Target Audience:
        
        
            Owners, operators, and service technicians of David Brown 1390 tractors, from DIY enthusiasts to professional mechanics.
        
     
    
    
        
            Value Proposition:
        
        
            Inexpensive and essential resource for maintaining optimal performance and longevity of the David Brown 1390 tractor.
        
     
    
    
        
            Manual Advantage:
        
        
            Provides detailed, step-by-step instructions and diagrams, crucial for accurate repairs and diagnostics.
        
     
    
        
            Information Source:
        
        
            Considered the primary source for repair and service information, often referred to as a 'factory service manual'.
        
     
 
    
    
    
        
            Primary Coverage:
        
        
            Complete service and repair information for the David Brown 1390 tractor.
        
     
    
    
        
            Estimated Page Count:
        
        
            Extensive (specific number not provided, but described as 'complete' and 'covers every detail')
        
     
    
    
        
            Manual Type:
        
        
            Workshop Service Repair Manual
        
     
    
    
    
    
    
        
            Delivery Method:
        
        
            Instant Download
        
     
    
    
        
            Software Requirements:
        
        
            Adobe PDF Reader, WinZip
        
     
    
    
        
            Operating Systems:
        
        
            All Versions of Windows & Mac
        
     
 
    
    
    
        
            Engine Mechanical:
        
        
            Detailed coverage of engine components, disassembly, assembly, and overhaul.
        
     
    
        
            Engine Electrical:
        
        
            Wiring schematics, troubleshooting, and repair of the engine's electrical systems.
        
     
    
        
            Emission Control:
        
        
            Information on emission control systems and their maintenance.
        
     
    
        
            Fuel System:
        
        
            Comprehensive coverage of the fuel system, including pumps, injectors, and filters.
        
     
    
        
            Suspension System:
        
        
            Details on the tractor's suspension components and maintenance procedures.
        
     
    
        
            Clutch System:
        
        
            In-depth information on clutch operation, adjustment, and repair.
        
     
    
        
            Manual Transaxle:
        
        
            Complete service and repair procedures for the manual transaxle system.
        
     
    
        
            Automatic Transaxle:
        
        
            While unlikely for this era of tractor, if equipped, coverage for automatic transaxle systems.
        
     
    
        
            Driveshaft Axle:
        
        
            Service and repair for the driveshaft and axle assemblies.
        
     
    
        
            Steering System:
        
        
            Detailed instructions for steering system maintenance and repair.
        
     
    
        
            Brake System:
        
        
            Thorough coverage of brake system components, operation, and repair.
        
     
    
        
            Body Interior Exterior:
        
        
            Information on body panels, trim, and interior components.
        
     
    
        
            Body Electrical:
        
        
            Wiring diagrams and repair for the tractor's body electrical systems (lights, etc.).
        
     
    
        
            Restraint System:
        
        
            Information on operator restraint systems (e.g., seat belts, if applicable).
        
     
    
    
        
            Maintenance:
        
        
            Routine maintenance procedures, lubrication, and fluid changes.
        
     
    
        
            Troubleshooting:
        
        
            Diagnostic procedures and common problem solutions.
        
     
    
        
            Repair Overhaul:
        
        
            Step-by-step instructions for component removal, disassembly, repair, and reassembly.
        
     
    
        
            Diagnostics:
        
        
            Detailed diagnostic trees and fault finding for various systems.
        
     
    
    
        
            Depth Of Coverage:
        
        
            Comprehensive, suitable for both novice and experienced mechanics, covering from basic adjustments to complete rebuilds.
        
     
    
        
            Illustrations:
        
        
            Detailed illustrations, diagrams, and photos to guide repair procedures.
        
     
    
        
            Wiring Schematics:
        
        
            Included for electrical system diagnostics and repair.
        
     
    
        
            Specifications:
        
        
            Detailed technical specifications, torque values, clearances, and tolerances.
        
     
 
    
    
    
        
            File Format Details:
        
        
            PDF, optimized for digital viewing and printing.
        
     
    
    
        
            Print Capability:
        
        
            Fully printable pages.
        
     
    
        
            Print Recommendation:
        
        
            Print specific pages as needed for workshop use.
        
     
    
    
        
            Binding Type:
        
        
            N/A (Digital PDF)
        
     
    
    
        
            Paper Type:
        
        
            N/A (Digital PDF)
        
     
    
    
        
            Searchability:
        
        
            Likely searchable text within the PDF, enhancing efficiency.
        
     
    
        
            Navigation:
        
        
            Numbered table of contents for quick information retrieval.
        
     
    
        
            Zoom Functionality:
        
        
            Zoom IN/OUT capability for detailed examination of diagrams and illustrations.
        
     
 
    
    
    
    
        
            Engine Family:
        
        
            Typically Perkins or David Brown manufactured engines for this series.
        
     
    
    
        
            Horsepower Range:
        
        
            Approximately 70-80 PTO horsepower (exact figures vary by specific engine variant).
        
     
    
        
            Torque Characteristics:
        
        
            Designed for robust torque delivery crucial for agricultural applications.
        
     
    
    
        
            Injection System:
        
        
            Typically direct injection, often with rotary or inline fuel injection pumps.
        
     
    
    
    
        
            Cooling Type:
        
        
            Liquid-cooled
        
     
 
    
    
    
        
            Transmission Type:
        
        
            Manual Transmission (likely with multi-speed options like 8-speed, 12-speed, or synchromesh variants).
        
     
    
    
        
            Optional Transmission:
        
        
            Possibly a creeper gear or specialized transmission options depending on market and configuration.
        
     
    
    
        
            Gear Selection:
        
        
            Likely a combination of main gear lever and range selector for multiple forward and reverse gears.
        
     
    
        
            Power Takeoff Pto:
        
        
            Standard PTO operation and maintenance covered.
        
     
 
    
    
    
        
            Engine Oil Change:
        
        
            Typically every 250-500 operating hours, as detailed in the manual. Requires specific diesel engine oil.
        
     
    
        
            Transmission Hydraulic Fluid:
        
        
            Regular fluid and filter changes are critical for transmission and hydraulic system longevity; specific intervals and fluid types detailed in the manual.
        
     
    
    
        
            Engine Oil Type:
        
        
            API CD or CE rated diesel engine oil, viscosity typically SAE 15W-40 or 10W-30 depending on climate. (Exact specification in manual).
        
     
    
        
            Hydraulic Transmission Fluid:
        
        
            David Brown UTTO (Universal Tractor Transmission Oil) or equivalent specified fluid. Capacity and specific grade in manual.
        
     
    
        
            Coolant Type:
        
        
            Ethylene glycol-based antifreeze/coolant mixture for freeze and corrosion protection. Ratio and type in manual.
        
     
    
    
        
            Common Wear Points:
        
        
            Potential wear in clutch, brake components, and hydraulic systems; front axle kingpins and bushes are common wear items.
        
     
    
        
            Electrical Issues:
        
        
            Older wiring harnesses can degrade, leading to intermittent electrical faults; manual's wiring diagrams are essential.
        
     
 
    
    
    
        
            David Brown Legacy:
        
        
            David Brown was a renowned British tractor manufacturer known for robust and reliable machinery, later becoming part of the Tenneco (Case IH) conglomerate.
        
     
    
    
        
            1300 Series:
        
        
            The 1390 is part of the David Brown 1300 series, a popular line of medium-horsepower tractors developed in the late 1970s and early 1980s, succeeding earlier models.
        
     
    
    
        
            Production Period:
        
        
            Primarily produced in the early to mid-1980s.