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 TM 55-1905-220-14-8
Should a person be overcome in a space which lacks oxygen because of high concentrations of R-12 being
present, treat such person the same as for suffocation, i.e., through artificial respiration.
When cutting with a torch, or when welding, always station fire watches, ready with fire extinguishers, in the
vicinity on both sides of the plate that is being cut or welded.
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.
When refueling, shut down the electrical system. Observe the no smoking rule. Do not permit anyone to
operate tools or equipment which may produce sparks near the refueling operation. Sparks or fire may
ignite the diesel fuel and produce an explosion.
Fuel oil and other petroleum products are highly volatile in extreme heat. To minimize the possibility of
explosion, wipe up all spills at once, see that fuel lines and valves are not leaking and pump bilges
regularly.
Before attempting to remove any compressed air system lines or components, relieve air pressure from
system. Failure to do so may result in injury or possible death to maintenance personnel.
Before disconnecting a line in the hydraulic system, bleed the pressure from that portion of the line. Failure
to do so may result in injury or possible death to maintenance personnel.
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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