John Deere 670G 670GP 672G 672GP Repair Manual TM14072X19 2022

Data Size: 39.51 MB 
File Type: PDF 
Language: English 
Manufacturer: John Deere 
Applicable Machine: Motor Graders 
Document: Repair Manual 
Machine Model: John Deere 670G ; 670GP ; 672G ; 672GP Motor Graders 
PIN: 1DW670GX_ _F678818—680877 
Serial Number: F678818-680877 
Book Number: TM14072X19 
Publication Date: 2022 
Page: 503 Pages

List Contents:

Introduction 
Manual Identification—READ THIS FIRST! 
Contents 
General Information 
Safety 
Information for European Union Directives and Eurasian Economic Union Technical Regulations Compliance 
To the Customer 
Sound and Vibration Specifications 
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 
Avoid Static Electricity Risk When Refueling 
High Debris Applications 
Prevent Fires 
In Case of Machine Fire 
Prevent Battery Explosions 
Handle Chemical Products Safely 
Handle Starting Fluid Safely 
Decommissioning — Proper Recycling and Disposal of Fluids and Components 
Exhaust Filter Ash Handling and Disposal 
Prepare for Emergencies 
Clean Debris from Machine 
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 and Machine Damage 
Operating or Traveling On Public Roads 
Inspect and Maintain ROPS 
Travel Safely 
Prevent Acid Burns 
Add and Operate Attachments Safely 
Park and Prepare for Service Safely 
Service Machines Safely 
Clean Exhaust Filter Safely 
Service Cooling System Safely 
Remove Paint Before Welding or Heating 
Make Welding Repairs Safely 
Drive Metal Pins Safely 
Service Tires Safely 
Use Proper Lifting Equipment 
Torque Values 
Metric Bolt and Cap Screw Torque Values 
Additional Metric Cap Screw Torque Values 
Unified Inch Bolt and Cap Screw Torque Values 
Service Recommendations for 37° Flare and 30° Cone Seat Connectors 
Service Recommendations for O-Ring Boss Fittings 
Straight Fitting 
Angle Fitting 
Service Recommendations for Flared Connections—Straight or Tapered Threads 
Service Recommendations for Flat Face O-Ring Seal Fittings 
O-Ring Face Seal Fittings With SAE Inch Hex Nut and Stud End for High-Pressure Service Recommendations 
O-Ring Face Seal Fittings With Metric Hex Nut and Stud End for Standard Pressure Service Recommendations 
O-Ring Face Seal Fittings With Metric Hex Nut and Stud End for High-Pressure Service Recommendations 
Service Recommendations for Metric Series Four Bolt Flange Fitting 
Service Recommendations For Inch Series Four Bolt Flange Fittings 
Inch Series Four Bolt Flange Fitting for High-Pressure Service Recommendations 
Service Recommendations For Non-Restricted Banjo (Adjustable) Fittings 
Service Recommendations For O-Ring Boss Fittings With Shoulder 
Metric 24° O-Ring Seal DIN 20078 Service Recommendations 
Wheels 
Powered Wheels and Fasteners 
Wheel Remove and Install 
Tire Remove and Install 
Axles and Suspension Systems 
Input Drive Shafts and U-Joints 
Transmission-to-Rear Axle Drive Shaft Remove and Install 
Transmission-to-Rear Axle Drive Shaft Disassemble and Assemble 
Non-Powered Wheel Axles 
Front Wheel Hub and Spindle Remove and Install—Non 6WD 
Front Wheel Hub and Spindle Disassemble and Assemble—Non 6WD 
Front Axle Remove and Install—Non 6WD 
Powered Wheel Axles 
Front Wheel Hub and Spindle Remove and Install—6WD 
Front Wheel Hub and Spindle Disassemble and Assemble—6WD 
Front Wheel Hub and Spindle Disassemble and Assemble With Steering Angle Sensor—6WD 
6WD Drive Hub Disassemble and Assemble 
Planetary Drive Disassemble and Assemble 
