Segment:
Agricultural Tractors (Heavy Duty)
Comparison Point:
Essential resource for owners and technicians seeking comprehensive maintenance and repair guidance for the IH 986.
Diagnostic Tools:
Integrated troubleshooting and electrical service procedures with wiring diagrams.
Illustration Quality:
Detailed illustrations, drawings, and photos with enlarged insets for part examination.
Instruction Format:
Numbered, step-by-step instructions with bold figure numbers for easy referencing.
Content Structure:
Numbered table of contents for quick information retrieval.
Safety Information:
Notes, cautions, and warnings integrated throughout repair procedures.
Engine:
Comprehensive diagnostics, repair, and rebuild procedures for the engine.
Transmission:
Detailed coverage of transmission repair and maintenance.
Electrical System:
Includes troubleshooting, service procedures, and detailed wiring diagrams.
Hydraulics:
Implied coverage through general repair and diagnostic procedures.
Drivetrain:
Coverage of components related to power transfer.
Chassis And Frame:
Procedures for structural components and associated systems.
Operator Controls:
Maintenance and repair of control systems.
Pto And Hitch:
Likely covered within general repair and maintenance sections.
Maintenance:
Comprehensive service schedules and maintenance procedures.
Repair:
Detailed step-by-step repair instructions for all major components.
Rebuilding:
In-depth procedures for component rebuilding, including engine and transmission.
Refurbishment:
Guidance on restoring components and the tractor's overall condition.
Restoration:
Comprehensive support for full restoration projects.
Diagnostics:
Extensive troubleshooting and diagnostic procedures for all systems.
Target Audience:
Professional technicians and experienced DIY mechanics.
Depth Of Coverage:
Covers everything from basic maintenance to complete engine and transmission rebuilds, with detailed diagnostic procedures.
Printability:
Full Printable (all pages)
Binding:
Digital (downloadable, can be printed and bound)
Paper Type:
N/A (Digital format)
Operating Systems:
All Versions of Windows & Mac
Software:
Adobe PDF Reader & WinRAR
Engine Model Likely:
International Harvester DT-466 (or similar variant)
Engine Type:
Diesel, turbocharged (likely)
Horsepower Estimated:
Approx. 100-115 PTO HP (varies by specific configuration)
Torque Estimated:
Significant torque output for heavy draft work (specific figures vary).
Injection System:
Bosch inline injection pump (typical for this era and engine).
Cooling Type:
Liquid-cooled
Engine Oil Change:
Typically every 250 hours (refer to manual for specific recommendation).
Fuel Filter Replacement:
Regular replacement as per manual, often tied to hours or fuel quality.
Hydraulic Fluid Change:
Typically annually or every 500-1000 hours (refer to manual).
Engine Oil Type:
API CD or CE rated diesel engine oil (e.g., SAE 15W-40 or 10W-30 depending on climate).
Hydraulic Fluid Type:
IH Hy-Tran Plus or equivalent UTF (Universal Tractor Transmission Fluid) meeting IH spec B-6.
Coolant Type:
Ethylene glycol based antifreeze with a suitable corrosion inhibitor package for diesel engines.
Common Wear Items:
Clutch wear, hydraulic pump issues, injector problems, and potential electrical connection corrosion.
Engine Troubleshooting:
Common issues addressed include hard starting, loss of power, and excessive smoke, all detailed in the manual.
Manufacturer:
International Harvester (IH), a major American manufacturer of agricultural and construction equipment.
Series:
Part of the IH '86 series' of tractors, a successful line known for their comfort and performance.
Production Years:
Circa 1976-1981
Manufacturing Location:
United States (e.g., Louisville, Kentucky plant)
