TM 9-2320-280-10
2-18. DEFROSTER OPERATION (A2 VEHICLES)
To defrost windshield:
(1) Start engine (para. 2-10).
(2) Push fresh air intake lever (3) forward to close grille.
(3) Turn heater fan switch (4) "ON" to desired setting, HIGH" or "LOW."
(4) Position heater control knob (2) to desired setting.
(5) Push defroster control knob (1) in.
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