Model:
770, 870, 970, 1070, 1090, 1170, 1175
Product Type:
Service Repair Workshop Manual
Target Audience:
David Brown tractor owners, mechanics, agricultural workshops, restoration specialists
Value Proposition:
Provides comprehensive, factory-level technical information for DIY repairs and professional servicing, saving significant costs compared to dealership services.
Content Richness:
Hundreds of pages with detailed photos, diagrams, and step-by-step instructions.
Accessibility:
Instant download, usable on multiple devices, lifetime access.
Primary Coverage:
All repairs, servicing, and troubleshooting procedures
Estimated Page Count:
Hundreds of pages (specific count not provided, but described as extensive)
Type:
Factory Service Repair Workshop Manual
Engine:
Comprehensive engine overhaul, diagnostics, tuning, fuel system, lubrication system, cooling system
Transmission:
Gearbox overhaul, clutch, PTO, differential, final drives, hydraulic transmission components
Hydraulics:
Hydraulic pump, control valves, lift arms, auxiliary hydraulic circuits, troubleshooting
Electrical System:
Wiring diagrams, starter motor, alternator, battery, lighting, instrumentation, troubleshooting
Chassis And Steering:
Front axle, rear axle, steering system, brakes (mechanical and hydraulic), wheel alignment
Bodywork And Operator Station:
Sheet metal repair, operator seat, controls, fenders, guards
Routine Maintenance:
Oil changes, filter replacements, lubrication points, inspections, adjustments
Diagnostic Troubleshooting:
Step-by-step troubleshooting guides for common and complex issues
Repair And Rebuild:
Detailed instructions for component disassembly, repair, and reassembly
Technical Specifications:
Torque values, clearances, fluid capacities, specifications for all systems
Depth:
Professional-grade, suitable for mechanics and technicians; covers complete rebuilds and advanced diagnostics
Engine Type:
Various David Brown diesel engines (details vary by model)
Horsepower Range:
Approximately 30 HP (770) to over 70 HP (1070, 1170, 1175) - specific ratings vary by model and engine option. Manual covers all these variations.
Torque Specifications:
Detailed torque specifications for all engine components are provided.
Injection System:
Details on CAV, Lucas, or other applicable diesel injection pump systems and injectors
Oil Capacity:
Specific oil capacities for various engine models are included in the manual.
Coolant Type:
Specifications for appropriate coolant mixtures and types are detailed.
Gearbox Type:
David Brown constant mesh gearboxes, David Brown Selectamatic hydraulic transmission
Pto Options:
Live PTO, ground speed PTO configurations detailed
Hydraulic Lift:
Detailed operation and servicing of the Selectamatic hydraulic system, including draft control and position control.
Transmission Oil Type:
Specific recommendations for hydraulic oil and transmission lubricants are provided.
Engine Oil Change:
Typically every 100 or 250 operating hours, depending on application and oil type. Manual provides exact schedule.
Hydraulic Fluid Change:
Recommended intervals for hydraulic and transmission fluid changes are detailed.
Air Filter Maintenance:
Procedures for cleaning and replacement of air filters are covered.
Engine Oil Viscosity:
Manual specifies recommended SAE viscosity grades for various operating temperatures (e.g., SAE 30, 10W-30).
Hydraulic Oil Specifications:
Details on specific hydraulic oil types and viscosity grades suitable for the Selectamatic system.
Common Wear Points:
Manual addresses common wear items such as clutch components, hydraulic pump seals, and PTO clutches.
Electrical Problems:
Troubleshooting for starter, charging system, and wiring harness issues.
Filter Part Numbers:
While specific part numbers are not listed in the product description, this manual typically includes them or provides cross-reference information.