Positioning:
A vital resource for owners and mechanics of the David Brown 1290 Tractor, aiming to provide factory-level repair and maintenance knowledge.
Features:
Step-by-step procedures, critical specifications, illustrations/pictures, maintenance schedules, troubleshooting guides.
Illustrations:
Includes detailed diagrams and photographs to aid in understanding repair procedures.
Value:
Enables informed decision-making for maintenance and repairs, empowering users with factory-trained technician knowledge.
Competitors:
Fordson Major, Massey Ferguson 165, International Harvester 674, Leyland 384.
Primary Coverage:
Repair and Service
Secondary Coverage:
Maintenance, Troubleshooting, Disassembly, Assembly, Reinstallation
Estimated Pages:
Refer to product listing for exact count, but typically comprehensive factory manuals are several hundred pages.
Type:
Service Manual / Repair Manual / Workshop Manual
Engine Systems:
Engine overhaul, fuel system, lubrication system, cooling system, exhaust system, starting and charging systems.
Drivetrain Systems:
Clutch, gearbox (transmission), final drives, differential, PTO (Power Take-Off) system.
Hydraulics Systems:
Hydraulic pump, control valves, lift arms, cylinder operation, hydraulic fluid specifications.
Steering Braking Systems:
Steering mechanism, front axle, brake system components, brake adjustments, hydraulic brake circuits.
Electrical Systems:
Wiring diagrams, lighting system, battery, starter motor, alternator, instrument panel, troubleshooting electrical faults.
Chassis And Body:
Frame, front axle assembly, rear axle housing, fenders, operator's station.
Frontend Equipment:
Front axle, steering components, linkage, and any associated loaders or front attachments requiring service.
Maintenance:
Routine checks, lubrication points, filter replacement, fluid level checks, scheduled servicing.
Repair:
Engine rebuild, transmission repair, hydraulic system repair, brake repair, steering system repair.
Disassembly Assembly:
Detailed step-by-step procedures for component removal, rebuilding, and reinstallation.
Troubleshooting:
Diagnostic procedures for common and uncommon problems, symptom analysis, fault finding.
Calibration:
Calibration of fuel injection pump, hydraulic control systems, and PTO engagement may be covered.
Depth:
Comprehensive, covering everything from basic maintenance to full engine and transmission overhauls.
Target Audience:
Professional Technicians and Experienced DIY Mechanics
Diagnostic Tools:
Procedures and specifications for using common diagnostic tools such as pressure gauges, timing lights, and multimeters are included.
Engine Model:
David Brown Diesel Engine (Specific model dependent on exact 1290 variant, often a version of the AD4.248 or similar Perkins-derived unit).
Engine Type:
Diesel, typically naturally aspirated, 4-cylinder.
Horsepower Range:
Approximately 60-70 HP (Net) depending on specific engine variant and PTO rating.
Torque Specifications:
Refer to manual for specific torque values for engine components.
Injection System:
Typically rotary or inline injection pump (e.g., Simms, CAV).
Oil Capacity:
Refer to manual for exact capacity, typically around 7-8 liters.
Recommended Oil Grade:
API CD or CE rated diesel engine oil, SAE 15W-40 or 20W-50 depending on ambient temperature.
Coolant Type:
Ethylene glycol based antifreeze/coolant mixture. Refer to manual for specific mixture ratio and capacity.
Transmission Type:
Manual Gearbox with High/Low Range
Number Of Gears:
Typically 8 forward speeds and 2 reverse speeds (4 forward gears in high and low range).
Optional Features:
Some models may have offered a Selectamatic or Hydralock system for advanced hydraulic control and PTO engagement.
Pto Engagement:
Often a dual-clutch or independent PTO system.
Differential Lock:
Typically features a foot-pedal operated differential lock for enhanced traction.
Transmission Oil Type:
API GL-4 or GL-5 rated gear oil, SAE 80W-90 or 85W-140 depending on ambient temperature. Some hydraulic systems may use Universal Tractor Transmission Oil (UTTO).
Engine Oil Change:
Typically every 250 hours or annually, whichever comes first.
Fuel Filter Replacement:
Refer to manual for specific intervals, often tied to hours or as needed when experiencing issues.
Air Filter Maintenance:
Regular checks and cleaning, replacement as per manual recommendations based on operating conditions.
Hydraulic Fluid Type:
UTTO (Universal Tractor Transmission Oil) or specific hydraulic fluid as recommended by David Brown. Capacity typically around 25-30 liters.
Common Wear Points:
Clutch wear, hydraulic pump wear, PTO clutch engagement issues, potential for leaks in seals and hoses.
Electrical Reliability:
Older wiring harnesses can be prone to degradation and short circuits; requires careful inspection and maintenance.
Carburetor Adjustment:
N/A (Diesel engine)
Engine Timing:
Critical for optimal performance and fuel efficiency; manual provides specific timing marks and procedures.
