John Deere 770G 770GP 772G 772GP Motor Grader Repair Workshop Manual PDF TM14251X19 - MJODTM14251X19.zip
Full-service workshop manual covering the John Deere 770G, 770GP, 772G, and 772GP Motor Graders, packed with every shop detail needed to service, fix, and rebuild these machines the way professional technicians do.
This repair and service technical manual for the John Deere 770G, 770GP, 772G, and 772GP Motor Graders contains:
* Numbered table of contents easy to use so that you can find the information you need fast.
* Detailed sub-steps expand on repair procedure information
* Numbered instructions guide you through every repair procedure step by step.
* Notes, cautions and warnings throughout each chapter pinpoint critical information.
* Bold figure number help you quickly match illustrations with instructions.
* Detailed illustrations, drawings and photos guide you through every procedure.
* Enlarged inset helps you identify and examine parts in detail.
TM14251X19 - John Deere 770G, 770GP, 772G, and 772GP Motor Graders Technical Manual.pdf
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PRODUCT DETAILS:
Total Pages: 876 pages
File Format: PDF/EPUB/MOBI/AZW (PC/Mac/Android/Kindle/iPhone/iPad; bookmarked, ToC, Searchable, Printable)
Category: Repair
Language: Spanish English French Portuguese Russian
Model:
John Deere - 770G Motor Grader - 1DW770G_ _ _C680878-
John Deere - Motor Grader - 1DW770G_ _ _D680878-
TABLE OF CONTENTS
Section 00: General Information...16
Group 0001: Safety...16
Information for European Union Directives and Eurasian Economic Union Technical Regulations Compliance...24
Recognize Safety Information...29
Follow Safety Instructions...30
Operate Only If Qualified...31
Wear Protective Equipment...32
Protect Against Noise...33
Avoid Unauthorized Machine Modifications...34
Inspect Machine...35
Stay Clear of Moving Parts...36
Avoid High-Pressure Fluids...37
Avoid High-Pressure Oils...38
Work In Ventilated Area...39
Avoid Static Electricity Risk When Refueling...40
High Debris Applications...42
Prevent Fires...43
In Case of Machine Fire...44
Prevent Battery Explosions...45
Handle Chemical Products Safely...46
Handle Starting Fluid Safely...47
Decommissioning — Proper Recycling and Disposal of Fluids and Components...48
Prepare for Emergencies...49
Clean Debris from Machine...50
Use Steps and Handholds Correctly...51
Start Only From Operator's Seat...52
Use and Maintain Seat Belt...53
Prevent Unintended Machine Movement...54
Avoid Work Site Hazards...56
Keep Riders Off Machine...58
Avoid Backover Accidents...59
Avoid Machine Tip Over and Machine Damage...60
Operating or Traveling On Public Roads...61
Inspect and Maintain ROPS...62
Operating in Water and Mud...63
Travel Safely...64
Prevent Acid Burns...65
Add and Operate Attachments Safely...67
Park And Prepare For Service Safely...68
Service Machines Safely...69
Service Cooling System Safely...70
Service Accumulator Systems Safely...71
Remove Paint Before Welding or Heating...72
Make Welding Repairs Safely...73
Drive Metal Pins Safely...74
Service Tires Safely...75
Use Proper Lifting Equipment...76
Group 0003: Torque Values...17
Metric Bolt and Cap Screw Torque Values...79
Additional Metric Cap Screw Torque Values...81
Unified Inch Bolt and Cap Screw Torque Values...83
Service Recommendations for 37° Flare and 30° Cone Seat Connectors...85
Service Recommendations for O-Ring Boss Fittings...87
Service Recommendations for Flared Connections—Straight or Tapered Threads...89
Service Recommendations for Flat Face O-Ring Seal Fittings...91
O-Ring Face Seal Fittings With SAE Inch Hex Nut and Stud End for High-Pressure Service Recommendations...93
O-Ring Face Seal Fittings With Metric Hex Nut and Stud End for Standard Pressure Service Recommendations...95
O-Ring Face Seal Fittings With Metric Hex Nut and Stud End for High-Pressure Service Recommendations...98
Service Recommendations for Metric Series Four Bolt Flange Fitting...101
Service Recommendations For Inch Series Four Bolt Flange Fittings...103
Inch Series Four Bolt Flange Fitting for High-Pressure Service Recommendations...105
Service Recommendations For Non-Restricted Banjo (Adjustable) Fittings...107
Service Recommendations For O-Ring Boss Fittings With Shoulder...110
Metric 24° O-Ring Seal DIN 20078 Service Recommendations...113
Section 01: Wheels...117
Group 0110: Powered Wheels and Fasteners...117
Wheel Remove and Install...119
Tire Remove and Install...120
Section 02: Axles and Suspension Systems...123
Group 0225: Input Drive Shafts and U-Joints...123
Transmission-to-Rear Axle Drive Shaft Remove and Install...127
Transmission-to-Rear Axle Drive Shaft Disassemble and Assemble...129
