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International Harvester

IH International Harvester 986 1086 Repair Service Manual

IH International Harvester 986 1086 Repair Service Manual

$16.99
$16.99
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Vehicle data plateRef 75716
Brand
International Harvester
Vehicle
Tractors
Models covered
1086, 986, Agriculture, IH International
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 model year? Ask us before you buy
🏷️ Basic Information
Identification
Make:
International Harvester
Model:
986 / 1086
Codes
Vehicle Type:
Tractor
👋 Introduction
Market Position
Target Audience:
Owners, operators, and mechanics of IH International Harvester 986 and 1086 tractors.
Key Features
Comprehensiveness:
Complete and intact, covering all models, engines, trim, and transmission types without missing or corrupt parts.
Professional Quality:
Same quality manual used in local service/repair shops, written by manufacturers.
Cost Savings:
Enables users to perform repairs and maintenance themselves, saving significant costs.
Accessibility:
Instant download provides immediate access to crucial repair information.
Usability:
Features step-by-step instructions, diagrams, pictures, and detailed explanations for ease of use.
📋 Manual Details
Coverage Areas
Primary Models Covered:
IH International Harvester 986, IH International Harvester 1086
All Models Trims Transmissions Engines:
True
Page Count
Estimated Page Count:
Hundreds of pages
Manual Type
Type:
Workshop Repair Service Manual
Language
Language:
English
Format
Format:
PDF Download
📖 Manual Coverage
Systems Covered
Engine Service:
Detailed service, maintenance, and troubleshooting for all engine types.
Lubrication System:
Comprehensive coverage of the lubrication system.
Cooling System:
Detailed information on the cooling system.
Fuel System:
Service and maintenance for the fuel system.
Clutch Service:
Complete procedures for clutch disassembly and service.
Transmission Service:
In-depth repair and maintenance for the transmission.
Drive Chain Sprockets:
Service and maintenance for drive chains and sprockets.
Rear Axle Service:
Detailed axle repair and maintenance.
Brake System:
Complete brake service and repair procedures.
Front Axle Service:
Front axle service and repair information.
Steering System:
Service and troubleshooting for the steering system.
Shocks Suspension:
Information related to shock absorbers and suspension.
Body Work:
Procedures for body work and related components.
Intake Exhaust Systems:
Maintenance and repair for intake and exhaust systems.
Hydraulic System:
Comprehensive coverage of the hydraulic system.
Electrical System:
Service and troubleshooting for the electrical system, including wiring diagrams.
Routine Maintenance:
Detailed instructions for routine maintenance tasks.
Troubleshooting:
Advanced troubleshooting guides for common and complex issues.
Wiring Diagrams:
Includes original wiring diagrams.
Procedures Included
Disassembly Servicing:
Step-by-step procedures for disassembly and servicing of major components.
General Repair:
General repair procedures applicable to the tractors.
Separation Procedures:
Detailed instructions for separating major tractor assemblies.
Component Rebuild:
Instructions for rebuilding key components.
Technical Depth
Depth:
Professional-grade, comprehensive diagnostic, repair, and maintenance information.
User Level:
Suitable for professional technicians and experienced DIY users.
📊 Manual Specifications
File Format
Format:
PDF
Download Type:
Instant Download
Print Quality
Printability:
Full Printable
Zoom Functionality:
Zoom IN/OUT enabled
Binding Type
Binding Type:
Digital (PDF)
Paper Type
Paper Type:
Not Applicable (Digital)
Requirements
Software Requirements:
Adobe PDF Reader, WinZip
Operating System Compatibility:
All Versions of Windows & Mac
⚙️ Engine Specifications
Primary Engine
Engine Type:
Diesel (specifics depend on model/configuration, typically DT-466 or similar IH diesel engines)
Performance
Horsepower Range:
Refer to specific model variants within the manual (e.g., 986 typically in the 100-120 HP range, 1086 in the 120-140 HP range)
Torque Specifications:
Detailed torque specifications for engine components found within the manual.
Fuel System
Fuel Type:
Diesel
Injection System:
Information on diesel injection pump and injector service covered.
🔧 Transmission
Standard
Transmission Type:
Manual, synchronized transmission (e.g., IH 16-speed power shift or 10-speed constant mesh)
Optional
Optional Transmission:
Power Shift options available on some configurations (covered in manual).
Features
Gear Ratios:
Detailed gear ratios and transmission assembly information are included.
Transmission Fluid Specifications:
Recommended transmission fluid types and capacities detailed.
📐 Dimensions
Weights
Operating Weight:
Refer to manual for specific model weights (typically 9,000-12,000 lbs or more depending on configuration).
Drawbar Horsepower:
Technical specifications for drawbar horsepower are usually included in tractor manuals.
💡 Technology Features
Infotainment
Infotainment Features:
Tractors of this era typically have basic radio options; the manual covers the electrical systems relevant to these.
Driver Assistance
Driver Assistance Features:
Focus is on mechanical and electrical systems, not modern driver assistance features.
Connectivity
Connectivity Options:
No electronic connectivity features typically found on these models.
🔧 Maintenance
Service Intervals
Engine Oil Change:
Specific intervals (e.g., every 100-250 hours) for engine oil and filter changes are detailed in the manual.
Hydraulic Fluid Change:
Recommended intervals for hydraulic fluid and filter replacement provided.
Fluid Specifications
Engine Oil Type:
Manual specifies recommended diesel engine oil viscosity grades (e.g., SAE 15W-40) and API service classifications.
Hydraulic Fluid Type:
Specifications for hydraulic/transmission fluid (e.g., IH Hy-Trans or equivalent) will be listed.
Coolant Specifications:
Recommended coolant type and mixture ratios for the cooling system are included.
Known Issues
Common Wear Points:
The manual would detail common wear points and their troubleshooting, such as clutch wear, hydraulic pump issues, and transmission synchro wear.
Electrical Gremlins:
Troubleshooting common electrical issues like starter solenoid problems, lighting circuit faults, and gauge failures is covered.
Hydraulic System Performance:
Common hydraulic performance issues, such as slow or erratic lift, are addressed with diagnostic steps.
📚 Vehicle History
Brand Heritage
Brand History:
International Harvester (IH) was a major American manufacturer of agricultural and construction machinery, known for its robust and reliable equipment.
Model Evolution
Model Series:
The 986 and 1086 were part of IH's highly successful '86 series tractors, introduced in the mid-1970s, representing advancements in comfort and performance.
Production
Production Years:
The 86 series, including the 986 and 1086, were primarily produced from approximately 1976 to 1981.

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 model year and engine before you buy

Manufacturers change procedures, wiring and part numbers between model years and engine options. If your VIN plate shows a year or engine code that is not listed on the data plate above, contact us with the model, year and VIN and we will confirm coverage before you order.

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  • Coverage check Not sure it fits? Send the model and VIN before you buy.