TM 9-2330-379-14&PCHAPTER 4UNIT MAINTENANCEOVERVIEWThis chapter contains all the maintenance authorized to be performed by unit maintenance.PageSection ILubrication Instructions ..................................................................................4-1Section IIRepair Parts; Special Tools; Test, Measurement, andDiagnostic Equipment (TMDE); and Support Equipment .........................4-7Section IIIService Upon Receipt ....................................................................................4-7Section IVUnit Preventive Maintenance Checks and Services (PMCS).........................4-9Section VUnit Troubleshooting Procedures ..................................................................4-16Section VICleaning and Inspection Instructions .............................................................4-41Section VIIElectrical System Maintenance ......................................................................4-43Section VIIISteering System Maintenance .......................................................................4-62Section IXBrake System Maintenance ...........................................................................4-79Section XHub and Brake Drum maintenance ...............................................................4-145Section XIFrame and Towing Attachment Maintenance ................................................4-151Section XIISuspension System Maintenance..................................................................4-167Section XIIIAccessory Item Maintenance.........................................................................4-176Section XIVHydraulic Lift System Maintenance................................................................4-182Section XVPreparation for Storage or Shipment .............................................................4-191Section I LUBRICATION INSTRUCTIONSLubrication Instructions .....................4-1Lubrication Chart ....................................4-2LUBRICATION INSTRUCTIONSGeneralKeep all lubricants in closed containers and store in a clean, dry place, away from external heat.Keep container covers clean and allow no dust, dirt, or other foreign material to mix with thelubricants. Keep all lubrication equipment clean and ready for use.CleaningKeep all external parts not requiring lubrication free of lubricants. Before lubricating the equipment,wipe all lubrication points free of dirt and grease. Clean all lubrication points after servicing toprevent accumulation of foreign matter. Lubrication IntervalService the lubrication points at the proper intervals as specified in the lubrication chart. Theintervals specified are based on operation under normal conditions. Modification of therecommended intervals may be required under unusual operating conditions.4-1
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