IH International Harvester 1066 Service Repair Manual

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The 1066 tractor, produced from 1971 to 1976, represents a robust and highly capable machine designed for demanding agricultural applications. As a successor to the 966 series, it offered enhanced...

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Type: Tractor

Vendor:

Sku: 101127

Tags: 1066 Agriculture Farmall Series Featured IH International International Harvester Tractor Tractors

Product variants

Description

The 1066 tractor, produced from 1971 to 1976, represents a robust and highly capable machine designed for demanding agricultural applications. As a successor to the 966 series, it offered enhanced horsepower, typically around 110-120 PTO horsepower, and notable operator comfort features for its time. Known for its reliability and significant torque output, the 1066 is powered by DT-402 or similar diesel engines and features a versatile 10-speed synchronized transmission, often equipped with an optional Torque Amplifier for increased gear selection. Its engineering quality and widespread popularity underscore its importance in the agricultural sector. This comprehensive Service Repair Workshop Manual provides in-depth technical information for the 1066 tractor. It covers all major systems, including detailed procedures for engine, fuel, cooling, electrical, transmission, clutch, brakes, steering, hydraulic systems, and power take-off. The manual also includes specific sections on the differential, final drive, front system, belt pulley, governor, torque amplifier, direction reverser, carburetor, LP gas system, and power steering, along with wiring schematics and essential service data. Its purpose is to equip owners, mechanics, and independent service professionals with the necessary knowledge to perform accurate diagnostics, maintenance, and repairs, ensuring the continued optimal performance and longevity of the tractor.

🏷️ Basic Information

Identification

Make:

International Harvester

Model:

Vehicle Type:

Tractor

Product Type:

Service Repair Workshop Manual

👋 Introduction

Market Position

Purpose:

To provide comprehensive service and repair information for the IH International Harvester 1066 tractor.

Competitive Analysis

Uniqueness:

Vehicle-specific, not generic. Contains exact same information as dealer service departments.

Key Features

Content Quality:

Accurate, clear, concise text with diagrams, illustrations, and wiring schematics.

Value Proposition:

Enables owners to perform repairs, saving significant costs on maintenance and repairs.

📋 Manual Details

Coverage Areas

Engine:

Fuel System:

Cooling System:

Electrical System:

Transmission:

Clutch:

Brakes:

Steering System:

Hydraulic System:

Power Takeoff:

Differential:

Final Drive:

Front System:

Belt Pulley:

Governor:

Yes (Non-Diesel)

Torque Amplifier:

Direction Reverser:

Carburetor:

Lp Gas System:

Power Steering:

Wiring Schematics:

Service Data:

Page Count

Page Count:

Not specified in product info, typically extensive for a full service manual

Manual Type

Manual Type:

Service Repair Workshop Manual

Language

Language:

English

Format

File Format:

📖 Manual Coverage

Systems Covered

All Major Topics:

Yes, explicitly stated as covering all major topics.

Procedures Included

Repair Instructions:

Yes, step-by-step instruction provided.

Troubleshooting:

Yes, includes troubleshooting procedures.

Maintenance:

Yes, implies comprehensive maintenance procedures.

Technical Depth

Depth:

Full service and repair, including diagnostics. Equivalent to dealer-level information.

Audience:

Mechanics, owners with basic mechanical skills, independent service professionals.

📊 Manual Specifications

File Format

Digital Compatibility:

PC, Mac, Phones, E-readers (e.g., Kindle)

Print Quality

Printable:

Yes, all pages are printable.

Binding Type

Binding Type:

Digital (PDF) - no physical binding

Paper Type

Paper Type:

N/A (Digital file)

Software Requirements

Reader Requirement:

Adobe PDF Reader

⚙️ Engine Specifications

Primary Engine

Engine Model Family:

International Harvester DT-402 (Diesel), D-360 (Diesel), D-358 (Diesel), and possibly gasoline variants for earlier models or specific configurations.

Performance

Horsepower Range:

Approximately 110-120 PTO horsepower (actual varies by specific engine and configuration).

Torque Range:

Significant torque output suitable for heavy agricultural work (specific values vary by engine).

Fuel System

Diesel Fuel System:

Mechanical injection system (e.g., CAV or Roosa-Master pumps common).

Lp Gas System:

Supported, with dedicated coverage in the manual.

🔧 Transmission

Standard

Transmission Type:

10-speed synchronized transmission with a 2-speed PTO and optional Torque Amplifier (TA) for a total of 20 forward speeds and 4 reverse speeds (with TA engaged).

Optional

Torque Amplifier:

Yes, a key feature providing on-the-go shifting for increased gear selection.

Features

Gear Selection:

Offers a wide range of gears for various field conditions and speeds.

📐 Dimensions

Exterior

Wheelbase:

Approximately 94 inches (2388 mm).

Weights

Operating Weight:

Around 8,000 - 9,000 lbs (3629 - 4082 kg) depending on configuration.

🛡️ Safety Features

Ratings

Safety Features:

While not rated by modern automotive standards, the manual covers critical safety systems like brakes and steering.

Active Features

Brake System Type:

Hydraulically actuated, inboard wet disk brakes.

💡 Technology Features

Infotainment

Infotainment System:

Not applicable. Focus on operational controls and diagnostics.

Driver Assistance

Driver Assistance Features:

Not applicable. Primarily mechanical and hydraulic systems.

🔧 Maintenance

Service Intervals

Engine Oil Change:

Refer to manual for specific intervals, typically based on operating hours (e.g., 250 hours).

Fluid Specifications

Engine Oil:

API CD or CE service category diesel engine oil, viscosity typically SAE 15W-40 or 30W depending on ambient temperature. Specific grade detailed in manual.

Hydraulic Fluid:

IH Hy-Tran fluid or equivalent meeting specified properties for tractors.

Transmission Fluid:

IH Hy-Tran fluid or equivalent.

Known Issues

Common Wear Points:

Clutch wear, Torque Amplifier engagement issues, hydraulic pump wear, and potential engine component wear common to older diesel engines.

📚 Vehicle History

Brand Heritage

Manufacturer:

International Harvester (IH), a historic American manufacturer of agricultural machinery.

Model Evolution

Production Period:

Produced from 1971 to 1976.

Production

Key Features Introduction:

Successor to the 966 series, offering increased horsepower and operator comfort features.

🏆 Awards & Recognition

Recognitions

Industry Recognition:

The 1066 was a highly regarded and popular tractor model in its era, known for its power and reliability in agricultural applications. Specific industry awards are not detailed in product information.