Group 0230: Non-Powered Wheel Axles...123
Front Wheel Hub and Spindle Remove and Install—Non 6WD...135
Front Wheel Hub and Spindle Disassemble and Assemble—Non 6WD...139
Front Axle Remove and Install—Non 6WD...146
Group 0240: Powered Wheel Axle...123
Front Wheel Hub and Spindle Remove and Install—6WD...157
Front Wheel Hub and Spindle Disassemble and Assemble—6WD...163
Front Wheel Hub and Spindle Disassemble and Assemble With Steering Angle Sensor—6WD...170
6WD Drive Hub Disassemble and Assemble...177
Planetary Drive Disassemble and Assemble...179
Planetary Brake Disassemble and Assemble...182
6WD Bearings Remove and Install...191
6WD O-Ring Metal Face Seal Remove and Install...195
Front Axle Remove and Install—6WD...204
Group 0250: Axle Shaft, Bearings, and Reduction Gears...123
TeamMate™ II 1400 Series Inboard Planetary Axle—Use CTM138619...212
Rear Axle Remove and Install...213
Tandem and Wheel Axle Assembly Remove and Install...218
Tandem Wheel Axle Assembly Remove and Install...222
Tandem Wheel Axle Assembly Disassemble and Assemble...225
Tandem Pivot Disassemble and Assemble...230
Final Drive Axle Remove and Install...235
Tandem Drive Shaft Remove and Install...243
Drive Chain Remove and Install...249
Group 0260: Hydraulic System...123
Six-Wheel Drive (6WD) Pump Remove and Install...258
6WD Pump Disassemble and Assemble...263
6WD Charge Pump Remove and Install...270
6WD Engagement Manifold Remove and Install...271
Differential Lock Pump Remove and Install...274
6WD Motor Remove and Install...276
6WD Motor Disassemble and Assemble...278
Section 03: Transmission...282
Group 0300: Removal and Installation...282
Transmission Remove and Install...290
DF180 Transmission...297
Group 0360: Hydraulic System...282
Transmission Charge Pump Remove and Install...302
Section 04: Engine...305
Group 0400: Removal and Installation...305
John Deere Engine...307
Engine Remove and Install—Engine 6090HDW38...308
Engine Remove and Install—Engine 6090HDW37...322
Section 05: Engine Auxiliary System...323
Group 0510: Cooling System...323
Fan Blade Remove and Install...327
Radiator Remove and Install...330
Hydraulic and Differential Oil Cooler Remove and Install...334
Transmission Oil Cooler Remove and Install...337
Fuel Cooler Remove and Install...340
Charge Air Cooler Remove and Install...342
Group 0560: External Fuel Supply Systems...323
Fuel Tank Remove and Install...351
Fast Fill Fuel System Disassemble and Assemble—If Equipped...357
Section 07: Torsional Isolator...361
Group 0752: Elements...361
Torsional Isolator Remove and Install...364
Section 09: Steering System...366
Group 0920: Power Steering...366
Toe-In Check and Adjustment...369
Group 0960: Hydraulic System...366
Steering Wheel, Column, and Valve Remove and Install—Standard Controls...374
Steering Wheel, Column, and Valve Remove and Install—EH Controls...377
EH Controls Steering Canceling Valve Remove and Install...381
Steering Valve Disassemble and Assemble...383
Steering Cylinder Remove and Install...390
Hydraulic Cylinder Disassemble and Assemble...394
Wheel Lean Cylinder Remove and Install...395
Secondary Steering Accumulator Remove and Install—If Equipped...399
Section 10: Service Brakes...401
Group 1011: Active Elements...401
Service Brake Repair...403
Group 1060: Hydraulic System...401
Service Brake Valve Remove and Install...407
Service Brake Bleeding...410
Brake Accumulator Remove and Install...411
Section 11: Park Brake...413
Group 1111: Active Elements...413
Park Brake Repair...415
Section 16: Electrical System...416
Group 1600: Removal and Installation...416
Controller Remove and Install...419
Steering Angle Sensor Remove and Install...421
Replace (Pull-Type) Metri-Pack® Connectors...425
Replace (Push-Type) Metri-Pack® Connectors...427
Replace Metri-Pack® Connectors...428
Replace Weather Pack™ Connector...430
Install Weather Pack™ Contact...432
Replace DEUTSCH® Rectangular or Triangular Connectors...434
Replace DEUTSCH® Circular Connectors...436
Replace DEUTSCH® Connectors...438
Install DEUTSCH® Contact...440
Replace Cinch™ Connectors...442
Install Cinch™ Contact...444
Repair 32 and 48-Way Cinch™ Connectors...446
Remove Connector Body From Blade Terminals...451
Repair Molex Connectors...452
Replace TYCO™ Connectors...455
Section 17: Frame or Supporting Structure...457
Group 1740: Frame Installation...457
Welding On Machine...459
Welding Repair of Major Structure...460
Separate Frames at Articulation Joint...462
Articulation Bearing Replacement...468
Rear Platform Remove and Install...472
Section 18: Operator's Station...480
Group 1800: Removal and Installation...480
Cab Remove and Install...490
