John Deere 770G, 770GP, 772G, and 772GP Motor Graders Manual (OMT342548)

Complete operator's service manual for John Deere 770G, 770GP, 772G, and 772GP Motor Graders, with all the technical information to maintain & operate your Grader.

PRODUCT DETAILS:
Total Pages: 613 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English

omt342548 - 770G, 770GP, 772G, and 772GP Motor Graders Operator's Manual.pdf

MAIN SECTIONS
TABLE OF CONTENTS.......1
Section 1-1: Safety—Safety and Operator Conveniences.......36
  Safety and Operator Convenience Features.......37
Section 1-2: Safety—General Precautions.......39
  Information for European Union Directives and Eurasian Economic Union Technical Regulations Compliance.......40
  Recognize Safety Information.......44
  Follow Safety Instructions.......45
  Operate Only If Qualified.......46
  Wear Protective Equipment.......47
  Avoid Unauthorized Machine Modifications.......48
  Inspect Machine.......49
  Stay Clear of Moving Parts.......50
  Avoid High-Pressure Fluids.......51
  Avoid High-Pressure Oils.......52
  Work In Ventilated Area.......53
  Avoid Static Electricity Risk When Refueling.......54
  Prevent Fires.......56
  In Case of Machine Fire.......57
  Prevent Battery Explosions.......58
  Handle Chemical Products Safely.......59
  Handle Starting Fluid Safely.......60
  Decommissioning — Proper Recycling and Disposal of Fluids and Components.......61
  Prepare for Emergencies.......62
  Clean Debris from Machine.......63
  Add Cab Guarding for Special Uses.......64
Section 1-3: Safety—Operating Precautions.......65
  Use Steps and Handholds Correctly.......66
  Start Only From Operator's Seat.......67
  Use and Maintain Seat Belt.......68
  Prevent Unintended Machine Movement.......69
  Avoid Work Site Hazards.......70
  Keep Riders Off Machine.......72
  Avoid Backover Accidents.......73
  Avoid Machine Tip-Over.......74
  Operating or Traveling On Public Roads.......75
  Inspect and Maintain ROPS.......76
  Travel Safely.......77
  Prevent Acid Burns.......78
  Add and Operate Attachments Safely.......80
Section 1-4: Safety—Maintenance Precautions.......81
  Park and Prepare for Service Safely.......82
  Service Cooling System Safely.......83
  Remove Paint Before Welding or Heating.......84
  Make Welding Repairs Safely.......85
  Drive Metal Pins Safely.......86
  Service Tires Safely.......87
Section 1-5: Safety—Safety Signs.......89
  Safety Signs.......89
Section 2-1: Operation—Operator’s Station.......97
  Advanced Display Unit (ADU).......98
  Display Unit Functions.......100
  Sealed Switch Module.......109
  Switch Module Functions.......111
  Front Console.......114
  Adjusting Front Console.......116
  Engine Speed Control and 6WD Switches.......117
  Levers.......119
  Levers—Grade Pro Machines Only.......121
  Pedals.......123
  Lights.......124
  Heating and Fan Controls.......126
  Fire Extinguisher Mounting Location.......127
  Opening Lower Front Windows—If Equipped.......128
  Opening Side Windows.......129
  Cab Door Release.......130
  Adjusting Seat.......131
  Adjusting Premium Seat—If Equipped.......133
  Adjusting Premium Seat—Grade Pro Machines Only.......135
  12-Volt Auxiliary Power Outlet.......97
  Radio—If Equipped.......139
Section 2-2: Operation—Operating the Machine.......142
  Before Starting Work.......143
  Inspect Machine Daily Before Starting.......144
  Check Instruments Before Starting.......145
  Battery Disconnect Switch.......146
