Comprehensive for servicemen; covers routine work and specific advanced features not in preceding manuals.
📊 Manual Specifications
File Format
Binding Type:
Likely bound for durability in a workshop environment (e.g., staple-bound, saddle-stitched, or hardbound if a reprint).
Print Quality
Paper Type:
Designed for workshop use, implying durable paper stock, possibly with protective covers. Print quality would be clear, legible text and diagrams.
⚙️ Engine Specifications
Primary Engine
Engine Type:
Diesel
Performance
B250 Engine Details:
McCormick BD-144 (4-cylinder diesel). Specific horsepower and torque figures would be detailed within the manual.
B275 Engine Details:
McCormick BD-154 (4-cylinder diesel). Likely higher displacement and power output than the BD-144. Specific figures detailed in manual.
Fuel System
Fuel Type:
Diesel Fuel
🔧 Transmission
Standard
Gearbox Type:
Sliding gear transmission, likely with multiple forward and reverse gears. Specific gear counts and ratios provided in manual.
Optional
Pto System:
B275 features CRPTO (Constant Running Power Take-Off), a significant feature detailed in this manual.
Features
Clutch Type:
Single or Dual-plate clutch, depending on PTO configuration. Details in manual.
📐 Dimensions
Exterior
Overall Dimensions:
Specific dimensions (length, width, height) are model-specific and expected to be within the manual for reference.
Weights
Operating Weight:
Weight specifications and distribution are critical for tractor operation and will be present in the manual.
🛡️ Safety Features
Active Features
Braking System:
Likely internal expanding shoe brakes. Manual will detail adjustments and maintenance.
Passive Features
Operator Station:
Basic operator platform with controls. Manual will cover safe operation and component interaction.
💡 Technology Features
Infotainment
Dashboard Features:
Basic instrumentation including oil pressure gauge, ammeter, temperature gauge, and tachometer. Manual covers their function and maintenance.
Driver Assistance
Steering System Enhancement:
Manual highlights the single drop arm steering on later B250s, indicating potential improvements over earlier steering designs. Details adjustments and repair.
Connectivity
Pto Technology:
CRPTO (Constant Running Power Take-Off) on the B275 is a key technological feature enabling independent PTO operation, with detailed operational and repair information.
🔧 Maintenance
Service Intervals
Engine Oil Change:
Typical intervals for this era would be around 50-100 operating hours. Manual will provide exact figures and oil type.
Fluid Specifications
Engine Oil Type:
Likely SAE 30 or SAE 10W-30 diesel engine oil. Manual will specify IH or equivalent standards.
Hydraulic Fluid Type:
Typically IH Hytran or a universal tractor transmission oil (UTTO). Manual will specify.
Known Issues
Common Wear Items:
Worn clutch friction plates, steering component wear (especially the single drop arm), injector pump issues, seal leaks are common in older tractors and addressed in manual.
📚 Vehicle History
Brand Heritage
Manufacturer:
International Harvester (IH), a major agricultural and industrial equipment manufacturer with a long history.
Model Evolution
Series Placement:
The B-series tractors were part of IH's successful line of utility tractors, evolving from earlier models and setting the stage for later designs.
Production
Production Period:
B250 and B275 were primarily produced in the mid-to-late 1950s. Specific production years detailed in manual.
🏆 Awards & Recognition
Recognitions
Industry Impact:
The B-series tractors were highly regarded for their reliability and performance in their class, contributing significantly to IH's market share in utility tractors.