INTERVALTM 5-4320-302-14Table 2-2. Operator/Crew Preventive Maintenance Checks and Services-ContinuedBBEFORE OPERATIONAAFTER OPERATIONMMONTHLYDDURING OPERATIONWWEEKLYBDAWM27Exhaust Silencer, Exhaust Elbow, 1-1/2-Inch Nipple,PersonnelExhaust Primer Assembly, and Muffler Guard.hazard existsas a result ofescaping ex-WARNINGhaust gases orengine exhaustis restrictedExhaust silencer and related components getcausing exces-hot enough during pump operation to causesive back pres-severe burns. Avoid contact with exhaustsure.silencer and related components duringchecks described in this text.Visually inspect muffler guard for excessive vibrationduring operation.Listen for leaking exhaust gases. Identify leakingcomponents.An exhaust valve thatfails to open easilycan cause excessiveexhaust back pressure,which can damage theengine.Visually inspect operation ofexhaust valve. Be sure thatit does not bind during en-gine operation. Be sure thatexhaust gases cause it toopen smoothly.ITEMNO.ITEM TO BE INSPECTEDPROCEDUREEQUIPMENT IS NOTREADY/AVAILABLE IF:2-43
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