International Harvester Tractor 674 Workshop Service Repair Manual

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Taper: Tractor

Distributeur:

UGS: 99571

Mots clés: 674 Agriculture Featured International Harvester Tractor Tractors

Variantes de produits

Description

This workshop service repair manual covers the International Harvester 674 tractor, a robust and reliable machine produced primarily in the 1970s and early 1980s. Known for its durable construction and straightforward engineering, the 674 is a testament to International Harvester's legacy in agricultural equipment. This model typically features diesel engines, manual transmissions, and is designed for a variety of farm and utility tasks, offering dependable performance and a significant horsepower range suitable for demanding work. Its design prioritizes functionality and longevity, making it a valuable asset for its intended applications. This comprehensive manual provides essential information for the maintenance, repair, and troubleshooting of your International Harvester 674. It details procedures for all major systems, including the engine mechanical and electrical systems, fuel, clutch, manual transaxle, driveshaft, steering, and brake systems. Additionally, it covers bodywork, electrical systems, and restraint features. The manual includes step-by-step instructions, diagnostic flowcharts, detailed illustrations, wiring schematics, and technical specifications, empowering owners and technicians to perform everything from routine maintenance to major overhauls, ensuring the continued optimal performance and longevity of the tractor.

🏷️ Basic Information

Identification

Make:

International Harvester

Model:

Product Type:

Workshop Service Repair Manual

👋 Introduction

Market Position

Target Audience:

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

Key Features

Content Highlight:

Detailed illustrations, diagrams, wiring schematics, specifications, and step-by-step instructions.

Value Proposition

Cost Effectiveness:

Inexpensive way to keep the tractor working properly and avoid costly shop visits.

Usability

Navigation:

Numbered table of contents for fast information retrieval.

Instruction Clarity:

Numbered instructions, bold figure numbers, detailed substeps, and call-out notes/cautions/warnings.

📋 Manual Details

Coverage Areas

Primary Coverage:

Complete service and repair for International Harvester Tractor 674

Systems Covered:

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

Page Count

Estimated Page Count:

Varies by specific edition, but comprehensive manuals typically exceed 500 pages

Manual Type

Type:

Service Repair Manual / Workshop Manual

Language

Language:

English

Format

File Format:

📖 Manual Coverage

Systems Covered

Engine Mechanical System:

Detailed diagnostics, disassembly, inspection, repair, and reassembly procedures for engine components including cylinder heads, blocks, crankshafts, pistons, connecting rods, camshafts, and valve trains.

Engine Electrical System:

Includes troubleshooting, repair, and component testing for starting system, charging system, ignition system, and related wiring harnesses.

Emission Control System:

Information on emission control devices, their function, and troubleshooting procedures to meet regulatory standards.

Fuel System:

Diagnosis and repair of fuel injection or carburetion systems, fuel pumps, filters, lines, and associated components.

Suspension System:

Service and repair procedures for front and rear suspension components, including kingpins, bushings, linkages, and shock absorbers.

Clutch System:

Detailed instructions for clutch inspection, adjustment, replacement of clutch disc, pressure plate, and release bearing.

Manual Transaxle System:

Repair and overhaul procedures for the gearbox, including gear inspection, bearing replacement, and shift mechanism service.

Driveshaft And Axle:

Service information for driveshafts, universal joints, differentials, and axle shafts.

Steering System:

Procedures for diagnosing and repairing steering gears, linkages, power steering components (if applicable), and steering column.

Brake System:

Comprehensive coverage of brake system maintenance, repair, and bleeding, including brake shoes, drums, cylinders, and hydraulic lines.

Body Interior And Exterior:

Guidance on body panel repairs, door mechanisms, seat adjustments, and exterior trim.

Body Electrical System:

Wiring diagrams, troubleshooting for lighting systems, instrument clusters, and accessories.

Restraint System:

Information on safety restraints such as seat belts and ROPS (Roll Over Protection Structure) if applicable.

Procedures Included

Maintenance:

Scheduled maintenance, fluid changes, lubrication, filter replacements, and general upkeep procedures.

Troubleshooting:

Systematic diagnostic flowcharts and common problem identification for all major vehicle systems.

