Target Audience:
Farmers, agricultural contractors, and mechanics specializing in vintage and classic tractors.
Value Proposition:
Provides essential technical data and repair procedures to keep the David Brown 885N operational and maintained, saving on costly professional repairs.
Content Advantage:
Offers a digital, easily accessible format compared to potentially outdated or fragile paper manuals.
Engine:
Detailed overhaul and repair procedures for the diesel engine, including fuel system, lubrication, cooling, and starting systems.
Transmission:
Repair and maintenance of the gearbox, clutch, and final drives.
Hydraulics:
Comprehensive coverage of the hydraulic system, including pump, control valves, cylinders, and PTO.
Electrical:
Wiring diagrams, troubleshooting for lighting, starting, and charging systems.
Chassis And Body:
Repair procedures for steering, braking, front axle, and body panels.
Maintenance:
Scheduled maintenance tasks, lubrication, filter changes, and fluid checks.
Troubleshooting:
Diagnostic guides and symptom-based troubleshooting for common issues.
Repair:
Step-by-step instructions for component disassembly, repair, and reassembly.
Overhaul:
Complete engine and transmission overhaul procedures.
Depth:
In-depth technical information suitable for professional mechanics and experienced users, covering detailed specifications, tolerances, and torque values.
Searchability:
Searchable text for quick information retrieval.
Printability:
Printable pages for hands-on use in the workshop.
Image Resolution:
High-resolution images and diagrams for clarity.
Binding:
Digital (N/A for PDF)
Coverage:
Comprehensive manual covering all aspects of repair and maintenance.
Engine Model:
Likely a variant of the David Brown AD4.204 or similar 4-cylinder diesel engine (specific to 885N variant requires further confirmation from detailed manual content).
Displacement:
Approximately 3.3 liters (203.6 cubic inches) for the AD4.204 engine.
Horsepower:
Typically in the range of 55-65 PTO horsepower, depending on exact configuration and testing.
Torque:
Specifications vary, but generally designed for robust torque delivery at lower RPMs.
Injection System:
Likely a rotary or inline injection pump system (e.g., CAV or Lucas/Simms).
Oil Type:
API CD or CE rated diesel engine oil, SAE 30 or 15W-40 recommended depending on climate.
Oil Capacity:
Approximately 7.0-8.0 liters (e.g., 7.5 US Quarts) including filter. Precise capacity will be in manual.
Coolant Type:
Ethylene glycol based antifreeze with corrosion inhibitors.
Coolant Capacity:
Approximately 10-12 liters (e.g., 10.5-12.5 US Quarts). Precise capacity will be in manual.
Gearbox Type:
Constant mesh, sliding gear transmission.
Gear Selection:
Typically a 10-speed or 12-speed gearbox (e.g., 8 forward + 2 reverse, or 12 forward + 4 reverse with splitter). Specific configuration for 'N' variant needs manual confirmation.
Power Take Off:
Standard 540 RPM PTO, potentially with a 1000 RPM option on some later models.
Clutch:
Dry single or dual-stage clutch.
Transmission Oil Type:
API GL-4, SAE 80W/90 gear oil for transmission and final drives. Some hydraulic systems may share this fluid, others may use UTF (Universal Tractor Fluid).
Transmission Oil Capacity:
Refer to manual for specific capacity, typically around 18-20 liters (e.g., 19-21 US Quarts) for transmission and rear axle.
Wheelbase:
Approximately 76-78 inches (1930-1981 mm). Specific to 'N' variant.
Length:
Varies, typically around 130-140 inches (3302-3556 mm) with standard linkage.
Width:
Varies based on rear axle track setting, generally 70-80 inches (1778-2032 mm).
Operating Weight:
Approximately 5000-6000 lbs (2268-2722 kg) without ballast.
Safety Standards:
Designed to meet standards of its production era, focusing on operator protection through structural integrity and functional controls. Modern ROPS/FOPS not standard on original models but often retrofitted.
Braking System:
Mechanical drum brakes or hydraulic disc brakes on rear wheels, often with independent parking brake.
Operator Station:
Open operator station. Manual will detail seat safety, control placement, and pedal design for safe operation.
Features:
As a tractor from its era, infotainment features are non-existent. Focus is on functional controls for farming operations.
Features:
No electronic driver assistance features. Operation relies on mechanical controls and operator skill.
Features:
No digital connectivity features. PTO and hydraulic linkages are the primary means of 'connectivity' to implements.
Engine Oil Change:
Typically every 100-150 operating hours or annually.
Fuel Filter Replacement:
Recommended at every oil change or as needed if experiencing fuel issues.
Air Filter Cleaning/Replacement:
Service dry-type air filter element at regular intervals (e.g., daily or weekly depending on dust conditions). Oil-bath type requires more frequent servicing.
Transmission Oil Change:
Typically every 500-1000 operating hours or every 1-2 years.
Hydraulic Oil Type:
If separate from transmission, likely UTF (Universal Tractor Fluid) or specific hydraulic oil (e.g., ISO VG 32/46). Manual to confirm.
Grease Type:
Lithium-based multi-purpose grease for lubrication points (grease nipples).
Common Problems:
Potential for hydraulic lift issues, wear in the transmission or PTO clutch, and general age-related wear on seals and components. Cooling system maintenance is critical.
Preventative Maintenance:
Regular lubrication, fluid level checks, and filter replacements are key to longevity.
Manufacturer:
David Brown Tractors Ltd., a British manufacturer known for robust and reliable agricultural machinery.
Series:
The 885N is part of the later generation of David Brown tractors, succeeding earlier models and incorporating improvements in power, hydraulics, and comfort. The 'N' designation often implies a specific configuration or market variant.
Production Period:
The David Brown 885 model range was produced roughly from the mid-1960s into the early 1970s. Exact '885N' production dates require specific model identification or manual verification.
Manufacturing Location:
Meltham, West Yorkshire, United Kingdom.