TM-9-2350-311-34-2
CAB, ARMAMENT, SIGHTING AND FIRE CONTROL, ELEVATING AND TRAVERSING SYSTEMS AND ASSOCIATED COMPONENTS HOWITZER, MEDIUM, SELF-PROPELLED, 155MM
TECHNICAL MANUAL; DIRECT AND GENERAL SUPPORT MAINTENANCE MANUAL
SEPTEMBER 1994
TM-9-2350-311-34-2 - Page 3 of 552
TM 9-2350-311-34-2
CARBON MONOXIDE POISONING CAN BE DEADLY
Carbon monoxide is a colorless, odorless, deadly poisonous gas, which, when breathed, de-
prives the body of oxygen and causes suffocation. Exposure to air contaminated with carbon
monoxide produces symptoms of headache, dizziness, loss of muscular control, apparent
drowsiness, coma, permanent brain damage, or even death from severe exposure.
Carbon monoxide occurs in the exhaust fumes of fuel-burning heaters and internal-combustion
engines and becomes dangerously concentrated under conditions of inadequate ventilation.
The following precautions must be observed to ensure the safety of personnel whenever the
personnel heater, main, or auxiliary engine of any vehicle is operated for maintenance purposes
or tactical use.
Do not operate heater or engine of vehicle in an enclosed area unless it is adequately venti-
lated.
Do not drive any vehicle with inspection plates, cover plates, or engine compartment doors re-
moved unless necessary for maintenance purposes.
Be alert at all times during vehicle operation for exhaust odors and exposure symptoms. If either
are present, immediately ventilate personnel compartments. If symptoms persist, remove af-
fected personnel from vehicle and treat as follows: expose to fresh air; keep warm; do not per-
mit physical exercise; and if necessary, administer artificial respiration.
THE BEST DEFENSE AGAINST CARBON MONOXIDE
POISONING IS ADEQUATE VENTILATION.
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