TM 9-2320-360-10
b. Windshield Defrost Operation
(1) Slide DEF/CAB control (1) to DE
(2) Set FRONT fan switch (2) to speed 1, 2, or 3.
(3) Slide OFF/HEAT control (3) to the right until heat is at desired temperature.
(4) Slide OFF/HEAT control (3) to left to turn heat off.
(5) Set FRONT fan switch (2) to OFF if desired.
(1) Set REAR fan switch (4) to speed 1, 2, or 3.
(2) Turn REAR fan switch (4) to OFF position when exhaust fan operation is not desired.
Change 2 2-145 (2-146 blank)