International Harvester 786 Tractor Factory Service Repair Manual

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Art.-Nr: 97212

Stichworte: 786 Agriculture International Harvester Tractor Tractors

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Beschreibung

The International Harvester 786 Tractor, produced between 1977 and 1981, represents a robust and reliable piece of agricultural machinery from a renowned American manufacturer. As part of IH's distinguished 06/56/86 series, this tractor is known for its durability and capability, making it a valuable asset for farmers and agricultural professionals. Designed for demanding work, it typically features a powerful 4-cylinder diesel engine, manual transmission with multiple gear ranges, and a standard PTO, all contributing to its effectiveness in various farm operations. Its engineering quality and inherent reliability have made it a lasting presence in the agricultural sector. This comprehensive Factory Service Repair Manual provides essential information for the maintenance, troubleshooting, and repair of your International Harvester 786 Tractor. It covers a wide array of systems, including detailed procedures for the engine, transmission, drivetrain, hydraulic system, electrical system, brakes, steering, and suspension. The manual includes routine maintenance schedules, diagnostic guides for common and complex issues, step-by-step repair and rebuild instructions, and critical technical specifications. Its clear organization and detailed content empower owners, mechanics, and technicians to effectively maintain the tractor, ensuring its longevity and optimal performance.

🏷️ Basic Information

Identification

Make:

International Harvester

Model:

786 Tractor

Product Type:

Factory Service Repair Manual

👋 Introduction

Market Position

Application:

Designed for agricultural professionals, farmers, and mechanics who maintain and repair International Harvester 786 Tractors.

Key Features

Organization:

Clearly organized with a table of contents for easy information retrieval.

Usability:

User-friendly layout, minimizing stress in locating repair information.

Value Proposition

Cost Savings:

Enables users to perform repairs themselves, saving significant costs on professional mechanic fees.

Knowledge Acquisition:

Provides in-depth understanding of vehicle systems, crucial for effective maintenance and emergency repairs.

Convenience:

Fast digital download allows for immediate access to repair information anytime, anywhere.

📋 Manual Details

Coverage Areas

Coverage:

Comprehensive service and repair information for the International Harvester 786 Tractor.

Page Count

Page Count:

Not specified in product information, but implied to be comprehensive.

Manual Type

Manual Type:

Factory Service Repair Manual, Workshop Manual, Troubleshooting Manual, Maintenance Manual

Language

Language:

English

Format

Format:

📖 Manual Coverage

Systems Covered

Engine:

Engine overhaul, diagnostics, fuel system, cooling system, lubrication system, ignition system (if applicable), exhaust system.

Transmission:

Gearbox overhaul, clutch service, power take-off (PTO) operation and repair, hydraulic transmission components (if applicable).

Drivetrain:

Front axle, rear axle, differential, drive shafts, final drives.

Hydraulic System:

Hydraulic pump service, valve control, cylinder repair, implement hitch operation, hydraulic fluid specifications.

Brakes:

Brake system diagnostics, adjustment, component replacement (master cylinder, brake lines, pads/shoes).

Electrical System

Electrical System:

Wiring diagrams, starter motor, alternator, battery service, lighting system, instrument panel diagnostics.

Steering

Steering:

Power steering system, steering column, linkage repair.

Suspension

Suspension:

Front axle components, wheel bearings, chassis lubrication.

Cooling System

Cooling System:

Radiator, water pump, thermostat, fan, coolant specifications.

Fuel System

Fuel System:

Fuel tank, fuel lines, fuel filter, injection pump service (diesel).

Exhaust System

Exhaust System:

Muffler, exhaust pipe, manifold service.

Body And Frame

Body And Frame:

Sheet metal repair, fender mounting, operator station components, chassis alignment.

Procedures Included

Maintenance:

Routine checks, lubrication schedules, filter replacement, fluid changes.

Troubleshooting:

Diagnostic procedures for common and uncommon issues, symptom-based troubleshooting guides.

Repair:

Step-by-step instructions for component disassembly, repair, and reassembly.

Rebuilds:

Complete engine, transmission, and hydraulic system rebuild procedures.

Adjustments:

Valve adjustments, clutch adjustments, brake adjustments, PTO engagement adjustments.

Installation:

Installation procedures for common replacement parts and accessories (e.g., front-end loader mounting).

Technical Depth

Depth:

Comprehensive, covering everything from basic maintenance to complete engine and transmission overhauls.

Diagnostics:

Advanced diagnostic procedures, including interpretation of symptoms and use of specialized tools.

Specifications:

Detailed technical specifications, torque values, clearances, and tolerances for all major components.

