Chapter 1. INTRODUCTION - TM-5-4310-354-140012Figure 1-1. Model 6M125 rotary air compressor skid, left front, three-quarter view.Figure 1-2. Model 6M125 rotary air compressor, right rear, three-quarter view.Tabulated Data. - TM-5-4310-354-140015Torque DataFigure 1-3. Schematic wiring diagram.Table 1-1. Torque DataTable 1-1. Torque Data - ContinuedChapter 2. OPERATING INSTRUCTIONS - TM-5-4310-354-140020UnloadingFigure 2-2. Purging preserving oil from fuel injection pump.Table 2-1. Freezing Points, Composition, and Specific Gravities of Military Antifreeze MaterialsInstallation of Separately Packed ComponentsFigure 2-3. Instrument panel controls and instruments.Air cleaner restriction indicatorsFigure 2-4. Safety circuit switches.Engine water temperature safety switch.Figure 2-5. Air discharge service valves and safety valve.Operation Under Usual Conditions.Figure 2-6. Air compressor unit starting procedures (sheet 1 of 2).Figure 2-6. Air compressor unit starting procedures (sheet 2 of 2).Figure 2-7. Air compressor unit stopping procedure.Section II. OPERATION UNDER UNUSUAL CONDITIONS - TM-5-4310-354-140034Chapter 3. OPERATOR/CREW MAINTENANCE INSTRUCTIONS - TM-5-4310-354-140035Figure 3-1. Lubrication Order (Sheet 1 of 2) - TM-5-4310-354-140036Figure 3-1. Lubrication Order (Sheet 2 of 2) - TM-5-4310-354-140037Engine Lubrication - TM-5-4310-354-140038Oil Filter ServiceFigure 3-5. Compressor oil filter service.Section II. PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) - TM-5-4310-354-140041Table 3-1. Operator/Crew Preventive Maintenance Checks and Services - TM-5-4310-354-140042Table 3-1. Operator/Crew Preventive Maintenance Checks and Services - Continued - TM-5-4310-354-140043Table 3-1. Operator/Crew Preventive Maintenance Checks and Services - Continued - TM-5-4310-354-140044Table 3-1. Operator/Crew Preventive Maintenance Checks and Services - Continued - TM-5-4310-354-140045Radiator ServiceFigure 3-8. Fuel filter service.Drive Belt ServiceBattery ServiceSpeed Control Linkage ServiceAir Cleaner Service.Instrument Panel Lamp ServiceQuick Start Assembly Service - TM-5-4310-354-140053Engine Crankcase Breather ServiceTable 3-2. Operator/Crew Troubleshooting - TM-5-4310-354-140055Figure 3-17. Purging fuel system of air.Table 3-2. Operator/Crew Troubleshooting - TM-5-4310-354-140057ENGINE LACKS POWER - TM-5-4310-354-140058ENGINE HAS LOW OIL PRESSURE.ENGINE HAS LOW FUEL PRESSUREENGINE EXHAUST EXCESSIVELY BLUE OR WHITE.EXCESSIVE FUEL CONSUMPTION - TM-5-4310-354-140062ENGINE STOPS SUDDENLY - TM-5-4310-354-140063AIR COMPRESSOR IS OVERHEATINGEXCESSIVE COMPRESSOR OIL CONSUMPTION. - TM-5-4310-354-140065Figure 3-18. Storage battery, inspection and filling.Fuel Tank and Fuel Filter.Figure 3-19. Fuel tank filling. draining. and fuel filter replacement.Engine Oil Filter.Compressor Oil Filter.Quick Start Assembly.Chapter 4. ORGANIZATIONAL MAINTENANCE INSTRUCTIONS - TM-5-4310-354-140072Section II. MOVEMENT TO A NEW WORKSITE - TM-5-4310-354-140073Figure 4-1. Speed control linkage lubrication.Section V. PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)Table 4-1. Organizational Preventive Maintenance Checks and Services - TM-5-4310-354-140076Radiator Hose ServiceFigure 4-4. Fuel tank and fuel lines service.Drive Belt Service and Adjustment.Air Cleaner ServiceControls and Instruments ServiceQuick Start Assembly Service - TM-5-4310-354-140082Table 4-2. Organizational Troubleshooting - TM-5-4310-354-140083ENGINE CRANKS BUT FAILS TO START WHEN START BUTTON IS PRESSEDENGINE LACKS POWER. - TM-5-4310-354-140085ENGINE KNOCKS, DEVELOPS EXCESSIVE NOISE, OR VIBRATESENGINE OVERHEATINGENGINE EXHAUST EXCESSIVELY BLACK - TM-5-4310-354-140088EXCESSIVE FUEL CONSUMPTION - TM-5-4310-354-140089ENGINE