TM 5-2590-512-13&P CHAPTER 4 UNIT MAINTENANCE SECTION I  REPAIR PARTS AND SPECIAL TOOLS (RPSTL) Para. Page 4-1 Spare Parts 4-2 4-2 Special Tools 4-2 4-3 Repair Parts 4-2 SECTION II  UNIT PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) 4-4 Unit PMCS Procedures 4-2 4-5 General 4-2 4-6 Explanation of Columns 4-2 4-7 Leakage Definitions 4-2 4-8 PMCS Table 4-3 SECTION III  UNIT TROUBLESHOOTING PROCEDURES 4-9 General 4-4 4-10 Explanation Of Columns 4-4 4-11 Unit Troubleshooting 4-4 SECTION IV  INSTALLATION OF KIT 4-12 Introduction 4-6 4-13 Unpacking Earth Auger Assembly Kit and Installation on SEE vehicle 4-6 4-14 Preparation for Operation of Earth Auger Assembly 4-13 4-15 Preparation for Operation of Backhoe Bucket 4-15 SECTION V  UNIT MAINTENANCE PROCEDURES 4-16 Universal Connecting Link Replacement 4-17 4-17 Front Safety Cover Replacement 4-18 4-18 Rear Safety Cover Replacement 4-19 4-19 Chain Adjustment 4-20 4-20 Chain Replacement 4-21 4-21 Chain Repair 4-22 4-22 Motor Sprocket Replacement 4-23 4-23 Motor Plate Replacement 4-24 4-24 Hydraulic Motor Replacement 4-25 4-25 Driven Sprocket Replacement 4-26 4-26 Output Shaft Replacement 4-27 4-27 Shaft Bearing Adjustment 4-28 4-28 Shaft Bearing and Seal Replacement 4-29 4-29 Shaft Bearing and Seal Service 4-30 4-30 Elbow Replacement 4-31 4-31 Hose Replacement 4-32 4-32 Drive Chain Lubrication 4-33 4-33 Main Housing Replacement 4-34 4-1