International Harvester 1086 Tractor Factory Service Repair Manual

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Art.-Nr: 97219

Stichworte: 1086 Agriculture International Harvester Tractor Tractors

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Beschreibung

The International Harvester 1086 Tractor, produced approximately between 1976 and 1981, represents a robust and powerful machine within the heavy-duty agricultural segment. This model is recognized for its strong diesel engine performance, delivering substantial horsepower and torque essential for demanding farm operations. Key features include its versatile T-146 Powershift (Hydra-Shuttle) transmission, offering a wide range of gear selections, and a capable hydraulic system designed to power various implements. The 1086 was part of the esteemed '86 Series', known for its durable engineering and reliability, building upon the legacy of International Harvester's commitment to agricultural innovation. This comprehensive Factory Service Repair Manual provides detailed information for the service and repair of the International Harvester 1086 Tractor. It covers essential areas including engine overhaul, transmission systems, hydraulic and electrical systems, chassis, and operator station components. The manual includes step-by-step repair procedures, maintenance schedules, troubleshooting guides, and critical technical specifications such as torque values and clearances. Its purpose is to assist owners, mechanics, and technicians in maintaining the optimal performance, reliability, and longevity of the 1086 Tractor through accurate and detailed guidance.

🏷️ Basic Information

Identification

Make:

International Harvester

Model:

1086 Tractor

Model Code:

Product Type:

Factory Service Repair Manual

👋 Introduction

Market Position

Market Segment:

Heavy-duty agricultural tractor, representing a significant model in International Harvester's tractor lineup during its production era.

Key Features

Engine Power:

Known for robust diesel engine performance, delivering substantial horsepower and torque for demanding farm tasks.

Transmission Type:

Often equipped with a high-torque-capacity transmission, such as the Power Shift (Hydra-Shuttle), offering flexible gear selection.

Hydraulic Capacity:

Features a capable hydraulic system for operating various implements and attachments.

Operator Comfort:

Offered various cab options providing a degree of operator comfort for extended working periods.

Competitive Analysis

Competitors:

Competed with tractors from John Deere (e.g., 4040, 4240), Case IH (e.g., 970, 1070), Massey Ferguson, and others in the high-horsepower row-crop tractor segment of the late 1970s and early 1980s.

📋 Manual Details

Coverage Areas

Primary Coverage:

Service and Repair

Secondary Coverage:

Maintenance, Troubleshooting, Diagnostics

Page Count

Estimated Page Count:

N/A (Digital Format)

Manual Type

Manual Type:

Factory Service Repair Manual / Workshop Manual / Troubleshooting Manual / Maintenance Manual

Language

Language:

English

Format

Format:

📖 Manual Coverage

Systems Covered

Engine Systems:

Engine overhaul, fuel system, lubrication system, cooling system, intake and exhaust systems, engine timing, cylinder head, crankshaft, pistons, connecting rods, camshaft, valve train.

Transmission Systems:

Power Shift transmission (Hyrda-Shuttle), clutch, gearbox, final drives, differential, PTO (Power Take-Off).

Hydraulic Systems:

Hydraulic pump, control valves, cylinders, remote hydraulic outlets, hitch control system, steering hydraulics.

Electrical Systems:

Starter, alternator, battery, ignition system (if applicable), lighting, wiring harnesses, gauges, dashboard indicators, troubleshooting electrical faults.

Chassis And Suspension:

Front axle, rear axle, steering system (including power steering), braking system, wheels, tires.

Operator Station And Body:

Operator's cab (if equipped), controls, seating, sheet metal, fenders, platform.

Procedures Included

Maintenance Procedures:

Scheduled maintenance, fluid changes, filter replacement, lubrication points, pre-operation checks, post-operation checks.

Repair Procedures:

Step-by-step repair instructions for all major components and systems, including disassembly, inspection, repair, and reassembly.

Troubleshooting Guides:

Diagnostic charts, symptom-based troubleshooting, common problem identification and solutions.

Technical Specifications:

Detailed specifications for all components, including torque values, clearances, tolerances, fluid capacities, electrical specifications.

Wiring Diagrams:

Comprehensive electrical wiring diagrams for all systems, aiding in diagnosis and repair.

Engine Timing Adjustment:

Procedures for setting and adjusting engine timing.

Injector Testing And Replacement:

Detailed steps for testing and replacing fuel injectors.

