TM 10-4320-310-144-20. REPLACE MUFFLER (Continued)INSTALLATION:1Install new gasket (10) and muffler (9).2Install two nuts (8). Tighten securely.3Install protective screen (7).4Install cleanout plug (6).5Install two washers (5) and two screws (4).6Install heat shield (3).7Install two washers (2) and two screws (1).OPERATIONAL CHECK:Touching exhaust system during test can cause severeburns.Exposure to exhaust gases produces symptoms ofheadache, dizziness, loss of muscular control, drowsiness,or coma. Brain damage or death can result from severeexposure.Fumes from engine become concentrated with poorventilation. Operate engine in a ventilated area only.While running engine, be alert for fumes. Keep areaventilated. If someone is overcome, expose to fresh air;keep warm and still; give artificial respiration if needed.Seek medical attention. Administer oxygen, if available.GOOD VENTILATION IS THE BEST DEFENSE AGAINSTEXHAUST POISONING.Start engine and observe muffler (9) for leaks and/or rattles. Tighten screws (1 and 4) and nuts (8) as necessary toprevent rattles. If muffler leaks, replace it.4-32
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