🏷️ Basic Information Identification Make: International Harvester (IH) Model: 1256 Tractor Product Name: IH International Harvester 1256 Tractor Service Repair Manual PDF 👋 Introduction Market Position Market Position: The IH 1256 was a cornerstone of the International Harvester tractor lineup, positioned as a powerful and versatile utility tractor for medium to large-scale farming operations. It competed directly with similar models from John Deere, Case IH, and Ford. Competitive Analysis Competitive Analysis: The 1256 offered a strong combination of horsepower, diesel engine reliability, and optional features like the Power Shift transmission, making it a favored choice for farmers seeking a robust workhorse. Its durability and parts availability contributed to its long-standing popularity. Key Features Key Features: Choice of 2-wheel or 4-wheel drive, optional hydrostatic Power Shift transmission, robust diesel engine, high hydraulic flow capacity, comfortable operator station (for its era), and a strong power take-off (PTO) system. 📋 Manual Details Coverage Areas Coverage Areas: Engine, Fuel System, Cooling System, Lubrication System, Electrical System, Transmission (Gear Drive, Power Shift), Clutch, PTO, Hydraulics, Steering, Brakes, Chassis, Body, Troubleshooting, Specifications, Maintenance Schedules Page Count Page Count: Detailed (typically 500+ pages, actual number varies) Manual Type Manual Type: Service Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Systems Covered: Engine Overhaul, Ignition System, Starting System, Charging System, Fuel Injection System, Diesel Fuel System, Lubrication System, Cooling System, Air Intake and Exhaust, Power Take-Off (PTO) System, Hydraulic Lift System (3-Point Hitch, Remote Hydraulics), Power Steering System, Brake System (Wet Disk Brakes), Clutch Assembly, Transmission (Syncromesh Gear Drive, Hydro-Drive Power Shift), Differential and Final Drives, Front Axle, Rear Axle, Electrical Wiring Diagrams, Operator Controls, Operator Safety Features, Body and Sheet Metal Procedures Included Procedures Included: Routine Maintenance, Engine Tune-up, Valve Adjustment, Piston and Ring Replacement, Cylinder Head Overhaul, Fuel Injector Testing and Replacement, Radiator and Cooling System Service, Oil Pump and Filter Service, Clutch Adjustment and Replacement, Transmission Disassembly and Reassembly, Hydraulic Pump and Valve Service, PTO Clutch Adjustment, Brake System Overhaul, Steering System Repair, Electrical System Troubleshooting and Repair, Component Torque Specifications, Diagnostic Procedures, Reassembly Instructions, Parts Removal and Installation, Troubleshooting Charts and Fault Finding Guides Technical Depth Technical Depth: Comprehensive, detailed diagnostics, full rebuild procedures, component-level repair, schematic diagrams, torque specifications, fluid capacities, and troubleshooting guides for both mechanical and electrical systems. 📊 Manual Specifications File Format File Format: PDF (Portable Document Format) Print Quality Print Quality: High-resolution scans, often including searchable text for easy navigation and printing of individual pages. Binding Type Binding Type: Digital (PDF), no physical binding. Paper Type Paper Type: Not applicable (digital format). ⚙️ Engine Specifications Primary Engine Primary Engine: International Harvester D-360 or D-354 (depending on specific build and market). Engine Details Engine Displacement: 360 cubic inches (5.9 Liters) for the D-360, or 354 cubic inches (5.8 Liters) for the D-354. Engine Type: Naturally Aspirated, 4-stroke, Diesel Performance Rated Horsepower: Approximately 105 PTO horsepower (may vary slightly by configuration and engine variant). Peak Torque: Data varies by specific engine variant and load conditions, but typically in the range of 250-280 lb-ft. Fuel System Fuel System: Direct Injection, Rotary or Inline Fuel Injection Pump (e.g., CAV or Roosa-Master). Fuel Type: Diesel Fuel Lubrication Oil Capacity: Approximately 12 quarts (11.4 Liters) with filter change. Recommended Oil Viscosity: SAE 30W or 15W-40 (API CD or higher classification) depending on ambient temperature, consult manual for specifics. 🔧 Transmission Standard Standard Transmission: 16-Speed Synchronized Gear Drive Transmission Optional Optional Transmission: 3-Speed Hydro-Drive Power Shift (for on-the-go shifting) Features Transmission Features: Heavy-duty gearsets, robust casing, and engagement mechanisms designed for high torque loads. Power Shift option enhances operator productivity. Fluid Specifications Transmission Fluid Type: IH Hy-Trans Fluid or equivalent universal tractor hydraulic fluid (UTHF). Consult manual for precise specifications and change intervals. Fluid Capacity Transmission Fluid Capacity: Varies significantly with configuration (e.g., with or without 3-point hitch, PTO engagement). Typically around 12-15 gallons for the main transmission/hydraulic reservoir. 📐 Dimensions Exterior Wheelbase: Approximately 93 inches (236 cm) Length: Approximately 150 inches (381 cm) without front weights Width: Varies with tire size, typically 70-80 inches (178-203 cm) at rear axle. Height: Approximately 65 inches (165 cm) to top of steering wheel housing. Weights Operating Weight: Approximately 9,000 - 11,000 lbs (4,082 - 4,990 kg) depending on configuration (2WD/4WD, loader, etc.). Drawbar Horsepower: Typically around 85-95 HP, dependent on tractor condition and setup. 🛡️ Safety Features Ratings Safety Ratings: No formal modern crash test ratings apply to this era of agricultural machinery. Safety relies on operator skill and adherence to manufacturer guidelines. Active Features Active Features: Differential Lock, Hand Throttle, Park Lock (in transmission), reliable braking system. Passive Features Passive Features: Operator platform, fenders, operator presence lever (engine kill switch when unseated), slow-moving vehicle (SMV) emblem mounting points. Operator Safety Operator Safety: Manual emphasizes safe operation, proper use of controls, maintenance, and...