This manual covers the John Deere 316, 318, and 420 tractors, typically produced in the 1980s. These utility tractors, powered by Onan B-Series engines such as the B43E, B43G, P218G, B48G, and P220G, are renowned for their durability and reliability, a hallmark of John Deere's legacy in agricultural and lawn care equipment. Designed for property maintenance and light landscaping, these models offer robust performance and are supported by comprehensive engineering. This comprehensive service manual, presented in English, provides factory-level technical detail for owners, DIY mechanics, and professional technicians. It encompasses detailed procedures for engine repair, electrical systems, power train, steering and brakes, hydraulic systems, and mower components. The manual includes step-by-step instructions, troubleshooting guides, diagnostic procedures, and clear illustrations, enabling effective maintenance, repair, and restoration of these John Deere tractors. 🏷️ Basic Information Identification Make: John Deere Model: 316, 318, 420 (Tractors) Engine Manufacturer: Onan Engine Family: Onan B-Series (B43E, B43G, P218G, B48G, P220G) 👋 Introduction Market Position Target Audience: Owners of John Deere 316, 318, and 420 tractors, DIY mechanics, professional technicians, and restoration enthusiasts. Competitive Analysis Value Proposition: Provides essential, factory-level repair and maintenance information to enable users to service, repair, restore, and maintain their tractors, saving on professional labor costs. Key Features Completeness: Highly detailed, comprehensive coverage mirroring professional workshop manuals. Accessibility: Instant download, compatible with all major operating systems. 📋 Manual Details Coverage Areas Manual Type: Service Manual / Repair Guide / Workshop Manual Language: English Format: PDF Download (potentially zipped) Page Count: Over 660 Pages File Size: Over 20 MB (can be up to 5 GB) 📖 Manual Coverage Systems Covered Engine Repair: Complete engine overhaul, troubleshooting, diagnosis, fuel system, air system, ignition system. Electrical System: Wiring diagrams, component location and operation, diagnosis, component tests, starter, alternator, battery. Power Train: Front PTO clutch, transmission, transmission control linkage, differential, rear axles, drive shaft. Steering And Brakes: Steering system diagnosis and repair, brake system diagnosis and repair. Hydraulic System: Hydraulic control valve, hydraulic system diagnosis, troubleshooting, operation. Mower Systems: Front axle, mower spindle, jack sheave repair, mower gear case repair. Procedures Included Maintenance: Preventative maintenance, routine servicing, fluid checks and changes. Troubleshooting: Detailed troubleshooting guides for all major systems, problem identification and resolution. Repair And Rebuild: Step-by-step instructions for component repair, rebuilding, and restoration. Diagnostics: Diagnostic procedures for engine, electrical, power train, steering, brakes, and hydraulic systems. Technical Depth Depth Of Information: Comprehensive, factory-level technical detail suitable for professional technicians and advanced DIY users. Illustrations: Clear, step-by-step illustrations, exploded views, component breakdowns, electrical schematics. 📊 Manual Specifications File Format File Type: PDF Searchability: Likely searchable text within the PDF, assuming it's not a scanned image-only document. Print Quality Printability: Printable on any computer and printer. Text Clarity: Crisp and clear text and illustrations. Binding Type Delivery Method: Digital Download Only (no CD/DVD or hard copy). Storage: User is responsible for saving the file after download; no lifetime storage provided. ⚙️ Engine Specifications Primary Engine Engine Models Covered: Onan B43E, B43G, P218G, B48G, P220G Performance Horsepower Ratings: 16 hp (12 kW), 18 hp (13.5 kW), 20 hp (15 kW), 22 hp (18 kW) Engine Type: 2-Cylinder, 4-Cycle (OHV or similar, specific to Onan B-series) Fuel System Fuel Type: Gasoline Technical Details Bore Stroke B43 P218: Bore: 82.55 mm (3.25 in.), Stroke: 66.55 mm (2.62 in.) Bore Stroke B48 P220: Bore: 90.42 mm (3.56 in.), Stroke: 73 mm (2.875 in.) / 76.20 mm (3.00 in.) (depending on specific variant) Displacement B43 P218: 710 cm3 (43.3 cu in.) Displacement B48 P220: 782 cm3 (47.7 cu in.) / 983 cm3 (60 cu in.) (depending on specific variant) 🔧 Transmission Standard Transmission Type: Hydrostatic Transmission (HST) Optional Transmission Variants: While likely standard on these models, manual does cover transmission repair and control linkage. Features Drive Shaft: Covered in manual for repair. Differential: Covered in manual for repair. 📐 Dimensions Exterior Model Specific Dimensions: Dimensions vary slightly between 316, 318, and 420 models; manual would contain specific chassis dimensions. Weights Operating Weight: Refer to specific model documentation or manual for accurate operating weights. 🛡️ Safety Features Ratings Safety Standards: Manual will detail safety precautions, operating procedures, and potentially safety system components relevant to these tractors. Active Features Operator Presence: Likely includes details on safety interlocks and operator presence controls. Passive Features Rollover Protection: May cover installation or maintenance of ROPS (Rollover Protective Structures) if equipped. 💡 Technology Features Infotainment Dashboard Controls: Manual will cover operation and maintenance of tractor controls, gauges, and indicators. Driver Assistance Operational Features: Details on hydrostatic control levers, PTO engagement, and hydraulic lift controls. 🔧 Maintenance Service Intervals Engine Oil Change: Refer to manual for specific intervals and oil types. Hydraulic Fluid Change: Refer to manual for specific intervals and fluid types. Filter Replacement: Manual will detail replacement intervals for oil, fuel, and hydraulic filters. Fluid Specifications Engine Oil...