WARNING ASPHYXIATION DANGER

TM 55-1905-217-12

Volatile materials will not be brought aboard; electrical circuits will not be energized: fuel tanks will not be topped off; and

engines will not be started before C02 fire fighting equipment is available and operative.

Observe NO SMOKING rules when refueling. Do not work on live circuits. Tag circuit and warn other personnel not to

energize the circuit. Never use a blow torch or other similar means for heating fuel or oil lines.

Prior to cutting or welding on the ramp, remove drain plugs on both sides of the ramp and check if ramp interior is primer

coated. If primer coated, flush thoroughly with steam, carbon dioxide, or water. Do not reinstall drain plugs until the

cutting and/or welding operation is completed. Failure to take this precaution may result in explosion of accumulated

primer vapors.

WARNING

ASPHYXIATION DANGER

Be sure engine room ventilators are open when operating the engine(s). The engine exhaust gases contain carbon

monoxide, which is a colorless, odorless, and poisonous gas.

When working inside the hydraulic oil supply tank, a portable-type circulating blower should be used to prevent vapor

accumulation. For extended work periods inside the tank, an air line tube respirator should be worn. Station an observer

outside tank in case worker is overcome by fumes.

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