IH International Harvester 1086 Service Repair Manual

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The International Harvester 1086 is a robust and powerful mid-size row-crop tractor, produced from 1976 to 1979. As part of the esteemed '86 Series, it was engineered for versatility and...

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Tipo: Tractor

Proveedor:

SKU: 92623

Etiquetas: 1086 Agriculture Featured IH International Ih International Harvester International Harvester Tractor Tractors

Variantes de producto

Descripción

The International Harvester 1086 is a robust and powerful mid-size row-crop tractor, produced from 1976 to 1979. As part of the esteemed '86 Series, it was engineered for versatility and reliability in demanding agricultural operations. Featuring a liquid-cooled, direct injection diesel engine with a turbocharger, and a manual transmission equipped with the innovative Torque Amplifier for on-the-go gear splitting, the 1086 was designed to deliver exceptional performance. Its legacy is built on International Harvester's reputation for durable machinery, making it a sought-after model for its operational capabilities and enduring construction. This comprehensive Service Repair Manual provides essential information for the maintenance, repair, and overhaul of the International Harvester 1086 tractor. It covers a wide array of systems, including the engine, drivetrain, brakes, hydraulics, steering, fuel, cooling, and electrical systems, as well as the cab. Detailed step-by-step instructions, troubleshooting guides, diagnostic procedures, and technical specifications are included, making it an invaluable resource for tractor owners and mechanics alike. The manual's extensive content ensures that users can effectively maintain the tractor's performance and longevity.

🏷️ Basic Information

Identification

Make:

International Harvester

Model:

Product Type:

Service Repair Manual

👋 Introduction

Market Position

Target Audience:

Do-it-yourself tractor owners and experienced mechanics.

Key Features

Key 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.

Cost Effectiveness:

Provides significant cost savings compared to traditional paper manuals and professional mechanic fees.

Competitive Analysis

Market Segment:

Mid-size row-crop tractor, competing with models from John Deere, Case IH, Massey Ferguson, and Ford during its production era.

📋 Manual Details

Coverage

Coverage Areas:

Brakes, Cab, Clutch, Engine, Cooling System, Diesel Fuel System, Diesel Turbocharger, Differential, Electrical System, Engine, 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:

Usage

Intended Use:

Repair, maintenance, troubleshooting, and complete overhaul of the IH International Harvester 1086 tractor.

Convenience

Convenience Factors:

Digital format offers quick searching, ability to print only necessary pages, and accessibility on multiple devices.

📖 Manual Coverage

Systems

Systems Covered:

Engine, drivetrain (including transmission, differential, final drive, Torque Amplifier), braking system, hydraulic system, steering system, fuel system (diesel), cooling system, electrical system, PTO, and cab.

Procedures

Procedures Included:

Step-by-step repair and service instructions, troubleshooting guides, complete disassembly procedures, component replacement, adjustments, diagnostics, and routine maintenance.

Diagnostic Procedures:

Troubleshooting charts, fault diagnosis for engine, transmission, hydraulics, and electrical systems.

Rebuild Procedures:

Detailed instructions for rebuilding major components such as the engine, transmission, and hydraulic system.

Depth

Technical Depth:

Comprehensive, covering from basic maintenance to complete disassembly and reassembly of major components. Includes detailed photos and illustrations.

Components

Engine Components Covered:

Cylinder head, pistons, crankshaft, camshaft, lubrication system, cooling system, fuel injection system, turbocharger, engine block.

Transmission Components Covered:

Torque Amplifier (TA), range transmission, speed transmission, input/output shafts, gears, bearings, clutch packs.

Hydraulic Components Covered:

Hydraulic pump, control valves (including multiple control valve), cylinders, hoses, filters, power steering system.

Electrical Components Covered:

Wiring diagrams, starter, alternator, battery, lighting system, instrumentation, safety switches.

Specifications

Technical Data Included:

Torque specifications for fasteners, clearance measurements, pressures (hydraulic, fuel), timing settings.

Systems Covered

Braking System Coverage:

Detailed procedures for brake adjustments, caliper/wheel cylinder service, brake disc/drum replacement, and hydraulic brake system diagnostics.

Steering System Coverage:

Hydraulic power steering system diagnosis and repair, including steering pump, cylinders, and control valves.

