This manual covers the Allis-Chalmers D21 Series 2 tractor, a robust piece of agricultural equipment known for its enduring performance. While specific production years are not detailed, this model represents a significant offering from Allis-Chalmers, a manufacturer with a strong legacy in agricultural and industrial machinery. The D21 Series 2 was engineered for demanding tasks, reflecting the brand's commitment to reliability and functional design, making it a valuable asset for various farming and operational needs. This workshop service manual provides comprehensive guidance for the repair and service of the Allis-Chalmers D21 Series 2 tractor. With 63 pages of detailed information in English, it covers all major systems including the engine, transmission, hydraulics, electrical system, axles, steering, braking, and power take-off. The manual includes step-by-step repair procedures, diagnostic information, adjustment specifications, removal and installation instructions, disassembly and assembly details, lubrication guidelines, and essential safety precautions. It is designed to assist both mechanics and DIY individuals in performing efficient and accurate maintenance and repairs, ensuring the longevity and optimal performance of the tractor. 🏷️ Basic Information Identification Make: Allis-Chalmers Model: D21 Series 2 Vehicle Type: Tractor 👋 Introduction Market Position Target Audience: Mechanics and DIY persons Value Proposition: Comprehensive, easy-to-read reference for efficient and accurate repair Key Features Content Focus: Data, characteristics, instructions, and methodology for repair interventions Ease Of Use: Prepared for simple explanation, enabling even new personnel to perform satisfactory service Completeness: 100% complete and intact, no missing/corrupt pages/sections 📋 Manual Details Coverage Areas Primary Focus: Repair and Service Page Count Total Pages: 63 Manual Type Type: Workshop Service Manual Language Language: English Format File Format: PDF Downloadable: Instant Download Printable: Yes Compatibility Operating Systems: Windows, Mac, Linux Requirements Software Requirement: Adobe Reader 📖 Manual Coverage Systems Covered Engine: Detailed diagnosis, testing, adjustments, removal, installation, disassembly, assembly Transmission: Detailed diagnosis, testing, adjustments, removal, installation, disassembly, assembly Hydraulics: Detailed diagnosis, testing, adjustments, removal, installation, disassembly, assembly Electrical System: Detailed diagnosis, testing, adjustments, removal, installation, disassembly, assembly Front Axle: Detailed diagnosis, testing, adjustments, removal, installation, disassembly, assembly Rear Axle: Detailed diagnosis, testing, adjustments, removal, installation, disassembly, assembly Steering System: Detailed diagnosis, testing, adjustments, removal, installation, disassembly, assembly Braking System: Detailed diagnosis, testing, adjustments, removal, installation, disassembly, assembly Power Take Off Pto: Detailed diagnosis, testing, adjustments, removal, installation, disassembly, assembly Operator Station: Detailed diagnosis, testing, adjustments, removal, installation, disassembly, assembly Procedures Included General Maintenance: Yes Troubleshooting: Yes, comprehensive diagnostic information Repair: Step-by-step repair procedures Adjustment: Detailed adjustment procedures and specifications Removal Installation: Comprehensive procedures for component removal and installation Disassembly Assembly: Detailed procedures for component disassembly and reassembly Lubrication: Information on approved lubricants and application Technical Depth Depth: Comprehensive, covering basic maintenance to complete rebuilds Diagrams: Detailed illustrations, exploded diagrams, drawings, and photos Special Tools: References and illustrations for special service tool numbers Specifications: Includes service data, factory specifications, allowable limits, and tightening torques Wear Limits: Includes reference to wear limits for components Safety Precautions: Includes special notes, important points, precautions, DANGER, CAUTION, and NOTE remarks Additional Information Pictorial Diagrams: Bumper-to-bumper pictorial diagrams included. Assembly Details: Useful assembly details provided. Functional Descriptions: Information on construction and function included to aid understanding before servicing. Troubleshooting Methods: Specific troubleshooting procedures outlined. Factory Specifications: Factory specifications and allowable limits are a key component of the manual. Maintenance Schedules: Crucial for maximizing tractor life, as stated in the manual's advice. Torque Values: Detailed torque values for service assembly and installation are provided. Part Replacement Guidelines: Emphasis on using correct OEM fasteners when replacing, aligning with the manual's guidance on reliability. 📊 Manual Specifications File Format Quality: High-quality PDF, viewable on any computer Searchable: Implied by PDF format, enabling zoom and print Print Quality Printability: All pages printable for physical reference Binding Type Binding: Not applicable for PDF download Paper Type Paper Type: Not applicable for PDF download ⚙️ Engine Specifications Primary Engine Make Model: Allis-Chalmers D21 Series 2 (Specific engine model not detailed in provided info, but assumed to be the factory-equipped engine for this tractor) Performance Horsepower: Not specified in provided information, requires consultation of the manual or historical data. Torque: Not specified in provided information, requires consultation of the manual or historical data. Fuel System Type: Not specified in provided information, likely diesel based on typical tractor configurations of the era, requires manual confirmation. 🔧 Transmission Standard Type: Not specified in provided information, likely a manual transmission with multiple gears, requires manual confirmation. Optional Features: Not specified in provided information. Features Fluid Type: Not specified in provided information, requires manual consultation. 📐 Dimensions Exterior Length: Not specified in provided information, requires manual consultation. Width: Not specified in provided information, requires manual consultation. Height: Not specified in provided information, requires manual consultation. Weights Operating Weight: Not specified in provided information, requires manual consultation. 🛡️ Safety Features Ratings Crash Test Ratings: Not applicable for tractors of this...