ItemNo.13141516TM 5-4320-200-13&PTable 4-1 Unit Preventive Maintenance Checks and Services (Cont.)IntervalSemiannuallySemiannuallySemiannuallySemiannuallyItem To BeChecked Or Serv-icedSUCTIONVALVESPARKPLUGAND CABLECONTACTPOINTS ANDCONDENSERCRANKCASEProcedureCheck suction valve(1) forproper operation and leaks.a. Check spark plug forcracked insulation or burnedelectrodes. Clean and setpIug gap (para 4-22).b. Check spark plug cablefor loose connections anddamaged insulation.Check for pitted or burnedpoints. Clean and set pointgap (para 4.31)Check vent assembly for dirtor damage.Not Fully Mission Capa-ble Ifsuction valve leaks, hascracks or is loose.Spark plug has burnedelectrodes or crackedinsulation.Spark plug cable isloose or insulation isdamaged.Point or burned orpitted. Condenser de-fective.Vent assembly dama-ged or dirty.Change 54-2.5
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