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International Harvester

INTERNATIONAL HARVESTER 986 1086 tractor Service Repair Manual

INTERNATIONAL HARVESTER 986 1086 tractor Service Repair Manual

$16.99
$16.99
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Machine data plateRef 155103
Brand
International Harvester
Equipment
Tractors
Models covered
986
Format
PDF, searchable, print-ready
Delivery
Instant download after checkout
Language
English

What happens after you pay

  • Download link opens on the order page immediately
  • The same link is emailed to you — re-download any time
  • Open on phone, tablet or PC; print only the pages you need
  • Not sure it covers your serial range? Ask us before you buy
🏷️ Basic Information
Identification
Make:
International Harvester
Model:
986 / 1086
Model Variant:
Tractor
Production Years Covered:
1976-1981
👋 Introduction
Market Position
Target Audience:
Farmers, agricultural mechanics, tractor restoration enthusiasts, and service technicians working with International Harvester 986 and 1086 tractors.
Competitive Analysis
Advantage:
Offers comprehensive, actionable information in a readily accessible PDF format, distinct from limited or outdated physical manuals. Focuses on practical repair guidance with clear illustrations and detailed specifications.
Key Features
Features:
Instant PDF download, printable pages, detailed procedures, clear illustrations, troubleshooting guidance, service data, and torque specifications.
📋 Manual Details
Coverage Areas
Manual Scope:
Comprehensive repair and maintenance for International Harvester 986 and 1086 tractors.
Coverage Detail:
Covers all major mechanical, hydraulic, and electrical systems, including troubleshooting and repair of the engine, transmission, PTO, hydraulics, steering, and brakes.
Manual Specifications
Page Count:
96
Manual Type:
Workshop Service Manual
Language:
English
Format:
PDF - Digital Download
📖 Manual Coverage
Systems Covered
Engine Systems:
Engine overhaul, cylinder head, piston and rod assembly, crankshaft and bearings, camshaft, timing gears, lubrication system, cooling system, fuel system (injection pump, injectors).
Transmission Drivetrain:
Power shift transmission components, clutch operation, differential, final drives, PTO engagement and operation.
Hydraulics Systems:
Hydraulic pump, control valves, lift arms, remote cylinders, hydraulic fluid reservoir, troubleshooting hydraulic pressure issues.
Electrical Systems:
Starter, alternator, battery, ignition system (if applicable for older models or specific configurations), lighting, dashboard indicators, wiring diagrams.
Chassis Steering Brakes:
Front axle, rear axle, steering system (hydrostatic power steering), brake system (wet disc brakes), wheel bearings.
Operator Station:
Seat assembly, controls (throttle, clutch, gear shift), dashboard, cab components (if equipped).
Procedures Included
Maintenance Procedures:
Routine checks, lubrication schedules, filter replacement intervals, fluid level checks and top-offs.
Repair Procedures:
Detailed disassembly and reassembly of major components, component replacement, and adjustment procedures.
Troubleshooting Diagnosis:
Systematic diagnostic flowcharts and procedures for identifying and resolving common operational problems.
Special Tool Usage:
References to specific International Harvester service tools required for certain operations, with accompanying illustrations.
Adjustment Procedures:
Includes adjustments for clutch engagement, brake sensitivity, hydraulic control valves, and engine timing.
Technical Depth
Technical Depth:
Detailed step-by-step procedures, explanations, pictorial diagrams, exploded diagrams, and photos. Includes service tool references, wear limits, tightening torques, and factory specifications.
Repair Methodology:
Emphasizes a systematic approach to repair, including preliminary checks, fault diagnosis, component removal, repair procedures, assembly, and final adjustments with performance verification.
Diagrams Illustrations:
Richly illustrated with exploded views, line drawings, and photographs to clarify complex procedures and component identification.
Parts Information
Torque Specifications:
Factory specified tightening torques for critical fasteners.
Wear Limits:
Factory wear limits for components to determine serviceability.
Maintenance Schedules:
Recommended service intervals for lubrication, filters, and fluids.
📊 Manual Specifications
File Format
File Type:
PDF
Compatibility:
Compatible with Windows, Mac, and Linux operating systems.
Requirements:
Adobe Reader required for viewing and printing.
Searchability:
PDF format allows for text searching within the document.
Print Quality
Print Quality:
Printable, all pages
Binding Type
Binding Type:
N/A - Digital Download
Paper Type
Paper Type:
N/A - Digital
⚙️ Engine Specifications
Engine Options
Engine Options:
DT-402, DT-436, or DT-466 diesel engines
Performance
Horsepower Range:
Substantial horsepower and torque suitable for a wide range of farm operations.
Fuel System
Fuel System Type:
Diesel, direct injection
🔧 Transmission
Transmission Options
Standard Transmission:
N/A - not specified for this model
Optional Transmission:
Power shift transmission (available as option or standard on some models)
Features:
Power shift transmission components, clutch operation, differential, final drives, PTO engagement and operation.
📐 Dimensions
Exterior
Wheelbase:
N/A - not specified in manual
Length:
N/A - not specified in manual
Weights
Curb Weight:
N/A - not specified in manual
🛡️ Safety Features
Ratings
Crash Test Rating:
Not applicable - off-highway tractor
Active Features
Active Safety Features:
Wet disc brakes, hydrostatic power steering
Passive Features
Passive Safety Features:
N/A - not specified for this model
💡 Technology Features
Infotainment
Audio System:
N/A - not equipped or not specified for this era
Driver Assistance
Assistance Features:
N/A - not specified for this model
🔧 Maintenance
Service Intervals
Service Intervals:
Refer to manual for routine checks, lubrication schedules, filter replacement intervals, and fluid level checks.
Fluid Specifications
Fluid Specifications:
Factory specifications provided in manual for hydraulic fluid, engine oil, coolant, and transmission fluid.
Known Issues
Common Wear Items:
Hydraulic seals, clutch plates, filters, belts, and other wear-prone components.
📚 Vehicle History
Brand Heritage
Manufacturer:
International Harvester
Model Evolution
Model Overview:
Part of the IH '86 series' produced from 1976 to 1981, designed for heavy-duty agricultural work.
Production Location
Production Location:
N/A - not specified
🏆 Awards & Recognition
Recognition
Awards:
N/A - no awards listed

Delivery & file format

This is a digital PDF download, not a printed book. After payment the download link appears on your order confirmation page and is emailed to the address you entered. Files open in any PDF reader on phone, tablet or computer and can be printed.

Check the serial range before you buy

Manufacturers change procedures and part numbers by serial-number break. If your data plate shows a serial prefix that is not listed above, contact us with the model and serial number and we will confirm coverage before you order.

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  • Print-ready PDF Searchable text, print the pages you need for the workshop.
  • Phone, tablet, PC Open it in the cab, the workshop or the office.