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International Harvester

International Harvester 248 258 278 Hydro 268 Tractor Service Repair Workshop Manual

International Harvester 248 258 278 Hydro 268 Tractor Service Repair Workshop Manual

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Machine data plate
Brand
International Harvester
Equipment
Tractors
Models covered
Hydro Series
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 โ€” 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
๐Ÿท๏ธ Basic Information
Identification
Make:
International Harvester
Model:
248, 258, 278, Hydro 268
Model Variant:
Standard and hydrostatic transmission versions
Production Years Covered:
Late 1970s to early 1980s
๐Ÿ‘‹ Introduction
Market Position
Target Audience:
Owners, technicians, and mechanics performing maintenance, repair, and diagnostics on International Harvester 248, 258, 278, and Hydro 268 tractors.
Competitive Analysis
Advantage:
Comprehensive factory-level documentation for lifetime use, providing the same information used by professional mechanics.
Key Features
Licensing:
Unlimited usage across multiple devices, no expiry dates, no renewal fees.
Compatibility:
Fully compatible with all Windows and MAC computers.
๐Ÿ“‹ Manual Details
Coverage Areas
Coverage Scope:
All repairs, servicing, and troubleshooting procedures for International Harvester 248, 258, 278, and Hydro 268 tractors.
Page Count
Estimated Page Count:
Hundreds of pages
Manual Type
Type:
Factory Service & Repair Workshop Manual
Format
Language:
English
File Format:
PDF
Delivery Method:
Instant digital download
๐Ÿ“– Manual Coverage
Systems Covered
Engine:
Detailed engine overhaul, troubleshooting, and component repair (e.g., fuel system, cooling system, lubrication).
Transmission:
Repair and service of mechanical and hydrostatic transmissions, including gearboxes, clutch, and hydrostatic drive units.
Hydraulics:
Operation, maintenance, and repair of the hydraulic system, including pumps, valves, cylinders, and auxiliary equipment.
Electrical:
Complete electrical system diagnosis, wiring diagrams, component testing, and repair of starting, charging, and lighting systems.
Chassis:
Front axle, steering, brakes, and rear axle assembly maintenance and repair.
Operator Station:
Dashboard, controls, seating, and safety features.
Procedures Included
Maintenance:
Scheduled maintenance, lubrication, filter changes, and general upkeep procedures.
Troubleshooting:
Systematic diagnostic procedures and symptom-based troubleshooting guides for common and uncommon issues.
Repair:
Step-by-step instructions for component removal, disassembly, inspection, repair, and reassembly.
Overhaul:
Complete engine, transmission, and hydraulic system overhaul procedures.
Technical Adjustments:
Precise adjustments for fuel injection timing, valve clearance, clutch engagement, and hydraulic pressures.
Technical Depth
Depth:
Professional level, covering detailed component specifications, torque values, clearances, and diagnostic fault codes.
Diagrams:
Hundreds of detailed photos and exploded diagrams for clear visual guidance.
Parts Information
Identification Guides:
Exploded diagrams assist in part identification and ordering.
Specifications:
Includes part numbers and specifications for common service items.
๐Ÿ“Š Manual Specifications
File Format
File Type:
PDF
Compatibility:
Windows, Mac, Linux, iOS, Android
Requirements:
PDF reader software (e.g., Adobe Acrobat Reader)
Searchability:
Text searchable for quick lookup of topics.
Print Quality
Printability:
Printable (single pages or entire manual)
Binding
Binding Type:
Digital Download (N/A)
Paper
Paper Type:
N/A - digital product
โš™๏ธ Engine Specifications
Primary Engine
Engine Type:
Diesel (Specific engine models vary by tractor variant, typically 3 or 4-cylinder International Harvester/McCormick engines).
Performance
Horsepower Range:
Estimated 45-70 PTO horsepower (Varies by specific model and engine configuration).
Fuel System
Fuel Type:
Diesel Fuel
Injection System:
Typically rotary or inline injection pumps (e.g., CAV, Bosch) with associated troubleshooting and timing procedures.
๐Ÿ”ง Transmission
Standard Transmission
Transmission Type Standard:
Constant mesh, sliding gear transmission (3-point hitch models).
Optional Transmission
Transmission Type Optional:
Hydrostatic transmission (Hydro 268 and potentially other variants).
Features
Clutch:
Single or dual-stage dry clutch (depending on PTO and transmission).
Power Takeoff:
Live PTO and/or independent PTO (specifications detailed in manual).
๐Ÿ“ Dimensions
Weights
Operating Weight:
Approx. 4,000 - 5,500 lbs (Varies by model and configuration).
๐Ÿ›ก๏ธ Safety Features
Ratings
Safety Features Standard:
ROPS (Roll-Over Protective Structure) often an option, seat belts, operator presence levers, safety shielding on PTO and moving parts.
๐Ÿ’ก Technology Features
Infotainment
Features:
Basic operator controls, gauges for engine status (oil pressure, coolant temperature, fuel level), tachometer.
Driver Assistance
Power steering (often optional or power-assisted):
Optional power steering, differential lock.
๐Ÿ”ง Maintenance
Service Intervals
Engine Oil Change:
Typically every 100-250 operating hours or annually (refer to manual for specific interval).
Fuel Filter Change:
As needed or every 250-500 hours.
Hydraulic Fluid Change:
Typically every 500-1000 operating hours.
Fluid Specifications
Engine Oil Viscosity:
Typically SAE 30W or 15W-40 Diesel Engine Oil (refer to manual for exact API rating).
Hydraulic Fluid Type:
IH Hy-Tran Fluid or equivalent UTF (Universal Tractor Transmission Fluid) meeting IH specifications.
Coolant Type:
Ethylene Glycol based antifreeze (typically 50/50 mix with water).
Known Issues
Common Wear Items:
Clutch wear, hydraulic leaks, electrical component corrosion.
๐Ÿ“š Vehicle History
Brand Heritage
Manufacturer:
International Harvester (IH), a major American manufacturer of agricultural equipment.
Model Evolution
Series Context:
Part of the IH 68 Series (248, 258, 278, Hydro 268) produced in the late 1970s and early 1980s.
Production Location
Country:
United States (typical for IH tractors of this era).
๐Ÿ† Awards & Recognition
Recognitions
Model Legacy:
Respected for robust construction and reliability in agricultural settings, though no specific formal awards are documented for these models.

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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  • Instant download PDF link on your order page and by email right after payment.
  • Secure checkout Encrypted Shopify checkout โ€” we never see your card.
  • Print-ready PDF Searchable text, print the pages you need for the workshop.
  • Phone, tablet, PC Open it in the cab, the workshop or the office.