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IH International

IH International Harvester 1086 Service Repair Workshop Manual

IH International Harvester 1086 Service Repair Workshop Manual

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Machine data plate
Brand
IH International
Equipment
Tractors
Models covered
1086
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:
1086
Model Variant:
2WD row-crop
Production Years Covered:
1976-1979
👋 Introduction
Market Position
Target Audience:
Do-it-yourself tractor owners and experienced mechanics
Competitive Analysis
Advantage:
Official factory service manual with complete coverage for the IH 1086, offering detailed procedures and specifications.
Key Features
Features:
Complete official factory service manual, digital PDF format, hundreds of pages with photos and illustrations, step-by-step instructions, printable, no expiry dates, cost-effective alternative to paper manuals.
📋 Manual Details
Coverage
Coverage Areas:
Brakes, Cab, Clutch, Engine, Cooling System, Diesel Fuel System, Diesel Turbocharger, Differential, Electrical System, Final Drive, Front System, Hydraulic System, Multiple Control Valve, Power Steering System, Power Take-off, Service Data, Torque Amplifier, Transmission Brake, Transmission Range, Transmission Speed, and more.
Format
Page Count:
Hundreds of pages
Manual Type:
Factory Service Repair Manual / Workshop Manual
Language:
English
Format:
PDF
Delivery Method:
Instant Download
📖 Manual Coverage
Systems Covered
Engine:
Complete engine systems, including cylinder head, pistons, crankshaft, camshaft, lubrication, cooling, fuel injection, and turbocharger.
Drivetrain:
Transmission (including Torque Amplifier), differential, final drive, and driveline components.
Braking System:
Brake service and adjustments.
Hydraulic System:
Hydraulic pump, control valves, cylinders, hoses, filters, and power steering.
Steering System:
Hydraulic power steering system.
Fuel System:
Diesel fuel system, including injection pump and injectors.
Cooling System:
Radiator, water pump, thermostat, and cooling fan.
Electrical System:
Wiring diagrams, starter, alternator, battery, lighting, instrumentation, and safety switches.
Power Take-off:
PTO system and components.
Cab:
Cab interior and controls.
Procedures Included
Service Instructions:
Step-by-step repair procedures for all major systems.
Troubleshooting Guides:
Diagnostic charts and symptom-based solutions.
Disassembly Procedures:
Complete disassembly and reassembly instructions.
Component Replacement:
Procedures for replacing worn parts.
Adjustments:
Adjustment specifications for clutches, brakes, valves, etc.
Rebuild Procedures:
Detailed instructions for rebuilding engine, transmission, hydraulic pumps.
Routine Maintenance:
Scheduled maintenance checklists.
Technical Depth
Level:
Comprehensive: from basic maintenance to complete overhaul.
Diagnostic Procedures:
Includes troubleshooting charts and fault diagnosis for engine, transmission, hydraulics, and electrical systems.
Specifications:
Torque specs, clearance measurements, pressure settings, timing data.
Photos and Illustrations:
Hundreds of images to guide repairs.
Parts Information
Identification Numbers:
Part numbers for components are referenced within the manual.
📊 Manual Specifications
File Format
File Type:
PDF
Compatibility:
All versions of Windows and Mac; accessible via web browser on any computer or mobile device.
Requirements:
Adobe PDF Reader and Winzip (free)
Searchability:
Searchable text
Print Quality
Print Quality:
Printable pages
Binding
Binding Type:
Digital (no physical binding)
Paper Type
Paper Type:
N/A - digital delivery
⚙️ Engine Specifications
Primary Engine
Engine Type:
Diesel
Engine Manufacturer:
International Harvester
Engine Model:
D-239 (likely, common for 1086)
Bore Stroke:
Typically 4.00 x 4.75 inches for D-239
Horsepower Rated:
Approx. 102 PTO HP
Engine Cooling:
Liquid-cooled
Performance
Displacement:
Approximately 239 cubic inches (3.9 liters) based on D-239
Fuel System
Fuel System Type:
Direct Injection Diesel with Turbocharger
🔧 Transmission
Drive Type
Drive Configuration:
2WD (standard)
Standard Transmission
Type:
Manual with Torque Amplifier
Gears:
8 forward and 4 reverse (with TA providing on-the-go gear splitting)
Optional Transmission
Options:
N/A - not specified for this model
Features
Torque Amplifier:
Provides on-the-go gear splitting for power and speed changes.
📐 Dimensions
Exterior
Wheelbase:
Approximately 100 inches (2,540 mm)
Length:
Approximately 170 inches (4,318 mm)
Weights
Curb Weight:
Approximately 13,000 lbs (5,897 kg)
🛡️ Safety Features
Ratings / Crash Test
Ratings:
N/A - tractors do not have crash test ratings.
Active Features
Active Safety:
None
Passive Features
Cab:
Rollover protective structure (ROPS) if cab equipped; safety switches.
💡 Technology Features
Infotainment
Audio System:
Basic radio if equipped; none standard.
Driver Assistance
Assistance Systems:
N/A - not available on this vintage tractor.
🔧 Maintenance
Service Intervals
Engine Oil Change:
Every 100 hours
Oil Filter Change:
Every 200 hours
Fuel Filter Change:
Every 500 hours
Hydraulic Fluid Change:
Every 1,000 hours
Coolant Change:
Every 2 years
Fluid Specifications
Engine Oil:
SAE 15W-40 (API classification CD or higher)
Hydraulic Fluid:
Hy-Tran fluid
Coolant:
50/50 antifreeze-water mix
Transmission Fluid:
Hy-Tran fluid
Known Issues / Common Wear Items
Torque Amplifier:
Can fail if not maintained; require periodic checks.
Hydraulic Pumps:
May leak or lose pressure with age.
Electrical Wiring:
Can corrode due to exposure.
Steering Cylinders:
Seals may wear and leak.
📚 Vehicle History
Brand Heritage
Manufacturer:
International Harvester
Brand History:
International Harvester was a major American manufacturer of agricultural equipment, known for durable tractors.
Model Evolution
Series:
86 Series (1976-1979)
Predecessor:
756 (similar power class)
Successor:
1086 replaced by the 5088 in 1981.
Production Location
Plant:
Farmall Works, Rock Island, Illinois
🏆 Awards & Recognition
Recognitions
Model Recognition:
The 86 Series was well-received for its power and reliability.

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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