STOPS SUDDENLY - TM-5-4310-354-140090AIR COMPRESSOR OVERHEATINGCOMPRESSOR NOT OPERATING TO FULL CAPACITY OR PRESSURETACHOMETER-HOURMETER ERRATICSection VII. MAINTENANCE OF EXHAUST MUFFLER GROUPFigure 4-9. Exhaust muffler group, removal and installation.Section VIII. MAINTENANCE OF BATTERY BOX GROUPFigure 4-10. Battery box group, removal and installation (sheet 2 of 2)Section IX. MAINTENANCE OF HOSE AND HOSE REELFigure 4-11. Hose reel assembly, disassembly and reassembly.Disassembly. - TM-5-4310-354-140100Section X. MAINTENANCE OF COMPRESSOR ENCLOSURE GROUPFigure 4-12. Exterior components on compressor enclosure, removal and installation.Figure 4-14. Engine overspeed shutdown switch, removal and installation.Figure 4-15. Engine and compressor air cleaner assemblies, removal and installation.Figure 4-16. Data and instruction plates, removal installation.Figure 4-17. Compressor enclosure group, disassembly and reassembly.Cleaning, Inspection, and Repair. - TM-5-4310-354-140107Section XI. MAINTENANCE OF RADIATOR AND OIL COOLER GROUPFigure 4-18. Radiator and oil cooler group, removal and installation.Figure 4-19. Radiator and oil cooler assembly, disassembly and reassembly.Reassembly. - TM-5-4310-354-140111Section XII. MAINTENANCE OF FUEL LINES, HOSES, AND FITTINGSSection XIII. MAINTENANCE OF AIR LINES, HOSES, AND FITTINGSFigure 4-21. Engine and compressor air intake lines, hoses, and fittings, removal and installation (sheet 1 of 2).Figure 4-21. Engine and compressor air intake lines, hoses, and fittings, removal and installation (sheet 2 of 2).Figure 4-22. Compressor control air hoses and fittings, removal and installation.Section XIV. MAINTENANCE OF ENGINE FUEL FILTER GROUPFigure 4-23. Engine fuel filter group, removal, disassembly, reassembly, and installation.Section XV. MAINTENANCE OF ENGINE ELECTRICAL GROUPAlternator Assembly.Figure 4-25. Alternator assembly removal and installation.Section XVI. MAINTENANCE OF ENGINE FUEL SYSTEM, COOLING SYSTEM, INTAKE, AND EXHAUST MANIFOLD GROUPFigure 4-26. Fuel injection nozzles, removal and installation.Figure 4-27. Fuel transfer pump, removal and installation.Cleaning and Inspection. - TM-5-4310-354-140125Figure 4-28. Fuel injection lines, removal and installation.Cooling Fan, Water Pump, and Thermostat.Figure 4-29. Cooling fan, water pump, and thermostat, removal and installation.Intake Manifold.Exhaust Manifold. - TM-5-4310-354-140130Water Temperature Sending Unit and Shutdown Switch.Section XVII. MAINTENANCE OF ENGINE ROCKER ARM GROUPSection XVIII. MAINTENANCE OF INSTRUMENT PANEL GROUPFigure 4-33. Instrument panel assembly, removal and installation.Air Cleaner Restriction Indicators.Figure 4-34. Instrument panel controls, instruments, and gauges, removal and installation (sheet 1 of 7).Receiver Pressure Gauge.Figure 4-34. Instrument panel controls, instruments, and gauges, removal and installation (sheet 2 of 7).Engine Oil Pressure Gauge.Figure 4-34. Instrument panel controls, instruments, and gauges, removal and installation (sheet 3 of 7).Engine Fuel Pressure Gauge.Figure 4-34. Instrument panel controls, instruments, and gauges, removal and installation (sheet 4 of 7).Ignition On-Off Switch.Figure 4-34. Instrument panel controls, instruments, and gauges, removal and installation (sheet 5 of 7).Control Cables.Figure 4-34. Instrument panel controls, instruments, and gauges, removal and installation (sheet 6 of 7).Engine Water Temperature Gauge.Figure 4-34. Instrument panel controls, instruments, and gauges, removal and installation (sheet 7 of 7).Pressure Switches.Figure 4-35. Safety switches, removal and installation (sheet 1 of 2).Engine Overspeed Switch.Figure 4-35. Safety switches, removal and installation (sheet 2 of 2).Fuel Injection Pump Solenoid.Section XIX. MAINTENANCE OF SPEED CONTROL LINKAGE GROUPFigure 4-37. Speed control linkage adjustment.Chapter 5. DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE INSTRUCTIONS - TM-5-4310-354-140156Table 5-1. Direct Support and General Support Troubleshooting - TM-5-4310-354-140157ENGINE CRANKS BUT IS HARD TO START OR FAILS TO STARTENGINE LACKS POWER - TM-5-4310-354-140159ENGINE HAS LOW OIL PRESSUREENGINE EXHAUST EXCESSIVELY BLACK - TM-5-4310-354-140161EXCESSIVE FUEL CONSUMPTION.COMPRESSOR IS NOISY.TACHOMETER-HOURMETER ERRATIC.Figure 5-1. Air line schematic diagram.Compressor Oil Cycle DiagramFigure 5-2. Compressor oil cycle schematic diagram.Fuel System DiagramTable 5-2. Repair and Replacement Standards - TM-5-4310-354-140169Table 5-2. Repair and Replacement Standards - Continued - TM-5-4310-354-140170Table 5-2. Repair and Replacement Standards - Continued - TM-5-4310-354-140171Table 5-2. Repair and Replacement Standards - Continued - TM-5-4310-354-140172Table 5-2. Repair and Replacement Standards - Continued - TM-5-4310-354-140173Table 5-2. Repair and Replacement Standards - Continued - TM-5-4310-354-140174Figure 5-4. Compressor oil separator assembly, removal and installation.Figure 5-5. Blowdown valve assembly, removal and installationAir Compressor Assembly. - TM-5-4310-354-140177Engine Assembly. - TM-5-4310-354-140178Figure 5-7. Engine assembly, removal and installation.Testing.Chapter 6. REPAIR OF AIR COMPRESSORFigure 6-1. Oil separator assembly, disassembly and reassembly.Cleaning, Inspection, and Repair. - TM-5-4310-354-140183Minimum pressure valve assembly.Oil Separator Element.Section II. BLOWDOWN VALVE ASSEMBLYFigure 6-4. Blowdown valve assembly, disassembly and reassembly.Cleaning, Inspection, and Repair. - TM-5-4310-354-140188Figure 6-5. Air pressure regulator assembly, disassembly and reassembly.Section III. OIL FILTER-THERMAL BYPASS VALVE ASSEMBLYFigure 6-6. Oil filter-thermal bypass valve assembly, removal and installation.Figure 6-7. Oil filter-thermal bypass valve assembly, disassembly and reassembly.Reassembly - TM-5-4310-354-140193Section IV. AIR COMPRESSOR ASSEMBLYFigure 6-8. Air compressor assembly, disassembly and reassembly.Disassembly - TM-5-4310-354-140196Figure 6-9. Drive end cover-rotor, disassembly and reassembly.Reassembly - TM-5-4310-354-140198Air Compressor Rotor Blade Inspection and ReplacementFigure 6-10. Compressor non-drive end, disassembly, blade inspection, and reassemblyFigure 6-11. Rotor blade inspection.Section V. RADIATOR AND OIL COOLERSection VI. FUEL TANKCleaning, Inspection, and Repair. - TM-5-4310-354-140204Chapter 7. REPAIR OF ENGINE ASSEMBLYFigure 7-1. Alternator assembly, disassembly and reassembly.Component Testing.Rectifier bridge checkStator checkFigure 7-6. Drive end bearing assembly.Figure 7-7. Alternator bench testing.Section II. STARTING MOTOR ASSEMBLYFigure 7-9. Starting motor assembly, no-load test setup.Figure 7-10. Starting motor assembly, disassembly and reassembly.Figure 7-11. Removing retainer from snap ring.Figure 7-12. Solenoid checking test setup.Figure 7-13. Installing clutch and drive assembly retainer and snap ring.Figure 7-14. Checking pinion clearance.Section III. FUEL INJECTION NOZZLESSection IV. FUEL INJECTION PUMPFigure 7-15. Fuel injection pump, removal and installation (Sheet 2 of 3).Figure 7-15. Fuel injection pump, removal and Installation (Sheet 3 of 3).Figure 7-16. Fuel injection pump, disassembly and reassembly.KEY to figure 7-16Disassembly. - TM-5-4310-354-140225Cleaning, Inspection, and Repair. - TM-5-4310-354-140226Reassembly. - TM-5-4310-354-140227Figure 7-17. Leaf spring, shoes, and rollers, assembly.Figure 7-20. Delivery