CHAPTER 1. GENERAL INFORMATION, EQUIPMENT DESCRIPTION, AND THEORY OF OPERATIONGENERAL INFORMATIONPREPARATION FOR STORAGE OR SHIPMENTPREPARATION FOR STORAGE OR SHIPMENT CONTINUEDRepair During Administrative StorageProcedures for Common Components and Miscellaneous ItemsFigure 1. Tiedown Locations.Table 2. Warranty Information.LIST OF ABBREVIATIONS/ACRONYMSLIST OF ABBREVIATIONS/ACRONYMS CONTINUEDELECTROMAGNETIC PULSE (EMP) EXPOSUREEQUIPMENT DESCRIPTION AND DATAFigure 1. 120M Motor Grader (Left Side).Figure 2. 120M Motor Grader (Left Side).Figure 3. 120M Motor Grader (Right Side).Figure 4. 120M Motor Grader (Right Side).EQUIPMENT DATAEQUIPMENT DATA CONTINUEDEQUIPMENT DATA CONTINUEDTHEORY OF OPERATIONFigure 1. Engine Components.Figure 2. Engine Components.Figure 3. Powertrain Components.Figure 4. Brake Components.HYDRAULICSCHAPTER 2. OPERATOR INSTRUCTIONSDESCRIPTION AND USE OF OPERATOR CONTROLS AND INDICATORSFigure 2. Alternate Exit.Figure 3. Articulation Lock Pin.Figure 4. Wheel Lean Lock Bolt.Figure 5. Door Handles.Figure 6. Door Latch and Release.Figure 7. Seat.Figure 8. Retractable Seat Belt.Figure 9. Wrist Rests, Arm Pads, and Control Pods.Figure 10. Left Joystick Controls.JOYSTICK CONTROLS Figure 11. Right Joystick Controls.Figure 11. Right Joystick Controls. - ContinuedFigure 12. Joystick Controls.Figure 13. Mid-Mount Scarifier Control.Figure 14. Forward Controls and Indicators.Figure 15. Right-Side Control Panel.Figure 16. All-Wheel Drive Controls.Figure 17. Heater and Air Conditioning Controls.Figure 18. Wiper/Washer Controls.Figure 19. Monitoring System.Figure 20. Messenger Display and Implement Lockout Switch.Figure 21. Military Light Switch.Figure 22. Battery Disconnect Switch and Slave Receptacle.Figure 23. Arctic Heater Fuel Shutoff Valve.OPERATION UNDER USUAL CONDITIONSMOUNTING AND DISMOUNTINGENGINE STARTING AND MACHINE WARM-UPENGINE STARTING AND MACHINE WARM-UP CONTINUEDENGINE STARTING AND MACHINE WARM-UP Figure 1. Articulation Lock Pin in Storage Bracket.Figure 3. Messenger DisplayFigure 4. Performance Menu.Figure 5. Totals Menu.MESSENGER DISPLAY MESSENGER DISPLAY CONTINUEDFigure 7. Service Menu.MESSENGER DISPLAY CONTINUEDMESSENGER DISPLAY CONTINUEDSystem Information Sub-MenuSTEERING DEAD ENGINE.MACHINE WARNING SUMMARIESJOYSTICK STEERINGFigure 8. Differential Lock Control and Indicator.TRANSMISSION OPERATIONFigure 10. Transmission Control Switch.Figure 11. Transmission Modulation Control (Inching Pedal).Figure 12. Transmission Upshift and Downshift Buttons.Table 1. Shuttle Shifting.Programmable Transmission Initial Gear SettingTHROTTLE HOLD MODE SWITCHTo Select MANUAL ModeFigure 16. Centershift Controls and Indicator.Figure 17. Centershift Indicator.Figure 18. All-Wheel Drive Controls.ALL-WHEEL DRIVE (AWD) SLOPE OPERATIONFigure 19. Scarifier Shank Stowage Rack.ADVANCED OPERATION AND OPERATOR TIPSFigure 1. Left Turn - Frame Articulated Left.Figure 2. Right Turn - Frame Articulated Right.Figure 3. Turning in a Tight Area.Figure 5. Turning in a Tight Area.Figure 7. Backing Out of Drop-Off or Ditch.Figure 10. Backing Out of Drop-Off or Ditch.Figure 13. Sideshifting Blade to Avoid Object.Figure 15. Entering "S" Curve.Figure 18. Exiting "S" Curve.Figure 19. Pitch Blade Half Way.Figure 21. Leaning Wheels Toward Heel.Figure 24. Adjust Moldboard to Penetrate Surface.Figure 26. Pitch Blade Halfway.Figure 28. Leaning Wheels Toward Heel.Figure 31. Adjust Moldboard to Penetrate Surface.TRAVELING AND EARTH MOVING OPERATIONS Figure 33. Marking and Ditching Cuts.Figure 35. Center Windrow Position.Figure 38. Cleaning and Shaping Inside Slope.Figure 41. Positioning Grader.Figure 42. Leaning Wheels Toward the Heel.Figure 44. Positioning Right Front Tire and Right End of Blade.Figure 45. Leaning Wheels.Figure 47. Repeat Ditch Cut as Necessary.Figure 49. Lower