Model:
770, 870, 970, 1070, 1090, 1170, 1175
Manual Identifier:
Complete Workshop Service Repair Manual
Target User:
Tractor owners, farmers, agricultural mechanics, DIY repair enthusiasts.
Value Proposition:
Enables significant cost savings on repairs and maintenance by empowering users to perform tasks themselves.
Feature 1:
Step-by-step instructions with accompanying pictures for ease of understanding.
Feature 2:
Comprehensive coverage across a wide range of David Brown tractor models.
Feature 3:
Printable to any extent (chapter, section, or full manual).
Feature 4:
Accessible on multiple devices (PC, Mac, tablets, smartphones).
Primary Coverage:
Complete Service and Repair Procedures A-Z
Model Coverage:
All Models, Engines, Trim, and Transmission Types within the 770, 870, 970, 1070, 1090, 1170, and 1175 series
Estimated Page Count:
N/A (Digital format, printable by user)
Type:
Workshop Service Repair Manual
Engine:
Full engine overhaul, diagnostics, tuning, fuel system, lubrication, cooling, starting and charging systems.
Transmission:
Clutch, gearbox, differential, PTO (Power Take-Off) operation and repair.
Hydraulics:
Hydraulic system operation, pump, valves, cylinders, linkages, and control systems.
Electrical:
Wiring diagrams, starter motor, alternator, lighting, ignition, instrumentation, and troubleshooting.
Chassis And Body:
Front axle, steering system, brakes, rear axle, wheels, tires, and bodywork repair.
Maintenance:
Routine checks, lubrication schedules, fluid changes, filter replacements, general servicing.
Diagnostics:
Troubleshooting guides for common and uncommon issues, fault finding procedures.
Repair:
Step-by-step instructions for component replacement, rebuilds, and adjustments.
Overhaul:
Comprehensive procedures for complete engine, transmission, and hydraulic system overhauls.
Depth:
Comprehensive, covering everything from basic adjustments to full engine and transmission rebuilds.
File Type:
Portable Document Format (PDF)
Quality:
High Quality, enables clear printing of all text and images.
Binding:
N/A (Digital download, user printable)
Paper:
N/A (Digital download, user printable)
Access Method:
Instant email delivery upon payment confirmation.
Engine Type:
David Brown diesel engines (specific variants for each model, typically inline 3 or 4 cylinder).
Horsepower Range:
Varies by model, generally 40-75 HP (PTO horsepower).
Torque Characteristics:
Designed for strong low-end torque for agricultural applications.
Injection System:
Typically rotary or inline injection pumps (e.g., Simms, CAV).
Gearbox Type:
David Brown Constant Mesh or Synchromesh gearboxes.
Powershift Options:
Some later models may have featured options like a 'Selectamatic' or similar hydraulic/mechanical power-assist system.
Pto:
Standard Power Take-Off (PTO) unit, often with multiple speeds (e.g., 540/1000 RPM).
Differential Lock:
Rear differential lock for enhanced traction.
Features:
Basic instrumentation (tachometer, oil pressure, temperature, fuel gauge), often manual start ignition.
Features:
Mechanical steering, mechanical PTO engagement, basic braking controls.
Engine Oil Change:
Typically every 100-250 operating hours, depending on operating conditions and oil specification.
Air Filter Service:
Regular checks, service every 50-100 hours or as indicated by air cleaner restriction indicator.
Hydraulic Fluid Change:
Typically every 500-1000 operating hours.
Engine Oil:
API CD or CE rated SAE 15W-40 or 10W-30 diesel engine oil (refer to specific engine manual for exact API classification and viscosity).
Hydraulic Fluid:
David Brown Hy-Tran fluid or equivalent UTF (Universal Tractor Transmission Fluid) meeting Caterpillar TO-4 or John Deere JDM J20C specifications.
Transmission Oil:
May share the same specification as hydraulic fluid or require a dedicated gear oil; consult manual for specifics.
Issue 1:
Hydraulic system leaks or loss of lifting power due to worn pump seals or control valve issues.
Issue 2:
Wear in gearbox synchromesh rings leading to difficult gear engagement.
Issue 3:
Overheating due to radiator blockage or faulty thermostat.
Issue 4:
Starter motor or alternator failure, common with age and usage.
Manufacturer:
David Brown Tractors Ltd., a British manufacturer of agricultural machinery.
Production Period:
These models were primarily produced from the late 1960s through the 1970s.
Manufacturing Location:
Meltham, Yorkshire, United Kingdom.