valve and rotor retainer, assembly.Figure 7-22. End plate, assembly.Figure 7-24. Hydraulic head and rotor, assembly.Figure 7-26. Governor springs and hook, assembly.Figure 7-28. Linkage adjustment.Figure 7-29. Armature and spring tension adjustment.Figure 7-30. Bench test mounting.Figure 7-32. Test stand operation.Section V. WATER PUMP AND FAN ASSEMBLYFigure 7-33. Water pump and fan assembly, disassembly and reassembly.Cleaning, Inspection, and Repair. - TM-5-4310-354-140239Figure 7-34. Water pump impeller, installation.Section VI. ROCKER ARM, CYLINDER HEAD, AND VALVE ASSEMBLIESFigure 7-35. Rocker arm, cylinder head, and valve assemblies, disassembly and reassemblyCleaning, Inspection, and Repair. - TM-5-4310-354-140243Reassembly and Installation. - TM-5-4310-354-140244Cylinder Head Assembly and Valves.Cleaning, Inspection, and Repair. - TM-5-4310-354-140246Figure 7-38. Valve guide, installation.Reassembly and Installation. - TM-5-4310-354-140248Cylinder head assemblySection VII. OIL PAN AND OIL PUMP ASSEMBLYOil Pump. - TM-5-4310-354-140251Figure 7-42. Tachometer drive and overspeed switch drive, removal and installation.Figure 7-43. Oil pump assembly, disassembly and reassembly.Figure 7-44. Oil pump drive gear, installation.Section VIII. FLYWHEEL AND BELLHOUSINGFigure 7-46. Flywheel and bellhousing, disassembly and reassembly.Reassembly and Installation. - TM-5-4310-354-140257Section IX. GEAR HOUSING, COVER, AND TIMING GEARSFigure 7-49. Gear housing, cover, and timing gears, disassembly and reassembly.Cleaning, Inspection, and Repair. - TM-5-4310-354-140260Figure 7-50. Aligning drive gear timing marks.Section X. CAMSHAFT AND CAMSHAFT BEARINGSFigure 7-53. Camshaft and bearings, removal and installation.Section XI. PISTONS. PISTON RINGS, AND CONNECTING ROD ASSEMBLIESFigure 7-56. Piston and connecting rod, removal.Figure 7-57. Piston ring installation.Figure 7-58. Piston installation.Figure 7-59. Checking connecting rod bearing clearance.Section XII. CRANKSHAFT AND MAIN BEARINGSFigure 7-61. Upper main bearings, removal and installation.Table 7-1. Crankshaft Journal and Crankpin DimensionsReassembly and Installation. - TM-5-4310-354-140272Section XIII. CYLINDER BLOCKFigure 7-63. Cylinder block, disassembly and reassembly.Cleaning, Inspection, and Repair. - TM-5-4310-354-140275Table 7-2. Cylinder Bore DimensionsTable 7-3. Cylinder Stud InstallationReassembly and Installation. - TM-5-4310-354-140278Appendix A. REFERENCES - TM-5-4310-354-140279Appendix B. COMPONENTS OF END ITEMS LIST - TM-5-4310-354-140280Section II. INTEGRAL COMPONENTS OF END ITEM - TM-5-4310-354-140281Section III. BASIC ISSUE ITEMS - TM-5-4310-354-140282Appendix C. MAINTENANCE ALLOCATION CHART - TM-5-4310-354-140283Column Entries Used in the MAC. - TM-5-4310-354-140284Section II. MAINTENANCE ALLOCATION CHART - TM-5-4310-354-140285Section II. MAINTENANCE ALLOCATION CHART - Continued - TM-5-4310-354-140286Section II. MAINTENANCE ALLOCATION CHART - Continued - TM-5-4310-354-140287Section II. MAINTENANCE ALLOCATION CHART - Continued - TM-5-4310-354-140288Section II. MAINTENANCE ALLOCATION CHART - Continued - TM-5-4310-354-140289Section II. MAINTENANCE ALLOCATION CHART - Continued - TM-5-4310-354-140290Section II. MAINTENANCE ALLOCATION CHART - Continued - TM-5-4310-354-140291Section II. MAINTENANCE ALLOCATION CHART - Continued - TM-5-4310-354-140292Section II. MAINTENANCE ALLOCATION CHART - Continued - TM-5-4310-354-140293Section III. TOOL AND TEST EQUIPMENT REQUIREMENTS - TM-5-4310-354-140294Section IV. REFERENCE CODES-REMARKSAppendix D. ADDITIONAL AUTHORIZATION LIST - TM-5-4310-354-140296TM-5-4310-354-14 Compressor Rotary; Air Skid Mounted; Diesel Engine 125 CFM 100 PSIG (Davey Model 6M125) Manual