John Deere 670G, 670GP, 672G, 672GP Grader Pdf Diagnostic, Operation and Tests Service Manual TM13024X19

John Deere 670G, 670GP, 672G, 672GP Grader Pdf Diagnostic, Operation and Tests Service Manual - TM13024X19

If your John Deere 670G, 670GP, 672G or 672GP Motor Grader is showing a fault code, losing hydraulic performance, developing a transmission problem, or behaving differently in 6WD, TM13024X19 gives you a structured way to investigate the problem. This diagnostic, operation and test manual is matched to the FT4/S4 machines with PIN ranges F656526–678817 and combines controller diagnostics, operational checkout, system theory, adjustments and tests.

Manual Information

Models	John Deere 670G, 670GP, 672G, 672GP Motor Graders
Manual Number	TM13024X19
PIN Coverage	670G / 670GP / 672G / 672GP: F656526–678817
Emission Configuration	FT4/S4
Publication Revision	09MAR17
Document Type	Diagnostic, Operation and Test Technical Manual
Language	English
Format	PDF
Page Count	Digital editions vary; listings commonly show approximately 1,478–1,540 pages

What TM13024X19 Helps You Diagnose

This is the manual to reach for when the machine symptom does not immediately point to a failed component. It starts with electronic diagnostics and operational checkout, then moves into dedicated testing for the engine, electrical system, 6WD, powertrain, hydraulic system, and cab climate system.

• Controller diagnostics: TCU, ECU, ADU, FLC, HVC, AVC, OC3, HWD, joystick controllers, and VC2 diagnostic trouble codes.
• Engine: operating theory, diagnostic information, adjustments, performance checks, and engine-related testing.
• Electrical system: system information, wiring diagrams, subsystem diagnostics, monitor operation, and diagnostic test-box procedures.
• Six-wheel drive: 6WD theory, diagnostic information, adjustments, and tests for the additional drive system.
• Powertrain: transmission theory, diagnostic procedures, adjustments, and performance tests.
• Hydraulic system: hydraulic theory, circuit information, troubleshooting, adjustments, pressure and performance tests.
• Heating and air conditioning: HVAC diagnosis, refrigerant checks, compressor clutch testing, pressure tests, and heater troubleshooting.

Diagnostic Coverage at a Glance

System	Typical Diagnostic Information
Electronic Controls	DTCs for transmission, engine, display, hydraulic, joystick and vehicle controllers
Engine	Theory of operation, diagnostic information, adjustments and engine tests
Electrical	Wiring diagrams, subsystem diagnostics, monitor functions and diagnostic test-box information
6WD	Six-wheel-drive operation, troubleshooting, adjustments and performance tests
Powertrain	Transmission operation, diagnostic checks, adjustments and testing
Hydraulics	Hydraulic circuits, system diagnosis, adjustments and tests
HVAC	Air-conditioning and heater diagnosis, refrigerant and component tests

670G / 670GP / 672G / 672GP Machine Information

Machine Type	Motor Grader
Engine	John Deere PowerTech diesel, configuration dependent
Drive Configurations	4WD and 6WD configurations depending on model/equipment
Transmission	Electronic powershift drivetrain
Hydraulic System	Load-sensing hydraulic system for steering, blade and machine functions
Diagnostic Network	Multiple electronic controllers connected through the machine communication network

Why the 6WD Diagnostic Section Matters

The 670G-family graders can be equipped with six-wheel drive, adding another layer to troubleshooting when traction, drive response, or hydraulic control is not behaving correctly. TM13024X19 has a dedicated Section 9016 — Six Wheel Drive covering its theory of operation, diagnostic information, adjustments, and tests.

Electrical Troubleshooting Without Guesswork

Electrical problems on a modern motor grader can involve a controller, sensor, communication circuit, harness, or input/output device rather than the component that first appears to be at fault. TM13024X19 includes system diagrams, subsystem diagnostics, monitor operation, diagnostic test-box information, and controller-specific DTC sections to help narrow down these faults before replacing parts.

Diagnostic Manual vs. Repair Manual

TM13024X19 is the diagnostic and testing publication. It is intended for identifying faults, checking machine operation, performing adjustments, and verifying system performance. The companion TM13025X19 is the repair technical manual for the same F656526–678817 model range and is used for component removal, disassembly, repair, and reassembly.

PDF Manual Features

• English-language John Deere motor grader diagnostic manual
• Searchable and bookmarked PDF
• Diagnostic trouble code information
• Electrical wiring diagrams and system schematics
• Operational checkout procedures
• Engine, 6WD, powertrain and hydraulic tests
• HVAC diagnostic and testing procedures
• Printable pages for workshop reference
• Zoom in/out for detailed diagrams
• Instant PDF access after purchase
• Easy to save and reference during troubleshooting
• Lifetime access to the purchased manual

Frequently Asked Questions

Which John Deere graders does TM13024X19 cover?

TM13024X19 covers the 670G, 670GP, 672G and 672GP Motor Graders within the identified F656526–678817 PIN range.

Does TM13024X19 include diagnostic trouble codes?

Yes. Dedicated diagnostic sections cover multiple controllers, including the TCU, ECU, ADU, FLC, HVC, AVC, OC3, HWD, joystick controllers and VC2.

Does the manual cover six-wheel drive?

Yes. A dedicated 6WD section provides theory of operation, diagnostic information, adjustments and tests.

Can this manual be used for hydraulic troubleshooting?

Yes. The hydraulic section includes system theory, diagnostic information, adjustments and tests for investigating hydraulic performance and control problems.

Is TM13024X19 the repair manual?

No. TM13024X19 is the Diagnostic, Operation and Test Technical Manual. The related repair publication for this PIN range is TM13025X19.