TM 5-4310-393-14CHAPTER 3OPERATOR MAINTENANCE INSTRUCTIONSPageSection ILubrication Instructions ................................................................................................. 3-1Section IIService Upon Receipt of Material ................................................................................... 3-7Section IIITroubleshooting Procedures .......................................................................................... 3-9Section IVOperator Maintenance Procedures................................................................................ 3-14Section I. LUBRICATION INSTRUCTIONSParagraphPage3-1General ........................................................................................................................ 3-13-2Oil Viscosity ................................................................................................................. 3-13-3Lubrication of Engine ..................................................................................................... 3-13-4Filling/Checking Engine Oil ............................................................................................ 3-23-5Lubrication of Compressor ............................................................................................. 3-33-6Oil Capacities/Specifications .......................................................................................... 3-53-7Maintenance on a New Engine and Compressor.............................................................. 3-53-1. GENERAL.The objective of this section is to present the operator with engine and compressor lubrication instructions Properlubrication is essential to operating life of any machine Always check oil levels of both the engine and compressor beforestarting either unit.3-2. OIL VISCOSITY.The viscosity of oil is greatly influenced by ambienttemperatures at the site of operation. Figure 3-1 showsthe viscosity of oil recommended for use in the modelCAPITANO-PD When ambient temperatures fall belowthe limit of the oil selected, the starting performance ofthe compressor unit will be affected, but no equipmentdamage will be caused. Since a too viscous oil cancause starting difficulties, the choice of viscosity gradesduring winter operation should be governed by theambient temperature prevailing at the time of enginestarting. Oil changes resulting from ambienttemperature changes can be avoided by usingmultigrade oils All viscosities are subject to oil changeintervals recommended in Table 2-2.3-3. LUBRICATION OF ENGINE.The engine is splash lubricated. A scooper,incorporated into the connecting rod cap, forces oilthrough drilled passages to lubricate the cylinder andconnecting rod bearings.Figure 3-1. Recommended Viscosity's3-3.1. ENGINE OIL CHANGE.The engine oil should be changed regularly according to the PMCS schedule (Table 2-2)3-1
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