the Blade to the Ground.TRAVELING AND EARTH MOVING OPERATIONS CONTINUEDLeft-Hand "V" DitchingFigure 52. Leaning Wheels Toward the Heel.Figure 55. Wheels Placed for Continued Ditching.Figure 56. Reposition Grader.Figure 58. Adjusting Blade to Deliver Material.Figure 60. Adjusting Blade to Deliver Material.TRAVELING AND EARTH MOVING OPERATIONS CONTINUEDDitch Back SlopingFigure 64. Leaning Wheels IN for Heavier Cut.Figure 65. Leaning Wheels AWAY for Lighter Cut.Figure 67. Pitching Blade.Figure 71. Raising Left Lift Cylinder and Leaning Wheels.Figure 72. Setting Right Lift Cylinder and Cutting Bottom.Figure 74. Positioning Right Front Tire and Right End of Blade.Figure 77. Articulating Frame for Stability.Figure 78. Crab Steering to Overcome Heavy Load.Figure 81. Setting Blade Position.Figure 82. Positioning Blade.Figure 85. Leaning Wheels In for Heavier Cut.Extreme Side ReachMid-Mounted Scarifier OperationOPERATION UNDER UNUSUAL CONDITIONSFigure 1. Slave Receptacle.EXTREME COLDStarting Procedures Machine Equipped with Arctic KitMachine OperationUse of MoldboardMUD OR SOFT SURFACESSALTWATER AREASFORDINGRECOVERY AND TOWING TECHNIQUESFigure 3. Rear Towing Connection Points.OPERATING PORTABLE FIRE EXTINGUISHERFigure 4. Battery Disconnect Switch.MOVING MACHINE OUT OF DANGER STOWAGE AND DECAL/DATA PLATE GUIDEFigure 2. Warning Message Labels.WARNING MESSAGE LABELS CONTINUEDFigure 3. Warning Message Labels.WARNING MESSAGE LABELS CONTINUEDFigure 4. Warning Message Labels.Figure 5. Warning Message Label.Figure 6. Additional Message Labels.Figure 7. Additional Message Labels.Figure 8. Additional Message Labels.Figure 9. Data Plate.Figure 10. UID Labels.Figure 12. UID Labels Continued.CHAPTER 3. TROUBLESHOOTING PROCEDURESTROUBLESHOOTING INTRODUCTIONMONITORING SYSTEM WARNINGSFigure 14. Alert Indicators.OPERATOR TROUBLESHOOTING SYMPTOM INDEXOPERATOR TROUBLESHOOTING SYMPTOM INDEX - ContinuedTROUBLESHOOTING PROCEDURESELECTRICAL SYSTEM ELECTRICAL SYSTEM CONTINUEDELECTRICAL SYSTEM CONTINUEDELECTRICAL SYSTEM CONTINUEDENGINEENGINE CONTINUEDENGINE CONTINUEDENGINE CONTINUEDHYDRAULIC SYSTEMSTEERINGSTEERING CONTINUEDALL-WHEEL DRIVECHAPTER 4. PMCS INSTRUCTIONSPREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) INTRODUCTIONGENERAL PMCS PROCEDURESFLUID LEAKAGEPREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)Table 1. Preventive Maintenance Checks and Services (PMCS) with Lubrication InformationTable 1. Preventive Maintenance Checks and Services (PMCS) with Lubrication Information - Continued.Figure 2. Arctic Heater.Figure 3. Oil Level Gauge (Dipstick) and Fill Cap.Table 1. Preventive Maintenance Checks and Services (PMCS) with Lubrication Information - Continued.Figure 4. Coolant Tank Level.Figure 5. Transmission/Differential Oil Level Check.Table 1. Preventive Maintenance Checks and Services (PMCS) with Lubrication Information - Continued.Table 1. Preventive Maintenance Checks and Services (PMCS) with Lubrication Information - Continued.Table 1. Preventive Maintenance Checks and Services (PMCS) with Lubrication Information - Continued.Figure 7. Ether Cylinder.Table 1. Preventive Maintenance Checks and Services (PMCS) with Lubrication Information - Continued.Figure 8. Seat Belt Inspection.Figure 9. Monitor System Display - Gauges.Figure 10. Monitor System Display - Action Light and Blade Float Indicators.Figure 11. Messenger Display.Figure 12. Accelerator, Brake, and Transmission Pedals.Table 1. Preventive Maintenance Checks and Services (PMCS) with Lubrication Information - Continued.Table 1. Preventive Maintenance Checks and Services (PMCS) with Lubrication Information - Continued.Table 1. Preventive Maintenance Checks and Services (PMCS) with Lubrication Information - Continued.Figure 13. Fuel Tank, Filler Tube, Sight Glass, and Cap.Figure 14. Filler Cap, Gasket, and