The Allis-Chalmers D-19 Diesel Tractor, produced in the late 1950s to early 1960s, represents a significant development in agricultural machinery. Known for its robust construction and reliable performance, this tractor was designed to be a powerful workhorse for demanding tasks. Its direct injection diesel engine, typically around 265 cubic inches, provided ample power for heavy draft work, complemented by a constant mesh gearbox offering multiple forward and reverse speeds. The D-19 was appreciated for its operational efficiency and durability, making it a valuable asset for farmers and operators of its era. This factory service repair manual provides comprehensive technical information for the Allis-Chalmers D-19 Diesel Tractor. It covers detailed procedures for engine overhaul, fuel system service, cooling system maintenance, lubrication, transmission repair, hydraulic system service, and electrical system diagnostics. The manual also includes information on the braking system, steering, chassis, and bodywork. With step-by-step instructions, troubleshooting guides, and precise specifications, this manual is an essential resource for owners, mechanics, and technicians to ensure the proper maintenance, repair, and longevity of the D-19 tractor. 🏷️ Basic Information Identification Make: Allis-Chalmers Model: D-19 Diesel Tractor Codes Model Series Code: D-19 Series 👋 Introduction Market Position Positioning: Essential technical reference for owners and mechanics maintaining the robust Allis-Chalmers D-19 Diesel Tractor. Competitive Analysis Value Proposition: Provides detailed, factory-accurate procedures essential for accurate diagnosis and repair, reducing downtime and costly mistakes. Key Features Authenticity: Based on original factory service literature, ensuring accuracy and completeness. Diagrams And Illustrations: Likely includes technical drawings, exploded views, and schematics to aid in understanding. 📋 Manual Details Coverage Areas Manual Type: Factory Service Repair Manual Language: English Format: Physical Print Page Count Number Of Pages: Exact page count not specified in product description, but factory service manuals are typically extensive, often 300+ pages. 📖 Manual Coverage Systems Covered Engine: Detailed disassembly, assembly, overhaul, and troubleshooting of the diesel engine. Fuel System: Service and repair procedures for the injection pump, injectors, fuel lines, and filters. Cooling System: Maintenance, repair, and troubleshooting of the radiator, water pump, thermostat, and fan. Lubrication System: Oil pump, filter, and oil flow diagrams, as well as lubrication schedules. Transmission: Repair and adjustment procedures for the transmission gearbox, clutch, and PTO. Hydraulic System: Service for the hydraulic pump, valves, cylinders, and reservoir, including troubleshooting. Electrical System: Wiring diagrams, starter, generator, battery, lighting, and ignition system service. Steering System: Adjustment, repair, and overhaul of the steering mechanism. Braking System: Service and repair of the brake master cylinder, wheel cylinders, and brake bands. Chassis And Suspension: Front axle, rear axle, and hitch component service. Bodywork And Frame: Component identification and basic repair procedures for sheet metal and frame. Power Take Off Pto: Service and adjustment procedures for the PTO engagement and shaft. Procedures Included Maintenance: Routine maintenance checks, lubrication, filter replacement, and fluid level checks. Troubleshooting: Diagnostic charts and procedures for common and uncommon issues. Disassembly And Assembly: Step-by-step instructions for removing and reinstalling major components and sub-assemblies. Overhaul: Detailed procedures for rebuilding engines, transmissions, hydraulic systems, etc. Specifications And Tolerances: Precise measurements, torque values, and clearances for all adjustable components. Troubleshooting Electrical: Diagnostic flowcharts for electrical system faults. Technical Depth Depth: Comprehensive; covers from basic maintenance to complete engine and transmission rebuilds. Precision Measurements: Includes precise specifications for engine component clearances, bearing preloads, and gear backlash. 📊 Manual Specifications File Format Print Quality: High-quality reproduction of original factory documentation. Print Quality Binding Type: Staple-bound or saddle-stitched, mimicking original factory manual construction. Binding Type Paper Type: Durable paper stock suitable for workshop environments. ⚙️ Engine Specifications Primary Engine Engine Type: Direct Injection Diesel Engine Model Designation: Typically an Allis-Chalmers or Perkins built diesel engine, specific model to be detailed within. Displacement: Typically around 265 cubic inches (4.34 Liters), actual displacement to be confirmed by manual. Performance Horsepower Rating: Exact HP rating varies by configuration, generally in the 50-60 PTO HP range. Torque Output: Specifications for torque delivery, crucial for heavy draft work. Fuel System Fuel Type: Diesel Fuel Injection System: Likely a Bosch or CAV inline injection pump with direct injection injectors. 🔧 Transmission Standard Transmission Type: Constant Mesh Gearbox Number Of Gears: Typically 6 forward and 2 reverse speeds, or similar configurations. Optional Power Take Off Pto: Standard PTO configurations, likely 540 RPM, with detailed service information. Features Clutch Type: Single plate, dry type clutch, with adjustment and replacement procedures. Differential Lock: Service information for the rear differential and locking mechanism, if equipped. 📐 Dimensions Exterior Overall Length: Approximate length from front to rear (without implements). Overall Width: Approximate width across the rear tires. Wheelbase: Distance between front and rear axle centers. Weights Operating Weight: Weight of the tractor without fluids or ballast, and with fluids. Drawbar Horsepower: Engine power at the drawbar, relevant for traction and pulling capacity. 🛡️ Safety Features Ratings Rollover Protection: Information regarding...