🏷️ Basic Information Identification Make: Allis-Chalmers Model: WD Codes Engine Code Family: Allis-Chalmers gasoline inline-4 👋 Introduction Market Position Target Audience: Do-it-yourself tractor owners and experienced mechanics Value Proposition: Inexpensive way to keep the tractor working properly, number one source for repair and service information Key Features Navigation: Numbered table of contents for fast access Instructional Clarity: Numbered instructions, detailed substeps, bold figure numbers 📋 Manual Details Coverage Areas Primary Focus: Service, Repair, and Maintenance Secondary Focus: Troubleshooting and Diagnostics Page Count Estimated Page Count: Extensive (specific count not provided, but implies comprehensive coverage) Manual Type Type: Workshop Service Repair Manual Language Language: English Format File Format: PDF Delivery Method: Instant Download Software Requirements: Adobe PDF Reader, WinZip Operating System Compatibility: All Versions of Windows & Mac 📖 Manual Coverage Systems Covered Engine Mechanical: Yes Engine Electrical: Yes Emission Control: Yes Fuel System: Yes Suspension: Yes Clutch: Yes Manual Transaxle: Yes Automatic Transaxle: Yes (Note: WD primarily had manual transmissions, this may refer to related models or derivatives if applicable, or advanced power steering/transmission systems) Driveshaft Axle: Yes Steering: Yes Brakes: Yes Body Interior: Yes Body Exterior: Yes Body Electrical: Yes Restraint Systems: Yes (Likely refers to operator safety features and operator station design) Procedures Included Repair Procedures: Detailed step-by-step instructions for all major systems Maintenance Procedures: Included as part of service and repair Troubleshooting: Integrated within system repairs and dedicated sections Electrical Diagnostics: Combined with detailed wiring diagrams Rebuild Procedures: Implied by comprehensive coverage and step-by-step instructions Technical Depth Depth: Comprehensive (covers do-it-yourselfer to experienced mechanic) Illustrations: Detailed illustrations, drawings, and photos Diagrams: Wiring schematics, system diagrams Specifications: Detailed technical specifications throughout Notes Cautions Warnings: Included for critical information 📊 Manual Specifications File Format File Type: PDF Print Quality Printability: Fully Printable Zoom Capability: Yes (Zoom IN/OUT) Binding Type Binding: Digital (Printable PDF) Paper Type Paper Type: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine Type: Allis-Chalmers gasoline, inline 4-cylinder (Specific engine model not listed but characteristic of WD) Performance Horsepower: Typically in the 35-45 PTO HP range (specific model dependent) Torque: Not specified, but adequate for typical farm applications Fuel System Fuel Type: Gasoline Carburetor: Single barrel carburetor (common type for this era) Cooling System Cooling Method: Water Cooled Ignition System Ignition Type: Distributor Ignition System 🔧 Transmission Standard Transmission Type: Manual Transmission Gear Speeds: Typically 4 forward, 1 reverse (specifics may vary slightly by sub-model) Features Power Take Off Pto: Standard PTO (540 RPM typical) Differential Lock: Likely equipped with a foot-operated differential lock 📐 Dimensions Weights Operating Weight: Approx. 4,500 - 5,000 lbs (depending on configuration) Wheelbase: Approx. 76 inches Length: Approx. 125 inches Width: Approx. 70 inches (at rear wheels, adjustable) Height: Approx. 60 inches (to top of steering wheel) 🛡️ Safety Features Ratings Safety Standards: Operated under agricultural safety practices of the era Active Features Braking System: Mechanical Drum Brakes Parking Brake: Hand-lever actuated parking brake Passive Features Operator Station: Open station, operator presence control might be basic or absent depending on specific features 💡 Technology Features Infotainment Infotainment System: Not Applicable (Tractor of its era) Driver Assistance Driver Assistance Features: Not Applicable (Tractor of its era) 🔧 Maintenance Service Intervals Engine Oil Change: Typically every 50-100 operating hours or annually (specific recommendation in manual) Transmission Oil Change: Typically every 600-1200 operating hours (refer to manual for precise interval) Grease Points: Daily or weekly lubrication of various pivot points and grease fittings Fluid Specifications Engine Oil Type: SAE 30 or 20W-30 API CD/SE (manual would specify exact viscosity and API service category) Transmission Hydraulic Fluid: Allis-Chalmers HD "70" Hydraulic Fluid or equivalent (manual will specify exact type and viscosity, e.g., 80W-90 gear oil for transmission gears, but hydraulics often separate or shared) Coolant Type: Ethylene glycol based antifreeze with corrosion inhibitors Known Issues Carburetor Problems: Clogging, wear, and adjustment issues due to age and fuel quality Ignition System Wear: Distributor points, condenser, and coil wear leading to ignition problems Hydraulic System Leaks: Seals and hoses degrading over time, leading to hydraulic fluid leaks Clutch Wear: Clutch plate wear and adjustment issues common with heavy use 📚 Vehicle History Brand Heritage Manufacturer Origin: United States (Allis-Chalmers Manufacturing Company) Model Evolution Predecessor: Allis-Chalmers Model C Successor: Allis-Chalmers WD45 Production Production Years: 1948-1952 Production Location: Milwaukee, Wisconsin, USA 🏆 Awards & Recognition Recognitions Industry Recognition: Renowned for its reliability and versatility during its production run