Screen.Figure 15. Air Filters and Cover.Figure 16. Fuel/Water Separator.Figure 17. Transmission/Differential Oil Level Check.Figure 18. Engine Oil Level Check.Figure 19. Arctic Heater.Table 1. Preventive Maintenance Checks and Services (PMCS) with Lubrication Information - Continued.Figure 20. Coolant Tank.Figure 21. Hydraulic Oil Tank.Table 1. Preventive Maintenance Checks and Services (PMCS) with Lubrication Information - Continued.Figure 22. Refrigerant Condenser and Hydraulic Oil Cooler.Table 1. Preventive Maintenance Checks and Services (PMCS) with Lubrication Information - Continued.Table 1. Preventive Maintenance Checks and Services (PMCS) with Lubrication Information - Continued.Table 1. Preventive Maintenance Checks and Services (PMCS) with Lubrication Information - Continued.Figure 24. Circle Top Lubrication.Figure 25. Inside Cab Air Filter.Figure 26. Secondary Steering Test.Table 1. Preventive Maintenance Checks and Services (PMCS) with Lubrication Information - Continued.Figure 27. Outside Cab Air Filter.Figure 28. Fuel Tank Drain.Table 1. Preventive Maintenance Checks and Services (PMCS) with Lubrication Information - Continued.Table 1. Preventive Maintenance Checks and Services (PMCS) with Lubrication Information - Continued.Table 1. Preventive Maintenance Checks and Services (PMCS) with Lubrication Information - Continued.Table 1. Preventive Maintenance Checks and Services (PMCS) with Lubrication Information - Continued.Table 1. Preventive Maintenance Checks and Services (PMCS) with Lubrication Information - Continued.Table 1. Preventive Maintenance Checks and Services (PMCS) with Lubrication Information - Continued.Table 1. Preventive Maintenance Checks and Services (PMCS) with Lubrication Information - Continued.Figure 29. Tandem Drive Oil Level Check.Table 1. Preventive Maintenance Checks and Services (PMCS) with Lubrication Information - Continued.Table 1. Preventive Maintenance Checks and Services (PMCS) with Lubrication Information - Continued.Figure 30. ROPS Hardware.Table 1. Preventive Maintenance Checks and Services (PMCS) with Lubrication Information - Continued.Figure 31. Cooling System Pressure Cap Access Door.Figure 32. Cooling System Pressure Cap Seals.CHAPTER 5. MAINTENANCE INSTRUCTIONSAIR FILTER ELEMENTS MAINTENANCEFigure 1. Air Filter Housing and Elements.CLEANING AND INSPECTIONFigure 2. Air Filter Housing Cover.BLADE LIFT CYLINDER SOCKET INSPECTIONBRAKE ACCUMULATOR TESTBRAKE ACCUMULATOR TEST - ContinuedCENTERSHIFT CYLINDER SOCKET INSPECTIONCIRCUIT BREAKER RESETFigure 2. Fast Speed Blower Circuit Breaker.CUTTING EDGES AND END BITS INSPECTIONDOMELAMP BULB REPLACEMENTETHER STARTING AID CYLINDER REPLACEMENTFigure 1. Ether Starting Aid Cylinder.INSTALLATIONFUEL/WATER SEPARATOR DRAINFUEL/WATER SEPARATOR DRAIN - ContinuedFUSE REPLACEMENTFigure 1. Fuse Identification.REPLACEMENT CONTINUEDFigure 2. Fuse Panel Cover.MOLDBOARD WEAR STRIPS INSPECTIONRADIATOR CLEANINGFigure 2. Right Rear Access Door and Panel.Figure 3. Left Rear Access Door and Panel.SCARIFIER LINK SOCKET INSPECTIONSCARIFIER TOOTH AND SHANK MAINTENANCEFigure 2. Scarifier Tooth Removal.Figure 3. Scarifier Shank Lock Pin Removal.Figure 4. Scarifier Tooth and Shank Installation.WINDOW WASHER TANK CHECK AND FILLWINDOW WIPER BLADE REPLACEMENTFigure 1. Windshield Wiper Replacement.CHAPTER 6. SUPPORTING INFORMATIONREFERENCESREFERENCES - ContinuedCOMPONENTS OF END ITEM (COEI) AND BASIC ISSUE ITEMS (BII) LISTSTable 1. Basic Issue Items (BII).Table 1. Basic Issue Items (BII) - Continued.Table 1. Basic Issue Items (BII) - Continued.EXPENDABLE AND DURABLE ITEMS LISTTable 1. Expendable and Durable Items for the 120M Motor Grader.Table 1. Expendable and Durable Items for the 120M Motor Grader - (Continued).Table 1. Expendable and Durable Items for the 120M Motor Grader - (Continued).