  Engine Break-In Period.......147
  Starting the Engine.......562
  Cold Weather Starting.......151
  Using Coolant Heater—If Equipped.......152
  Using Hydraulic Pump Softstart Valve—If Equipped.......153
  Check Instruments After Starting.......154
  Stopping the Engine.......562
  Secondary Steering—If Equipped.......156
  Emergency Stopping.......157
  Engine Speed Control Operation.......158
  6WD Operation—If Equipped.......142
  Precision Mode Operation—If Equipped.......162
  Operation on a Grade.......164
  Transmission Control and Park Brake Lever Operation.......165
  Hydraulic Control Lever Operation.......167
  Hydraulic Control Lever Operation—Grade Pro Machines Only.......174
  Cross Slope Control System Operation—Grade Pro Machines Only.......181
  Using Differential Lock.......185
  Disengaging and Engaging Saddle Lock Pin.......188
  Moving Blade to Bank Position.......190
  Parking the Machine.......192
  Transmission—Limp Home.......194
  Transmission Operation.......195
  Rear Camera—If Equipped.......197
  Tire Changing Tip.......199
  Lifting the Machine.......200
  Loading Machine on a Trailer.......203
  Towing Procedure.......206
Section 2-3: Operation—Monitor Operation.......208
  Display Unit—Normal Display.......210
  Display Unit—Main Menu.......212
  Display Unit—Main Menu—Codes.......214
  Display Unit—Main Menu—Codes—Active Codes and Stored Codes.......216
  Display Unit—Main Menu—Machine Settings.......217
  Display Unit—Main Menu—Machine Settings—Reverse Fan Cycle—If Equipped.......219
  Display Unit—Main Menu—Machine Settings—Manual Fan Reversal—If Equipped.......220
  Display Unit—Main Menu—Machine Settings—Job Timer.......221
  Display Unit—Main Menu—Machine Settings—Stopwatch.......222
  Display Unit—Main Menu—Machine Settings—Auto Shutdown.......223
  Display Unit—Main Menu—Machine Settings—Rear Camera Mode—If Equipped.......224
  Display Unit—Main Menu—Diagnostics.......225
  Display Unit—Main Menu—Diagnostics—Machine ID.......227
  Display Unit—Main Menu—Diagnostics—Battery Monitor.......228
  Display Unit—Main Menu—Diagnostics—Engine Sensors.......229
  Display Unit—Main Menu—Diagnostics—Transmission Sensors.......230
  Display Unit—Main Menu—Diagnostics—Hydraulic Sensors.......231
  Display Unit—Main Menu—Diagnostics—Switch Module.......232
  Display Unit—Main Menu—Diagnostics—Machine Sensors.......233
  Display Unit—Main Menu—Diagnostics—Machine Switches.......234
  Display Unit—Main Menu—Diagnostics—6WD Sensors—If Equipped.......235
  Display Unit—Main Menu—Diagnostics—Sensors (Grade Pro Machines Only).......236
  Display Unit—Main Menu—Diagnostics—Controls (Grade Pro Machines Only).......237
  Display Unit—Main Menu—Monitor Settings.......238
  Display Unit—Main Menu—Security.......240
  Display Unit—Main Menu—Security—Security.......243
  Display Unit—Main Menu—Security—Change Owner PIN.......244
  Display Unit—Main Menu—Security—Manage Operator PINs.......245
  Display Unit—Main Menu—Security—Manage Transport PIN.......247
  Display Unit—Main Menu—Security—Delayed Operator Logout.......249
  Display Unit—Main Menu—Machine Configuration (Grade Pro Machines Only).......250
  Display Unit—Main Menu—Machine Configuration—Cross Slope Sensor Cal (Grade Pro Machines Only).......252
  Display Unit—Main Menu—Machine Configuration—Cross Slope Sensor Cal—Roll Cal (Grade Pro Machines Only).......253
  Display Unit—Main Menu—Machine Configuration—Cross Slope Sensor Cal—Circle Rotate Cal (Grade Pro Machines Only).......260