Planetary Brake Disassemble and Assemble 
6WD Bearings Remove and Install 
6WD O-Ring Metal Face Seal Remove and Install 
Front Axle Remove and Install—6WD 
Axle Shaft, Bearings, and Reduction Gears 
TeamMate™ II 1400 Series Inboard Planetary Axle—Use CTM138619 
Rear Axle Remove and Install 
Tandem and Wheel Axle Assembly Remove and Install 
Tandem Wheel Axle Assembly Remove and Install 
Tandem Wheel Axle Assembly Disassemble and Assemble 
Tandem Pivot Disassemble and Assemble 
Final Drive Axle Remove and Install 
Tandem Drive Shaft Remove and Install 
Drive Chain Remove and Install 
Hydraulic System 
Six-Wheel Drive (6WD) Pump Remove and Install 
MACHINE PREPARATION 
REMOVAL 
INSTALLATION 
6WD Pump Disassemble and Assemble 
DISASSEMBLE 
ASSEMBLE 
6WD Charge Pump Remove and Install 
6WD Engagement Manifold Remove and Install 
Differential Lock Pump Remove and Install 
6WD Motor Remove and Install 
6WD Motor Disassemble and Assemble 
Transmission 
Removal and Installation 
Transmission Remove and Install 
DF180 Transmission 
Hydraulic System 
Transmission Charge Pump Remove and Install 
Engine 
Removal and Installation 
John Deere Engine 
Engine Remove and Install 
REMOVAL 
INSTALLATION 
Flywheel Housing Remove and Install 
Engine Auxiliary System 
Cooling System 
Fan Blade Remove and Install 
MACHINE PREPARATION 
REMOVAL 
INSTALLATION 
Radiator Remove and Install 
Machine Preparation 
Hydraulic Oil Cooler Remove and Install 
REMOVAL 
INSTALLATION 
Transmission and Differential Oil Cooler Remove and Install 
Machine Preparation 
Fuel Cooler Remove and Install 
REMOVAL 
INSTALLATION 
Charge Air Cooler Remove and Install 
REMOVAL 
INSTALLATION 
External Exhaust System 
Exhaust Tube Remove and Install 
Removal 
Installation 
Diesel Oxidation Catalyst (DOC) Remove and Install 
Machine Preparation 
Removal 
Installation 
Diesel Particulate Filter (DPF) Remove and Install 
Machine Preparation 
Removal 
Installation 
Outlet Cone Remove and Install 
Machine Preparation 
Removal 
Installation 
Exhaust Filter Structure Remove and Install 
REMOVAL 
INSTALLATION 
Service Filter Cleaning 
Selective Catalyst Reduction (SCR) Remove and Install 
Torque Specifications 
Weight Specifications 
Machine Preparation 
Additional Information 
Diesel Exhaust Fluid (DEF) Tank Remove and Install 
Diesel Exhaust Fluid (DEF) Tank Header Remove and Install 
MACHINE PREPARATION 
REMOVAL AND INSTALLATION 
Diesel Exhaust Fluid (DEF) Tank Header Disassemble and Assemble 
Diesel Exhaust Fluid (DEF) Baffle Remove and Install 
Diesel Exhaust Fluid (DEF) Tank Header Suction Filter Remove and Install 
Diesel Exhaust Fluid (DEF) Tank Cleaning Procedure 
Cleaning Procedure—DEF Tank Removed 
Cleaning Procedure—DEF Tank Installed 
Diesel Exhaust Fluid (DEF) Dosing Unit Remove and Install 
Removal 
Installation 
Coolant Control Valve Remove and Install 
MACHINE PREPARATION 
REMOVAL 
INSTALLATION 
Diesel Exhaust Fluid (DEF) Dosing Injector Remove and Install 
Diesel Exhaust Fluid (DEF) Decomposition Tube Remove and Install 
External Fuel Supply Systems 
Fuel Tank Remove and Install 
Fast Fill Fuel System Disassemble and Assemble—If Equipped 
DISASSEMBLE 
Additional Information 
ASSEMBLE 
Torsional Isolator 
Elements 
Torsional Isolator Remove and Install 
Steering System 
Power Steering 
Toe-In Check and Adjustment 
Hydraulic System 
Steering Wheel, Column, and Valve Remove and Install—Standard Controls 
Steering Wheel, Column, and Valve Remove and Install—EH Controls 
