FAN DOES NOT OPERATE AT HIGH SPEED. (Cont) -726250311

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.

NOTE

Only remove center screw on engine side of LHS

control box cover.

VOLTAGE TEST

(1) Remove eight screws, lockwashers,

washers and left side noise

panel. Discard lockwashers.

(2) Remove four screws, lockwashers

and LHS control box cover.

Discard lockwashers.

(3) Loosen screw and disconnect

solenoid connector.

(4) Set multimeter select switch to

volts dc.

(5) Connect positive (+) multimeter lead

to solenoid connector, terminal 1.

(6) Connect negative (- ) multimeter lead

to a known good ground.

(7) Turn ON ENGINE switch

(TM 9-2320-364-10).

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

wire 1734 is OK. Turn OFF

ENGINE switch and go to Step 4

of this Fault.

(b) If 22 to 28 vdc are present,

turn OFF ENGINE switch and

repair wire 1734 (see schematic

Fig 2-3) or replace chassis wire

harness (Para 6-29).