Operator Manual For Motorized Road Grader Model 120M

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CHAPTER 1. GENERAL INFORMATION, EQUIPMENT DESCRIPTION, AND THEORY OF OPERATION
GENERAL INFORMATION
PREPARATION FOR STORAGE OR SHIPMENT
PREPARATION FOR STORAGE OR SHIPMENT CONTINUED
Repair During Administrative Storage
Procedures for Common Components and Miscellaneous Items
Figure 1. Tiedown Locations.
Table 2. Warranty Information.
LIST OF ABBREVIATIONS/ACRONYMS
LIST OF ABBREVIATIONS/ACRONYMS CONTINUED
ELECTROMAGNETIC PULSE (EMP) EXPOSURE
EQUIPMENT DESCRIPTION AND DATA
Figure 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 DATA
EQUIPMENT DATA CONTINUED
EQUIPMENT DATA CONTINUED
THEORY OF OPERATION
Figure 1. Engine Components.
Figure 2. Engine Components.
Figure 3. Powertrain Components.
Figure 4. Brake Components.
HYDRAULICS
CHAPTER 2. OPERATOR INSTRUCTIONS
DESCRIPTION AND USE OF OPERATOR CONTROLS AND INDICATORS
Figure 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. - Continued
Figure 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 CONDITIONS
MOUNTING AND DISMOUNTING
ENGINE STARTING AND MACHINE WARM-UP
ENGINE STARTING AND MACHINE WARM-UP CONTINUED
ENGINE STARTING AND MACHINE WARM-UP
Figure 1. Articulation Lock Pin in Storage Bracket.
Figure 3. Messenger Display
Figure 4. Performance Menu.
Figure 5. Totals Menu.
MESSENGER DISPLAY
MESSENGER DISPLAY CONTINUED
Figure 7. Service Menu.
MESSENGER DISPLAY CONTINUED
MESSENGER DISPLAY CONTINUED
System Information Sub-Menu
STEERING DEAD ENGINE.
MACHINE WARNING SUMMARIES
JOYSTICK STEERING
Figure 8. Differential Lock Control and Indicator.
TRANSMISSION OPERATION
Figure 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 Setting
THROTTLE HOLD MODE SWITCH
To Select MANUAL Mode
Figure 16. Centershift Controls and Indicator.
Figure 17. Centershift Indicator.
Figure 18. All-Wheel Drive Controls.
ALL-WHEEL DRIVE (AWD)
SLOPE OPERATION
Figure 19. Scarifier Shank Stowage Rack.
ADVANCED OPERATION AND OPERATOR TIPS
Figure 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 CONTINUED
Left-Hand "V" Ditching
Figure 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 CONTINUED
Ditch Back Sloping
Figure 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 Reach
Mid-Mounted Scarifier Operation
OPERATION UNDER UNUSUAL CONDITIONS
Figure 1. Slave Receptacle.
EXTREME COLD
Starting Procedures Machine Equipped with Arctic Kit
Machine Operation
Use of Moldboard
MUD OR SOFT SURFACES
SALTWATER AREAS
FORDING
RECOVERY AND TOWING TECHNIQUES
Figure 3. Rear Towing Connection Points.
OPERATING PORTABLE FIRE EXTINGUISHER
Figure 4. Battery Disconnect Switch.
MOVING MACHINE OUT OF DANGER
STOWAGE AND DECAL/DATA PLATE GUIDE
Figure 2. Warning Message Labels.
WARNING MESSAGE LABELS CONTINUED
Figure 3. Warning Message Labels.
WARNING MESSAGE LABELS CONTINUED
Figure 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 PROCEDURES
TROUBLESHOOTING INTRODUCTION
MONITORING SYSTEM WARNINGS
Figure 14. Alert Indicators.
OPERATOR TROUBLESHOOTING SYMPTOM INDEX
OPERATOR TROUBLESHOOTING SYMPTOM INDEX - Continued
TROUBLESHOOTING PROCEDURES
ELECTRICAL SYSTEM
ELECTRICAL SYSTEM CONTINUED
ELECTRICAL SYSTEM CONTINUED
ELECTRICAL SYSTEM CONTINUED
ENGINE
ENGINE CONTINUED
ENGINE CONTINUED
ENGINE CONTINUED
HYDRAULIC SYSTEM
STEERING
STEERING CONTINUED
ALL-WHEEL DRIVE
CHAPTER 4. PMCS INSTRUCTIONS
PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) INTRODUCTION
GENERAL PMCS PROCEDURES
FLUID LEAKAGE
PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)
Table 1. Preventive Maintenance Checks and Services (PMCS) with Lubrication Information
Table 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 INSTRUCTIONS
AIR FILTER ELEMENTS MAINTENANCE
Figure 1. Air Filter Housing and Elements.
CLEANING AND INSPECTION
Figure 2. Air Filter Housing Cover.
BLADE LIFT CYLINDER SOCKET INSPECTION
BRAKE ACCUMULATOR TEST
BRAKE ACCUMULATOR TEST - Continued
CENTERSHIFT CYLINDER SOCKET INSPECTION
CIRCUIT BREAKER RESET
Figure 2. Fast Speed Blower Circuit Breaker.
CUTTING EDGES AND END BITS INSPECTION
DOMELAMP BULB REPLACEMENT
ETHER STARTING AID CYLINDER REPLACEMENT
Figure 1. Ether Starting Aid Cylinder.
INSTALLATION
FUEL/WATER SEPARATOR DRAIN
FUEL/WATER SEPARATOR DRAIN - Continued
FUSE REPLACEMENT
Figure 1. Fuse Identification.
REPLACEMENT CONTINUED
Figure 2. Fuse Panel Cover.
MOLDBOARD WEAR STRIPS INSPECTION
RADIATOR CLEANING
Figure 2. Right Rear Access Door and Panel.
Figure 3. Left Rear Access Door and Panel.
SCARIFIER LINK SOCKET INSPECTION
SCARIFIER TOOTH AND SHANK MAINTENANCE
Figure 2. Scarifier Tooth Removal.
Figure 3. Scarifier Shank Lock Pin Removal.
Figure 4. Scarifier Tooth and Shank Installation.
WINDOW WASHER TANK CHECK AND FILL
WINDOW WIPER BLADE REPLACEMENT
Figure 1. Windshield Wiper Replacement.
CHAPTER 6. SUPPORTING INFORMATION
REFERENCES
REFERENCES - Continued
COMPONENTS OF END ITEM (COEI) AND BASIC ISSUE ITEMS (BII) LISTS
Table 1. Basic Issue Items (BII).
Table 1. Basic Issue Items (BII) - Continued.
Table 1. Basic Issue Items (BII) - Continued.
EXPENDABLE AND DURABLE ITEMS LIST
Table 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).

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