John Deere 770G, 770GP, 772G, 772GP Motor Graders Index:

• Contents
  • Safety—Safety and Operator Conveniences
    • Safety and Operator Convenience Features
  • Safety—General Precautions
    • Recognize Safety Information
    • Follow Safety Instructions
    • Operate Only If Qualified
    • Wear Protective Equipment
    • Avoid Unauthorized Machine Modifications
    • Inspect Machine
    • Stay Clear of Moving Parts
    • Avoid High-Pressure Fluids
    • Avoid High-Pressure Oils
    • Work In Ventilated Area
    • Prevent Fires
    • Prevent Battery Explosions
    • Handle Chemical Products Safely
    • Dispose of Waste Properly
    • Prepare for Emergencies
    • Clean Debris from Machine
  • Safety—Operating Precautions
    • Use Steps and Handholds Correctly
    • Start Only From Operator’s Seat
    • Use and Maintain Seat Belt
    • Prevent Unintended Machine Movement
    • Avoid Work Site Hazards
    • Keep Riders Off Machine
    • Avoid Backover Accidents
    • Avoid Machine Tip-Over
    • Operating Or Traveling On Public Roads
    • Inspect and Maintain ROPS
    • Add and Operate Attachments Safely
  • Safety—Maintenance Precautions
    • Park and Prepare for Service Safely
    • Service Cooling System Safely
    • Remove Paint Before Welding or Heating
    • Make Welding Repairs Safely
    • Drive Metal Pins Safely
    • Service Tires Safely
  • Safety—Safety Signs
    • Safety Signs
  • Operation—Operator’s Station
    • Advanced Display Unit (ADU)
    • Display Unit Functions
    • Display Unit—Normal Display
    • Display Unit—Main Menu
    • Display Unit—Main Menu—Codes
    • Display Unit—Main Menu—Codes—Active Codes and Stored Codes
    • Display Unit—Main Menu—Machine Settings
    • Display Unit—Main Menu—Machine Settings—Reverse Fan Cycle
    • Display Unit—Main Menu—Machine Settings—Manual Fan Reversal
    • Display Unit—Main Menu—Machine Settings—Job Timer
    • Display Unit—Main Menu—Machine Settings—Stopwatch
    • Display Unit—Main Menu—Machine Settings—Auto Shutdown
    • Display Unit—Main Menu—Machine Settings—Rear Camera Mode—If Equi
    • Display Unit—Main Menu—Diagnostics
    • Display Unit—Main Menu—Diagnostics—Machine ID
    • Display Unit—Main Menu—Diagnostics—Battery Monitor
    • Display Unit—Main Menu—Diagnostics—Engine Sensors
    • Display Unit—Main Menu—Diagnostics—Transmission Sensors
    • Display Unit—Main Menu—Diagnostics—Hydraulic Sensors
    • Display Unit—Main Menu—Diagnostics—Switch Module
    • Display Unit—Main Menu—Diagnostics—Machine Sensors
    • Display Unit—Main Menu—Diagnostics—Machine Switches
    • Display Unit—Main Menu—Diagnostics—6WD Sensors—If Equipped
    • Display Unit—Main Menu—Diagnostics—Sensors (Grade Pro Machines O
    • Display Unit—Main Menu—Diagnostics—Controls (Grade Pro Machines
    • Display Unit—Main Menu—Monitor Settings
    • Display Unit—Main Menu—Security
    • Display Unit—Main Menu—Security—Security
    • Display Unit—Main Menu—Security—Change Owner PIN
    • Display Unit—Main Menu—Security—Manage Operator PINs
    • Display Unit—Main Menu—Security—Manage Transport PIN
    • Display Unit—Main Menu—Security—Delayed Operator Logout
    • Display Unit—Main Menu—Machine Configuration (Grade Pro Machines
    • Display Unit—Main Menu—Machine Configuration—Cross Slope Sensor
    • Display Unit—Main Menu—Machine Configuration—Cross Slope Sensor
    • Display Unit—Main Menu—Machine Configuration—Cross Slope Sensor
    • Display Unit—Main Menu—Machine Configuration—Cross Slope Sensor