📊 Manual Specifications

File Format

File Format:

Software Requirements:

Adobe PDF Reader

Compression Utility:

WinZip (for potential archive unpacking)

Compatibility

Operating Systems:

All versions of Windows & Mac

Print Quality

Print Quality:

High quality for clear text and diagrams (implied for factory manual).

Binding Type

Binding Type:

Digital (PDF format), not applicable for physical binding.

Paper Type

Paper Type:

Not applicable for digital format. Original factory manuals were printed on durable paper.

⚙️ Engine Specifications

Primary Engine

Engine Model:

Typically equipped with a 4-cylinder International Harvester DT-466 or similar diesel engine (specific variant may depend on exact model build).

Engine Model

Engine Type:

Diesel

Performance

Horsepower Net Rated:

Approximately 80-90 HP (Varies by specific configuration and year of manufacture. Manual will provide precise figures).

Torque:

Significant torque output suitable for heavy agricultural work (Specific figures would be detailed in the manual).

Fuel System

Fuel Type:

Diesel

Injection System:

Direct Injection (likely rotary or inline injection pump).

Cooling System

Cooling Medium:

Water-glycol mixture

Lubrication System

Oil Type:

API CD or CES 20074 rated diesel engine oil (Specific viscosity grade, e.g., SAE 15W-40, will be detailed in the manual).

Engine Overhaul

Key Procedures:

Piston and ring replacement, cylinder head gasket replacement, bearing services, valve train adjustments.

🔧 Transmission

Standard

Transmission Type:

Manual transmission with multiple gear ranges and likely a synchronized shuttle or clutch for forward/reverse.

Features

Gear Selection:

Multiple forward and reverse gears, often with a High/Low range selector.

Power Take Off Pto:

Standard 540/1000 RPM PTO, with service and operation details covered.

Fluid Specifications

Transmission Oil:

IH Hy-Trans fluid or equivalent (Specific API classifications and viscosity will be provided in the manual).

📐 Dimensions

Exterior

Overall Length:

Varies depending on configuration, but generally around 140-150 inches (355-381 cm) without implements.

Weights

Operating Weight:

Approximately 7,000-8,000 lbs (3,175-3,629 kg), excluding ballast and implements.

Tires

Rear Tire Size:

Commonly 18.4-34 or similar agricultural tire sizes.

Front Tire Size:

Commonly 7.50-16 or 9.5L-15 agricultural tire sizes.

🛡️ Safety Features

Ratings

Rollover Protection:

ROPS (Roll Over Protective Structure) availability or as an optional fitment; manual will detail inspection and maintenance of ROPS.

Active Features

Braking System:

Independent rear wheel brakes, often with an option for hydraulic trailer brakes.

💡 Technology Features

Infotainment

Radio:

Often equipped with a basic AM/FM radio, potentially with a cassette player. Manual covers electrical connections.

Driver Assistance

Instrument Panel:

Includes essential gauges for engine temperature, oil pressure, fuel level, and tachometer. Manual details their function and troubleshooting.

Connectivity

Lighting:

Standard forward and rear work lights, brake lights, and turn signals. Manual provides wiring diagrams for repair.

🔧 Maintenance

Service Intervals

Engine Oil Change:

Typically every 250 hours of operation (Refer to manual for exact interval and specific oil change recommendations).

Fuel Filter Change:

Recommended at every oil change or as needed based on fuel quality.

Air Filter Service:

Service or replacement based on operating conditions, often indicated by a vacuum gauge or visual inspection.

Fluid Specifications

Hydraulic Transmission Fluid:

IH Hy-Trans or equivalent specified fluid. Capacity typically around 9-10 gallons (34-38 liters).

Engine Coolant:

50/50 mix of permanent antifreeze and clean water. Capacity varies by engine model, around 5 gallons (19 liters).

Known Issues

Hydraulic System:

Potential for hydraulic pump wear, leaking seals, or control valve issues over time. Manual covers troubleshooting and repair.

Transmission Wear:

Wear in synchronizers or gears in higher mileage units. Manual provides detailed rebuild procedures.

Electrical Corrosion:

Common issue in older equipment due to exposure; manual includes wiring diagrams for diagnosis.

📚 Vehicle History

Brand Heritage

Manufacturer:

International Harvester (IH), a significant American manufacturer of agricultural and construction equipment.

Model Evolution

Series:

Part of IH's well-regarded 06/56/86 series tractors, known for their robustness and reliability.

Production

Production Years:

Produced in the late 1970s and early 1980s (Specific years are 1977-1981).