International Harvester Tractor 986 Factory Service Repair M

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Tipo: Tractor

Proveedor:

SKU: 100084

Etiquetas: 986 Agriculture International Harvester Tractor Tractors

Variantes de producto

Descripción

The International Harvester 986 tractor, produced approximately between 1976 and 1981, represents a significant piece of agricultural machinery known for its robust engineering and operator comfort. As part of the IH 86 series, this tractor succeeded earlier models and brought modern features to the field. Powered by the D-358 Diesel engine, it offered substantial horsepower and torque suitable for a wide range of farming tasks. Its David Brown 12-speed transmission, featuring a Torque Amplifier, provided versatile gearing options for efficient operation. The 986 was designed for reliability and performance, making it a valuable asset for agricultural operations during its production era and beyond. This comprehensive service manual provides essential technical information for the International Harvester 986 tractor. It is designed to assist owners, mechanics, and technicians in performing maintenance, repairs, and troubleshooting. The manual covers critical systems including the engine, transmission, hydraulic system, electrical system, brakes, cooling, fuel, steering, drivetrain, and power take-off. Detailed procedures for routine maintenance, component disassembly and reassembly, diagnostic procedures, and engine overhauls are included. Additionally, this resource offers troubleshooting guides, wiring diagrams, and technical specifications, enabling users to maintain the tractor's optimal performance and longevity.

🏷️ Basic Information

Identification

Make:

International Harvester

Model:

Vehicle Type:

Tractor

👋 Introduction

Market Position

Positioning:

A comprehensive factory service manual for owners and mechanics of the International Harvester 986 tractor, designed to facilitate efficient and accurate repairs and maintenance.

Competitive Analysis

Value Proposition:

Provides essential technical data and procedures that would otherwise require expensive dealer service, enabling cost savings and self-sufficiency for owners.

Key Features

Feature 1:

All-encompassing coverage for repair and service.

Feature 2:

Structured layout with a table of contents for easy information retrieval.

Feature 3:

Focus on troubleshooting and addressing common issues.

Feature 4:

Digital format for convenient access and use on various devices.

📋 Manual Details

Coverage Areas

Coverage Description:

Comprehensive service, repair, troubleshooting, and maintenance for the International Harvester Tractor 986.

Page Count

Estimated Pages:

Not specified, but described as comprehensive.

Manual Type

Type:

Factory Service Repair Manual / Workshop Manual / Troubleshooting Manual

Language

Language:

English

Format

Format:

📖 Manual Coverage

Systems Covered

Engine:

Yes, detailed service and repair for the engine.

Transmission:

Yes, service and repair of transmission systems.

Hydraulic System:

Likely covered given tractor application.

Electrical System:

Yes, including wiring diagrams.

Braking System:

Yes, service and repair.

Cooling System:

Yes, maintenance and repair.

Fuel System:

Yes, service and troubleshooting.

Steering System:

Yes, service and repair.

Operator Station:

Likely covered, including controls and comfort features.

Drivetrain:

Yes, including differential and final drives.

Power Take-Off Pto:

Likely covered for PTO operation and maintenance.

Procedures Included

Routine Maintenance:

Yes, including schedules and fluid specifications.

Troubleshooting:

Yes, dedicated troubleshooting guides.

Component Disassembly Reassembly:

Yes, detailed step-by-step instructions.

Diagnostic Procedures:

Yes, for identifying and resolving issues.

Wiring Diagrams:

Yes, for electrical system diagnosis and repair.

Engine Overhaul:

Yes, detailed procedures for engine rebuilds.

Transmission Repair:

Yes, covering component replacement and adjustment within the transmission and torque amplifier.

Hydraulic System Service:

Yes, likely includes testing, component replacement (pumps, valves, cylinders), and fluid maintenance.

Electrical Diagnostics:

Yes, with wiring diagrams and fault finding charts.

Front Axle And Steering Service:

Yes, for repair and maintenance.

Rear Axle And Differential Service:

Yes, including disassembly and reassembly.

Power Take-Off Pto Service:

Yes, likely covers PTO clutch and drive mechanisms.

Front End Loader Installation And Service:

Potential coverage, as loaders were common attachments. Check manual details.

Technical Depth

Depth:

Comprehensive, covering from routine maintenance to in-depth repairs and overhauls.

Accuracy:

Factory-level specifications, tolerances, and procedures, crucial for correct repair.

