The Case IH 1390 is a robust utility tractor, produced from the mid-1980s to the early 1990s, designed for heavy-duty farm operations. Known for its reliable Perkins diesel engine, typically around 3.9 liters and producing 50-70 horsepower, and a versatile transmission offering 8 forward and 2 reverse speeds, this tractor is built for durability and consistent performance. Its engineering emphasizes practical functionality, making it a dependable workhorse for farm owners and operators. The 1390 is a testament to Case IH's legacy of producing quality agricultural machinery. This factory service repair manual provides comprehensive guidance for the service and repair of the Case IH 1390 tractor. It covers all major systems, including the engine, transmission, hydraulics, electrical components, drivetrain, braking, steering, fuel, and cooling systems, as well as the operator's station and chassis. The manual details routine maintenance, troubleshooting procedures, overhaul instructions, component replacement, and adjustment procedures, offering factory-level repair information. Its extensive coverage ensures that owners, mechanics, and service technicians have the necessary resources to maintain and repair the tractor effectively, ensuring its longevity and optimal performance. 🏷️ Basic Information Identification Make: Case IH Model: 1390 Product Type: Factory Service Repair Manual 👋 Introduction Market Position Segment: Utility Tractor (Heavy Duty). Target User: Farm owners, mechanics, service technicians. Competitive Analysis Value Proposition: Comprehensive, factory-level repair information for effective and cost-efficient maintenance. Key Features Information Access: Easy navigation via table of contents, comprehensive coverage. Accessibility: Downloadable, usable on multiple devices, anytime/anywhere repair capability. 📋 Manual Details Coverage Areas Primary Coverage: Service and repair of Case IH 1390 tractor. Additional Coverage: Troubleshooting, maintenance schedules, wiring diagrams. Page Count Estimated Pages: Extensive (exact count not specified, but implied to be comprehensive). Manual Type Type: Factory Service Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine: Detailed repair and overhaul procedures for the engine. Transmission: Service and repair of the transmission system. Hydraulics: Hydraulic system diagnostics, repair, and component service. Electrical: Wiring diagrams, electrical component testing, and troubleshooting. Drivetrain: Front and rear axle service, PTO systems. Braking System: Service and repair of the braking system. Steering System: Steering mechanism repair and adjustment. Fuel System: Fuel tank, lines, injection system service. Cooling System: Radiator, thermostat, water pump service. Operator Station: Dashboard, controls, seating, safety features. Chassis And Frame: Frame inspection and repair. Procedures Included Routine Maintenance: Oil changes, filter replacements, lubrication points. Troubleshooting: Diagnostic procedures for common and uncommon issues. Overhaul Procedures: Complete engine, transmission, and hydraulic system rebuilds. Component Replacement: Detailed instructions for replacing individual parts and assemblies. Adjustment Procedures: Calibration and adjustment of various systems. Technical Depth Depth: Comprehensive, covering everything from basic maintenance to complete overhauls. Diagnostic Capability: Advanced diagnostics for all major systems. 📊 Manual Specifications File Format Format: PDF Compatibility: Windows and Mac compatible Required Software: Adobe PDF Reader, WinZip Print Quality Quality: High resolution, suitable for printing. Binding Type Type: Digital Download (N/A for printed binding). Paper Type Type: Digital (N/A for printed paper type). ⚙️ Engine Specifications Primary Engine Engine Family: Perkins Diesel (Commonly equipped). Displacement: Typically around 3.9 Liters (4-236 engine variant is common). Fuel System: Indirect injection, rotary injection pump (e.g., Simms, CAV). Performance Horsepower: Approximately 50-70 HP (Varies by specific engine configuration). Torque: Refer to specific engine variant specifications within the manual for exact torque figures. 🔧 Transmission Standard Type: Manual Gearbox with synchronized or unsynchronized options. Speeds: Typically 8 Forward, 2 Reverse (or variations thereof). Optional Features: Optional Hi-Lo splitter for increased gear selection. Features Clutch Type: Dual-stage clutch (one for PTO, one for transmission). 📐 Dimensions Exterior Length: Approx. 3.4 - 3.7 meters (varies with configuration). Width: Approx. 1.7 - 1.9 meters (over rear wheels). Height: Approx. 2.2 - 2.4 meters (to top of exhaust/stack). Weights Operating Weight: Approx. 2,500 - 3,000 kg (depending on configuration). 🛡️ Safety Features Active Features Safety Shutoffs: PTO safety engagement, clutch safety switches. Passive Features Operator Protection: ROPS (Roll-Over Protective Structure) availability, seat belts. 💡 Technology Features Infotainment Features: Basic analog instrumentation (tachometer, temperature, oil pressure, fuel level). Driver Assistance Features: Mechanical PTO engagement, tractor speed control via transmission gears and throttle. 🔧 Maintenance Service Intervals Engine Oil Change: Typically every 250-500 operating hours (refer to manual for exact recommendation). Hydraulic Fluid Change: Typically annually or every 1000 operating hours (refer to manual). Fluid Specifications Engine Oil: API CG-4 or CH-4 rated diesel engine oil, SAE 15W-40 commonly specified. Hydraulic Fluid: UTTO (Universal Tractor Transmission Oil) or specific Case IH hydraulic fluid (e.g., TCH Fluid). Transmission Oil: May use the same fluid as the hydraulic system depending on design, or a specific gear oil. Coolant: Ethylene glycol-based antifreeze, typically a 50/50 mix with distilled water. Known Issues Common Wear Items: Clutch wear, hydraulic pump and cylinder seals, injector pump timing, starter motor issues. Electrical System: Wiring harness degradation, alternator/generator issues. 📚 Vehicle...