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International Harvester

International Harvester 674 Tractor Full Service Repair Manual

International Harvester 674 Tractor Full Service Repair Manual

$16.99
$16.99
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Machine data plateRef 63944
Brand
International Harvester
Equipment
Tractors
Models covered
674
Format
PDF, searchable, print-ready
Delivery
Instant download after checkout
Language
English

What happens after you pay

  • Download link opens on the order page immediately
  • The same link is emailed to you — re-download any time
  • Open on phone, tablet or PC; print only the pages you need
  • Not sure it covers your serial range? Ask us before you buy
🏷️ Basic Information
Identification
Make:
International Harvester
Model:
674 Tractor
Model Variant:
Standard and row-crop versions
Production Years:
Approximately 1970-1980
👋 Introduction
Market Position
Target User:
Owners, mechanics, and technicians working on International Harvester 674 Tractors.
Competitive Analysis
Advantage:
Reliable and powerful utility tractor with easy-to-service systems, backed by extensive factory manual coverage.
Key Features
Information Layout:
Features a table of contents for easy information retrieval.
Benefit Cost Saving:
Enables significant savings on repair costs by empowering users to perform maintenance and repairs themselves.
Benefit Convenience:
Provides convenient access to repair information anytime, anywhere, directly on digital devices.
Benefit Knowledge Acquisition:
Offers in-depth knowledge of vehicle systems, crucial for emergency situations and proper operation.
📋 Manual Details
Coverage Areas
Manual Scope:
Comprehensive service and repair information for the International Harvester 674 Tractor.
Page Count
Estimated Pages:
While not explicitly stated, factory service manuals for this era typically range from 500 to over 1000 pages.
Manual Type
Type:
Factory Service Repair Manual
Language
Language:
English
Format
File Format:
PDF
Delivery Method:
Instant digital download
📖 Manual Coverage
Systems Covered
Engine:
Complete coverage of engine repair, overhaul, diagnostics, and specifications.
Transmission:
Detailed information on transmission systems, including operation, troubleshooting, and repair.
Drivetrain:
Coverage of rear axle, differential, and drive components.
Hydraulics:
In-depth coverage of the hydraulic system, including pump, valves, cylinders, and fluid specifications.
Electrical System:
Includes wiring diagrams, component testing, and troubleshooting for the electrical system.
Braking System:
Repair and maintenance procedures for the braking system.
Steering System:
Service and repair information for the steering mechanism.
Cooling System:
Maintenance and repair of the radiator, fan, and thermostat.
Fuel System:
Troubleshooting and repair of the fuel injection or carburetion system and fuel tank.
User Interface:
Information on control levers, dashboard indicators, and operator controls.
Front Axle Steering:
Repair and maintenance of the front axle and steering components.
Three Point Hitch:
Service and adjustment of the three-point hitch and draft control system.
Procedures Included
Routine Maintenance:
Detailed schedules and procedures for oil changes, filter replacements, lubrication, and inspections.
Troubleshooting:
Systematic guides for diagnosing and resolving common and complex issues.
Major Repairs:
Step-by-step instructions for component overhauls and major repairs.
Component Disassembly Reassembly:
Detailed guides for taking apart and putting back together various tractor components.
Diagnostics:
Methods for identifying faults using visual inspection, measurements, and specialized tools.
Wiring Diagrams:
Includes detailed electrical wiring diagrams for the entire tractor.
Technical Depth
Depth Of Information:
Comprehensive, suitable for professional mechanics and experienced DIY users.
Engine Rebuild:
Complete procedures for engine overhaul, including piston, ring, bearing, and cylinder head service.
Hydraulic Component Overhaul:
Detailed instructions for rebuilding hydraulic pumps, cylinders, and control valves.
Parts Information
Part Numbers:
Includes part numbers for components and assemblies.
Exploded Views:
Diagrams to aid in parts identification and assembly.
📊 Manual Specifications
File Format