Diagrams:

Likely includes detailed exploded views, schematic diagrams, and troubleshooting flowcharts.

Special Tools:

Likely lists any special tools required for specific repair procedures.

📊 Manual Specifications

File Format

File Type:

Compatibility:

Compatible with Windows and Mac operating systems.

Software Requirements:

Adobe PDF Reader and WinZip (for potential archive compression).

Print Quality

Quality:

Digital format, quality dependent on original source scanning/creation.

Binding Type

Binding:

N/A (Digital PDF)

Paper Type

Paper:

N/A (Digital PDF)

⚙️ Engine Specifications

Primary Engine

Engine Model:

D-358 Diesel

Engine Type:

Direct Injection, Naturally Aspirated, 4-Cycle Diesel

Displacement:

358 cubic inches (5.87 Liters)

Bore X Stroke:

4.25 in. x 4.31 in. (108 mm x 110 mm)

Compression Ratio:

16.0:1 (Typical)

Horsepower Rated:

Approx. 96 PTO HP (Subject to specific configuration and model year)

Torque Peak:

Approx. 265 lb-ft @ 1300 RPM (Subject to specific configuration and model year)

Fuel System

Fuel Type:

Diesel Fuel

Injection System:

Roos or Bosch inline injection pump (model dependent)

Fuel Filter Part Number:

Refer to manual for specific PN, e.g., WIX 33490 (example for similar engines).

🔧 Transmission

Standard

Transmission Type:

David Brown 12-Speed "Power Shift" (Synchromesh with Torque Amplifier)

Number Of Gears Standard:

12 Forward, 4 Reverse (with Torque Amplifier)

Features

Torque Amplifier:

Yes, provides 16 forward speeds and 4 reverse speeds via a 2-speed underdrive gear.

Fluid Type

Transmission Fluid:

IH Hy-Trans Fluid (or equivalent agricultural lubricant meeting API GL-4 specifications).

Fluid Capacity

Transmission Fluid Capacity:

Approx. 15 US quarts (14.2 Liters) (Check manual for exact capacity).

📐 Dimensions

Exterior

Length:

Approx. 140 inches (3556 mm)

Width:

Approx. 75 inches (1905 mm) at rear wheels (variable).

Height:

Approx. 102 inches (2591 mm) to top of exhaust stack.

Weights

Operating Weight:

Approx. 7,800 - 9,500 lbs (3538 - 4309 kg) depending on configuration and ballast.

💡 Technology Features

Infotainment

Infotainment System:

N/A (Typical for this era of heavy agricultural machinery, basic radio may have been an option).

Driver Assistance

Driver Assistance Features:

N/A (Primary focus on mechanical and hydraulic systems).

Connectivity

Connectivity Features:

🔧 Maintenance

Service Intervals

Engine Oil Change:

Typically every 250 hours of operation, or annually.

Fuel Filter Replacement:

Typically every 250-500 hours, or as needed.

Air Filter Cleaning Replacement:

Inspect frequently, clean/replace as needed, often based on operating conditions.

Fluid Specifications

Engine Oil Specification:

API CD or higher, SAE 30W (or 15W-40 for broader temperature range). Check manual for exact spec.

Engine Oil Capacity:

Approx. 12 US quarts (11.4 Liters) with filter change.

Coolant Type:

Ethylene Glycol based coolant with appropriate anti-corrosion additives. Typically a 50/50 mix with distilled water.

Known Issues

Common Issue 1:

Hydraulic pump and system leaks/performance degradation.

Common Issue 2:

Torque amplifier engagement issues or wear.

Common Issue 3:

Electrical system gremlins, particularly related to wiring harness integrity and switches.

Common Issue 4:

Wear on clutch components and PTO clutch packs.

Common Issue 5:

Engine component wear (e.g., cylinder liners, pistons) due to age and operating hours.

📚 Vehicle History

Brand Heritage

Brand:

International Harvester (IH) was a major American manufacturer of agricultural and construction equipment, as well as trucks and automobiles.

Model Evolution

Series Context:

The 986 was part of IH's popular 86 series tractors, known for their operator comfort and modern features for their time, succeeding models like the 686 and 574/674 series.

Production

Production Years:

Approximately 1976 - 1981

Manufacturing Location:

USA (Rockford, Illinois, and Louisville, Kentucky plants were common for IH tractors).