🏷️ Basic Information Identification Make: International Harvester (IH) Model: Farmall B & BN Generation Production Years: 1941-1950 (Farmall B); 1949-1950 (Farmall BN) Codes Engine Code Gasoline: IH C-113 (early); IH C-123 (late) Engine Code Diesel: Not applicable for B/BN models 👋 Introduction Market Position Target User: Owners, operators, mechanics, restorers, collectors of Farmall B and BN tractors. Competitive Analysis Value Proposition: Offers a comprehensive suite of six essential manuals for detailed service, repair, parts identification, and operation, aiming for superior quality and searchability compared to generic offerings. Key Features Manual Features: Searchable, bookmarked, indexed PDFs, clear and printable pages, covers factory and aftermarket information. 📋 Manual Details Coverage Areas Total Manuals Included: 6 Primary Coverage: Farmall B & BN Tractors Page Count Estimated Total Pages: Varies by manual; significant coverage across all six. Manual Type Manual Set Types: Service Repair, Parts Catalog, Owner's/Operator's, Electric Starting & Lighting, Special Attachments Assembly, Aftermarket Shop Manual Language Language: English Format Digital Format: Zipped PDF Files 📖 Manual Coverage Systems Covered Engine Systems: Engine mechanics, cooling, lubrication, fuel, ignition, starting, carburetor, LP Gas System, Diesel Fuel System (for BN specific if applicable but primarily gasoline) Drivetrain Systems: Clutch, transmission, differential, final drive, rear axle, PTO (Power Take-Off) Chassis Systems: Chassis, steering gear, brakes, front system Electrical Systems: Ignition system, starting system, lighting attachments, electrical system general Hydraulic Systems: Hydraulic Lift-alls, Touch Control Procedures Included Repair Procedures: Step-by-step disassembly and reassembly, engine overhaul, transmission repair, brake adjustments, electrical diagnostics, carburetor rebuilding Maintenance Procedures: Lubrication schedules, tune-up procedures, fluid changes, filter replacement, general maintenance Troubleshooting: Fault finding, diagnostic guides, common problems and solutions Parts Identification: Exploded view diagrams, part numbers, part descriptions, assembly details Special Equipment: Installation and assembly of electric starting/lighting attachments, special attachments Technical Depth Depth: Comprehensive, from basic operation and maintenance to detailed repair and overhaul procedures. Includes factory-level detail for service and parts. 📊 Manual Specifications File Format Format: PDF Print Quality Clarity: Clear pages, searchable text, bookmarked for easy navigation. Zoom Capability: Up to 400% without distortion. Binding Type Binding: Digital (PDF) - Not applicable for physical binding. Paper Type Paper Type: Digital (PDF) - Printable for physical use. ⚙️ Engine Specifications Primary Engine Engine Model Gasoline: IH C-113 (early production) / C-123 (late production) Engine Type: Inline 4-cylinder, L-head (F-head for C-123) Performance Displacement C113: 113.1 cubic inches (1.85 liters) Displacement C123: 123.2 cubic inches (2.02 liters) Bore X Stroke C113: 3.0625 in x 3.125 in Bore X Stroke C123: 3.125 in x 3.25 in Horsepower Rated Drawbar: Approx. 17-18 HP Horsepower Rated Belt: Approx. 20-21 HP Fuel System Carburetor Type: IH Vertical, Marvel-Schebler Fuel Type: Gasoline (standard); LPG option available on BN 🔧 Transmission Standard Transmission Type: Sliding Gear, Manual Number Of Gears: 4 Forward, 1 Reverse Optional Optional Gearbox: Not applicable Features Clutch Type: Single Plate, Dry 📐 Dimensions Exterior Wheelbase: 73.5 inches (1867 mm) Weights Shipping Weight Approx: 2500-2800 lbs (depending on configuration) 🛡️ Safety Features Ratings Safety Certification: Not applicable by modern standards; manual covers safe operation and maintenance for the era. Active Features Braking System: Internal expanding shoe type, operated by foot pedal (mechanical). Passive Features Operator Protection: Basic operator platform, no ROPS or seatbelts standard on original models. Manual may detail safe operating practices. 💡 Technology Features Infotainment Infotainment System: Not applicable; tractor designed for utility, not comfort/entertainment. Driver Assistance Driver Assistance Features: Not applicable. Connectivity Connectivity Features: Not applicable. 🔧 Maintenance Service Intervals Engine Oil Change: Typically every 40-50 operating hours or annually (refer to owner's manual for specific recommendations). Transmission Differential Oil Change: Annually or as per manual recommendations. Fluid Specifications Engine Oil Type: SAE 30 or 10W-30 (depending on climate and season, consult manual for exact specs). Transmission Differential Oil Type: IH Hy-Trans Fluid or equivalent (e.g., GL-1 Gear Oil, consult manual). Coolant Type: Water and antifreeze mixture, typically ethylene glycol based. Hydraulic Fluid Type: IH Hy-Trans Fluid or equivalent (for Touch Control/Lift-All). Known Issues Common Wear Points: Carburetor issues, ignition system wear, clutch wear, differential and transmission seal leaks, PTO shaft wear, aging wiring harness. Engine Specifics: C-113/C-123 engines can develop oil consumption; valve seat wear is common if unleaded fuel is used without hardened seats. 📚 Vehicle History Brand Heritage Manufacturer: International Harvester (IH) - a major American manufacturer of agricultural and industrial machinery. Model Evolution Farmall Series Context: The Farmall B was part of IH's successful line of general-purpose, row-crop tractors, following the popular 'Letter Series' (A, B, C) designed for smaller farms and gardens. Bn Variant: The BN was a propane-fueled version of the Farmall B, designed for farms where propane was readily available and cost-effective. Production Manufacturing Location: United States (primarily Rock Island, Illinois) 🏆 Awards & Recognition Recognitions Tractor Recognition: The Farmall B series was highly regarded for its versatility, affordability, and suitability for small...