Positioning:
Essential technical documentation for owners and technicians of David Brown Case 770 and 870 tractors, providing comprehensive repair and maintenance guidance.
Value Proposition:
Offers an 'Improved PDF' format with enhanced navigation (bookmarks, search) and quality, ensuring efficient access to critical service information compared to older or less organized manuals.
Instant Access:
Instant download capability removes waiting time for critical repair information.
Digital Benefits:
Avoids physical wear and tear of paper manuals; allows for easy storage and access across multiple devices.
Technical Accuracy:
Based on manufacturer specifications and diagrams for reliable service procedures.
Main Systems:
Engine, Transmission, Hydraulics, Electrical, Brakes, Steering, Fuel System, Cooling System, PTO, Final Drive, Front Axle
Specific Procedures:
Maintenance, Repair, Overhaul, Troubleshooting, Diagnostics, Adjustments, Inspections
Estimated Pages:
N/A (PDF, variable based on zoom/print)
Type:
Service and Repair Manual
Format:
PDF (Downloadable)
Engine:
Detailed coverage including disassembly, assembly, inspection, and overhaul of major engine components.
Diesel Fuel System:
Comprehensive information on diesel injection pumps, injectors, fuel lines, filters, and troubleshooting.
Gasoline Fuel System:
Coverage for gasoline engine fuel system components (if applicable to specific 770/870 variants).
Diesel Turbocharger:
Specific maintenance and repair procedures for turbocharged diesel engines.
Cooling System:
Radiator, water pump, thermostat, hoses, and coolant specifications and service.
Clutch:
Single and dual-clutch assembly servicing, adjustment, and replacement procedures.
Power Shift Clutch:
Detailed procedures for the Power Shift transmission clutch system.
Transmission:
Service and repair for various transmission types, including gear selection, overhaul, and lubrication.
Final Drive:
Maintenance and repair of the final drive assemblies, including gears and bearings.
Differential:
Service procedures for the differential unit, including lubrication and adjustments.
Front Axle:
Maintenance and repair of the front axle, including steering components and hubs.
Steering Gear:
Service and adjustments for the steering mechanism.
Power Steering System:
Hydraulic power steering system maintenance and repair.
Hydraulic System:
Comprehensive coverage of the tractor's hydraulic system, including pump, valves, cylinders, and fluid maintenance.
Power Take Off Pto:
Service and repair for the PTO engagement and drive systems.
Brakes:
Detailed procedures for servicing, adjusting, and repairing the braking system.
Electrical System:
Wiring diagrams, starter, alternator, battery, lighting, and component testing.
Governor Non Diesel:
Service and adjustment for non-diesel engine governors (if applicable).
Routine Maintenance:
Oil changes, filter replacements, lubrication points, and general inspections.
Troubleshooting Diagnostics:
Systematic diagnostic procedures for identifying and resolving common and complex issues.
Component Overhaul:
Complete disassembly, cleaning, inspection, repair, and reassembly of major components.
Adjustment Calibration:
Precision adjustments for clutch, brakes, governor, PTO, and hydraulic systems.
Torque Specifications:
Precise torque values for critical fasteners across all systems.
Wiring Diagrams:
Detailed electrical schematics for accurate troubleshooting and repair.
Exploded Diagrams:
Visual breakdown of assemblies for easy identification of parts and their relationships.
Illustrations Photos:
High-quality diagrams and photographs to guide repair processes.
Depth:
Comprehensive, from routine maintenance to complete engine and transmission rebuilds.
Target Audience:
Professional mechanics, experienced DIY users, and service technicians.
Make Model:
David Brown (various diesel engine options depending on specific 770/870 variant)
Cylinder Configuration:
Likely inline 3 or 4 cylinder diesel configurations, common for this era of tractors.
Displacement:
Specific displacement varies by engine option; manual will detail specific engine variants (e.g., 770 series might use a ~2.5L engine, 870 series a ~3.0L engine).
Horsepower Range:
Typically in the 50-70 HP range, depending on model and engine.
Torque Specifications:
Torque figures will be detailed within the manual for specific engine variants.
Fuel Type:
Diesel (primarily); Gasoline mentioned for some variants.
Injection Type:
Direct Injection (typical for David Brown diesel engines of this era).
Fuel Pump Details:
Manual covers service and calibration of injection pumps (e.g., Simms, CAV).
Engine Oil Change:
Typically every 100-250 operating hours, depending on operating conditions and oil type.
Fuel Filter Replacement:
Recommended every 250-500 operating hours or as needed.
Hydraulic Fluid Change:
Annually or every 500-1000 operating hours, with filter replacement at each change.
Engine Oil:
API CD or CE rated diesel engine oil, typically SAE 15W-40 or 30 (check manual for exact viscosity based on temperature).
Coolant:
Ethylene glycol based antifreeze mixture with a 50/50 concentration for proper freeze and corrosion protection.
Transmission Hydraulic Fluid:
Universal Tractor Transmission Fluid (UTTO) meeting specifications like John Deere J20C/J20D or equivalent.
Common Wear Items:
Wear in clutch friction plates, hydraulic pump wear, front axle kingpin wear, and PTO clutch engagement issues.
Electrical Corrosion:
Older wiring harnesses can be susceptible to corrosion and insulation breakdown, requiring inspection and repair.
Sealing Leaks:
Hydraulic system seals, engine oil seals, and transmission seals can degrade over time, leading to leaks.