    • Display Unit—Main Menu—Machine Configuration—Cross Slope Sensor
    • Display Unit—Main Menu—Machine Configuration—Valve Cals (Grade P
    • Display Unit—Main Menu—Machine Configuration—Valve Cals—Articula
    • Display Unit—Main Menu—Machine Configuration—Valve Cals—Blade Si
    • Display Unit—Main Menu—Machine Configuration—Valve Cals—Circle R
    • Display Unit—Main Menu—Machine Configuration—Valve Cals—Circle S
    • Display Unit—Main Menu—Machine Configuration—Valve Cals—Left Bla
    • Display Unit—Main Menu—Machine Configuration—Valve Cals—Right Bl
    • Display Unit—Main Menu—Machine Configuration—Valve Cals—Wheel Le
    • Display Unit—Main Menu—Machine Configuration—Valve Cals—Steering
    • Display Unit—Main Menu—Machine Configuration—Valve Cals—Blade Pi
    • Display Unit—Main Menu—Machine Configuration—Valve Cals—Rear Aux
    • Sealed Switch Module
    • Switch Module Functions
    • Front Console
    • Adjusting Front Console
    • Engine Speed Control and 6WD Switches
    • Levers
    • Levers—Grade Pro Machines Only
    • Pedals
    • Lights
    • Heating and Fan Controls
    • Fire Extinguisher Location
    • Opening Lower Front Windows
    • Opening Side Windows
    • Cab Door Release
    • Adjusting Seat
    • Adjusting Premium Seat—If Equipped
    • Adjusting Premium Seat—Grade Pro Machines Only
    • 12-Volt Auxiliary Power Outlet
  • Operation—Operating the Machine
    • Before Starting Work
    • Inspect Machine Daily Before Starting
    • Check Instruments Before Starting
    • Battery Disconnect Switch
    • Engine Break-In Period
    • Starting the Engine
    • Cold Weather Starting
    • Using Coolant Heater—If Equipped
    • Using Hydraulic Pump Softstart Valve—If Equipped
    • Check Instruments After Starting
    • Stopping the Engine
    • Secondary Steering—If Equipped
    • Emergency Stopping
    • Operation On A Grade
    • Transmission Control and Park Brake Lever Operation
    • Hydraulic Control Lever Operation
    • Hydraulic Control Lever Operation—Grade Pro Machines Only
    • Cross Slope Control System Operation—Grade Pro Machines Only
    • Engine Speed Control Operation
    • 6WD Operation—If Equipped
    • Precision Mode Operation—If Equipped
    • Using Differential Lock
    • Disengaging and Engaging Saddle Lock Pin
    • Moving Blade to Bank Position
    • Parking the Machine
    • Transmission—Limp Home
    • Transmission Operation
    • Rear Camera—If Equipped
    • Tire Changing Tip
    • Lifting The Machine
    • Loading Machine on a Trailer
    • Towing Procedure
  • Maintenance—Machine
    • Diesel Fuel
    • Lubricity of Diesel Fuel
    • Handling and Storing Diesel Fuel
    • Biodiesel Fuel
    • Testing Diesel Fuel
    • Minimizing the Effect of Cold Weather on Diesel Engines
    • Low Sulfur Diesel Fuel Conditioner
    • Diesel Engine Break-In™ Oil
    • Diesel Engine Oil—Tier 2 and Stage II Engines
    • Engine Oil and Filter Service Intervals—Tier 2 and Stage II Engi
    • Diesel Engine Oil—Tier 3 and Stage III A Engines
    • Engine Oil and Filter Service Intervals—Tier 3 and Stage III A E
    • Hydraulic Tank Oil
    • Transmission, Differential Housing, Tandem Drive, 6WD Hubs—If Eq
    • Grease
    • Alternative and Synthetic Lubricants
    • Mixing of Lubricants
    • Lubricant Storage
    • Heavy Duty Diesel Engine Coolant
    • Drain Intervals for Diesel Engine Coolant
    • John Deere COOL-GARD™ II Coolant Extender
    • Supplemental Coolant Additives
    • Operating in Warm Temperature Climates