  Display Unit—Main Menu—Machine Configuration—Cross Slope Sensor Cal—Pitch Cal (Grade Pro Machines Only).......263
  Display Unit—Main Menu—Machine Configuration—Cross Slope Sensor Cal—Roll and Pitch Cal (Grade Pro Machines Only).......268
  Display Unit—Main Menu—Machine Configuration—Valve Cals (Grade Pro Machines Only).......276
  Display Unit—Main Menu—Machine Configuration—Valve Cals—Articulation (Grade Pro Machines Only).......278
  Display Unit—Main Menu—Machine Configuration—Valve Cals—Blade Side Shift (Grade Pro Machines Only).......280
  Display Unit—Main Menu—Machine Configuration—Valve Cals—Circle Rotate Cal (Grade Pro Machines Only).......282
  Display Unit—Main Menu—Machine Configuration—Valve Cals—Circle Side Shift Cal (Grade Pro Machines Only).......285
  Display Unit—Main Menu—Machine Configuration—Valve Cals—Left Blade Lift Cal (Grade Pro Machines Only).......287
  Display Unit—Main Menu—Machine Configuration—Valve Cals—Right Blade Lift Cal (Grade Pro Machines Only).......290
  Display Unit—Main Menu—Machine Configuration—Valve Cals—Wheel Lean Cal (Grade Pro Machines Only).......293
  Display Unit—Main Menu—Machine Configuration—Valve Cals—Steering Cal (Grade Pro Machines Only).......295
  Display Unit—Main Menu—Machine Configuration—Valve Cals—Blade Pitch Cal (Grade Pro Machines Only).......297
  Display Unit—Main Menu—Machine Configuration—Valve Cals—Rear Aux 1, 2, 3 and Front Aux 1, 2, 3 Cal (Grade Pro Machines Only).......299
Section 3-1: Maintenance—Machine.......302
  Required Emission-Related Information.......303
  Engines With Tier 3-Stage IIIA/MAR-I Emission Control.......304
  Diesel Fuel.......305
  Lubricity of Diesel Fuel.......307
  Handling and Storing Diesel Fuel.......308
  BioDiesel Fuel.......309
  Supplemental Diesel Fuel Additives.......311
  Testing Diesel Fuel.......312
  Fuel Filters.......313
  Minimizing the Effect of Cold Weather on Diesel Engines.......314
  Diesel Engine Break-In™ Oil.......316
  Diesel Engine Oil — Tier 2 and Stage II.......317
  Engine Oil and Filter Service Intervals — Tier 2 and Stage II Engines.......319
  Diesel Engine Oil — Tier 3 and Stage III.......321
  Engine Oil and Filter Service Intervals.......350
  Oil Filters.......325
  Hydraulic Oil.......326
  Transmission, Differential Housing, Tandem Drive, 6WD Hubs—If Equipped, and Circle Gear Case Oil.......328
  Grease.......329
  Alternative and Synthetic Lubricants.......330
  Mixing of Lubricants.......331
  Lubricant Storage.......332
  Diesel Engine Coolant (engine with wet sleeve cylinder liners).......333
  Water Quality for Mixing with Coolant Concentrate.......335
  Operating in Warm Temperature Climates.......336
  Testing Coolant Freeze Point.......337
  Disposing of Coolant.......339
Section 3-2: Maintenance—Periodic Maintenance.......340
  Engine Identification.......341
  Service Machine at Specified Intervals.......343
  Check the Hour Meter Regularly.......344
  Fuel Tank.......345
  Prepare Machine for Maintenance.......346
  Locking Machine Frame.......347
  Service Doors.......348
  Fluid Analysis Program Test Kits and 3-Way Coolant Test Kit.......349
  Service Intervals.......350
  Required Parts.......353
Section 3-3: Maintenance—As Required.......355
  Clean Cooler Cores.......356
  Clean and Tighten Battery Terminals.......359
  Clean or Replace Cab Fresh Air and Cab Recirculation Filters.......360
  Lubricate Circle Pinion.......362
  Check Tire Pressure.......363
  Check Blade Circle and Draft Frame Wear Inserts.......366