Cab Remove and Install—GP Machine Only...498
Group 1810: Operator Enclosure...480
Windowpanes Remove and Install...508
Cab Door Handle Remove and Install...510
Cab Door Latch Remove and Install...512
Rivet Nut Installation...514
Wiper Arm Installation...519
Group 1815: Pedal Assembly...480
Inching Pedal Remove and Install...524
Group 1816: Steering Tilt Console...480
Steering Support Console Remove and Install—Standard Controls...529
Steering Support Console Remove and Install—EH Controls...532
Console Tilt Remove and Install...535
Steering Tilt Assembly Remove and Install...538
Group 1821: Seat and Seat Belt...480
Seat Remove and Install...542
Mechanical Seat Remove and Install...545
Seat Belt Remove and Install...548
Armrest Remove and Install...550
Armrest Remove and Install—EH Controls...551
Armrest Disassemble and Assemble—EH Controls...553
Standard Seat Disassemble and Assemble...555
Mechanical Seat Disassemble and Assemble...557
Deluxe Seat Disassemble and Assemble...559
Air Suspension Disassemble and Assemble...561
Group 1830: Heating and Air Conditioning...480
R134a Refrigerant Cautions and Proper Handling...564
Flush and Purge Air Conditioning System...565
R134a Refrigerant Oil Information...567
R134a Refrigerant Recovery, Recycling, and Charging Station Installation Procedure...569
Recover R134a Refrigerant...571
Evacuate R134a System...572
Charge R134a System...574
Expansion Valve Remove and Install...576
Freeze Control Switch Remove and Install...581
Heater Control Valve Remove and Install...583
Blower Motor Assembly Remove and Install...586
Compressor Remove and Install...587
Condenser Remove and Install...590
Heater and Air Conditioner Remove and Install...594
Receiver-Dryer Remove and Install...599
Heater Control Valve Leak Check...601
Section 19: Sheet Metal and Styling...602
Group 1910: Engine Enclosure...602
Engine Service Doors and Side Shields Remove and Install...604
Engine Covers Remove and Install...605
Group 1921: Grille and Grille Housing...602
Grille Housing Remove and Install...615
Section 21: Main Hydraulic System...620
Group 2160: Hydraulic System...620
Hydraulic Pump Remove and Install...624
Hydraulic Pump Disassemble and Assemble...627
Hydraulic System Manifold Remove and Install...632
Hydraulic System Manifold Disassemble and Assemble...634
Soft Start Valve Remove and Install...636
Vacuum Pump Installation...637
Hydraulic Fan Pump Remove and Install...638
Hydraulic Fan Motor Remove and Install...641
Hydraulic Fan Valve Remove and Install...643
General Oil Cleanup Procedure...646
Hydraulic Component Failure Cleanup Procedure...649
Hydraulic Attenuator Remove and Install...651
Section 34: Grading Device...653
Group 3415: Controls Linkage...653
Control Linkage Remove and Install...657
Group 3440: Frames...653
Lift Arms Remove and Install...664
Saddle Locking Cylinder Remove and Install...669
Saddle Locking Pin Disassemble and Assemble...672
Saddle Frame Remove and Install...675
Blade Pitch Frame Remove and Install...677
Draft and Circle Frame Remove and Install...681
Circle Adjustment...686
Blade Side Shift Wear Inserts Remove and Install...693
Group 3450: Circle Gearbox...653
Circle Drive Gearbox Remove and Install...698
Dual Input Circle Drive Gearbox Remove and Install—If Equipped...700
Circle Drive Gearbox Disassemble and Assemble...704
Circle Drive Gear Case (With Slip Clutch) Disassemble and Assemble...709
Dual Input Circle Drive Gearbox Disassemble and Assemble—If Equipped...727
Dual Input Circle Drive Gear Case (With Slip Clutch) Disassemble and Assemble—If Equipped...732
Circle Rotate Motor Disassemble and Assemble...739
Circle Rotate Sensor Remove and Install...757
Group 3460: Hydraulic System...653
Grader Control Valve Remove and Install...767
Draft Frame Mount Grader Control Valve Remove and Install—EH Controls...773
Cab Mount Grader Control Valve Remove and Install—EH Controls...777
Grader Control Valve Disassemble and Assemble...780
Midmount Scarifier Valve Section Disassemble and Assemble...783
Midmount Scarifier Valve Section Disassemble and Assemble—EH Controls...786
Blade Lift Valve Section Disassemble and Assemble...789
Blade Lift Valve Section Disassemble and Assemble—EH Controls...792
Auxiliary (With Float) Valve Section Disassemble and Assemble...795
Auxiliary (Without Float) Valve Section Disassemble and Assemble...798
Auxiliary Valve Section Disassemble and Assemble—EH Controls...801
Wheel Lean, Articulation, Circle Side Shift, Blade Pitch, and Blade Side Shift Valve Section Disassemble and Assemble...804
Wheel Lean, Articulation, Circle Side Shift, Blade Pitch, Blade Side Shift, and Steering Valve Section Disassemble and Assemble—EH Controls...807