TM 10-4320-310-143-6.CLEANING OR REPLACING AIR FILTER (Continued)3Install sealing washer (2) and wing nut (1).4Hand tighten wing nut as necessary to make sure the air filter assembly is secure and vibration free.5Reset restriction indicator (1).OPERATIONAL CHECK:Muffler and related components get hot enough during pumpoperation to cause severe burns. Avoid contact with mufflerand related components during checks described in this text.Exposure to exhaust gases produces symptoms of headache,dizziness, loss of muscular control, drowsiness, or coma.Brain damage or death can result from severe exposure.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; keepwarm and still; give artificial respiration if needed. Seekmedical attention. Administer oxygen, if available.GOOD VENTILATION IS THE BEST DEFENSEAGAINST EXHAUST POISONING.1Start engine and observe air cleaner assembly and restriction indicator (1) for looseness, rattles, or leaks.Tighten.2If red band is visible in window of restriction indicator (1), shut down engine.3Recheck installation and air filter element. Reset restriction indicator (1).4Restart engine. If red band is still visible, notify unit maintenance.5Restart engine and check restriction indicator (1). If restriction indicator still shows red band, refer to unitmaintenance.3-9/(3-1 0 blank)
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