  Check Blade Lift Cylinder Sockets.......367
  Lubricate Saddle Locking Pin Holes.......368
  Blade Side Shift Wear Insert Adjustment.......369
  Inspect Accessory Belt and Belt Tensioner Spring.......371
  Replace Engine Air Intake Filter Elements.......373
  Replace Starting Fluid Cylinder—If Equipped.......375
  Replace In-Line Fuel Strainer.......376
  Drain Fuel Tank Sump.......377
  Drain Primary Fuel Filter and Water Separator.......378
  Drain Auxiliary Fuel Filter and Water Separator—If Equipped.......379
  Check Coolant.......381
  Check Rear Camera—If Equipped.......383
  Transmission Control Unit Calibration.......466
  6WD Controller Calibration—If Equipped.......355
  Cross Slope Sensors Calibration—If Equipped.......387
  Hydraulic Valves Calibration—If Equipped.......388
Section 3-4: Maintenance—Every 10 Hours or Daily.......389
  Check Hydraulic Tank Oil Level.......390
  Check Transmission Oil Level.......391
  Check Engine Oil Level.......392
  Check Engine Coolant Surge Tank Level.......393
Section 3-5: Maintenance—Every 50 Hours.......394
  Lubricate Frame Hinge Pivots.......395
  Lubricate Draft Frame Ball.......396
  Lubricate Front Mounted Scarifier or Dozer Blade—If Equipped.......397
  Lubricate Balderson™ Style Front Lift Group—If Equipped.......398
  Lubricate Front Axle Oscillation Pin.......399
  Lubricate Front Axle Lean Pivot Casting Pins.......400
  Lubricate Front Axle Lean Bar Pivot.......401
  Lubricate Front Axle Steering Pin.......402
  Lubricate Tie Rod Ends.......403
  Lubricate Steering Cylinders.......404
  Lubricate Midmount Scarifier—If Equipped.......405
  Lubricate Lift Cylinders.......406
  Lubricate Circle Side Shift Cylinder.......407
  Lubricate Saddle Locking Pin.......408
Section 3-6: Maintenance—Initial Service—250 Hours.......409
  Drain and Refill Engine Break-In Oil and Replace Filter.......410
  Drain and Refill Engine Break-In Oil (Quick Service)—If Equipped.......413
  Replace Axle Oil Filter.......463
  Replace Transmission Oil Filter.......465
Section 3-7: Maintenance—Every 250 Hours.......417
  Check Battery Electrolyte Level and Terminals.......418
  Take Engine Oil Sample.......421
Section 3-8: Maintenance—Every 500 Hours.......422
  Drain and Refill Engine Oil and Replace Filter.......423
  Drain and Refill Engine Oil (Quick Service)—If Equipped.......426
  Check Tandem Oil Level.......428
  Lubricate Tandem Pivots.......430
  Check Axle Oil Level.......431
  Check Receiver-Dryer Moisture Indicator—If Equipped.......432
  Check Circle Gear Case Oil Level.......433
  Check Brake Accumulator.......434
  Check 6WD Hub Oil Level—If Equipped.......435
  Replace Final Fuel Filter.......436
  Replace Primary Fuel Filter and Water Separator.......438
  Replace Auxiliary Fuel Filter and Water Separator—If Equipped.......440
  Take Fluid Samples.......442
Section 3-9: Maintenance—Every 1000 Hours.......443
  Drain and Refill 6WD Hub Oil—If Equipped.......444
  Adjust Front Wheel Bearings—Standard Axle Only.......445
  Check Engine Air Intake Hoses.......447
  Check Coolant Condition.......448
  Replace Fast Fill Fuel Breather Filter—If Equipped.......449
  Replace Fuel Tank Breather.......450
Section 3-10: Maintenance—Every 2000 Hours.......451
  Drain and Refill Axle Oil.......452
  Drain and Refill Transmission Oil and Clean Transmission Pump Inlet Screen.......453
  Drain and Refill Transmission Oil (Quick Service)—If Equipped.......456
