This manual covers the International Harvester (IH) 666 and 686 tractor models, known for their robust construction and reliability in agricultural applications. These tractors, typically produced in the late 1960s and 1970s, represent a significant era in farm mechanization. The International Harvester brand carries a legacy of durable and practical machinery, and the 666 and 686 models were integral to this reputation, offering dependable performance for farming and heavy-duty tasks. This workshop service repair manual is designed to provide comprehensive information for maintaining and repairing these esteemed machines.
The purpose of this manual is to serve as a complete guide for owners, technicians, and enthusiasts working on IH International Harvester 666 and 686 tractors. It details engine overhaul for both Diesel and Non-Diesel variants, fuel systems, cooling, and governor functions. Drivetrain coverage includes clutch, transmission, Torque Amplifier, Direction Reverser, differential, and final drive systems. Furthermore, the manual addresses brakes, steering, electrical systems, PTO, and hydraulic components. With detailed technical instructions, diagrams, troubleshooting guides, and essential specifications, this manual ensures proper maintenance, repair, and optimal performance of your tractor.
This IH International Harvester 666 and 686 Diesel & Non-Diesel Tractor Shop Manual includes needed instructions to maintain and service your Tractor using diagrams and manufacturers specifications.
IMPROVED PDF MANUALS HAVE: Bookmarks, Searchable Text, Index and Improved Quality.
Navigation is simple with convenient bookmarks and ability to search by keyword.
Print out entire manual or just what you'll be working on.
* INSTANT DOWNLOAD - NO WAITING
* LANGUAGE: English
* FORMAT: PDF
* COMPATIBLE: Win/ Mac
* BOOKMARKED - INDEXED - SEARCHABLE
Fully Bookmarked for easy navigation allowing you to identify the exact service repair procedures in the quickest time possible.
Some of the topics covered in this Shop manual:
- Belt Pulley
- Brakes
- Carburetor
- Clutch
- Cooling System
- Diesel Fuel System
- Differential
- Direction Reverser
- Electrical System
- Engine
- Final Drive
- Front System
- Governor
- Hydraulic System
- Hydrostatic Drive
- LP Gas System
- Power Steering System
- Power Takeoff
- Service Data
- Steering Gear
- Torque Amplifier
- Transmission Range
- Transmission
Great for tune-ups, regular maintenance or repairs.
Technical details and step-by-step instructions you will need are included.
All on an Easy to read PDF file.
Manual can be viewed on any computer, as well as zoomed and printed.
Why pay big bucks to have someone else print it for you?
Print what you need when you need it!
Stop ruining your paper copy manual.
Simply find the page you are looking for, print it off, then toss it once you've finished your work.
***************************************************************************************************
CLICK THE DOWNLOAD NOW BUTTON - TO GET THIS MANUAL - IMMEDIATELY -
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Additional Information:
PDF documents may require the newest version of Acrobat Reader to display correctly. Should you have any problems reading your document, please initially try upgrading to the latest version of Adobe Acrobat Reader.
We have Thousands of Manuals - email us about any you might need.
This IH International Harvester 666 and 686 Diesel & Non-Diesel Tractor Shop Manual includes needed instructions to maintain and service your Tractor using diagrams and manufacturers specifications.
IMPROVED PDF MANUALS HAVE: Bookmarks, Searchable Text, Index and Improved Quality.
Navigation is simple with convenient bookmarks and ability to search by keyword.
Print out entire manual or just what you'll be working on.
* INSTANT DOWNLOAD - NO WAITING
* LANGUAGE: English
* FORMAT: PDF
* COMPATIBLE: Win/ Mac
* BOOKMARKED - INDEXED - SEARCHABLE
Fully Bookmarked for easy navigation allowing you to identify the exact service repair procedures in the quickest time possible.
Some of the topics covered in this Shop manual:
- Belt Pulley
- Brakes
- Carburetor
- Clutch
- Cooling System
- Diesel Fuel System
- Differential
- Direction Reverser
- Electrical System
- Engine
- Final Drive
- Front System
- Governor
- Hydraulic System
- Hydrostatic Drive
- LP Gas System
- Power Steering System
- Power Takeoff
- Service Data
- Steering Gear
- Torque Amplifier
- Transmission Range
- Transmission
Great for tune-ups, regular maintenance or repairs.
Technical details and step-by-step instructions you will need are included.
All on an Easy to read PDF file.
Manual can be viewed on any computer, as well as zoomed and printed.
Why pay big bucks to have someone else print it for you?
Print what you need when you need it!
Stop ruining your paper copy manual.
Simply find the page you are looking for, print it off, then toss it once you've finished your work.
***************************************************************************************************
CLICK THE DOWNLOAD NOW BUTTON - TO GET THIS MANUAL - IMMEDIATELY -
***************************************************************************************************
Additional Information:
PDF documents may require the newest version of Acrobat Reader to display correctly. Should you have any problems reading your document, please initially try upgrading to the latest version of Adobe Acrobat Reader.
We have Thousands of Manuals - email us about any you might need.