Repair:

Step-by-step repair instructions for component removal, rebuilding, and installation.

Diagnostics:

Detailed diagnostic procedures for identifying and rectifying faults across various systems.

Electrical Service:

Combined troubleshooting and wiring diagrams for efficient electrical system diagnosis and repair.

Rebuilds And Overhauls:

Detailed instructions for major component rebuilds, including engines, transmissions, and hydraulic systems.

Technical Depth

Depth:

Comprehensive, covering from basic maintenance to complete overhauls and advanced diagnostics.

Specifications Detail:

Provides essential technical data like torque specifications, clearances, fluid capacities, and timing settings.

Manual Completeness

Completeness Level:

Factory Service Manual level of detail, aiming to cover all repair and maintenance tasks.

📊 Manual Specifications

File Format

Format:

Print Quality

Printability:

Fully Printable

Viewing Features:

Zoom IN/OUT functionality

Binding Type

Binding:

Digital (PDF)

Paper Type

Paper Type:

N/A (Digital Format)

Delivery

Delivery Method:

Instant Download

Requirements

Software Requirements:

Adobe PDF Reader & WinZip

Compatibility

Operating Systems:

All Versions of Windows & Mac

⚙️ Engine Specifications

Primary Engine

Engine Type:

Diesel (Commonly D-155 and D-179 variants)

Engine Manufacturer:

International Harvester

Performance

Horsepower Range:

Approx. 55-65 PTO horsepower (varies by specific engine and configuration)

Torque Specs:

Refer to specific engine variant within the manual for exact torque values.

Fuel System

Fuel Type:

Diesel

Injection System:

Typically CAV or Simms inline fuel injection pumps, or rotary pumps depending on variant.

🔧 Transmission

Standard

Transmission Type:

Manual Synchromesh (often with 8 forward and 4 reverse gears or variants like 16/4)

Optional

Transmission Features:

Some models may have offered a torque amplifier (TA) option for enhanced gearing.

Features

Gear Selection:

Shuttle shift or constant mesh gearboxes with multiple speed ranges.

📐 Dimensions

Exterior

Wheelbase:

Approx. 83 inches (2108 mm)

Length:

Approx. 130 inches (3302 mm)

Weights

Operating Weight:

Approx. 6,000 - 7,000 lbs (2721 - 3175 kg)

🛡️ Safety Features

Passive Features

Rollover Protection:

ROPS (Roll Over Protection Structure) may be standard or an optional factory-fitted or aftermarket accessory, detailed in the manual.

Seatbelts:

Presence and serviceability of seat belts as per manual instructions.

💡 Technology Features

Infotainment

Instrument Cluster:

Basic analog gauges for speed, engine RPM, temperature, oil pressure, and fuel level.

Driver Assistance

Traction Control:

N/A (Tractors of this era do not typically feature electronic driver assistance systems like traction control).

Connectivity

Connectivity Features:

N/A (Focus on mechanical and basic electrical systems).

🔧 Maintenance

Service Intervals

Engine Oil Change:

Typically every 250 hours of operation or annually, refer to specific manual for exact intervals and oil type.

Air Filter Service:

Check and clean as needed, replace based on operating conditions and manual recommendations.

Fuel Filter Replacement:

Recommended replacement at specified intervals or when fuel system issues arise.

Fluid Specifications

Engine Oil:

API CD or CE classification, SAE 30 or 15W-40 depending on ambient temperature (verify with manual).

Hydraulic Fluid:

IH Hytran or equivalent UTF (Universal Tractor Transmission Oil) meeting API GL-4 and MS-1207 specifications.

Transmission Fluid:

Typically the same UTF fluid as used for hydraulics.

Known Issues

Common Wear Points:

Clutch wear, hydraulic pump output, front axle kingpins, and electrical wiring degradation over time.

Diesel Engine Specifics:

Glow plug system functionality, injector wear, and potential for air in the fuel system.

📚 Vehicle History

Brand Heritage

Manufacturer Legacy:

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

Model Evolution

Series Context:

The 674 is part of the IH '30' series or similar tractor lines from the 1970s and early 1980s, often seen as a successor to earlier models and a precursor to later Case IH designs.

Production

Production Period:

Typically produced in the 1970s and early 1980s.