Segment:
Heavy-duty utility tractor, suitable for agricultural, industrial, and construction applications.
Comparison:
Competed with models from manufacturers like Massey Ferguson, Fordson, and International Harvester during its production era.
Durability:
Known for robust construction and reliability, typical of David Brown tractors of the era.
Versatility:
Designed for a wide range of tasks with the integration of various implements via its 3-point hitch and PTO.
Engine:
Detailed overhaul, repair, and troubleshooting of the David Brown diesel engine powering the 885N.
Transmission:
Coverage of the gearbox, clutch, PTO, and associated components.
Hydraulics:
Information on the hydraulic system, lift arms, external hydraulics, and pumps.
Electrical System:
Wiring diagrams, starter, alternator, lighting, and instrument cluster diagnostics.
Steering:
Service and repair of the steering mechanism, including power steering if equipped.
Brakes:
Brake system overhaul, adjustment, and troubleshooting.
Front Axle And Steering:
Maintenance and repair of the front axle, steering pivots, and linkage.
Rear Axle And Differential:
Rebuild and service procedures for the rear axle and differential assembly.
Cooling System:
Radiator, fan, thermostat, and water pump service.
Fuel System:
Fuel tank, lines, filters, and injection pump service.
Exhaust System:
Maintenance and repair of the exhaust manifold and muffler.
Bodywork And Fenders:
Information on sheet metal, fenders, and operator station.
Scheduled Maintenance:
Detailed maintenance schedules and procedures for routine servicing.
Troubleshooting Diagnostics:
Systematic diagnostic charts and troubleshooting guides for common and uncommon issues.
Engine Overhaul:
Complete step-by-step instructions for engine disassembly, inspection, repair, and reassembly.
Transmission Repair:
Procedures for gearbox disassembly, bearing replacement, gear inspection, and reassembly.
Hydraulic System Repair:
Service for hydraulic pumps, control valves, cylinders, and hydraulic linkages.
Electrical Diagnostics:
Guides for diagnosing and repairing electrical faults, including wiring diagrams interpretation.
Component Replacement:
Instructions for replacing wear items and major components such as alternators, starters, and fuel pumps.
Calibration And Adjustment:
Procedures for adjusting valve lash, fuel injection timing, and hydraulic system pressures.
Depth Level:
Comprehensive overhaul and detailed repair procedures, suitable for experienced technicians.
Diagrams Illustrations:
Likely includes detailed exploded diagrams and step-by-step illustrations for clarity.
Engine Type:
David Brown 3-cylinder or 4-cylinder Diesel engine (specific variant may apply to 885N).
Displacement:
Likely in the range of 2.5 to 3.5 liters, depending on the specific engine variant (e.g., AD4.203).
Bore And Stroke:
Specific figures would be detailed in the manual, but typical for the era's diesel engines.
Horsepower:
Estimated around 60-70 PTO horsepower (specific rating will be in the manual).
Torque:
Torque figures would be available in the manual, crucial for heavy draft work.
Injection System:
Mechanical diesel injection, likely rotary or inline pump, with specific model details in the manual.
Capacity:
Coolant capacity would be specified in the manual for proper servicing.
Type:
David Brown's own gearbox, likely a 12-speed 'speed-shift' or similar synchronized transmission with multiple ranges.
Powershift:
Some David Brown models featured variations or options; specific to 885N needs verification from manual.
Pto:
Standard 540 RPM Power Take-Off (PTO), with potential for 1000 RPM PTO depending on configuration.
Gear Ratios:
Detailed gear ratios for all forward and reverse gears will be in the manual.
Transmission Oil Type:
Likely a multi-purpose tractor oil (e.g., API GL-4 80W/90 or equivalent, as specified by David Brown).
Engine Oil Change:
Typically every 100-200 operating hours, or annually, with specific recommendation in the manual.
Air Filter Service:
Frequent checks and cleaning depending on operating conditions, with replacement intervals specified.
Fuel Filter Replacement:
Regular replacement, often coinciding with oil changes or at specific hour intervals.
Engine Oil Specification:
Likely SAE 10W/30 or 10W/40 diesel engine oil meeting API CD or similar specifications.
Coolant Specification:
Ethylene Glycol based antifreeze, mixed with water in appropriate ratios for desired frost protection.
Hydraulic Fluid Specification:
Universal Tractor Transmission Oil (UTTO) or dedicated hydraulic oil, as per David Brown's recommendation.
Transmission Wear:
Common wear in older transmissions, particularly on gear teeth and bearings, requiring manual guidance for repair.
Hydraulic Leaks:
Seals and O-rings in the hydraulic system can degrade over time, leading to leaks.
Engine Component Wear:
Valve seats, piston rings, and bearings are subject to wear; the manual provides wear limits for diagnosis.
Electrical Connection Corrosion:
Older electrical connectors can corrode, causing intermittent issues.
Origin:
David Brown Tractors Ltd. was a British agricultural machinery manufacturer, known for its robust and reliable tractors.
Series:
The 885N belongs to the later 'N' series of David Brown tractors, succeeding earlier models with updated features and engine options.
Production Years:
The 885N was likely produced in the late 1960s and early 1970s, a period of significant development for the company.
Manufacturing Location:
United Kingdom (Meltham, Yorkshire).
