Tractor Segment:
        
        
            Medium-duty utility tractor
        
     
    
    
        
            Peer Competitors:
        
        
            Massey Ferguson 100 series, Fordson D series, International Harvester B series, Leyland 253/485
        
     
    
    
        
            David Brown Strengths:
        
        
            Robust construction, reliable engineering, good power-to-weight ratio
        
     
 
    
    
    
        
            Engine System:
        
        
            Complete overhaul, troubleshooting, fuel system (injection pump, injectors), lubrication, cooling system
        
     
    
        
            Transmission System:
        
        
            Gearbox, clutch, PTO (Power Take-Off), differential, hydraulic lift system, final drive
        
     
    
        
            Hydraulic System:
        
        
            Hydraulic pump, control valve, cylinders, reservoir, filter, troubleshooting, component testing
        
     
    
        
            Electrical System:
        
        
            Wiring diagrams, starter, generator/alternator, battery, lighting, instrumentation, troubleshooting
        
     
    
        
            Chassis And Steering:
        
        
            Front axle, steering mechanism, brakes (mechanical/hydraulic), rear axle, wheel hubs
        
     
    
        
            Operator Station:
        
        
            Controls, seat, platform, fenders, dashboard
        
     
    
    
        
            Maintenance Procedures:
        
        
            Regular service checks, lubrication points, filter replacement, fluid changes
        
     
    
        
            Repair Procedures:
        
        
            Step-by-step disassembly, reassembly, component replacement, adjustments
        
     
    
        
            Troubleshooting Guides:
        
        
            Systematic diagnostic procedures for common and uncommon faults
        
     
    
        
            Overhaul Instructions:
        
        
            Detailed instructions for complete engine, transmission, and hydraulic unit rebuilds
        
     
    
    
        
            Depth Of Coverage:
        
        
            In-depth, suitable for professional mechanics and experienced owners
        
     
 
    
    
    
        
            Digital Format:
        
        
            PDF (Portable Document Format)
        
     
    
    
        
            Digital Resolution:
        
        
            High-resolution, ensuring clarity of text and diagrams
        
     
    
    
        
            Digital Accessibility:
        
        
            Instant download, accessible on multiple devices (PC, tablet, smartphone)
        
     
    
    
        
            Digital Features:
        
        
            Searchable text, clickable links (if applicable in source document)
        
     
 
    
    
    
        
            Engine Make Model:
        
        
            David Brown 3-cylinder diesel engine
        
     
    
        
            Engine Displacement:
        
        
            Approximately 256 ci (4.19 Liters) - *Verify exact spec for 885N variant*
        
     
    
    
        
            Engine Horsepower Drawbar:
        
        
            Typically in the 45-55 HP range at the drawbar - *Verify exact spec*
        
     
    
        
            Engine Horsepower Pto:
        
        
            Typically in the 50-60 HP range at the PTO - *Verify exact spec*
        
     
    
    
        
            Fuel Injection System:
        
        
            Bosch or CAV inline injection pump (typical for era)
        
     
    
 
    
    
    
        
            Gearbox Type:
        
        
            David Brown 12-speed 'Selectamatic' transmission (or similar variant with multiple speeds)
        
     
    
    
        
            Pto Speeds:
        
        
            Standard 540 PTO, potentially optional 1000 PTO - *Verify*
        
     
    
    
        
            Selectamatic System:
        
        
            Hydraulic depth and draft control for implements, often with position control
        
     
 
    
    
    
        
            Wheelbase:
        
        
            Variable, but typically around 80-85 inches (2030-2160 mm) - *Verify*
        
     
    
    
        
            Operating Weight:
        
        
            Approximately 4,500 - 5,500 lbs (2041 - 2495 kg) - *Verify*
        
     
    
        
            Front Tire Size:
        
        
            Commonly 6.00-16 or 7.50-16
        
     
    
        
            Rear Tire Size:
        
        
            Commonly 12.4/11-36 or 14.9-28
        
     
 
    
    
    
        
            Tractor Safety Standards:
        
        
            Meets safety regulations for its production era; manual covers safety precautions for operation and maintenance
        
     
    
    
        
            Braking System:
        
        
            Mechanical contracting band brakes or hydraulic internal expanding brakes, often with independent rear wheel braking
        
     
    
    
        
            Operator Protection:
        
        
            Basic platform, fenders; ROPS (Roll-Over Protective Structure) may be an aftermarket fitment or factory option on later models.
        
     
 
    
    
    
        
            Instrumentation Features:
        
        
            Basic dashboard with tachometer, oil pressure gauge, temperature gauge, battery charge indicator, fuel gauge
        
     
    
    
        
            Tractor Assist Features:
        
        
            Selectamatic hydraulic controls are the primary advanced feature for implement management.
        
     
    
    
        
            Connectivity Options:
        
        
            N/A for this era of tractor; focused on mechanical and hydraulic functionality.
        
     
 
    
    
    
        
            Engine Oil Change Interval:
        
        
            Typically every 250 hours or annually - *Refer to manual for exact specification*
        
     
    
        
            Hydraulic Fluid Change Interval:
        
        
            Typically every 500-1000 hours or annually - *Refer to manual for exact specification*
        
     
    
    
        
            Engine Oil Type:
        
        
            API CD or higher, SAE 15W-30 or 10W-30 (depending on climate) - *Verify with manual*
        
     
    
        
            Hydraulic Transmission Oil Type:
        
        
            David Brown HTD (Hydraulic Transmission Fluid) or equivalent (e.g., John Deere J20C, Case IH MS-1207) - *Crucial to use correct specification*
        
     
    
        
            Coolant Type:
        
        
            Ethylene Glycol based antifreeze with corrosion inhibitors, mixed 50/50 with distilled water
        
     
    
    
        
            Common Wear Points:
        
        
            Hydraulic system (pump, seals), clutch wear, PTO engagement, front axle kingpins, braking system effectiveness
        
     
    
        
            Engine Common Faults:
        
        
            Glow plug reliability, injector wear, fuel pump seals, radiator leaks
        
     
 
    
    
    
        
            David Brown Legacy:
        
        
            David Brown Tractors Ltd. was a British agricultural machinery manufacturer renowned for its robust and innovative tractors, operating from the mid-20th century.
        
     
    
    
        
            885N Series Context:
        
        
            The 885N was part of David Brown's influential 880/885 series, known for their versatility and reliability in farming applications.
        
     
    
    
        
            Production Years:
        
        
            Likely produced in the late 1960s to mid-1970s. Exact range depends on specific 885N variant.