The International Harvester 1086 Tractor, produced approximately between 1977 and 1981, is a robust piece of agricultural machinery known for its reliable performance and powerful DT-466 Diesel engine, delivering around 133 PTO horsepower. As part of the respected 86-series, this tractor builds upon a legacy of quality engineering from International Harvester, a prominent American manufacturer. Its design emphasizes operational efficiency and durability, featuring a 16-speed Power-Shift transmission with on-the-go shifting capabilities, making it a versatile tool for a wide range of farming tasks. This model is engineered to be a dependable workhorse, built to withstand demanding agricultural environments.
This workshop service manual provides comprehensive guidance for the International Harvester 1086 Tractor. It covers essential maintenance procedures, detailed repair instructions, troubleshooting steps, and technical specifications across all major systems, including the engine, transmission, hydraulics, electrical system, drivetrain, steering, braking, cooling, fuel, operator station, PTO, and axles. The manual is written in English and designed for both professional technicians and DIY mechanics, offering detailed diagrams and information to ensure accurate diagnostics and effective repairs. Its extensive coverage aims to empower users to maintain and repair their tractor efficiently, saving time and labor costs.
Make:
International Harvester
Product Type:
Workshop Service Manual
Product Format:
PDF Download
Target Audience:
Professional Technicians, DIY Mechanics, Owners
Value Proposition:
Empowers owners and technicians to perform their own repairs and maintenance, saving money on labor costs and ensuring proper upkeep of the valuable machinery.
Advantage:
Instant download provides immediate access, saving time and shipping costs. Printable sections allow for focused use and easy disposal of soiled pages.
Source:
Original Workshop Manual, Written by Manufacturers
Accuracy:
Most accurate and complete available service information
User Friendliness:
Written in an easy-to-follow manner, suitable for professional technicians and DIY mechanics.
Primary Coverage:
International Harvester 1086 Tractor
Estimated Page Count:
Hundreds of pages (specific number not provided, but described as extensive)
Type:
Workshop Service Manual / Repair Manual
Delivery Method:
Instant Download
Electrical System:
Yes (including wiring diagrams)
Front Wheel Drive Axle:
Yes (if equipped with MFWD - Mechanical Front Wheel Drive)
Maintenance:
Yes (periodic maintenance charts)
Repair:
Yes (step-by-step repair instructions)
Overhaul:
Yes (engine overhaul procedures mentioned as example)
Technical Specifications:
Yes
Wiring Diagrams:
Yes, comprehensive wiring diagrams are typically included.
Calibration:
Likely includes calibration procedures for hydraulic systems, PTO, and other control mechanisms.
Depth:
Professional Technicians and DIY Mechanics
Detail Level:
Detailed diagrams and information for specific vehicle repair
Scope:
Covers routine maintenance to major overhauls, providing depth for both novice and experienced users.
Searchability:
Likely searchable due to PDF format, enhancing ease of use for finding specific information.
Printable:
Full Printable
Zoom Functionality:
YES (Zoom IN/OUT)
Binding:
N/A (Digital Download)
Paper Type:
N/A (Digital Download)
Software Requirements:
Adobe PDF Reader & WinRAR
Compatibility:
All Versions of Windows & Mac
Engine Family:
DT-466 Diesel (commonly found in 1086, though specific engine variant not detailed in product info)
Horsepower:
Approx. 133 PTO HP (varies by specific configuration)
Torque:
Refer to manual for specific torque figures
Injection Type:
Direct Injection (refer to manual for specific type)
Displacement:
466 cubic inches (7.6 L) (for DT-466)
Engine Model Designation:
DT-466 (Diesel Turbocharged 466 cubic inch)
Transmission Type:
16-speed Power-Shift (commonly known as "Power-Shift" or "Trans-Gear")
Optional Transmission:
Not specified in product info, standard transmission is the focus.
Gear Selection:
Provides 16 forward and 4 reverse gears with on-the-go shifting capabilities.
Transmission Fluid Type:
Refer to manual for specific IH Hy-Tran fluid specifications or equivalent.
Wheelbase:
Refer to manual for specific dimensions.
Operating Weight:
Refer to manual for specific weight figures and ballast recommendations.
Safety Features:
Manual will detail safety procedures and operation of safety-related systems.
Infotainment System:
N/A (Agricultural tractor, focus is on operational efficiency and durability).
Driver Assistance Features:
N/A (Focus on core mechanical and electrical systems for repair and maintenance).
Connectivity Features:
N/A
Engine Oil Change:
Refer to manual for specific intervals (typically based on engine hours).
Hydraulic Fluid Change:
Refer to manual for specific intervals (typically based on engine hours).
Engine Oil Type:
Refer to manual for specific API Service classification and viscosity grade (e.g., SAE 30 or 15W-40 Diesel engine oil).
Coolant Type:
Refer to manual for specific coolant/antifreeze type and mixture ratio.
Hydraulic Fluid Spec:
IH Hy-Tran or equivalent (specific grade and quality to be confirmed in manual).
Transmission Fluid Capacity:
Refer to manual for exact capacity; typically around 15-20 gallons for the main transmission/hydraulic reservoir.
Common Wear Items:
Hydraulic system components, clutch packs (in Power-Shift), engine seals, PTO clutch. Manual will offer diagnostic procedures for these.
Common Repairs:
Power-Shift clutch pack rebuilds, front and rear seal replacements, hydraulic pump and cylinder repairs.
Filter Replacements:
Engine oil filter, fuel filter, hydraulic filter, air filter (specific part numbers and replacement intervals in manual).
Manufacturer:
International Harvester (IH), a prominent American manufacturer of agricultural and construction machinery.
Series:
Part of the 86-series tractors, succeeding earlier popular models.
Production Years:
Approximately 1977-1981
