TM 5-4320-302-144-20.EXHAUST ELBOW AND GUARD (CONT)Location/ItemActionRemarksTESTWARNINGTouching exhaust system during test can cause severe burns.Carbon monoxide is a colorless, odorless, deadly poisonous gas which, whenbreathed, deprives the body of oxygen and causes suffocation. Exposure to aircontaminated with carbon monoxide produces symptoms of headache, dizziness, lossof muscle control, or apparent drowsiness. Coma, permanent brain damage, or deathcan result from severe exposure.Carbon monoxide occurs in the exhaust fumes of internal combustion engines andbecomes dangerously concentrated under conditions of inadequate ventilation.Observe the following safety precautions whenever the engine is running:Operate engine in a ventilated area only.Do not idle the engine for long periods without maintaining adequate ventilation.Be alert at all times for exhaust odors and exposure symptoms.Be aware: the field protective mask for chemical biological radiological (CBR)protection will not protect you from carbon monoxide poisoning.Expose victims to fresh air, keep warm, and do not permit physical exercise. Forartificial respiration, refer to FM21-11. Seek medical attention. Administer oxygen, ifavailable.GOOD VENTILATION IS THE BEST DEFENSE AGAINST EXHAUST POISONING.Priming discharge mixture of water and exhaust gases may cause severe burns orinjury. Wear gloves and safety glasses when priming pump.Stand clear of venturi during priming.CAUTIONPrime the centrifugal pump as soon as possible after engine starts. Rotation ofimpeller without water in volute will damage pump components.12. ExhaustStart engine and observe components for leakselbow andand/or looseness or rattles. Tighten mounting hard-guardware as necessary.4-104
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