FAN DOES NOT OPERATE AT HIGH SPEED. (Cont) -726250315

TM 9-2320-364-34-1

Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry or tools contact positive electrical

circuits, a direct short may result. Damage to equipment, injury or death to personnel may occur.

VOLTAGE TEST

(1) Loosen screw and disconnect

solenoid connector from high speed

fan lockout solenoid valve.

(2) Set multimeter select switch to

volts dc.

(3) Connect positive (+) multimeter lead

to wire 1733 at connector, terminal 2.

(4) Connect negative (- ) multimeter lead

to a known good ground.

(5) Check to ensure hydraulic selector

switch is OFF.

(6) Turn ON ENGINE switch

(TM 9-2320-364-10).

(a) If 22 to 28 vdc are not present,

wire 1733 is OK. Turn OFF

ENGINE switch and go to Step 6

of this Fault.

(b) If 22 to 28 vdc are present,

turn OFF ENGINE switch and

repair wire 1733 (see schematic

Fig 2-3) or replace chassis wire

harness (Para 6-29).