🏷️ Basic Information Identification Make: Allis-Chalmers Model: D-21, D-21 Series II, Two-Ten (210), Two-Twenty (220) Common Model Codes: D21, 210, 220 👋 Introduction Market Position Target Audience: Owners, operators, mechanics, and technicians of Allis-Chalmers D-21, 210, and 220 tractors requiring in-depth repair and maintenance information. Key Features Content Quality: Includes hundreds of pages with detailed photos and diagrams, step-by-step instructions, and exploded views for accurate repair execution. Diagnostic Focus: Emphasis on troubleshooting to help users identify the root cause of problems efficiently. Value Proposition Accessibility: Instant download for immediate use on computers, tablets, or smartphones. 📋 Manual Details Coverage Areas Coverage Scope: Comprehensive service, repair, and troubleshooting for Allis-Chalmers D-21, D-21 Series II, Two-Ten (210), and Two-Twenty (220) tractors. Page Count Estimated Pages: Hundreds (specific number not provided in product description, but described as 'hundreds of pages' with detailed photos & diagrams). Manual Type Type: Factory Service Repair Workshop Manual Language Language: English Format Digital Format: PDF Download 📖 Manual Coverage Systems Covered Engine Overhaul: Complete engine disassembly, inspection, repair, and reassembly procedures. Fuel System: Carburetor (if applicable), fuel injection systems, fuel pumps, filters, and lines. Cooling System: Radiator, fan, water pump, thermostat, hoses, and coolant specifications. Lubrication System: Oil pump, oil filter, oil galleries, lubrication points, and fluid recommendations. Ignition System: Spark plugs, ignition coils, distributors, wiring, and timing. Transmission Manual: Manual transmission overhaul, gear synchronization, shift linkage, and fluid specifications. Transmission Powershift: Power steering (if equipped), hydraulic clutch systems, and related components. Hydraulic System: Tractor hydraulics, PTO hydraulics, implement control hydraulics, pumps, valves, cylinders, and fluid requirements. Power Take Off Pto: PTO engagement, operation, and repair. Electrical System: Wiring diagrams, battery, starting system, charging system, lighting, and accessory circuits. Steering System: Manual steering systems, steering linkage, and related components. Braking System: Brake system operation, adjustment, and repair (e.g., mechanical or hydraulic brakes depending on configuration). Front Axle And Steering: Front axle assembly, kingpins, tie rods, and front wheel alignment. Rear Axle And Differential: Rear axle housing, differential assembly, final drives, and wheel bearings. Chassis And Frame: Frame construction, mounting points, and chassis components. Sheet Metal And Body: Fenders, hood, platform, and cab components (if applicable). Instrumentation And Controls: Dashboard gauges, levers, pedals, and control mechanisms. Procedures Included Routine Maintenance: Scheduled maintenance, lubrication, fluid changes, filter replacements, and pre-operation checks. Troubleshooting Guides: Diagnostic procedures for identifying and resolving common mechanical and electrical issues. Repair Procedures: Step-by-step instructions for component repair and replacement. Overhaul Instructions: Detailed instructions for complete engine, transmission, and hydraulic system overhauls. Adjustment Procedures: Instructions for adjusting engine timing, valve clearances, brake systems, clutch engagement, etc. Assembly And Disassembly: Detailed guidance for taking apart and reassembling various tractor systems. Governor Adjustment: Procedures for setting engine governor speed and response. Injector Calibration: Instructions for testing and calibrating diesel fuel injectors (if applicable). Front Wheel Alignment: Specifications and procedures for setting front-wheel toe-in and camber. Hydraulic Pump Testing: Methods for testing the flow and pressure of the tractor's hydraulic pump. Pto Clutch Adjustment: Instructions for adjusting the PTO engagement clutch mechanism. Technical Depth Depth Of Information: Extremely detailed, suitable for professional mechanics and experienced technicians; includes step-by-step instructions and exploded diagrams. Torque Specifications: Critical torque values for engine components, transmission fasteners, axle bolts, and hydraulic fittings are provided. Clearances: Specific tolerances and clearances for engine parts (e.g., piston ring gap, bearing clearances, valve lash) are included. Wiring Diagrams: Detailed electrical schematics illustrating all circuits and component connections. Exploded Diagrams: Numerous exploded views to clearly illustrate component relationships and assembly order. Manual Type Purpose: Designed for hands-on repair and maintenance, providing the practical knowledge needed to service the tractors. 📊 Manual Specifications File Format File Type: PDF Print Quality Printable: Yes, individual pages or entire manual can be printed. Usage Rights Device Compatibility: Usable on unlimited computers (Windows & MAC). Licensing License Term: Lifetime use, no expiry dates, no renewal fees. Content Version Version Completeness: Full, unlimted version. Not a trial or limited edition. ⚙️ Engine Specifications Primary Engine D21 210 Engine Model: Allis-Chalmers 4-cylinder, direct-injection diesel (specific engine model number likely present in manual). Displacement: Approximately 301 cubic inches (4.9 L) for D-21 and 210 models. Primary Engine 220 Engine Model: Allis-Chalmers 4-cylinder, direct-injection diesel (specific engine model number likely present in manual). Displacement: Approximately 377 cubic inches (6.2 L) for the 220 model. Performance D21 210 Horsepower Drawbar: Typically in the range of 60-70 HP drawbar for D-21 and 210 models. Performance 220 Horsepower Drawbar: Typically in the range of 70-80 HP drawbar for the 220 model. Fuel System Fuel Type: Diesel fuel Injection System: Direct injection, likely with rotary or inline fuel injection pumps (details in manual). 🔧 Transmission Standard Transmission D21 210 Type: 10-speed constant mesh manual transmission (often referred to as a 'Power Director' or similar clutch assist). Standard Transmission 220 Type: 10-speed constant mesh...