 2777 female quick

disconnect from LHS control box and

listen for change in fan speed.

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

(a) If fan does not operate at high

speed, perform Steps (3) and (4)

below and go to Step 5 of this

Fault.

(b) If fan operates at high speed,

perform Steps (3) and (4) below

and go to Step 3 of this Fault.

(3) Turn OFF ENGINE switch.

(4) Connect hose 2777 to LHS

control box.