Market Segment:
        
        
            Mid-size utility and row-crop tractor, popular in its era for versatility and durability.
        
     
    
    
        
            Key Competitors:
        
        
            Competed with models from manufacturers like Massey Ferguson, Ford, John Deere, and International Harvester during its production run.
        
     
    
    
        
            Traction Ability:
        
        
            Known for its robust drivetrain and excellent traction, especially in demanding agricultural conditions.
        
     
    
        
            Hydraulic Capacity:
        
        
            Features a capable hydraulic system suitable for operating a wide range of implements.
        
     
    
        
            Operator Comfort:
        
        
            Designed with operator comfort and control in mind for extended working periods.
        
     
    
    
        
            Factory Authenticity:
        
        
            These are genuine factory manuals, offering accurate and complete technical information, unlike aftermarket reproductions.
        
     
 
    
    
    
        
            Engine Service:
        
        
            Detailed engine disassembly, assembly, troubleshooting, and overhaul procedures for the Case David Brown 1490 tractor's diesel engine.
        
     
    
        
            Transmission Service:
        
        
            Comprehensive coverage of the transmission system, including gearbox, clutch, differential, and PTO, with repair and adjustment instructions.
        
     
    
        
            Hydraulic System:
        
        
            In-depth information on the tractor's hydraulic system, including pump, valves, cylinders, and remote controls, with diagnostic and repair procedures.
        
     
    
        
            Electrical System:
        
        
            Complete wiring diagrams, component testing, troubleshooting, and repair instructions for the tractor's electrical system, including lighting and starting.
        
     
    
        
            Braking System:
        
        
            Detailed procedures for the maintenance, adjustment, and repair of the tractor's braking system.
        
     
    
        
            Steering System:
        
        
            Information on the steering mechanism, including maintenance and repair of steering components.
        
     
    
        
            Front Axle And Steering:
        
        
            Coverage of front axle assembly, maintenance, and steering linkage adjustments.
        
     
    
        
            Rear Axle And Final Drive:
        
        
            Details on rear axle components, differential, and final drive units, including maintenance and repair.
        
     
    
        
            Power Take Off Pto:
        
        
            Specific instructions for the operation, maintenance, and repair of the PTO system.
        
     
    
        
            Cooling System:
        
        
            Procedures for radiator, thermostat, and coolant system maintenance and repair.
        
     
    
        
            Fuel System:
        
        
            Information on fuel injection system, filters, and tank maintenance.
        
     
    
        
            Exhaust System:
        
        
            Maintenance and repair guidelines for the exhaust system components.
        
     
    
        
            Bodywork And Chassis:
        
        
            Guidance on chassis maintenance, body panel repair, and component installation.
        
     
    
        
            Operator Controls And Instruments:
        
        
            Explanation of all operator controls, dashboard instruments, and their functions.
        
     
    
    
        
            Routine Maintenance:
        
        
            Detailed instructions for regular maintenance tasks such as oil changes, filter replacements, lubrication, and inspections.
        
     
    
        
            Troubleshooting Guide:
        
        
            Systematic troubleshooting charts and diagnostic procedures for identifying and resolving common issues.
        
     
    
        
            Component Disassembly And Assembly:
        
        
            Step-by-step instructions for taking apart and reassembling major tractor components.
        
     
    
        
            Adjustment Procedures:
        
        
            Specific instructions for adjusting various systems, including clutch, brakes, and hydraulic controls.
        
     
    
        
            Torque Specifications:
        
        
            Essential torque values for critical fasteners throughout the tractor.
        
     
    
        
            Special Tool Requirements:
        
        
            Identification and usage instructions for specialized tools required for certain repair procedures.
        
     
    
        
            Overhaul Instructions:
        
        
            Comprehensive guides for complete engine and transmission overhauls.
        
     
    
        
            Parts Identification:
        
        
            Detailed illustrations and part numbers for all replaceable components.
        
     
    
    
        
            Depth Of Coverage:
        
        
            Comprehensive, covering everything from basic operation and maintenance to complete engine and transmission rebuilds.
        
     
 
    
    
    
        
            Engine Model:
        
        
            Case 4-390 (likely, or similar direct descendant of David Brown engines)
        
     
    
        
            Engine Type:
        
        
            4-cylinder, naturally aspirated diesel
        
     
    
        
            Displacement:
        
        
            Approximately 3.9 Liters (236 cubic inches)
        
     
    
    
        
            Rated Horsepower:
        
        
            Around 90-100 PTO horsepower (varies by specific configuration and year)
        
     
    
        
            Bore X Stroke:
        
        
            Refer to specific engine manual for exact dimensions.
        
     
    
    
        
            Fuel Injection Type:
        
        
            Direct injection, likely rotary or inline pump (e.g., Simms, CAV, or Bosch).
        
     
    
    
    
        
            Oil Capacity:
        
        
            Refer to Operator's Manual for exact capacity, typically around 10-12 quarts.
        
     
    
    
        
            Cooling Type:
        
        
            Water-cooled
        
     
 
    
    
    
        
            Engine Oil Change:
        
        
            Typically every 250-500 operating hours. Refer to the Operator's Manual for exact intervals.
        
     
    
        
            Fuel Filter Replacement:
        
        
            Recommended at every engine oil change or as needed based on fuel quality.
        
     
    
        
            Air Filter Cleaning Replacement:
        
        
            Regular inspection and cleaning/replacement based on operating conditions (e.g., dusty environments).
        
     
    
    
        
            Engine Oil Spec:
        
        
            API CE or CD classification, SAE 15W-40 is common. Refer to manual for precise specification.
        
     
    
        
            Hydraulic Fluid Spec:
        
        
            CASE IH HYTRAN, or equivalent UTF (Universal Tractor Transmission Fluid) meeting specific viscosity and performance standards.
        
     
    
        
            Coolant Type:
        
        
            Ethylene glycol-based antifreeze with appropriate corrosion inhibitors. 50/50 mix with distilled water is typical.
        
     
    
    
        
            Hydraulic Leaks:
        
        
            Common issues can include leaks from hydraulic hoses, seals, and cylinder glands due to age and wear.
        
     
    
        
            Transmission Wear:
        
        
            Wear in the gearbox or clutch components, particularly on high-hour machines, can lead to shifting difficulties or slippage.
        
     
    
        
            Electrical Issues:
        
        
            Aging wiring harnesses, corroded connections, and failing switches can lead to intermittent electrical problems.
        
     
    
        
            Engine Starting:
        
        
            Glow plug issues or worn starter components can affect cold-weather starting.