TM 9-2350-267-10OPERATING VENTILATION BLOWER - Continued2.3.4.To pull in fresh air, pull down airduct control handle (2) in driv-er’s compartment. Turn VEN-TILATOR BLOWER switch (3)to INTAKE.To clear out smoke, pull down on air duct control handle (2) and turn VEN-TILATOR BLOWER switch (3) to EXHAUST.If automatic fire extinguisher system activates, ventilator blower turns toexhaust mode. Open vent after extinguisher discharge.2-193
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