🏷️ Basic Information Identification Make: David Brown Manufacturer: David Brown Tractors (a division of Case Corporation) Model: 780 Product Name: Case David Brown Tractor 780 Parts Catalog Codes Publication Number: TP647 👋 Introduction Market Position Market Position: The David Brown 780 was a versatile and popular utility tractor during its production run, serving agricultural and industrial needs. This parts catalog is crucial for owners and mechanics maintaining these robust machines. Target Audience: Farm owners, tractor mechanics, agricultural repair shops, parts suppliers, and historical vehicle enthusiasts. Competitive Analysis Competitive Landscape: Competed with similar models from manufacturers like Fordson, Massey Ferguson, and International Harvester in the mid-horsepower utility tractor segment. Key Features Key Features: The 780 model was known for its robust construction, reliable diesel engine, and adaptable PTO and hydraulic systems, making it suitable for a wide range of farm operations. 📋 Manual Details Coverage Areas Coverage Scope: Comprehensive parts identification and cataloging for the David Brown 780 tractor. Page Count Page Count: 119 Manual Type Manual Type: Parts Service Catalog Language Language: English Format Format: Printed Catalog (implied by historical context of TP numbers) 📖 Manual Coverage Systems Covered Covered Systems: Engine, transmission, drivetrain, hydraulics, steering, braking system, electrical system, chassis, front axle, rear axle, PTO, linkage, operator controls, operator station, bodywork, implements mounting points. Engine Components: Cylinder head, block, pistons, crankshaft, camshaft, valves, oil pump, water pump, fuel system components (injectors, pumps), exhaust system parts. Transmission Components: Gears, shafts, bearings, synchronizers, clutch assembly, PTO gearbox, differential assembly. Hydraulic System Components: Hydraulic pump, control valve, lift arms, draft control components, hydraulic cylinders, fluid reservoir, filter elements. Steering System Components: Steering column, steering box, tie rods, king pins, front axle components. Braking System Components: Brake discs or drums, calipers or shoes, master cylinder, brake pedal linkage, hydraulic lines. Electrical System Components: Starter motor, alternator, battery, wiring harnesses, lighting components (headlights, taillights), switches, instrumentation (fuel gauge, temperature gauge). Chassis And Bodywork Components: Frame components, drawbar, fenders, operator platform, seat mounting, radiator grille, fuel tank, battery box. Procedures Included Included Procedures: Parts identification, assembly diagrams, sub-assembly breakdowns, component listing with part numbers, exploded views for visual reference. Assembly Diagrams: Detailed diagrams showing the correct assembly order and relationships of components for various systems. Part Number Identification: Explicit listing of original equipment manufacturer (OEM) part numbers for every component illustrated. Technical Depth Technical Depth: Detailed parts breakdown for repair, replacement, and inventory management. Essential for accurate parts ordering and understanding component relationships. Precision Level: High precision in component identification and referencing, essential for ordering correct replacement parts. Usage Context: Primarily for parts ordering, inventory management, and understanding the construction of the tractor. Not a diagnostic or repair manual in terms of step-by-step procedures, but critical for acquiring the necessary parts for those procedures. 📊 Manual Specifications File Format File Format: Print (historically, though digital scans may exist) Digital Availability: Original format is print. Digital scans (PDF) are common for historical manuals and may exist in this format. Print Quality Print Quality: Standard for technical documentation of its era (typically black and white with clear line drawings). Binding Type Binding Type: Stapled or perfect bound (typical for technical manuals). Paper Type Paper Type: Durable paper stock, suitable for workshop environments. ⚙️ Engine Specifications Primary Engine Engine Model: Likely a David Brown diesel engine (specific model designation varies by variant, e.g., AD4/380, AD4/400). Performance Displacement: Typically in the range of 3.5 to 4.0 liters, depending on the specific engine variant. Horsepower Range: Around 50-60 PTO horsepower (estimated). Torque Output: Estimated torque figures would be available in specific engine variant documentation, but would support heavy draft work. Fuel System Fuel Type: Diesel Injection System: Likely direct injection, potentially with rotary or inline fuel pumps from manufacturers like CAV or Simms. 🔧 Transmission Standard Transmission Type: Manual gearbox with multiple forward and reverse speeds. Optional Optional Features: May have offered a dual-clutch system (Selectamatic or similar David Brown innovations) for enhanced operational flexibility. Features Gear Selection: Likely a main gear lever and a range selector for different operational speeds. 📐 Dimensions Exterior Wheelbase: Varies by specific 780 model variant (e.g., standard, narrow, low clearance). Overall Length: Approximately 10-12 feet (3-3.6 meters) depending on hitch configuration. Overall Width: Around 5-6 feet (1.5-1.8 meters) depending on tire size and axle width. Weights Operating Weight: Approximately 4,000 - 4,500 lbs (1800 - 2000 kg) depending on configuration. Tire Sizes: Commonly fitted with rear tires around 13.6-28 or 14.9-28 and front tires around 6.00-16 or 7.50-16. 🛡️ Safety Features Ratings Safety Considerations: As a tractor of its era, safety features are basic. Emphasis is on operator responsibility and proper use of the machine. The catalog would identify safety-related parts like brake components, steering linkages, and guards. Active Features Active Safety Components: Brake system components, steering system components, lighting and signaling parts. Passive...