John Deere 670, 770, 790, 870, 970, 1070 Compact Utility Tractors Technical Manual (TM1470)

John Deere 670, 770, 790, 870, 970, 1070 Compact Utility Tractors Technical Manual (TM1470 15MAR99)

This comprehensive technical manual delivers full-scale service procedures and operational diagnostics for John Deere 670 through 1070 compact utility tractors. Structured by system, the manual covers engine repair and diagnostics, transmission service, power train disassembly, hydraulic circuit troubleshooting, electrical systems analysis, steering, braking, and PTO mechanisms. Engine theory, sensor testing, and mechanical specifications are presented in detail for precise servicing.

Model Covers:

John Deere 670, 770, 790, 870, 970, 1070 Compact Utility Tractors

File Format: PDF

Size: 49.91 MB

No. of pages: 1020

Language: English

Delivery Method: Instant Download – Access your file immediately after purchase.

📑 Included Sections:

General Information and Specifications

• Machine and repair specifications by model
• Engine oil, coolant, transmission specs
• Serial number locations and standard features

Engine Systems

• Engine removal and reinstallation
• Cooling, throttle, fuel and intake system service
• Detailed diagnosis for starting, smoking, and power loss issues

Electrical Systems

• Component location, wiring schematics
• Starter, alternator, solenoids, lighting, instrumentation
• Complete system testing with test points and procedures

Transmission and Power Train

• Clutch housing, gear shift, PTOs, differential, final drive
• MFWD systems, collar shift, and synchronized power flow
• Theory of operation, tests, and mechanical adjustments

Hydraulics, Steering, and Brakes

• Rockshaft systems, SCV valves, auxiliary lines
• Manual and power steering diagnostics and tests
• Brake pedal adjustments and system pressure analysis

Diagnostics and Component Testing

• Fuel and air system leakage tests
• Compression, injection, cooling system and oil pressure checks
• Clutch and PTO linkage adjustments and component isolation

This John Deere 670-1070 Compact Utility Tractors Technical Manual is a highly detailed workshop resource built for professional diagnostics, mechanical testing, and full-service repairs.