This comprehensive workshop repair service manual for the IH International Harvester 986 and 1086 tractors provides a wealth of information for maintaining, troubleshooting, and repairing your vehicle. The manual covers all models, engines, trim levels, and transmission types, making it an essential resource for any owner or mechanic. It contains detailed instructions, illustrations, and diagrams for every aspect of your tractor, allowing you to confidently perform a wide range of repairs and maintenance tasks. The manual includes sections on: * **Engine:** Learn about the engine's inner workings, perform maintenance tasks, and troubleshoot common issues. * **Lubrication System:** Understand the importance of proper lubrication and how to maintain the system effectively. * **Cooling System:** Diagnose and repair cooling system problems to ensure optimal engine performance. * **Fuel System:** From fuel lines to injectors, gain expertise in maintaining and repairing the fuel system. * **Disassembly and Servicing:** Learn the proper procedures for disassembling and servicing various components of your tractor. * **General Operations:** Master the fundamentals of operating your tractor safely and efficiently. * **Separation:** Understand the operation and maintenance of the separation system. * **Clutch:** Diagnose and repair clutch problems to ensure smooth gear changes. * **Transmission:** Gain insights into the transmission's inner workings and perform necessary maintenance. * **Drive Chain & Sprockets:** Learn how to inspect, adjust, and replace the drive chain and sprockets. * **Rear Axle:** Understand the rear axle's function and how to maintain it. * **Brakes:** Learn about the braking system and how to ensure its proper operation. * **Front Axle:** Gain knowledge about the front axle's components and maintenance requirements. * **Steering:** Diagnose and repair steering problems for safe and efficient operation. * **Shocks:** Learn about the shock absorbers and how to maintain them. * **Body Work:** Find detailed information on repairing and maintaining the tractor's body. * **Intake & Exhaust:** Understand the role of the intake and exhaust systems and how to perform maintenance. * **Hydraulic System:** Diagnose and repair issues with the hydraulic system. * **Electrical System:** Includes comprehensive wiring diagrams and troubleshooting guidance for the electrical system. * **Routine Maintenance:** Learn essential maintenance procedures to keep your tractor in top condition. * **Advanced Troubleshooting:** Gain expertise in resolving complex technical problems. This manual is written by experts and provides the same information used by professional mechanics, empowering you with the knowledge to handle repairs and maintenance yourself, saving you time and money.

The IH International Harvester 986 and 1086 tractors were workhorses of the agricultural industry, known for their ruggedness, power, and versatility. These models, produced in the 1960s and 1970s, were designed for a wide range of applications, from pulling heavy plows and cultivators to hauling large loads on the farm. The 986 and 1086 were powered by powerful diesel engines, offering impressive torque and horsepower, making them ideal for demanding tasks. The tractors featured a robust design, including a durable frame, strong axles, and reliable transmission systems. They also boasted a comfortable operator station with various features to enhance operator comfort and control. These tractors were highly regarded for their reliability and durability, making them valuable assets for farmers and ranchers who relied on them for sustained productivity. The IH International Harvester 986 and 1086 tractors are highly sought-after machines by collectors and enthusiasts. Their classic design and enduring reputation for performance have made them icons of agricultural machinery. These tractors are well-suited for restoration projects, offering owners the chance to bring these legendary machines back to their former glory. Their rugged construction and durable engines make them capable of handling a variety of tasks, even after decades of use. The availability of parts and support resources for these tractors ensures that they can be kept running for years to come. For those seeking a reliable and powerful piece of agricultural history, the International Harvester 986 and 1086 tractors remain excellent choices.