    • Additional Information About Diesel Engine Coolants and John Dee
    • Testing Diesel Engine Coolant
    • Disposing of Coolant
  • Maintenance—Periodic Maintenance
    • Engine Identification
    • Service Your Machine at Specified Intervals
    • Check the Hour Meter Regularly
    • Fuel Tank
    • Prepare Machine for Maintenance
    • Locking Machine Frame
    • Service Doors
    • Fluid Analysis Program Test Kits and 3-Way Coolant Test Kit
    • Service Intervals
    • Required Parts
  • Maintenance—As Required
    • Cleaning Radiator, Charge Air Cooler, Hydraulic/Axle Oil Cooler,
    • Clean and Tighten Battery Terminals
    • Cleaning or Replacing Cab Fresh Air and Recirculation Filter
    • Lubricate Circle Pinion
    • Checking Tire Pressure
    • Checking Blade Circle and Draft Frame Wear Inserts
    • Checking Blade Lift Cylinder Sockets
    • Lubricate Saddle Locking Pin Holes
    • Blade Side Shift Wear Insert Adjustment
    • Inspecting Accessory Belt and Belt Tensioner Spring
    • Cleaning Engine Air Intake Filter Element
    • Replace Starting Fluid Cylinder—If Equipped
    • Draining Fuel Tank Sump
    • Draining Primary Fuel Filter and Water Separator
    • Draining Auxiliary Fuel Filter and Water Separator—If Equipped
    • Check Coolant
    • Check Rear Camera—If Equipped
    • Transmission Control Unit Calibration
    • 6WD Controller Calibration—If Equipped
    • Calibrate Cross Slope Sensors—If Equipped
    • Calibrate Hydraulic Valves—If Equipped
  • Maintenance—Every 10 Hours or Daily
    • Checking Hydraulic Tank Oil Level
    • Checking Transmission Oil Level
    • Checking Engine Oil Level
    • Checking Engine Coolant Surge Tank Level
  • Maintenance—Every 50 Hours
    • Lubricate Frame Hinge Pivots
    • Lubricate Lift Cylinders
    • Lubricate Draft Frame Ball
    • Lubricate Front Mounted Scarifier or Dozer Blade—If Equipped
    • Lubricate Balderson™ Style Front Lift Group—If Equipped
    • Lubricate Front Axle Oscillation Pin
    • Lubricate Front Axle Lean Pivot Casting Pins
    • Lubricate Front Axle Lean Bar Pivot
    • Lubricate Front Axle Steering Pins
    • Lubricate Tie Rod Ends
    • Lubricate Steering Cylinders
    • Lubricate Midmount Scarifier—If Equipped
    • Lubricate Circle Side Shift Cylinder
    • Lubricate Saddle Locking Pin
  • Maintenance—Initial Service – 250 Hours
    • Changing Engine Break-In Oil and Replacing Filter
    • Changing Engine Break-In Oil (Quick Service)—If Equipped
    • Replacing Axle Housing Oil Filter
    • Replacing Transmission Oil Filter
    • Transmission Control Unit Calibration
  • Maintenance—Every 250 Hours
    • Check Battery Electrolyte Level
    • Checking Axle Housing Oil Level
    • Checking Receiver-Dryer Moisture Indicator—If Equipped
    • Checking 6WD Hub Oil Level—If Equipped
    • Take Engine Oil Sample
  • Maintenance—Every 500 Hours
    • Checking Tandem Oil Level
    • Lubricate Tandem Pivots
    • Changing Engine Oil and Replacing Filter
    • Changing Engine Oil (Quick Service)—If Equipped
    • Checking Circle Gear Case Oil Level
    • Checking Brake Accumulator
    • Replacing Final Fuel Filter
    • Replacing Primary Fuel Filter and Water Separator
    • Replacing Auxiliary Fuel Filter and Water Separator—If Equipped
    • Replace Fast Fill Fuel Filter—If Equipped
    • Take Fluid Samples
  • Maintenance—Every 1000 Hours
    • Changing 6WD Hub Oil—If Equipped
    • Adjusting Front Wheel Bearings—Standard Axle Only
    • Replacing Engine Air Intake Cleaner Elements
    • Checking Engine Air Intake Hoses