Transmission Shift Lever Adjustment:

Procedures for adjusting the powershift control levers.

Hydraulic Pump Testing And Replacement:

Instructions for diagnosing and replacing the main hydraulic pump.

Brake System Overhaul:

Detailed instructions for servicing and overhauling the braking system.

Front Axle And Steering Repair:

Guidance on the repair and maintenance of the front axle and steering components.

Technical Depth

Depth:

Comprehensive factory-level detail covering routine maintenance to major overhauls and complex diagnostics.

Diagnostic Charts:

Inclusion of comprehensive diagnostic charts for various operational issues.

Torque Specifications:

Exact torque values provided for critical fasteners throughout the tractor.

Clearances And Tolerances:

Precise measurements for component clearances and operational tolerances.

Special Tool Recommendations:

Indication of any specialized tools required for specific repair procedures.

📊 Manual Specifications

File Format

File Format:

Searchability:

Searchable text within PDF

Compatibility:

Compatible with Adobe PDF Reader, usable on Windows and Mac operating systems.

Print Quality

Print Quality:

High-resolution scans suitable for printing

Binding Type

Binding Type:

N/A (Digital Download)

Paper Type

Paper Type:

N/A (Digital Download)

⚙️ Engine Specifications

Primary Engine

Engine Make:

International Harvester

Engine Model:

D-358 (Typically)

Engine Type:

Naturally Aspirated Diesel

Cylinders:

Displacement:

358 cubic inches (5.86 Liters)

Performance

Rated Horsepower:

Approximately 110-125 PTO horsepower (varies by specific configuration and year)

Peak Torque:

N/A (Specific data often varies, but designed for high low-end torque)

Fuel System

Fuel Type:

Diesel

Injection System:

Roosa Master or Simms inline injection pump (common types)

🔧 Transmission

Standard

Transmission Type:

T-146 Powershift (Hydra-Shuttle) with 16 forward and 8 reverse speeds.

Optional

Optional Transmission:

N/A (Powershift was a key feature of this model)

Features

Clutch Type:

Dual-clutch arrangement for Powershift engagement.

Pto Speeds:

Standard 540/1000 RPM PTO (Power Take-Off).

📐 Dimensions

Exterior

Wheelbase:

Approximately 94 inches (2388 mm)

Length:

Approximately 148 inches (3759 mm) without implements

Width:

Approximately 77 inches (1956 mm) at rear axle

Weights

Operating Weight:

Approximately 8,500 - 9,500 lbs (3856 - 4309 kg), depending on configuration.

💡 Technology Features

Infotainment

Infotainment System:

N/A (Focus is on core agricultural functionality, not entertainment systems).

Driver Assistance

Driver Assistance Features:

N/A (No electronic driver assistance systems in the modern sense).

Connectivity

Connectivity Features:

N/A (No digital connectivity features).

🔧 Maintenance

Service Intervals

Engine Oil Change:

Every 250 hours or annually, whichever comes first.

Fuel Filter Replacement:

Every 500 hours or annually.

Air Filter Service:

Check daily, service as needed based on operating conditions. Typically every 250 hours.

Fluid Specifications

Engine Oil Type:

API CD or CE rated diesel engine oil, SAE 15W-40 recommended for most conditions.

Hydraulic Transmission Fluid:

Hytran Plus or equivalent universal tractor transmission fluid (UTTO).

Coolant Type:

Ethylene glycol-based permanent antifreeze solution (50/50 mix with distilled water).

Known Issues

Common Issues:

Potential issues include wear in the Powershift transmission components, hydraulic pump wear, diesel injection pump calibration, and electrical system gremlins common in older machinery. Front seal leaks and PTO engagement issues can also arise.

Preventative Maintenance:

Regularly checking and maintaining fluid levels, inspecting for leaks, and adhering to the recommended service intervals are crucial for longevity.

📚 Vehicle History

Brand Heritage

Brand Heritage:

International Harvester (IH) was a major American manufacturer of agricultural and construction equipment, known for its durable and powerful machinery.

Model Evolution

Model Line:

Part of the IH '86 Series' tractors, which succeeded the popular '66 Series' and featured updated styling, improved operator stations, and enhanced powertrains.

Production

Production Years:

Approximately 1976 - 1981

Manufacturing Location:

USA (Primary)