🏷️ Basic Information Identification Make: International Harvester Model: 1256 Vehicle Type: Tractor Codes Product Code: IH-1256-SRM 👋 Introduction Market Position Historical Significance: The IH 1256 was a significant model in International Harvester's tractor lineup, representing advancements in power and features for its era. Competitive Analysis Competitors: Competed with models from John Deere (e.g., 4020), Case (e.g., 930/970), and Ford. Key Features Engine Options: Offered with both International Harvester's own diesel engines and a common option was the highly regarded D-354 or DT-360 diesel. Transmission Options: Typically featured a 16-speed Power Shift transmission (Powersync) or a 10-speed manual transmission. Hydraulic System Capabilities: Equipped with IH's robust hydraulic system, capable of powering demanding implements. 📋 Manual Details Coverage Areas Language: English Format: Digital (likely PDF) Page Count Estimated Page Count: 500+ Manual Type Manual Type: Service Repair Workshop Manual 📖 Manual Coverage Systems Covered Engine Overhaul: Complete engine disassembly, inspection, repair, and reassembly procedures. Fuel System: Fuel injection pump (Bosch or CAV likely), injectors, fuel lines, filters, and fuel tank service. Cooling System: Radiator, water pump, thermostat, hoses, and fan assembly service. Lubrication System: Oil pump, oil filter, lubrication passages, and oil pressure testing. Transmission Service: Disassembly, inspection, and repair of the powershift transmission (if equipped), clutch pack, and gear trains. Hydraulic System: Tractor Power Take-Off (PTO), 3-point hitch, remote hydraulic cylinders, hydraulic pump, control valves, and fluid reservoir service. Electrical System: Starter motor, alternator, battery, lighting circuits, ignition system (diesel models typically have glow plugs), and control panel diagnostics. Braking System: Brake pedal assembly, brake discs/drums, brake hydraulics, and parking brake service. Steering System: Power steering pump, steering cylinder, tie rods, and steering linkages. Front Axle: Front wheel bearings, kingpins, and drive components. Rear Axle And Differential: Rear axle housing, differential gears, final drives, and planetary gears. Drawbar And Hitches: Drawbar mounting, PTO shaft, and auxiliary hitch components. Operator Station: Seat assembly, steering column, control levers, and dashboard instrumentation. Procedures Included Routine Maintenance: Oil changes, filter replacements, lubrication points, and general inspection checklists. Troubleshooting Guides: Diagnostic procedures for common performance issues, symptoms, and their causes. Major Component Rebuilds: Detailed instructions for overhauling engines, transmissions, hydraulic pumps, and final drives. Disassembly And Reassembly: Step-by-step guides for removing and reinstalling all major components and sub-assemblies. Adjustment Procedures: Specifications and methods for adjusting clutch engagement, brake linkages, PTO clutch, and hydraulic controls. Torque Specifications: Comprehensive list of torque values for critical fasteners across all systems. Special Tool Requirements: Identification and usage of specialized tools required for specific repair procedures. Technical Depth Diagnostic Capabilities: Advanced diagnostic information for identifying and rectifying complex mechanical and hydraulic issues. Rebuild Instructions: Detailed, factory-level instructions for complete component rebuilds, suitable for professional mechanics. Schematics And Diagrams: Inclusion of detailed hydraulic schematics, electrical wiring diagrams, and exploded views for component identification and assembly. 📊 Manual Specifications File Format File Type: Likely PDF Searchable Text: Yes (assuming digitally produced or scanned with OCR) Print Quality Image Resolution: High (for clear diagrams and text) Binding Type Binding: N/A (Digital Format) Paper Type Paper Quality: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Manufacturer: International Harvester Engine Model Typical: D-354 (Naturally Aspirated) or DT-360 (Turbocharged) Engine Displacement Diesel: 354 cu. in. (5.8 L) or 360 cu. in. (5.9 L) Cylinders Diesel: 6 Fuel Type: Diesel Performance Horsepower Rated Drawbar Diesel Na: Approx. 85 HP Horsepower Rated Drawbar Diesel Turbo: Approx. 100 HP Fuel System Fuel Injection System: Inline injection pump (e.g., Bosch or CAV) 🔧 Transmission Standard Standard Transmission Type: 16-speed Power Shift (Powersync) Optional Optional Transmission Type: 10-speed manual (less common for 1256, but possible variants) Features Powershift Gear Selection: Selectable by lever without clutch pedal engagement. 📐 Dimensions Exterior Wheelbase Approx: 92 inches (2337 mm) Weights Operating Weight Approx: 8,500 - 9,500 lbs (3855 - 4309 kg) 🛡️ Safety Features Ratings Rollover Protection Standard: ROPS (Roll-Over Protective Structure) was often an option or integrated later in production, depending on regulations and market. Active Features Parking Brake: Mechanical parking brake integrated with main brake system or independent lever. Passive Features Seatbelt: Available with seatbelts if ROPS equipped. 💡 Technology Features Infotainment Infotainment System: None (basic gauges and indicators). Driver Assistance Driver Assistance Features: None. Connectivity Connectivity Options: None. 🔧 Maintenance Service Intervals Engine Oil Change Interval: Typically 100-200 hours, depending on operating conditions and oil type used. Fuel Filter Replacement: Recommended every 200-300 hours or as needed if fuel quality is poor. Hydraulic Oil Change Interval: Typically 600-1200 hours, with filter changes more frequent. Fluid Specifications Engine Oil Type: API CD or higher rated diesel engine oil, SAE 30 or 15W-40 depending on climate. Hydraulic Fluid Type: IH Hytran fluid (or equivalent universal tractor hydraulic fluid meeting IH specification). Transmission Oil Type: Depends on Powershift or manual; Powershift typically used dedicated IH Hytran fluid or specific Powershift oil. Coolant Type: Ethylene...