EH Controls Steering Canceling Valve Remove and Install 
Steering Valve Disassemble and Assemble 
Steering Cylinder Remove and Install 
Hydraulic Cylinder Disassemble and Assemble 
Wheel Lean Cylinder Remove and Install 
Secondary Steering Accumulator Remove and Install—If Equipped 
Service Brakes 
Active Elements 
Service Brake Repair 
Hydraulic System 
Service Brake Valve Remove and Install 
Service Brake Bleeding 
Brake Accumulator Remove and Install 
Park Brake 
Active Elements 
Park Brake Repair 
Electrical System 
Removal and Installation 
Controller Remove and Install 
Auxiliary Valve Controller (AVC) 
Engine Control Unit (ECU) 
Vehicle Control Unit (VCU) 
Hydraulic Valve Controller (HVC) 
Transmission Control Unit (TCU) 
Steering Angle Sensor Remove and Install 
MACHINE PREPARATION 
REMOVAL 
INSTALLATION 
Replace Weather Pack™ Connector 
Install Weather Pack™ Contact 
Replace DEUTSCH® Connectors 
Replace DEUTSCH® Rectangular or Triangular Connectors 
Install DEUTSCH® Contact 
Replace (Pull Type) Metri-Pack™ Connectors 
Replace (Push Type) Metri-Pack™ Connectors 
Replace Connectors 
Install INCH Contact 
Repair 32 and 48 Way CINCH® Connectors 
Frame or Supporting Structure 
Frame Installation 
Welding On Machine 
Welding Repair of Major Structure 
Separate Frames at Articulation Joint 
Articulation Bearing Replacement 
Rear Platform Remove and Install 
Operator`s Station 
Removal and Installation 
Cab Remove and Install 
Cab Remove and Install—GP Machine Only 
Operator Enclosure 
Windowpanes Remove and Install 
REMOVAL 
INSTALLATION 
Cab Door Handle Remove and Install 
Cab Door Latch Remove and Install 
Rivet Nut Installation 
Remove Rivet Nut 
Install Rivet Nut 
Wiper Arm Installation 
Front Wiper Arm Installation 
Lower Front Wiper Arm Installation 
Rear Wiper Arm Installation 
Pedal Assembly 
Inching Pedal Remove and Install 
Steering Tilt Console 
Steering Support Console Remove and Install—Standard Controls 
Steering Support Console Remove and Install—EH Controls 
Console Tilt Remove and Install 
Steering Tilt Assembly Remove and Install 
Seat and Seat Belt 
Seat Remove and Install 
Seat Belt Remove and Install 
Armrest Remove and Install 
Armrest Remove and Install—EH Controls 
Armrest Disassemble and Assemble—EH Controls 
Standard Seat Disassemble and Assemble 
Deluxe Seat Disassemble and Assemble 
Air Suspension Disassemble and Assemble 
Heating and Air Conditioning 
R134a Refrigerant Cautions and Proper Handling 
Flush and Purge Air Conditioning System 
Procedure Set-Up 
Evaporator Flush and Purge 
Procedure Wrap-Up 
R134a Refrigerant Oil Information 
R134a Refrigerant Recovery, Recycling, and Charging Station Installation Procedure 
Recover R134a Refrigerant 
Evacuate R134a System 
Charge R134a System 
Expansion Valve Remove and Install 
Freeze Control Switch Remove and Install 
Heater Control Valve Remove and Install 
Blower Motor Assembly Remove and Install 
Compressor Remove and Install 
Condenser Remove and Install 
Heater and Air Conditioner Remove and Install 
Receiver-Dryer Remove and Install 
Heater Control Valve Leak Check 
Sheet Metal and Styling 
Engine Enclosure 
Engine Service Doors and Side Shields Remove and Install 
REMOVAL 
INSTALLATION 
Engine Covers Remove and Install 
Grille and Grille Housing 
Grille Housing Remove and Install 
Removal 
Installation 
Main Hydraulic System 
Hydraulic System 
Vacuum Pump Installation 
Hydraulic Pump Remove and Install 
Hydraulic Pump Disassemble and Assemble 