Procedures Included

Engine Overhaul Procedures:

Complete instructions for engine disassembly, inspection, honing, ring and bearing replacement, valve jobs, and reassembly.

Technical Depth

Troubleshooting Methodology:

Employs a systematic approach to identify problems, often with diagnostic flowcharts and symptom-based solutions.

📊 Manual Specifications

File Details

File Format:

Adobe PDF

Print Quality:

Printable pages

Searchability:

Likely searchable text (standard for PDF manuals)

Download Speed:

Speed Download

Compatibility

Compatibility:

All versions of Windows and Mac; accessible via web browser on any computer or mobile device.

Requirements

Software Requirements:

Adobe PDF Reader and Winzip (free)

⚙️ Engine Specifications

Primary Engine

Engine Type:

Diesel

Engine Manufacturer:

International Harvester

Engine Model:

D-239 (likely, common for 1086, though specific variants may exist)

Bore Stroke:

Typically 4.00 x 4.75 inches (for D-239)

Horsepower Rated:

Approx. 102 PTO HP (1086 model rating)

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), MFD/4WD (likely optional or later addition, but manual implies coverage of 'Front System')

Features

Transmission Type:

Manual Transmission with Torque Amplifier (TA)

Torque Amplifier:

Provides on-the-go gear splitting for enhanced operational flexibility and power delivery.

Gear Ratios:

Specific gear ratios for each speed and Torque Amplifier gear range are detailed within the manual.

Specifications

Transmission Fluid Capacity:

Approx. 18 quarts (for transmission/hydraulic reservoir)

📐 Dimensions

Weights

Base Weight:

Approx. 8,400 - 9,000 lbs (varies by configuration)

Rear Tire Size:

Commonly 18.4-38 or 20.8-38

Front Tire Size:

Commonly 10.00-16 or 11.00-16

Exterior

Wheelbase:

Approx. 90.5 inches

Overall Length:

Approx. 145 inches (without front weights/hitches)

🛡️ Safety Features

Features

Braking System:

Hydraulically activated, self-adjusting disc brakes (wet or dry depending on specific configuration).

💡 Technology Features

Features

Cab Options:

Available with the "Sound-Gard" cab, a significant advancement in operator comfort and protection for its era.

Operator Interface:

Designed with operator comfort and ease of use in mind for its time, featuring intuitive controls.

Power Take Off:

Standard 540/1000 RPM PTO, selectable via shaft configuration.

Hitch System:

Category II three-point hitch with draft control and position control.

🔧 Maintenance

Service Intervals

Engine Oil Change Interval:

Typically 250 operating hours (refer to manual for exact IH recommendations)

Transmission Fluid Change Interval:

Typically every 1200 operating hours (refer to manual for exact IH recommendations)

Air Filter Replacement:

Based on operating conditions, check restriction indicator or manufacturer schedule.

Fluid Specifications

Engine Oil Type:

API CD or CE rated diesel engine oil, SAE 30 or 15W-40 (check manual for ambient temperature specifics)

Hydraulic Fluid Type:

IH Hy-Trans or equivalent universal tractor transmission oil (UTTO)

Coolant Type:

Ethylene glycol based antifreeze with corrosion inhibitors, 50/50 mix with distilled water.

Transmission Fluid Viscosity:

Consult manual for specific viscosity grades (e.g., 85W-140 for certain gearboxes if not using UTTO).

Known Issues

Common Wear Items:

Torque Amplifier clutches, hydraulic pump seals, PTO clutch, and engine injector seals.

Common Repair Focus Areas:

Torque Amplifier engagement issues, hydraulic system leaks, and front axle wear.

Common Engine Maintenance:

Regular checks and replacement of fuel filters, air filters, and coolant are critical for engine longevity.

📚 Vehicle History

Brand Heritage

Brand Origin:

International Harvester (IH), a major American manufacturer of agricultural and industrial machinery.

Legacy:

IH tractors are known for their robust construction and powerful performance, making them enduringly popular in the agricultural sector.

Model Evolution

Series:

Part of the highly successful '86 Series' of tractors, succeeding earlier models like the 756 and 826.

Design Philosophy:

Built to be a powerful, versatile, and reliable tractor for medium to large-scale farming operations.

Production

Production Years:

1976 - 1979