This manual covers Case David Brown tractors, including models 780, 880, 990, and 1200, produced generally from the late 1950s through the 1970s. These robust and versatile agricultural machines, developed by David Brown Tractors Ltd., are known for their reliability and suitability for a wide range of farming tasks. The tractors typically feature diesel engines with manual transmissions and standard PTO systems, designed for efficient field performance. Their solid construction and straightforward engineering have made them enduring workhorses in the agricultural sector. This comprehensive service repair workshop manual provides complete factory service, repair, and workshop procedures for the specified Case David Brown tractor models. It details engine overhaul, transmission and clutch service, hydraulic system maintenance, electrical troubleshooting, and repair of braking, steering, axle, cooling, fuel, and exhaust systems. The manual includes routine maintenance schedules, troubleshooting guides, step-by-step repair instructions, adjustment procedures, and critical torque specifications, supported by detailed diagrams. It is intended for tractor owners, mechanics, and technicians seeking to maintain and repair these vehicles. 🏷️ Basic Information Identification Make: Case David Brown Model: 780, 880, 990, 1200 Vehicle Type: Tractor 👋 Introduction Market Position Target Audience: Tractor owners, mechanics, technicians, and agricultural enthusiasts. Competitive Analysis Value Proposition: Provides professional-level repair and maintenance information directly to the user, saving on labor costs. Key Features Instant Access: Immediate download available for quick access to repair information. Lifetime Usage: No expiration dates or renewal fees, providing long-term utility. Cross Platform Compatibility: Works on both Windows and MAC operating systems. 📋 Manual Details Coverage Areas Manual Scope: Complete factory service, repair, and workshop procedures. Page Count Estimated Pages: Hundreds (specific count not provided, but described as extensive) Manual Type Manual Classification: Service Repair Workshop Manual Language Language: English (implied by context of product description) Format Digital Format: Downloadable PDF 📖 Manual Coverage Systems Covered Engine Service: Detailed engine overhaul, troubleshooting, tuning, and component replacement. Transmission Service: Repair and maintenance of gearbox, clutch, and power take-off (PTO) systems. Hydraulic System Service: Maintenance and repair of the hydraulic lift, pumps, and control valves. Electrical System Service: Troubleshooting and repair of starting, charging, lighting, and instrumentation circuits. Braking System Service: Service and repair procedures for mechanical and hydraulic braking systems. Steering System Service: Maintenance and repair of steering mechanisms, including linkages and hydraulic assist (if applicable). Front Axle Service: Repair and maintenance of the front axle assembly, including kingpins and steering joints. Rear Axle And Differential Service: Overhaul and repair procedures for the rear axle housing and differential unit. Cooling System Service: Maintenance, flushing, and repair of the radiator, thermostat, and cooling fan. Fuel System Service: Servicing of fuel tanks, lines, filters, and injection pumps (diesel). Exhaust System Service: Inspection and replacement of mufflers, exhaust pipes, and related components. Operator Station Service: Repair and maintenance of controls, seating, and dashboard components. Bodywork And Sheet Metal: Repair and alignment of body panels, fenders, and engine covers. Procedures Included Routine Maintenance: Oil changes, filter replacements, lubrication, and general inspection procedures. Troubleshooting Guides: Diagnostic procedures and solutions for common mechanical and electrical faults. Repair Procedures: Step-by-step instructions for overhauling and replacing major and minor components. Reassembly Instructions: Detailed guidance for putting repaired systems back together correctly. Adjustment Procedures: Specifications and methods for adjusting engine timing, clutch, brakes, etc. Torque Specifications: Precise torque values for all critical fasteners. Diagnostic Trouble Codes: While modern DTCs are not applicable, the manual provides systematic diagnostic steps. Technical Depth Depth Of Information: Comprehensive, suitable for complete rebuilds and advanced diagnostics. Diagram Quality: Detailed photos and exploded diagrams for clarity. 📊 Manual Specifications File Format PDF Features: Printable (single page or entire manual), usable on multiple devices, lifetime access. Print Quality Printability: High-quality, allows for printing of all pages. Binding Type Digital Binding: N/A (Digital download) Paper Type Digital Paper Type: N/A (Digital download) ⚙️ Engine Specifications Primary Engine Engine Type: Typically diesel engines (specific models may vary, e.g., Perkins or David Brown diesel engines). Performance Engine Displacement: Varies by model: 780 (e.g., ~2.5L), 880/990 (e.g., ~3.0-3.5L), 1200 (e.g., ~4.0L or larger). Specifics will be detailed within the manual. Horsepower Range: Typically 40-70 HP, depending on the specific model and engine variant. Detailed figures provided in manual. Fuel System Fuel Type: Diesel Injection System: Indirect injection (IDI) typically, with details on specific pump types (e.g., CAV, Simms) and injectors. 🔧 Transmission Standard Transmission Type: Manual gearbox with multiple forward and reverse gears (e.g., 8-speed or more). Optional Power Take Off Pto: Standard PTO systems (e.g., 540 RPM, 1000 RPM) and potentially live PTO on some models. Features Gear Selection: Details on shifting mechanisms and gear ratios for optimal field performance. Clutch System: Single or dual-stage clutch operation, including adjustment and replacement. 📐 Dimensions Weights Operating Weight: Varies significantly by model, typically ranging from 3,500 lbs to 6,000+ lbs (approx. 1600 kg to 2700+ kg). Drawbar...