The International Harvester B-250 and B-275 tractors, produced in the late 1950s to early 1960s, represent robust and reliable light to medium-duty utility vehicles. These tractors, often powered by diesel engines with displacements around 2.5 to 2.7 liters and producing approximately 35 to 40 horsepower, were designed for a variety of agricultural tasks. Known for their sturdy construction and straightforward mechanical operation, they have earned a reputation for longevity and dependable performance in demanding environments. Their enduring appeal lies in their functional design and the essential role they played in farming operations of their era.
This comprehensive workshop service repair manual provides detailed information for the International Harvester B-250/B-275 tractor. It covers a wide array of systems, including the engine, cooling system, fuel system, powertrain, clutch, brakes, hydraulic system, and electrical system, among others. The manual offers step-by-step instructions for complete disassembly and reassembly, troubleshooting, diagnostics, and maintenance procedures. With hundreds of photos, illustrations, and detailed diagrams, it serves as an invaluable resource for both do-it-yourself owners and experienced mechanics seeking to maintain, repair, and understand their tractor.
Make:
International Harvester
Value Proposition:
Essential resource for maintenance, repair, and understanding the IH B-250/B-275 tractor, saving money and increasing longevity.
Completeness:
Official full factory service repair manual.
Practicality:
Enables users to perform repairs and maintenance themselves, avoiding costly dealership services.
Accessibility:
PDF format allows for digital access, easy printing, and portability.
Manual Type:
Workshop Service Repair Manual
Page Count:
Hundreds of pages
Printability:
Fully printable (entire manual or selected pages)
General Information:
True
Fenders Fuel Tank Platform:
True
Main Drive Bevel Gears Differential:
True
Power Steering System:
True
Hydraulic Pump And Cylinder Service:
True
Steering Box And Linkage Adjustment Repair:
True
Electrical Component Testing And Replacement:
True
Brake System Adjustment And Repair:
True
Step By Step Instructions:
True
Complete Disassembly Reassembly:
True
Troubleshooting Diagnostics:
True
Maintenance Procedures:
True
Timing Belt Or Chain Replacement:
True (Engine specific)
Injector Pump Timing And Overhaul:
True
Governor Adjustment:
True
Pto Clutch Adjustment And Repair:
True
Differential And Final Drive Gear Checks And Repairs:
True
Wheel Bearing Service:
True
Depth:
Comprehensive factory service and repair
Target Audience:
Do-it-yourselfer and experienced mechanic
Illustrations:
Hundreds of photos and illustrations
Diagrams:
Detailed wiring diagrams
Notes Cautions Warnings:
Included throughout each chapter
Instruction Format:
Numbered instructions, bold figure numbers
Compatibility:
All PC-based Windows operating systems and Mac
Storage:
Saves to hard drive, can be burned to CD-ROM
Print Quality:
High quality, printable without restriction
Delivery:
Instant download link on checkout page
Requirements:
Adobe PDF Reader
Engine Type:
Diesel (Typically British/Italian sourced engines)
Displacement:
B-250: Approx. 2.5 Liters; B-275: Approx. 2.7 Liters (Specific engine codes vary)
Horsepower Approx:
B-250: 35 HP; B-275: 40 HP (Drawbar HP will be lower)
Torque Approx:
Refer to specific engine variant in manual
Injection System:
Indirect Injection (Common for the era)
Transmission Type:
Manual Gearbox
Gear Selection:
Multiple forward and reverse gears
Gear Ratios:
Detailed in manual
Clutch Type:
Single or Dual Plate Clutch (depending on PTO requirements)
Operating Weight Approx:
1600-1800 kg (3500-4000 lbs)
Features:
N/A (Basic agricultural tractor with no modern infotainment features).
Features:
N/A (Basic mechanical controls).
Engine Oil Change:
Typically every 100-150 operating hours or annually (refer to manual for exact intervals and engine model).
Fuel Filter Change:
As per manual, typically with oil changes or as needed.
Air Filter Cleaning Replacement:
Regular checks and cleaning, replacement based on operating conditions.
Engine Oil Type:
API CD/CE or equivalent (e.g., SAE 30 or 15W-40 diesel engine oil - consult manual for specific viscosity and API rating).
Transmission Hydraulic Fluid:
IH Hy-Trans Fluid or equivalent UTF (Universal Tractor Transmission fluid) - consult manual for specific IH part numbers and viscosity grades.
Coolant Type:
Ethylene Glycol based antifreeze with water (50/50 mix) - consult manual for specific type and concentration.
General:
Wear on clutch components, potential leaks from hydraulic system seals, aging electrical wiring, wear in steering components, injector pump calibration.
Engine Reliability:
Generally robust engines but require consistent maintenance. Glow plug system may require attention in cold climates.
Manufacturer:
International Harvester (McCormick International in some markets)
Production Period:
Late 1950s to early 1960s
Market Segment:
Light to medium-duty utility tractor
Manufacturing Locations:
UK (likely by subsidiary or licensed manufacturer) and potentially other global locations.