    • Check Coolant
    • Replacing In-Line Fuel Strainer
  • Maintenance—Every 2000 Hours
    • Changing Axle Housing Oil
    • Changing Transmission Oil and Cleaning Transmission Pump Inlet S
    • Changing Transmission Oil (Quick Service)—If Equipped
    • Transmission Control Unit Calibration
    • Replacing Rear Axle Breather Filter and Hydraulic Tank Breather
    • Changing Circle Gear Case Oil
    • Adjusting Engine Valve Clearance (Lash)
    • Cleaning Engine Crankcase Ventilation Tube
    • Replacing Axle Housing Oil Filter
    • Replacing Hydraulic Oil Filter
    • Replacing Transmission Oil Filter
  • Maintenance—Every 4000 Hours
    • Changing Hydraulic Tank Oil
    • Changing Hydraulic Tank Oil (Quick Service)—If Equipped
    • Changing Tandem Oil
    • Replacing Engine Crankshaft Dampener
  • Maintenance—Every 6000 Hours
    • Drain, Flush, and Refill Cooling System
    • Drain, Flush, and Refill Cooling System (Quick Service)—If Equip
  • Miscellaneous—Machine
    • Bleeding Service Brake
    • Bleeding the Fuel System
    • Checking Fuel Tank Vent Hose
    • Cleaning Cab Drains
    • Do Not Service Control Valves, Cylinders, Pumps, or Motors
    • Handling, Checking, and Servicing Batteries Carefully
    • Precautions for Alternator and Regulator
    • Using Booster Batteries—24 Volt System
    • Using Battery Charger
    • Removing and Replacing Batteries
    • JDLink™ Machine Monitoring System (MMS)—If Equipped
    • Circuit Breakers
    • Replacing Fuses
    • Fuse (Blade-Type) Color Codes
    • Welding On Machine
    • Welding Near Electronic Control Units
    • Keep Electronic Control Unit Connectors Clean
    • Checking and Adjusting Cylinder Ball and Socket Clearances
    • Checking Draft Ball Pivot Clearance
    • Replacing Front and Midmount Scarifier Shank
    • Replacing Rear Scarifier Shank
    • Replacing Front, Midmount, and Rear Scarifier Teeth
    • Replacing Ripper Teeth
    • Fluid Sampling Test Ports
    • Hardware Torque Specifications
    • Unified Inch Bolt and Screw Torque Values
    • Metric Bolt and Screw Torque Values
  • Miscellaneous—Operational Checkout
    • Operational Checkout
      • Diagnostic Trouble Code Check
      • Ignition OFF, Engine OFF Checks
      • Ignition ON, Engine OFF Checks
      • Ignition ON, Engine ON Checks
  • Miscellaneous—Troubleshooting
    • Troubleshooting Procedure
    • Engine
    • Battery
    • Hydrostatic Front Wheel Drive
    • Transmission- and Hydraulic-Related
    • Park Brake
    • Differential
    • Hydraulic System
    • Steering System
    • Service Brake
    • Air Conditioning Electrical
    • Heater System
  • Miscellaneous—Storage
    • Prepare Machine for Storage
    • Monthly Storage Procedure
  • Miscellaneous—Machine Numbers
    • Record Product Identification Number (PIN)
    • Record Engine Serial Number
    • Record Transmission Serial Number
    • Record Hydraulic Pump Serial Number
    • Keep Proof of Ownership
    • Keep Machines Secure
  • Miscellaneous—Specifications
    • Engine Specifications
    • Machine Specifications
    • Drain and Refill Capacities
• Page Number
  • Section 1-1
  • Section 1-2
  • Section 1-3
  • Section 1-4
  • Section 1-5
  • Section 2-1
  • Section 2-2
  • Section 3-1
  • Section 3-2
  • Section 3-3
  • Section 3-4
  • Section 3-5
  • Section 3-6
  • Section 3-7
  • Section 3-8
  • Section 3-9
  • Section 3-10
  • Section 3-11
  • Section 3-12
  • Section 4-1
  • Section 4-2
  • Section 4-3
  • Section 4-4
  • Section 4-5
  • Section 4-6