  Replace Rear Axle Breather Filter and Hydraulic Tank Breather Filter.......458
  Drain and Refill Circle Gear Case Oil.......460
  Check and Adjust Engine Valve Lash.......461
  Clean Engine Crankcase Ventilation Tube.......462
  Replace Axle Oil Filter.......463
  Replace Hydraulic Oil Filter.......464
  Replace Transmission Oil Filter.......465
  Transmission Control Unit Calibration.......466
Section 3-11: Maintenance—Every 4000 Hours.......467
  Drain and Refill Hydraulic Tank Oil.......468
  Drain and Refill Hydraulic Tank Oil (Quick Service)—If Equipped.......471
  Drain and Refill Tandem Oil.......473
Section 3-12: Maintenance—Every 4500 Hours.......476
  Replace Engine Crankshaft Damper.......477
Section 3-13: Maintenance—Every 6000 Hours.......478
  Drain, Flush, and Refill Cooling System.......479
  Drain, Flush, and Refill Cooling System (Quick Service)—If Equipped.......482
Section 4-1: Miscellaneous—Machine.......485
  Bleeding Service Brake.......575
  Bleeding the Fuel System.......487
  Check Fuel Tank Vent Hose.......489
  Clean Cab Drains.......490
  Do Not Service or Adjust Injection Nozzles or High-Pressure Fuel Pump.......491
  Do Not Service Control Valves, Cylinders, Pumps, or Motors.......492
  Precautions for Alternator and Regulator.......493
  Handling, Checking, and Servicing Batteries Carefully.......494
  Using Battery Charger.......497
  Using Booster Batteries—24-Volt System.......499
  Remove and Replace Batteries.......500
  JDLink™ Machine Monitoring System (MMS)—If Equipped.......502
  Circuit Breakers.......503
  Replacing Fuses.......504
  Fuse (Blade-Type) Color Codes.......507
  Welding on Machine.......508
  Keep Electronic Control Unit Connectors Clean.......509
  Checking and Adjusting Cylinder Ball and Socket Clearances.......510
  Checking Draft Ball Pivot Clearance.......511
  Replacing Front and Midmount Scarifier Shank.......512
  Replacing Rear Scarifier Shank.......513
  Replacing Front, Midmount, and Rear Scarifier Teeth.......514
  Replacing Ripper Teeth.......515
  Fluid Sampling Test Ports.......516
  Inspect and Clean Polycarbonate Windows.......517
  Hardware Torque Specifications.......519
  Unified Inch Bolt and Screw Torque Values.......520
  Metric Bolt and Screw Torque Values.......522
Section 4-2: Miscellaneous—Operational Checkout.......525
  Operational Checkout.......525
Section 4-3: Miscellaneous—Troubleshooting.......560
  Troubleshooting Procedure.......561
  Engine.......562
  Battery.......566
  Hydrostatic Front Wheel Drive.......567
  Transmission and Hydraulic Related.......568
  Park Brake.......570
  Differential.......571
  Hydraulic System.......572
  Steering System.......574
  Service Brake.......575
  Air Conditioning Electrical.......576
  Heater System.......577
Section 4-4: Miscellaneous—Storage.......578
  Prepare Machine for Storage.......579
  Monthly Storage Procedure.......581
Section 4-5: Miscellaneous—Machine Numbers.......583
  Record Product Identification Number (PIN).......584
  Record Engine Serial Number.......585
  Record Transmission Serial Number.......586
  Record Hydraulic Pump Serial Number.......587
  Keep Proof of Ownership.......588
  Keep Machines Secure.......589
Section 4-6: Miscellaneous—Specifications.......590
  Engine Specifications.......591
  Machine Specifications.......592
  Drain and Refill Capacities.......597
  Eurasian Economic Union.......598
  Machine Design Life.......599

John Deere 770G, 770GP, 772G, and 772GP Motor Graders Manual (OMT342548)