🏷️ Basic Information Identification Make: International Harvester Model: 826 Tractor Generation Production Years: 1969-1971 Codes Engine Codes: D-236 (Diesel), MV-404 (Gasoline/LPG) 👋 Introduction Market Position Segment: Heavy-duty utility tractor. Competitive Analysis Key Competitors: John Deere 4020, Massey Ferguson 1100 series, Ford 5000 series. Key Features Engine Options: Offered with both a robust 6-cylinder diesel (D-236) and a powerful V8 gasoline/LPG (MV-404) engine. Transmission Options: Available with a 10-speed synchronized gear transmission (often referred to as the 10-speed Power Shift) or a 20-speed transmission with Torque Amplifier. Hydraulic System: Features IH's Hydro-lectric hydraulic system, providing robust lift capacity and remote hydraulic control. Manual Value Proposition Target Audience: Do-it-yourself mechanics and experienced professional technicians. 📋 Manual Details Coverage Areas Primary Coverage: Comprehensive service, repair, and maintenance for the International Harvester 826 Tractor. Secondary Coverage: Troubleshooting, diagnostics, and electrical system repairs. Page Count Estimated Page Count: Extensive, likely several hundred pages given the depth of coverage. Manual Type Type: Workshop Service Repair Manual (FSM equivalent) Language Language: English Format File Format: PDF Delivery Method: Instant Download Requirements: Adobe PDF Reader & WinZip Compatibility: All Versions of Windows & Mac 📖 Manual Coverage Systems Covered Engine Mechanical: Detailed overhaul, disassembly, inspection, and reassembly of the D-236 diesel and MV-404 gasoline/LPG engines. Engine Electrical: Ignition system, starting system, charging system, and related components. Emission Control: Information pertaining to emission control systems relevant to the model years. Fuel System: Carburetor (gasoline/LPG), diesel injection system, fuel filters, pumps, and lines. Suspension Steering: Front axle, steering linkage, power steering system. Clutch: Clutch assembly, linkage, and operation. Transmission: Manual transaxle (gearbox), differential, and final drives. Driveshaft Axle: Driveshaft, rear axle assembly, and related components. Brakes: Brake system components, hydraulic lines, and adjustments. Body Interior Exterior: Body panels, fenders, operator station, and trim. Body Electrical: Lighting, instrumentation, wiring harnesses, and accessory electrical systems. Restraint Systems: Seat belts and operator safety features. Procedures Included Maintenance: Routine maintenance, lubrication, fluid changes, filter replacement, tune-ups. Diagnostics: Troubleshooting guides, symptom-based diagnostics, electrical system diagnostics. Repair: Step-by-step repair procedures for all major components and systems. Rebuild: Detailed overhaul instructions for engines, transmissions, hydraulic systems, and other major assemblies. Wiring Schematics: Comprehensive wiring diagrams for electrical systems. Troubleshooting: Specific troubleshooting sections are integrated with wiring diagrams and diagnostic procedures to quickly identify and resolve issues. Technical Depth Depth: Complete, covering everything from basic adjustments to full engine and transmission rebuilds. 📊 Manual Specifications File Format PDF Quality: High quality, allowing for clear zoom and readability of illustrations and text. Print Quality Printability: Fully printable, allowing users to print specific sections or the entire manual. Binding Type Digital Binding: N/A (Digital PDF) Paper Type Digital Paper Type: N/A (Digital PDF) Usability Searchability: Likely searchable PDF text content. Navigation: Numbered table of contents for easy navigation. Illustrations: Detailed illustrations, diagrams, and photos are a key feature, aiding in visual understanding of procedures. ⚙️ Engine Specifications Primary Engine Diesel Engine Model: International Harvester D-236 Diesel Displacement: 3.87 liters (236 cubic inches) Diesel Horsepower: Approximately 77 PTO HP (may vary slightly by specific configuration) Gasoline Engine Model: International Harvester MV-404 Gasoline Displacement: 6.62 liters (404 cubic inches) Gasoline Horsepower: Approximately 74 PTO HP (may vary slightly by specific configuration) Performance Torque Amplifier: Optional feature providing 20 forward speeds, effectively doubling the gear ratios for more precise power delivery. Fuel System Diesel Injection: Bosch inline injection pump or CAV distributor injection pump (depending on build date/variant). Gasoline Carburetion: Single or two-barrel carburetor (e.g., Zenith, Marvel-Schebler). 🔧 Transmission Standard Transmission Type: 10-speed synchronized gear transmission (e.g., 5 forward gears + Reverse, with High/Low range selector for 10 speeds). Optional Transmission Type: 20-speed transmission with Torque Amplifier (TA). Features Power Takeoff Pto: 540/1000 RPM PTO, potentially with independent PTO engagement. 📐 Dimensions Exterior Wheelbase: Approx. 94 inches (2388 mm). Weights Operating Weight: Approx. 7,000 - 8,000 lbs (3175 - 3629 kg), depending on configuration and options. 💡 Technology Features Infotainment Operator Station: Basic operator comfort features, including seat, steering wheel, and instrument cluster. Driver Assistance Power Steering: Standard power steering on most models for easier maneuverability. Connectivity Lighting System: Basic 12V electrical system for lights (headlights, taillights, work lights) and instrumentation. 🔧 Maintenance Service Intervals Engine Oil Change: Every 100-150 hours or annually (typical for the era, consult manual for exact spec). Air Filter Service: Inspect and clean/replace based on operating conditions, typically every 100-250 hours. Fluid Specifications Engine Oil Type Diesel: API CD or similar heavy-duty diesel engine oil, SAE 30 or 15W-40 depending on ambient temperature (e.g., IH Hy-Tran, John Deere Hy-Gard, or equivalent). Engine Oil Type Gasoline: API SE or similar gasoline engine oil, SAE 30 or 10W-30 depending on ambient temperature. Hydraulic Transmission Fluid: IH Hy-Tran or a compatible universal tractor transmission fluid (UTTF). Known Issues Common Wear Items: Clutch wear, TA engagement issues, hydraulic pump wear, electrical connections...