🏷️ Basic Information Identification Make: Case David Brown Model: 1690 Tractor Codes Product Type: Tractor Parts Catalog Manual Collection 👋 Introduction Market Position Category: Heavy-duty agricultural tractor. Target User: Farm owners, mechanics, parts suppliers, and restoration enthusiasts. Competitive Analysis Market Segment: Mid-range to heavy-duty farm tractors of its era. Key Features Value Proposition: Provides essential illustrated parts breakdown for accurate identification and ordering of replacement parts, crucial for maintaining operational uptime and preserving the value of the Case David Brown 1690. 📋 Manual Details Coverage Areas Primary Coverage: Case David Brown 1690 Tractor Secondary Coverage: Special Equipment for Case David Brown Tractors (likely including 1690) Page Count Estimated Total Pages: Estimated 500-800 pages (combined, typical for comprehensive parts catalogs of this era) Manual Type Catalog Type: Factory Illustrated Parts Catalog Manual & Special Equipment Parts Catalog Language Language: English Format Format: Downloadable PDF 📖 Manual Coverage Systems Covered Engine Assembly: Complete breakdown of engine components, including cylinder block, head, crankshaft, pistons, connecting rods, camshaft, valve train, cooling system, lubrication system, and fuel system components. Fuel System: Detailed illustrations and part numbers for fuel injection pump, injectors, fuel lines, filters, and associated hardware. Cooling System: Radiator, fan, water pump, thermostats, hoses, and related components. Lubrication System: Oil pump, oil filters, oil pan, and related lubrication passages and components. Transmission And Drivetrain: Internal components of the gearbox, clutch assembly, PTO (Power Take-Off) components, differential, rear axle, and drive shafts. Hydraulic System: Hydraulic pump, control valves, lift arms, hydraulic cylinders, hoses, and filters for the three-point hitch and external hydraulic services. Electrical System: Starter motor, alternator, battery, wiring harnesses, lights, switches, instrument panel components, and potentially ignition/pre-heat systems. Braking System: Brake assemblies (likely internal expanding shoe or disc for dry/wet applications), brake linkages, and control mechanisms. Steering System: Components of the hydrostatic power steering system, including steering column, pump, steering cylinder, and associated plumbing. Front Axle And Steering Linkage: Front axle beam, kingpins, tie rods, drag links, and wheel hubs. Rear Axle And Hubs: Rear wheel hubs, axleshafts, and associated bearings. Chassis And Frame: Main chassis components, drawbar, front and rear weights (if applicable), and mounting hardware. Operator Station: Seat assembly, controls (levers, pedals), dashboard, fenders, and cab components (if equipped). Bodywork And Sheet Metal: Bonnet, side panels, fenders, battery box, and other exterior body parts. Power Take Off Pto: Rear PTO clutch and shaft, and potentially a mid-PTO if it was an option or part of special equipment. Special Equipment: Components specific to various attachments and implements designed for the tractor, as detailed in the second manual. Procedures Included Part Identification: Identification of all replaceable parts with detailed exploded view diagrams and corresponding part numbers. Assembly Disassembly: Visual guidance for the correct sequence of assembly and disassembly for major tractor components. Component Interchangeability: Implicitly covers component interchangeability through part number references, aiding in sourcing replacements. Technical Depth Depth Level: Comprehensive for parts sourcing and identification. Does not typically include repair procedures or torque specifications, which would be found in a Service Manual. Focus is on 'what' and 'which part number'. 📊 Manual Specifications File Format File Type: PDF (Portable Document Format) Print Quality Enhancements: Improved Quality. This implies higher resolution images and clearer text compared to original scanned manuals. Binding Type Binding: N/A (Digital Download) Paper Type Paper: N/A (Digital Download) Features Searchability: Searchable Text. Allows users to quickly find specific terms, part numbers, or component names within the PDF. Navigation: Bookmarks. Provides a structured way to navigate through different sections and systems of the manual. Indexing: Index. Facilitates finding specific parts or sections through an alphabetical or categorized listing. ⚙️ Engine Specifications Primary Engine Engine Manufacturer: David Brown (likely sourced or manufactured by them under license/design). Engine Type: Diesel Engine Configuration: Likely a 4-cylinder or 6-cylinder inline diesel engine. Performance Horsepower Rating: Approximately 80-90 PTO horsepower (exact figures vary by specific engine tune and measurement). Torque Rating: Sufficient torque for heavy draft work, specific figures typically found in service manuals. Fuel System Fuel Type: Diesel Fuel Injection System: Indirect Injection (IDI) or Direct Injection (DI) depending on specific model year and engine variant, likely with a rotary or inline injection pump. 🔧 Transmission Standard Transmission Type: Manual Synchromesh Gearbox with High/Low range (likely a 12-speed or 16-speed transmission). Optional Optional Features: Possible creep gears or powershift options depending on the specific market and production run. Features Pto Options: Standard 540/1000 RPM Power Take-Off (PTO) is common for tractors of this class. 📐 Dimensions Exterior Wheelbase: Typical for this class, around 2.3-2.5 meters (90-100 inches). Length: Approx. 4.0-4.5 meters (157-177 inches). Width: Approx. 1.8-2.2 meters (71-87 inches) depending on tire configuration. Weights Operating Weight: Likely in the range of 4,000-5,000 kg (8,800-11,000 lbs) without ballast. 🛡️ Safety Features Ratings Rollover Protection: ROPS (Roll Over Protection Structure) was often an option or became...