International Harvester 986 Tractor Factory Service Repair Manual

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Typ: Tractor

Anbieter:

Art.-Nr: 97216

Stichworte: 986 Agriculture International Harvester Tractor Tractors

Produktvarianten

Beschreibung

The International Harvester 986 Tractor, produced between 1977 and 1981, represents a robust and reliable heavy-duty agricultural machine. Built upon the legacy of International Harvester's commitment to quality agricultural equipment, the 986 is powered by a 466 cubic inch (7.6 liter) International Harvester DT-466 diesel engine, delivering approximately 110-120 PTO horsepower. It features a 16-speed Power Shift transmission, known for its electro-hydraulic control for on-the-go shifting, and a substantial operating weight designed for demanding tasks. This tractor embodies the functional engineering characteristic of its era, focusing on durability and performance for agricultural applications. This comprehensive Factory Service Repair Manual provides detailed information for the service, repair, and maintenance of the International Harvester 986 Tractor. It covers all major systems, including the engine, transmission, hydraulics, electrical system, fuel system, cooling system, brakes, steering, powertrain, chassis, and operator station. The manual includes step-by-step repair procedures, diagnostic guides, rebuild instructions, maintenance schedules, wiring diagrams, torque specifications, and system schematics. Its factory-level depth is intended for professional technicians and experienced owners, enabling efficient troubleshooting and ensuring the longevity and optimal performance of the tractor.

🏷️ Basic Information

Identification

Make:

International Harvester

Model:

986 Tractor

Product Name:

International Harvester 986 Tractor Factory Service Repair Manual

Codes

Product Type:

Factory Service Repair Manual

👋 Introduction

Market Position

Segment:

Heavy-duty agricultural tractor

Key Features

Convenience:

Easy downloading and immediate access for repairs

Cost Savings:

Enables significant cost savings on repairs by empowering self-service

Knowledge Acquisition:

Provides in-depth vehicle knowledge for emergencies and routine maintenance

Accessibility:

Repair anytime, anywhere, on any compatible device

Information Layout:

Well-organized with a table of contents for easy navigation

📋 Manual Details

Coverage Areas

Primary Coverage:

Service, repair, and maintenance of the International Harvester 986 Tractor

Specific Components:

Engine, transmission, hydraulics, electrical system, steering, brakes, PTO, hitch, front axle, final drives, operator station.

Page Count

Estimated Page Count:

Extensive (specific page count not provided in source, but implied by 'comprehensive' and detailed coverage)

Manual Type

Type:

Factory Service Repair Manual / Workshop Manual / Troubleshooting Guide

Purpose:

A comprehensive guide for diagnosing, repairing, and maintaining the International Harvester 986 Tractor.

Language

Language:

English

Format

Format:

📖 Manual Coverage

Systems Covered

Engine:

Detailed repair, diagnostics, and overhaul of the engine systems

Transmission:

Service and repair of the transmission, including clutch and gearbox

Hydraulics:

Comprehensive coverage of the hydraulic system, including pump, valves, and cylinders

Electrical:

Detailed wiring diagrams and electrical system diagnostics

Fuel System:

Service and troubleshooting of the fuel injection system

Cooling System:

Maintenance and repair of the cooling system components

Braking System:

Service and repair of the braking system, including hydraulic and mechanical aspects

Steering System:

Repair and adjustment of the steering mechanism, including power steering

Powertrain:

All aspects of powertrain maintenance and repair

Chassis:

Frame, axle, and suspension service

Operator Station:

Service and repair of the operator's cab and controls

Power Take Off:

Service and maintenance of the PTO system.

Hitch System:

Operation and repair of the tractor's three-point hitch system.

Procedures Included

Maintenance:

Scheduled maintenance procedures and intervals

Troubleshooting:

Comprehensive troubleshooting guides for common and uncommon issues

Repair:

Detailed step-by-step repair procedures for all major components

Rebuilds:

Full engine, transmission, and hydraulic system rebuild instructions

Diagnostics:

Advanced diagnostic techniques and fault finding

Adjustments:

Calibration and adjustment procedures for various systems

Installation:

Guidance on component installation and replacement

Wiring Diagrams:

Detailed electrical system wiring diagrams for troubleshooting and repair.

Torques Specs:

Critical torque specifications for fastener tightening.

Schematics:

Hydraulic and electrical schematics to understand system flow and operation.

Technical Depth

Depth:

Factory-level, comprehensive coverage suitable for professional technicians and experienced owners

Detail Level:

In-depth technical explanations, specifications, and diagrams

Diagnostic Tools:

Information on required special tools and diagnostic procedures.

📊 Manual Specifications

File Format

Digital Format:

PDF (Requires Adobe PDF Reader)

Compatibility:

Compatible with all Windows and Mac versions

Print Quality

Searchability:

Searchable text for quick information retrieval

Binding Type

Binding:

N/A (Digital download)

Paper Type

Paper Quality:

N/A (Digital download)

⚙️ Engine Specifications

Primary Engine

Engine Model:

International Harvester DT-466 (6-cylinder diesel)

Displacement:

466 cubic inches (7.6 liters)

Fuel Type:

Diesel

Engine Block Type:

Cast iron, wet sleeve cylinder liners

Performance

Horsepower Rated:

Approximately 110-120 PTO horsepower (varies slightly by specific configuration)

Torque Peak:

High torque output, typical for its class

Fuel System

Injection Type:

Direct injection, typically rotary or inline pump injection system

Fuel Pump Type:

Typically a Bosch inline or rotary injection pump

🔧 Transmission

Standard

Transmission Type:

International Harvester 16-speed Power Shift (or optional manual transmission)

Gear Ranges:

16 forward, 8 reverse (with powershift)

Features

Powershift Operation:

Electro-hydraulic control for on-the-go shifting

📐 Dimensions

Exterior

Wheelbase:

Approx. 102 inches (2590 mm)

Weights

Operating Weight:

Approx. 9,500 - 11,000 lbs (4300 - 5000 kg) depending on configuration

💡 Technology Features

Infotainment

Operator Interface:

Focus on functional controls and instrumentation, not modern infotainment systems.

Driver Assistance

Assistance Features:

Basic operator aids such as PTO engagement, draft control, and potentially external hydraulic remotes. No electronic driver assistance in the modern sense.

Connectivity

Connectivity Features:

None.

🔧 Maintenance

Service Intervals

Engine Oil Change:

Typically every 250 hours or annually

Air Filter Replacement:

Based on operating conditions, check frequently

Fuel Filter Replacement:

Recommended at regular intervals, e.g., annually or every 250 hours

Fluid Specifications

Engine Oil:

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

Hydraulic Fluid:

IH Hy-Trans fluid or equivalent (refer to manual for specific type and viscosity)

Transmission Fluid:

Refer to manual, often same as hydraulic fluid in powershift transmissions

Coolant:

Permanent type antifreeze/coolant, 50/50 mix with water

Known Issues

Common Problems:

Potential for wear in powershift transmission components, hydraulic pump issues, and fuel system wear over time. Engine cylinder liners can be prone to cavitation if coolant maintenance is neglected.

📚 Vehicle History

Brand Heritage

Manufacturer Legacy:

International Harvester (IH) was a major American manufacturer of agricultural machinery and vehicles, known for its robust and reliable equipment.

Model Evolution

Series Placement:

The 986 was part of the successful '86 series', introduced in the late 1970s, which replaced the popular '74' and '76' series.

Production

Production Years:

1977-1981 (approximate)