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David Brown

David Brown 850 880 950 990 Series Implematic Tractor Service Repair Workshop Manual

David Brown 850 880 950 990 Series Implematic Tractor Service Repair Workshop Manual

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Machine data plate
Brand
David Brown
Equipment
Tractors
Models covered
880
Format
PDF, searchable, print-ready
Delivery
Instant download after checkout
Language
English

What happens after you pay

  • Download link opens on the order page immediately
  • The same link is emailed to you — re-download any time
  • Open on phone, tablet or PC; print only the pages you need
  • Not sure it covers your serial range? Ask us before you buy
🏷️ Basic Information
Identification
Make:
David Brown
Model:
850, 880, 950, 990 Series Implematic
Production Years:
Late 1950s through 1960s and early 1970s
👋 Introduction
Market Position
Target Audience:
Owners, mechanics, technicians, and restoration enthusiasts of David Brown tractors
Competitive Analysis
Value Proposition:
Provides professional-level repair and maintenance information for all Implematic models, enabling self-sufficiency in upkeep and repairs
Key Features
Content Quality:
Factory-level detail with hundreds of pages, including photos and diagrams
Accessibility:
Instant PDF download for immediate access on various devices
📋 Manual Details
Coverage Areas
Vehicles Covered:
David Brown 850, 880, 950, and 990 Implematic tractors
Engine Variants:
Diesel engines (specific engine codes detailed in manual)
Page Count
Estimated Pages:
Hundreds (exact count not specified)
Manual Type
Type:
Factory Service Repair Workshop Manual
Language
Language:
English
Format
Format:
Downloadable PDF
Delivery Method:
Instant download
📖 Manual Coverage
Systems Covered
Engine Service:
Complete overhaul, diagnostics, tuning, and component replacement
Fuel System:
Fuel injection pump, injectors, fuel lines, filters, bleeding procedures
Cooling System:
Radiator, thermostat, water pump, hoses, coolant specifications
Lubrication System:
Oil pump, oil filter, oil pressure, oil specifications and capacities
Transmission And Drivetrain:
Gearbox, differential, rear axle, PTO, Implematic hydraulics
Hydraulic System:
Implement control system, hydraulic pump, valves, cylinders, fluid specifications
Electrical System:
Starter motor, alternator, battery, lighting, wiring diagrams, ignition system if applicable
Braking System:
Brake operation, adjustments, fluid specifications
Steering System:
Steering box, linkage, adjustments
Chassis And Suspension:
Front axle, steering components, rear axle housing
Bodywork And Fittings:
Fenders, seat, controls, dashboard components
Procedures Included
Maintenance:
Scheduled servicing, oil changes, filter replacements, lubrication points, general upkeep
Troubleshooting:
Diagnostic charts, fault finding for all major systems, common problems and solutions
Repair Operations:
Step-by-step instructions for component removal, overhaul, and reassembly
Engine Rebuild:
Detailed procedures for dismantling, inspecting, and rebuilding the engine
Hydraulic System Repair:
Repair of hydraulic pump, valves, rams, and control mechanisms
Transmission Overhaul:
Procedures for gearbox, differential, and PTO unit repairs
Electrical Diagnostics:
Troubleshooting electrical faults using wiring diagrams and test procedures
Technical Depth
Depth:
Comprehensive; covers all repairs, servicing, and troubleshooting procedures
Detail Level:
High; detailed photos, diagrams, exploded views, step-by-step instructions
Torque Specifications:
Essential torque values for all critical fasteners included
Clearances:
Engine valve clearances, bearing clearances, gear backlash, etc. specified
Timing Specifications:
Engine timing procedures and specifications detailed
Parts Information
Part Numbers:
N/A - specific part numbers not described in existing text
Exploded Views:
Diagrams provided to aid component identification and assembly
📊 Manual Specifications
File Format
Format:
PDF
Compatibility:
Windows and MAC computers
Searchability:
Likely searchable text-based PDF
Print Quality
Print Capability:
Print single pages or entire manual
Binding Type
Binding:
Digital (PDF)
Paper Type
Paper:
N/A - digital download
⚙️ Engine Specifications
Primary Engine
Engine Type:
Four-cylinder direct-injection diesel engine (specific engine families like AD4.177, AD4.203 covered)
Performance
Horsepower Range:
Varies by model, typically 40-60 HP (exact figures in manual)
Torque Range:
Varies by model; designed for agricultural applications
Fuel System
Injection System:
Bosch or CAV fuel injection pumps (specific types detailed in manual)
Fuel Type:
Diesel
🔧 Transmission
Standard
Gearbox:
Constant mesh gearbox with multiple forward and reverse gears (e.g., 10 forward, 2 reverse)
Features
Implematic Transmission:
Hydraulically assisted transmission system for clutch operation and implement control
PTO:
Live PTO, 540 RPM (typical)
Rear Axle:
Heavy-duty rear axle with manual differential lock
📐 Dimensions
Exterior
Wheelbase:
Varies by model and configuration (specifics in manual)
Length:
N/A - not specified in existing text
Weights
Operating Weight:
Approximately 4,000 - 5,000 lbs (specific figures in manual)
🛡️ Safety Features
Ratings / Crash Test Information
Crash Test Ratings:
N/A - tractors not subject to standard crash testing
Active Features
Lighting:
Work lights and road lights as standard (specific equipment may vary)
Emergency Stop:
Engine stop control and brake system for safe operation
Passive Features
Rollover Protection:
N/A - ROPS not standard on this era; if present, aftermarket or optional
Seat Belts:
Not typically equipped on tractors of this period
💡 Technology Features
Infotainment
Audio System:
N/A - tractor models from this era do not feature infotainment systems
Driver Assistance
Assist Features:
N/A - not equipped with modern electronic driver assistance
🔧 Maintenance
Service Intervals
Engine Oil Change:
Typically every 100-150 hours (exact interval in manual)
Transmission Oil Change:
Typically every 500-1000 hours (exact interval in manual)
Hydraulic Oil Change:
Typically every 500-1000 hours (exact interval in manual)
Coolant Replacement:
Typically every 2 years or as specified
Fluid Specifications
Engine Oil:
API class CC or CD, SAE 30 or 10W-30 (refer to manual for exact specs)
Transmission Oil:
SAE 80 or 90 gear oil
Hydraulic Oil:
ISO VG 46 or 68 (refer to manual for exact specs)
Coolant:
Ethylene glycol based with corrosion inhibitors
Known Issues / Common Wear Items
Shims:
Valve clearances require periodic adjustment
Injectors:
Fuel injectors and injection pump can wear over time
Hydraulic Seals:
Seals in the Implematic system may need replacement
Electrical:
Wiring connections may corrode, affecting starter and charging
📚 Vehicle History
Brand Heritage
Manufacturer:
David Brown Tractors Ltd.
Manufactured In:
Huddersfield, England
Model Evolution
Implematic Series:
Introduced in the late 1950s as a cost-effective solution for medium-sized farms
Successor:
Replaced by later models like the 880 and 990 Selectamatic
Production Location
Factory:
Huddersfield, West Yorkshire, England
🏆 Awards & Recognition
Recognitions
Awards:
N/A - no specific awards noted for these models
Historical Significance:
Representative of British agricultural engineering from the mid-20th century

Delivery & file format

This is a digital PDF download, not a printed book. After payment the download link appears on your order confirmation page and is emailed to the address you entered. Files open in any PDF reader on phone, tablet or computer and can be printed.

Check the serial range before you buy

Manufacturers change procedures and part numbers by serial-number break. If your data plate shows a serial prefix that is not listed above, contact us with the model and serial number and we will confirm coverage before you order.

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