Hydraulic System Manifold Remove and Install 
Hydraulic System Manifold Disassemble and Assemble 
Soft Start Valve Remove and Install 
Hydraulic Fan Pump Remove and Install 
Torque Specifications 
Weight Specifications 
Machine Preparation 
Additional Information 
Hydraulic Fan Motor Remove and Install 
Hydraulic Fan Valve Remove and Install 
Machine Preparation 
Additional Information 
Hydraulic Attenuator Remove and Install 
Torque Specifications 
Machine Preparation 
Additional Information 
Hydraulic Oil Tank Remove and Install 
Removal 
Installation 
General Oil Cleanup Procedure 
Hydraulic Component Failure Cleanup Procedure 
Grading Device 
Controls Linkage 
Control Linkage Remove and Install 
Frames 
Lift Arms Remove and Install 
Saddle Locking Cylinder Remove and Install 
Saddle Locking Pin Disassemble and Assemble 
Saddle Frame Remove and Install 
Blade Pitch Frame Remove and Install 
Draft and Circle Frame Remove and Install 
Circle Adjustment 
Blade Side Shift Wear Inserts Remove and Install 
Circle Gearbox 
Circle Drive Gearbox Remove and Install 
Dual Input Circle Drive Gearbox Remove and Install—If Equipped 
Circle Drive Gearbox Disassemble and Assemble 
Circle Drive Gear Case (With Slip Clutch) Disassemble and Assemble 
Dual Input Circle Drive Gearbox Disassemble and Assemble—If Equipped 
Disassemble 
Assemble 
Dual Input Circle Drive Gear Case (With Slip Clutch) Disassemble and Assemble—If Equipped 
Disassemble 
Assemble 
Circle Rotate Motor Disassemble and Assemble 
Circle Rotate Sensor Remove and Install 
Worm Gear Inspection 
Hydraulic System 
Grader Control Valve Remove and Install 
Draft Frame Mount Grader Control Valve Remove and Install—EH Controls 
Cab Mount Grader Control Valve Remove and Install—EH Controls 
Grader Control Valve Disassemble and Assemble 
Midmount Scarifier Valve Section Disassemble and Assemble 
Midmount Scarifier Valve Section Disassemble and Assemble—EH Controls 
Blade Lift Valve Section Disassemble and Assemble 
Blade Lift Valve Section Disassemble and Assemble—EH Controls 
Auxiliary (With Float) Valve Section Disassemble and Assemble 
Auxiliary (Without Float) Valve Section Disassemble and Assemble 
Auxiliary Valve Section Disassemble and Assemble—EH Controls 
Wheel Lean, Articulation, Circle Side Shift, Blade Pitch, and Blade Side Shift Valve Section Disassemble and Assemble 
Wheel Lean, Articulation, Circle Side Shift, Blade Pitch, Blade Side Shift, and Steering Valve Section Disassemble and Assemble—EH Controls 
Circle Rotate Valve Section Disassemble and Assemble 
Circle Rotate Valve Section Disassemble and Assemble—EH Controls 
Return Check Poppets Disassemble and Assemble 
Rotary Manifold Remove and Install 
Rotary Manifold Disassemble and Assemble 
DISASSEMBLE 
ASSEMBLE 
Blade Lift, Blade Pitch, and Circle Side Shift Cylinders Remove and Install 
Blade Side Shift Cylinder Remove and Install 
Articulation Cylinders Remove and Install 
Ground Conditioning Tool 
Frames 
Midmount Scarifier Remove and Install 
Midmount Scarifier Cylinder Remove and Install 
Ripper Remove and Install 
Ripper Cylinders Remove and Install 
Dealer Fabricated Tools 
Dealer Fabricated Tools 
DF1057—Axle Adjusting Tool 
DFT1151—Outboard Bearing Driver 
DFT1152—Inboard Bearing Driver 
DFT1225—Rolling Torque Measurement Tool 
DFT1282—King Pin Torque Adapter 
DFT1310—Cab Mount Control Valve Support Bracket 
DFT1376 Fan Hub Puller 
DFT1380 Lift Bracket 
DFT1382 Lift Bracket 
DFT1382-1 Attachment