Target User:
        
        
            Owners, mechanics, restoration specialists, and parts suppliers for David Brown 30C and 30D tractors.
        
     
    
    
        
            Value Proposition:
        
        
            Provides essential part identification for maintenance, repair, and restoration, reducing guesswork and ensuring correct part procurement.
        
     
    
    
        
            Feature 1:
        
        
            Comprehensive exploded diagrams for all major tractor assemblies.
        
     
    
        
            Feature 2:
        
        
            Accurate part numbers for every component, facilitating ordering.
        
     
    
        
            Feature 3:
        
        
            Covers multiple variants (Standard, Diesel, Vigneron, Super, Prairie) of the 30C/30D models.
        
     
    
        
            Feature 4:
        
        
            Instant PDF download for immediate access and convenience.
        
     
    
        
            Feature 5:
        
        
            Printable format allowing users to print only necessary pages.
        
     
 
    
    
    
        
            Models Covered:
        
        
            David Brown 30C, 30D Standard, Diesel, Vigneron, Super, Prairie Tractors
        
     
    
    
        
            Estimated Page Count:
        
        
            Likely extensive (given the 'wealth of information' and exploded diagrams for a full tractor). Exact count not provided, but typically service parts catalogs for this era are 200+ pages.
        
     
    
    
        
            Type:
        
        
            Service Parts Catalogue Manual
        
     
    
    
        
            Language:
        
        
            English (implied by product description and typical manuals of this era/origin)
        
     
    
    
        
            Format:
        
        
            PDF (Downloadable)
        
     
 
    
    
    
        
            Engine:
        
        
            Likely covers all engine components, including cylinder head, block, pistons, crankshaft, camshaft, fuel injection system, lubrication system, cooling system.
        
     
    
        
            Transmission:
        
        
            Covers gearbox components, clutch, power take-off (PTO) mechanism, final drives, differential.
        
     
    
        
            Chassis And Frame:
        
        
            Details of the main chassis, front axle, rear axle, steering system, suspension components.
        
     
    
        
            Hydraulic System:
        
        
            Parts and assemblies for the hydraulic lift, remote control valves, hydraulic pump, and associated plumbing.
        
     
    
        
            Electrical System:
        
        
            Components like starter motor, generator/alternator, battery, lighting, wiring harnesses, and associated electrical parts.
        
     
    
        
            Fuel System:
        
        
            Includes fuel tank, lines, filters, and components of the injection pump and injectors.
        
     
    
        
            Cooling System:
        
        
            Radiator, fan, water pump, thermostat, and related hoses and components.
        
     
    
        
            Braking System:
        
        
            Parts for the braking mechanisms, including brake shoes, drums, linkages, and control levers.
        
     
    
        
            Operator Controls:
        
        
            Components related to steering, throttle, clutch, brake levers, gear selectors, and PTO engagement.
        
     
    
        
            Bodywork And Fittings:
        
        
            Includes fenders, seat assembly, instrument panel, hitch components, drawbar, and other external fittings.
        
     
    
    
        
            Part Identification:
        
        
            Detailed exploded diagrams with corresponding part numbers for easy identification and ordering.
        
     
    
        
            Assembly Disassembly:
        
        
            While not a full repair manual, it provides the order of assembly/disassembly through its exploded views, crucial for parts replacement.
        
     
    
        
            Troubleshooting Assistance:
        
        
            A parts catalog aids troubleshooting by helping identify missing or incorrect parts, or parts that might be prone to failure.
        
     
    
        
            Maintenance Parts:
        
        
            Identifies specific parts for routine maintenance such as filters, seals, gaskets, and wear items.
        
     
    
    
        
            Detail Level:
        
        
            High - focused on precise part identification and relationships within assemblies, essential for mechanics and restoration.
        
     
    
        
            Diagnostic Scope:
        
        
            Supports diagnostics by clearly showing standard component configurations and part numbers.
        
     
 
    
    
    
        
            Engine Type:
        
        
            Likely diesel engines, common for David Brown tractors of this era. Specific engine families (e.g., DB 3-cylinder) would be detailed in the manual.
        
     
    
    
        
            Engine Model Association:
        
        
            The 30C and 30D designation often relates to engine horsepower or configuration. The manual would detail specific engine part numbers for each variant.
        
     
    
    
        
            Displacement Typical:
        
        
            David Brown tractors of this size typically used 3-cylinder diesel engines in the 3-4 litre range. Specific displacement values for different engine variants would be found within.
        
     
    
        
            Horsepower Range:
        
        
            The '30' in the model name suggests an approximate horsepower rating, likely in the 30-40 HP range. Exact PTO and engine HP for each variant would be listed.
        
     
    
    
        
            Injection System:
        
        
            Likely a mechanical injection system. Manual would detail components from injection pump manufacturers (e.g., CAV, Simms) and associated parts.
        
     
 
    
    
    
        
            Gearbox Type:
        
        
            Manual transmission with multiple forward and reverse gears. Specific gear counts (e.g., 6 forward, 2 reverse) and PTO speeds would be detailed.
        
     
    
    
        
            Pto Options:
        
        
            Often included independent PTO, with specific gear ratios and part numbers for PTO shafts, gears, and engagement mechanisms.
        
     
    
    
        
            Clutch Type:
        
        
            Likely a single or dual-plate dry clutch. Manual would list clutch plates, pressure plates, and release bearings.
        
     
    
        
            Final Drive:
        
        
            Robust final drive assemblies with gears and bearings, critical for torque transfer to the rear wheels. Manual provides part numbers for these components.
        
     
 
    
    
    
        
            Engine Oil Change:
        
        
            Typically every 100-150 operating hours. Manual would specify exact intervals and recommended oil grades.
        
     
    
        
            Air Filter Service:
        
        
            Frequent service, often every 50-100 hours depending on operating conditions. Manual lists part numbers for filters.
        
     
    
        
            Hydraulic Fluid Change:
        
        
            Generally annually or every 250-500 hours. Manual would detail fluid type and filter part numbers.
        
     
    
    
        
            Engine Oil Grade:
        
        
            Likely SAE 20W-30 or 10W-30 diesel engine oil. Manual would provide specific API service classifications.
        
     
    
        
            Hydraulic Fluid Type:
        
        
            Typically a Type A or UTF (Universal Tractor Transmission) fluid. Manual would specify the exact type and viscosity.
        
     
    
    
        
            Common Wear Points:
        
        
            Steering components, clutch wear, hydraulic pump reliability, and engine seals are common areas for wear on vintage tractors. The manual helps identify these parts.
        
     
    
        
            Seal Leaks:
        
        
            Age-related seal degradation is common in engines and transmissions, requiring replacement of various seals and gaskets identified by part numbers in the catalog.
        
     
 
    
    
    
        
            Manufacturer:
        
        
            David Brown Tractors Ltd., a British manufacturer known for its robust and reliable agricultural machinery.
        
     
    
    
        
            Production Period:
        
        
            The 30C and 30D models were produced from the mid-1950s through the early 1960s, representing a significant generation of David Brown tractors.
        
     
    
    
        
            Manufacturing Location:
        
        
            Typically manufactured at the David Brown factory in Meltham, Yorkshire, England.
        
     
    
        
            Significance:
        
        
            These models were workhorses for farming communities and saw significant global distribution.