TM-9-2350-247-10 Operator Manual M548A1 M548A3 Tracked Cargo Carrier Download
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TM 9-2350-247-10 OPERATE NBC AIR FILTER SYSTEM (M548A3) — Continued 0053 00 WARNING Under arctic conditions, danger of frostbite exists. Put on protective mask, but do not connect filtered air hose breakaway socket to protective mask canister unless carrier interior temperature is above 20 F (-7 C). NOTE Typically the M548A3 will have only four NBC stations. However, M548A3 vehicles converted from M7 30 vehicles m ay have five NBC stations. 6. Pull down sharply to remove air hose from orifice connector assembly. Hold your hand over air hose and feel if air flow is warm. If air is too cold to breathe safely, turn heater control knob to right (clockwise). NOTE It may take 15 to 20 minutes for air to heat to maximum temperatures. 7. When air is warm enough to breathe safely, connect air hose to canister of M42 protective mask. 0053 00-4 Change 1 º º