File Type:
PDF
Compatibility:
Compatible with all versions of Windows and Mac operating systems.
Requirements:
Requires Adobe PDF Reader and WinZip for decompression and viewing.
Searchability:
Searchable text for easy lookup of topics.
Print Quality
Print Readability:
Designed for clear printing and on-screen readability.
Binding Type
Binding:
Digital (Downloadable PDF)
Paper Type
Paper Type:
N/A (Digital Format)
⚙️ Engine Specifications
Primary Engine
Engine Type:
Likely a diesel engine, common for this class of tractor.
Engine Family:
International Harvester D-series (e.g., D-155, D-179, D-206, D-236, D-246, D-268, D-310 depending on specific 674 variant).
Cylinder Count:
Typically 3 or 4 cylinders for this model range.
Performance
Horsepower Range:
Approximately 50-70 HP (exact figures vary by specific engine option).
Torque Specifications:
Detailed torque specifications for critical engine components will be present in the manual.
Fuel System
Fuel Type:
Diesel
Injection System:
Likely a direct injection system with a rotary or inline injection pump (e.g., CAV, Bosch).
Cooling System
Cooling Method:
Liquid-cooled
Lubrication
Oil Type:
Specific diesel engine oil grades (e.g., API CD or equivalent) and capacities will be detailed.
🔧 Transmission
Standard Transmission
Transmission Type:
Manual gearbox with various speed configurations (e.g., 8-speed or 16-speed with creeper gears).
Gear Selection:
Likely a combination of main shift lever and range selector.
Optional Transmission
Optional Configurations:
Factory options may include different gear sets or creeper capability.
Features
Power Take-Off (PTO):
Independent PTO for driving implements.
Differential Lock:
Mechanical differential lock for increased traction.
📐 Dimensions
Exterior
Wheelbase:
N/A - exact figures not specified; typical for utility tractors of this era.
Length:
N/A - exact figures not specified.
Weights
Curb Weight:
N/A - not specified; consult manual for detailed specifications.
🛡️ Safety Features
Ratings / Crash Test Information
Crash Test Rating:
N/A - not applicable for agricultural tractors.
Active Features
Brakes:
Hydraulic disc or drum brakes.
Steering:
Manual or power steering (if equipped).
Passive Features
Rollover Protection:
ROPS (Roll-Over Protective Structure) may be equipped; not standard on all models.
💡 Technology Features
Infotainment
Audio System:
N/A - agricultural tractor, no audio system.
Driver Assistance
Electrical System:
Basic electrical system with lights and controls; no advanced driver aids.
🔧 Maintenance
Service Intervals
Oil Change:
Refer to manual for specified intervals (typically 100-200 hours).
Filter Replacement:
Air, fuel, and oil filters should be replaced per schedule.
Lubrication:
Grease fittings and pivot points require periodic lubrication.
Fluid Specifications
Engine Oil:
Specific diesel engine oil grades (e.g., API CD or equivalent) and capacities will be detailed.
Hydraulic Fluid:
Specify recommended type (e.g., IH Hy-Tran) and capacity in manual.
Coolant:
Appropriate coolant mixture for liquid-cooled engine.
Known Issues / Common Wear Items
Common Wear:
Injectors, hydraulic seals, electrical contacts, and brake components may need attention.
Common Issues:
Some models may experience transmission noise or hydraulic leaks; manual provides troubleshooting.
📚 Vehicle History
Brand Heritage
Manufacturer:
International Harvester (IHC)
Heritage:
Known for producing rugged agricultural equipment.
Model Evolution
Series:
Part of the International Harvester 600 series.
Production Location
Plant:
N/A - specific factory not specified in manual.
🏆 Awards & Recognition
Recognitions
Awards:
No specific awards documented for the IH 674.
Reputation:
Regarded as a reliable workhorse among tractor enthusiasts.

Delivery & file format

This is a digital PDF download, not a printed book. After payment the download link appears on your order confirmation page and is emailed to the address you entered. Files open in any PDF reader on phone, tablet or computer and can be printed.

Check the serial range before you buy

Manufacturers change procedures and part numbers by serial-number break. If your data plate shows a serial prefix that is not listed above, contact us with the model and serial number and we will confirm coverage before you order.

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