International Harvester 986 Tractor Workshop Service Repair Manual

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🏷️ Basic Information Identification Make: International Harvester Model: 986 Tractor Generation Production Years: 1977-1981 Codes Model Code: 986 👋 Introduction Market Position Target Audience: Do-it-yourself owners and experienced mechanics seeking...

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Taper: Tractor

Distributeur:

UGS: 19053

Mots clés: 986 Agriculture International Harvester Tractor Tractors

Variantes de produits

Description

🏷️ Basic Information

Identification

Make:

International Harvester

Model:

986 Tractor

Generation

Production Years:

1977-1981

Codes

Model Code:

👋 Introduction

Market Position

Target Audience:

Do-it-yourself owners and experienced mechanics seeking comprehensive repair and maintenance information.

Competitive Analysis

Value Proposition:

An inexpensive and authoritative source to maintain vehicle functionality and perform repairs.

Key Features

Manual Enhancements:

Detailed substeps, notes, cautions, warnings, numbered instructions, bold figure numbers for easy cross-referencing, and easy-to-use table of contents.

📋 Manual Details

Coverage Areas

Systems Covered:

Engine Mechanical, Engine Electrical, Emission Control, Fuel System, Suspension, Clutch, Manual Transaxle, Automatic Transaxle, Driveshaft and Axle, Steering, Brakes, Body Interior, Body Exterior, Body Electrical, Restraint Systems

Page Count

Estimated Page Count:

Variable, but comprehensive, typically 500+ pages for a full workshop manual.

Manual Type

Type:

Workshop Service Repair Manual (Factory Service Manual equivalent)

Language

Language:

English

Format

File Format:

File Format

Print Quality:

Fully printable, allowing for high-quality reproductions of pages.

Zoom Capabilities:

YES (Zoom IN/OUT functionality for detailed viewing of illustrations and text).

Binding Type

Binding Type:

Digital (PDF) - Not applicable for physical binding.

Paper Type

Paper Type:

Not applicable (Digital PDF format).

Delivery

Delivery Method:

Instant Download

Requirements

Software Requirements:

Adobe PDF Reader & WinZip

Compatibility

Operating Systems:

All Versions of Windows & Mac

📖 Manual Coverage

Systems Covered

Engine Mechanical:

Detailed coverage of internal engine components, cylinder head, block, pistons, crankshaft, camshaft, timing, valve train, lubrication system, cooling system.

Engine Electrical:

Wiring diagrams, starter, alternator, ignition system, battery, lighting, instrument cluster.

Fuel System:

Fuel injection/carburetion, fuel pump, filters, lines, testing and adjustment procedures.

Transmission Manual:

Disassembly, inspection, assembly, and adjustment of the manual transaxle.

Transmission Automatic:

Coverage of the automatic transaxle, including hydraulic system, torque converter, and control mechanisms.

Brake System:

Hydraulic brake system, master cylinder, wheel cylinders, brake lines, parking brake, troubleshooting.

Steering System:

Power steering system components, hydraulic pump, steering gear, linkages, testing and repair.

Suspension System:

Front axle, rear axle, shock absorbers, linkage, pivot points, adjustments.

Body Electrical:

Headlights, taillights, turn signals, interior lighting, wiring harnesses, fuses, relays.

Driveshaft And Axle:

Details on front and rear axle assemblies, differentials, drive shafts, universal joints, and hub components.

Body Interior Exterior:

Coverage of sheet metal, fenders, cab components (if equipped), operator controls, seating, and lighting.

Restraint:

Information related to safety restraints for the operator, such as seatbelts if equipped with ROPS.

Procedures Included

Maintenance:

Routine maintenance, lubrication, fluid changes, filter replacements, scheduled servicing.

Troubleshooting:

Diagnostic procedures for common problems, symptom-based troubleshooting guides.

Repair Disassembly:

Step-by-step instructions for disassembling, inspecting, repairing, and reassembling all major components.

Rebuilds:

Comprehensive rebuild procedures for engines, transmissions, and other major assemblies.

Adjustments:

Adjustment procedures for clutch, brakes, steering, engine timing, and other critical systems.

Emission Control System:

Information pertaining to emission control systems, if applicable to the specific market and model year, including any related testing or adjustment procedures.

Technical Depth

Diagnostic Capabilities:

Advanced diagnostics for electrical and mechanical systems, including wiring schematics and troubleshooting charts.

Rebuild Level:

Complete engine, transmission, and hydraulic system rebuilds.

