Market Position:
A vital resource for owners and mechanics of David Brown Case tractors (models 770 through 1175), providing essential information for maintenance, repair, and optimal performance.
Target Audience:
Professional mechanics, farm equipment technicians, agricultural cooperatives, and owners of David Brown Case 770, 870, 970, 1070, 1090, 1170, and 1175 tractors seeking to perform their own maintenance and repairs.
Value Proposition:
Offers comprehensive, detailed, and easily accessible repair information, enabling users to perform maintenance and repairs themselves, saving costs on professional services and extending the life of the tractor.
Advantage Over Alternatives:
Provides a single, comprehensive digital resource that is instantly accessible, potentially more current and detailed than older paper manuals, and cost-effective compared to dealership service.
Key Features:
• Instant PDF download
• Covers multiple tractor models
• Detailed step-by-step instructions
• Exploded diagrams and illustrations
• Covers all major systems
• Printable for hardcopy use
Detailed System Coverage:
Comprehensive coverage across all major mechanical, electrical, and hydraulic systems of the specified tractor models, including specific sub-systems like turbocharger operation, power shift clutch function, and PTO engagement mechanisms.
Engine Systems Detailed:
Engine overhaul procedures, piston and ring replacement, bearing services, cylinder head work, valve timing, cooling system diagnostics and repair (radiator, thermostat, water pump), fuel system servicing (injection pump timing, injector testing, filter changes), lubrication system maintenance, and turbocharger inspection and replacement (if applicable).
Transmission And Drivetrain:
Detailed coverage of gearbox disassembly and assembly, clutch replacement, power shift clutch pack servicing, differential overhaul, final drive repairs, axle maintenance, and PTO shaft and clutch repair.
Hydraulic System:
In-depth information on the hydraulic pump, control valves, cylinders, filters, fluid reservoirs, and troubleshooting of common hydraulic issues such as slow operation, leaks, or loss of power.
Electrical System:
Wiring diagrams, troubleshooting for starting and charging systems, lighting circuits, instrument panel functions, and component testing for alternators, starters, and batteries.
Braking System:
Service and repair of hydraulic or mechanical braking systems, including brake shoes, drums, master cylinders, and bleeding procedures.
Repair Procedures:
Step-by-step repair instructions for a wide range of maintenance and repair tasks, from routine servicing to complex overhauls. Includes diagnostic procedures and troubleshooting guides.
Diagnostic Procedures:
Troubleshooting guides for identifying common faults across all systems, often presented in a logical, step-by-step format.
Maintenance Procedures:
Routine maintenance tasks such as lubrication, filter changes, fluid level checks, and inspections, with clear instructions and recommended intervals.
Rebuild Procedures:
Comprehensive guides for rebuilding major components like engines, transmissions, hydraulic pumps, and differentials, including part identification and assembly sequences.
Adjustment Procedures:
Detailed instructions for adjusting critical systems, such as clutch engagement, brake pedal free play, PTO engagement, and hydraulic valve settings.
Technical Depth:
In-depth technical detail suitable for mechanics and experienced owners, featuring exploded diagrams, torque specifications, and detailed component descriptions for accurate repairs and adjustments.
Torque Specifications:
Extensive list of torque values for critical fasteners and bolts throughout the tractor, essential for proper assembly and safety.
Tolerances And Clearances:
Specific measurements for component clearances and tolerances required during rebuilding or adjustment to ensure correct operation and longevity.
Schematics And Diagrams:
Inclusion of detailed exploded views, system schematics (hydraulic, electrical), and component illustrations to aid in identification and repair.
Steering Service:
Repair and adjustment of steering gears, power steering systems (if equipped), tie rods, and associated components.
Engine Family:
Likely based on David Brown/Case engines of the era, varying by model. Expect robust diesel engines.
Engine Types Examples:
Likely features naturally aspirated diesel engines, potentially with a turbocharger option on higher horsepower models (e.g., 1070, 1170). Specific engine families (e.g., David Brown's own designs or Case's integrated offerings) would be detailed.
Performance Data:
Detailed specifications for horsepower, torque, and operating ranges for each engine variant within the covered models will be present in the manual.
Fuel System Details:
Coverage includes fuel injection systems, pumps, filters, and associated components, crucial for diesel engine operation and troubleshooting.
Transmission Types:
The manual will detail various transmission options, including mechanical gearboxes and potentially power shift transmissions, common in these robust farm tractors.
Gearbox Configurations:
Details on 8-speed, 12-speed, or even higher gear count transmissions, including the operation of synchronized versus non-synchronized gearboxes.
Power Shift Clutch:
Specific instructions for the maintenance and repair of the power shift clutch system, a key feature in higher-specification models.
Transmission Fluid Specifications:
Likely specifies appropriate hydraulic and transmission fluids (e.g., John Deere Hy-Gard, Case IH Tuf-2, or equivalent) and their maintenance requirements.
Scheduled Maintenance:
The manual will provide detailed recommended service intervals for engine oil changes, filter replacements (oil, fuel, air), hydraulic fluid checks, and lubrication points.
Lubrication Schedule:
Specific recommendations for greasing points, wheel bearings, steering linkages, and other pivot points, with frequency based on operating hours or time.
Fluid Recommendations:
Specific recommendations for engine oil viscosity grades (e.g., API CG-4 or CD), coolant types, hydraulic fluid specifications, and grease types will be detailed.
Coolant Specifications:
Details on the correct type and mixture ratio of antifreeze/coolant for the engine's cooling system, including corrosion inhibitors.
Common Wear Points:
The manual may implicitly or explicitly highlight common wear points or potential issues for these models, such as hydraulic pump performance, clutch wear, or PTO engagement problems, providing troubleshooting tips.
Troubleshooting Common Faults:
Guidance on diagnosing and rectifying issues such as hydraulic system pressure loss, starter motor failures, PTO engagement problems, or engine performance degradation.
David Brown Heritage:
David Brown tractors have a long history of robust engineering, originating in the UK. Their integration with Case formed a significant part of the Case IH lineage.
Model Range Evolution:
The 770, 870, 970, 1070, 1090, 1170, and 1175 represent a progression of horsepower and features within David Brown Case's tractor lineup during their production eras, reflecting advancements in agricultural machinery.
Key Model Differences:
The manual will differentiate between models based on engine power output, transmission options (especially the introduction of power shift), hydraulic system capacity, and axle configurations, providing model-specific instructions where necessary.
Production Years:
These models were produced during the late 1960s through the 1970s, a period of significant development in agricultural technology.
