Manual Purpose:
To provide detailed guidance for the repair and maintenance of the David Brown 1390 Tractor, enabling owners and technicians to perform work to factory standards.
Manual Content Highlights:
Step-by-step repair procedures, critical specifications, illustrations/pictures, maintenance schedules, disassembly and assembly instructions, cleaning and reinstallation procedures.
Knowledge Transfer:
Aims to impart factory-trained technician knowledge to the user.
Vehicle Covered:
David Brown 1390 Tractor
Estimated Page Count:
Extensive (Specific page count not provided, but implied to be comprehensive for a full service manual)
Manual Type:
Service Manual / Repair Manual / Workshop Manual
Delivery Method:
Instant Download
Software Requirements:
Adobe PDF Reader, WinZip
Operating System Compatibility:
All Versions of Windows & Mac
Engine Systems:
Engine overhaul, fuel system, lubrication system, cooling system, intake and exhaust systems, starting and charging systems
Drivetrain Systems:
Transmission, clutch, differential, rear axle, PTO (Power Take-Off)
Hydraulic Systems:
Hydraulic pump, control valve, cylinders, external hydraulic connections, three-point linkage
Steering Systems:
Power steering system, steering column, linkages
Braking Systems:
Brake systems (including parking brake), linkages, fluid specifications
Electrical Systems:
Wiring diagrams, lighting, starting motor, alternator, battery, instrument panel, troubleshooting
Chassis And Body:
Frame, front axle, fenders, operator station, weights and ballast
General Maintenance:
Scheduled maintenance, lubrication, fluid checks and changes, filter replacements
Diagnostic Procedures:
Troubleshooting guides, symptom-based diagnostics, diagnostic trouble codes (if applicable to the era)
Repair Procedures:
Step-by-step disassembly, cleaning, inspection, repair, and reassembly of all major components and systems
Adjustment Procedures:
Adjustment of clutch, brakes, valves, linkages, and hydraulic systems
Special Tools:
Identification and usage of specialized tools required for specific repairs
Depth Of Coverage:
Comprehensive (from basic maintenance to complete engine/transmission rebuilds)
Intended User:
Professional technicians and DIY mechanics with basic mechanical and electrical knowledge
Print Quality:
Full Printable
Digital Binding Equivalent:
PDF Navigation (Hyperlinks, bookmarks if present)
Digital Paper Type Equivalent:
Digital document rendering
Engine Model:
Likely a David Brown AD4/40 or similar 4-cylinder diesel engine (specific engine code not provided in product info, but typical for this model range)
Displacement:
Approximately 3.8 - 4.0 Liters (typical for David Brown 4-cylinder diesel engines of this era)
Horsepower Rating:
Estimated 70-80 PTO horsepower (actual figures vary based on specific configuration and testing)
Injection System:
Likely a mechanical injection pump system (e.g., Lucas CAV or similar)
Cooling Type:
Water-cooled
Transmission Type:
Likely a 12-speed constant mesh gearbox (e.g., 8 forward, 4 reverse or similar configuration)
Optional Gearbox Features:
Possible presence of a high-low range splitter or creeper gears depending on specific market configuration.
Clutch Type:
Likely a dual-stage clutch for transmission and PTO engagement.
Overall Length:
Not specified, but typical for a tractor of its class (e.g., 12-14 feet)
Operating Weight:
Not specified, but likely in the 6,000 - 7,500 lbs range depending on configuration.
Engine Oil Change Interval:
Typically 250 hours, but the manual will provide exact intervals.
Hydraulic Oil Change Interval:
Typically 500-1000 hours, manual will confirm.
Engine Oil Type:
API CD or equivalent, SAE 15W-30 or 10W-30 depending on climate. Manual will list exact specifications.
Hydraulic Fluid Type:
Likely a universal tractor transmission oil (UTTO) or hydraulic fluid meeting specific David Brown/Tenneco specifications. Manual will provide exact part numbers/grades.
Coolant Type:
Ethylene glycol based antifreeze with corrosion inhibitors. Manual will specify mixture ratio and type.
Common Wear Items:
Clutch wear, hydraulic pump performance degradation, PTO clutch engagement issues, potential for front axle wear, electrical harness degradation over time.
Diagnostic Focus Areas:
Manual will guide users through diagnosing and addressing common issues like hard starting, power loss, hydraulic system leaks, and transmission engagement problems.
David Brown Legacy:
David Brown was a renowned British tractor manufacturer, known for robust and reliable agricultural machinery, later becoming part of the Tenneco International (Case IH) family.
1390 Context:
The 1390 was a significant model in David Brown's later years, representing a modern and powerful tractor for its time, often used for heavy-duty farm work.
Production Period:
Mid to late 1970s and early 1980s.