Illustrations Diagrams:

Detailed illustrations, diagrams, and photographic representations of components and procedures.

⚙️ Engine Specifications

Primary Engine

Engine Type:

Diesel

Engine Model:

D-358

Engine Displacement:

358 cubic inches (5.86 Liters)

Engine Configuration:

Inline 6-cylinder

Performance

Rated Horsepower Pto:

Approximately 96 PTO HP (figures vary based on specific configurations and testing standards).

Rated Horsepower Drawbar:

Approximately 82 Drawbar HP (figures vary based on specific configurations and testing standards).

Fuel System

Fuel System Type:

Direct Injection (likely CAV or similar rotary injection pump).

🔧 Transmission

Standard

Transmission Type Standard:

Full-Time Syncromesh (FTS) or Power Shift (optional).

Optional

Transmission Type Optional:

Power Shift (often referred to as 'Hi-Lo' or 'Powershift' transmission).

Features

Gear Options Fts:

Typically 8 Forward and 4 Reverse gears in the standard Syncromesh transmission.

Gear Options Powershift:

Typically 16 Forward and 8 Reverse gears with the Power Shift transmission.

Clutch Type:

Dual-Stage Clutch (for transmission engagement and PTO engagement on Syncromesh models).

📐 Dimensions

Exterior

Overall Length:

Approximately 150-155 inches (3810-3937 mm).

Overall Width:

Approximately 72-76 inches (1829-1930 mm) depending on rear tire size.

Overall Height:

Approximately 96-100 inches (2438-2540 mm) to the top of the exhaust stack.

Weights

Operating Weight:

Approximately 7,500 - 8,500 lbs (3400 - 3855 kg), depending on configuration and options.

Wheelbase:

Approximately 92 inches (2337 mm).

🛡️ Safety Features

Ratings

Tractor Safety Standards:

While specific ratings like modern automotive crash tests don't apply, the manual will cover safety aspects related to operation, maintenance, and component integrity as per agricultural machinery standards of the era.

Active Features

Rollover Protection:

ROPS (Roll-Over Protective Structure) was typically an optional or dealer-installed feature and is critical for operator safety. The manual likely covers installation and maintenance of ROPS if equipped.

Passive Features

Operator Station:

Designed with operator visibility and control access in mind. The manual will detail safety measures for the operator's seat, controls, and surrounding area.

💡 Technology Features

Infotainment

Infotainment Systems:

Basic by modern standards. Typically includes a radio (AM/FM, possibly with CB) and dashboard indicators.

Driver Assistance

Driver Assistance Features:

Limited to essential controls and instrumentation for safe operation. No electronic driver-assistance systems as found in modern vehicles.

Connectivity

Connectivity Options:

🔧 Maintenance

Service Intervals

Engine Oil Change:

Typically every 100-250 operating hours, depending on operating conditions and oil type specified.

Fuel Filter Replacement:

Recommended at regular intervals, often coinciding with oil changes or as per a scheduled maintenance chart.

Hydraulic Fluid Change:

Typically every 500-1000 operating hours, or when fluid appears contaminated.

Fluid Specifications

Engine Oil Specification:

API CD or CE rated diesel engine oil, viscosity typically SAE 15W-40 or 10W-30 depending on ambient temperature.

Hydraulic Transmission Fluid:

IH Hy-Tran or equivalent UTF (Universal Tractor Transmission Fluid). Check manual for exact specifications.

Coolant Specification:

Ethylene Glycol based antifreeze with corrosion inhibitors, typically a 50/50 mix with distilled water.

Known Issues

Common Wear Points:

Clutch wear, hydraulic pump wear, front axle pivot wear, and electrical component reliability are common areas requiring attention in older tractors.

Engine Potential Problems:

Potential for injector pump issues, injector wear, and turbocharger (if equipped) maintenance. Overheating due to cooling system maintenance neglect.

📚 Vehicle History

Brand Heritage

Brand Legacy:

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

Model Evolution

Series Placement:

The 986 was part of IH's highly successful '86' series, succeeding models like the 806 and 1026, and offering enhanced features and power.

Production

Manufacturing Plant:

Primarily manufactured at IH's Farmall Works in Rock Island, Illinois, USA.

🏆 Awards & Recognition

Recognitions

Model Recognition:

The 86 series tractors, including the 986, were highly regarded for their power, comfort (for the era), and versatility, making them popular workhorses in agriculture.

Ratings

Reliability Perception:

Generally considered reliable and robust machines when properly maintained, characteristic of IH's reputation.