Target Audience:
Owners and technicians looking for comprehensive, factory-level repair information for the IH 986 tractor.
Authenticity:
Actual Genuine Repair Service Factory Manuals, not 3rd party alternatives.
Content Source:
Official full factory service repair manual.
User Experience:
Easy to view and print, designed to guide owners through maintenance and repair without requiring advanced computer skills.
Engine:
Detailed coverage of the engine, including maintenance, diagnostics, and repair.
Lubrication System:
Complete information on the lubrication system, including component servicing and fluid recommendations.
Cooling System:
In-depth coverage of the cooling system, including radiator, thermostat, and pump service.
Fuel System:
Comprehensive details on the fuel system, including carburetor/injection system, fuel lines, and filters.
Disassembly Servicing:
Step-by-step procedures for disassembly and servicing of various tractor components.
General Information:
Broad coverage of general information pertinent to the tractor's operation and maintenance.
Separation:
Procedures for separating major tractor assemblies for repair or maintenance.
Clutch:
Detailed servicing and repair of the clutch system.
Transmission:
Comprehensive coverage of transmission components, operation, and repair.
Drive Chain Sprockets:
Maintenance and repair of the drive chain and sprocket systems.
Rear Axle:
Detailed procedures for servicing the rear axle assembly.
Brakes:
In-depth coverage of the brake system, including diagnostics and repair.
Front Axle:
Servicing and repair of the front axle components.
Steering:
Complete information on the steering system, including hydraulic and mechanical components.
Shocks:
Information related to shock absorbers and suspension components.
Body Work:
Coverage for body panel repair, alignment, and related maintenance.
Intake Exhaust:
Details on intake and exhaust manifold servicing and repair.
Hydraulic System:
Comprehensive coverage of the hydraulic system, including pumps, cylinders, and control valves.
Electrical System:
Detailed diagnosis and repair of the electrical system, including starting, charging, and lighting.
Routine Maintenance:
Specific guidance on routine maintenance tasks and schedules.
Troubleshooting:
Advanced troubleshooting guide to diagnose and resolve common and complex issues.
Wiring Diagrams:
Detailed wiring diagrams for the tractor's electrical system.
Repair Procedures:
All diagnostic and repair procedures are covered in great detail.
Maintenance Procedures:
Step-by-step guidance for all maintenance tasks.
Rebuild Procedures:
Procedures for rebuilding major components and systems.
Restoration Procedures:
Information useful for restoring the tractor to its original condition.
Depth:
Covers information used by factory-trained technicians and professional mechanics.
Detail Level:
Highly detailed, with substeps, notes, cautions, and warnings.
Engine Model:
Not explicitly stated in product info, but likely a D-series or DT-series International Harvester engine (e.g., D-358, DT-402).
Horsepower:
Varies by specific engine configuration and year, but typically in the 80-100 PTO horsepower range.
Torque:
Specific torque figures depend on the engine model; manual would provide these details.
Injection System:
Details on the specific injection pump and injector servicing would be covered.
Instrument Cluster:
Basic analogue gauges for engine RPM, oil pressure, coolant temperature, and fuel level.
Power Steering:
Hydraulic power steering system for ease of operation.
Electrical System Functionality:
12-volt electrical system for starting, charging, lighting, and auxiliary functions.
Engine Oil Change:
Manual will specify recommended intervals, typically every 100-200 operating hours depending on oil type and usage. (e.g., 100 hours for standard, 200 for premium synthetics).
Hydraulic Fluid Change:
Manual will detail recommended intervals, often annually or every 250-500 operating hours.
Engine Oil:
Manual will specify SAE viscosity grade (e.g., SAE 15W-40 or SAE 30) and API service classification (e.g., CD or CE).
Hydraulic Fluid:
Manual will specify type, such as IH Hy-Trans, UTF (Universal Tractor Fluid), or specific petroleum-based hydraulic oils, and viscosity grade (e.g., 10W-30).
Coolant:
Manual will detail the correct coolant mixture (e.g., 50/50 ethylene glycol and water) and any specific additives.
Common Wear Items:
Manual would guide on common wear items like clutch plates, brake components, hydraulic seals, and fuel injectors.
Troubleshooting Common Problems:
The troubleshooting section is designed to address common issues like starting problems, hydraulic leaks, or transmission engagement issues.
