David Brown Selectmanic Tractors 1970-1979 Service & Repair Workshop Manual Download PDF

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Typ: Tractor

Anbieter:

Art.-Nr: 81215

Stichworte: 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 Aprilia David Brown Misc Motorcycles Selectamatic Tractor

Produktvarianten

Beschreibung

This manual covers the David Brown Selectamatic, a line of tractors produced between 1970 and 1979. Known for their robust British engineering, these vehicles were designed for demanding agricultural applications, featuring reliable diesel engines and the innovative Selectamatic transmission system that offered unparalleled control for its time. The Selectamatic models represent a significant chapter in David Brown's legacy of producing dependable and versatile farm machinery, built to withstand the rigors of daily work. This comprehensive factory service and repair workshop manual provides essential information for owners, mechanics, and restoration specialists. It details maintenance procedures, troubleshooting guides, and technical specifications for the entire vehicle, including diesel engines, the unique Selectamatic transmission, drive types, steering and braking systems, and electrical and hydraulic circuits. The manual is presented in English and is designed to assist in the proper upkeep and repair of your David Brown Selectamatic, ensuring its continued performance and longevity.

🏷️ Basic Information

Identification

Make:

David Brown

Model:

Selectamatic

Codes

Production Period:

1970-1979

👋 Introduction

Market Position

Target User:

Owners, mechanics, and restoration specialists of David Brown Selectamatic tractors from the 1970-1979 era.

Competitive Analysis

Value Proposition:

Provides comprehensive, factory-level repair and maintenance information, essential for preserving and servicing these classic agricultural machines.

Key Features

Manual Access:

Instant download provides immediate access to critical service data.

Completeness:

Covers a wide range of models and systems, representing a full workshop manual.

📋 Manual Details

Coverage Areas

Engines:

Diesel engines (specific models to be detailed within manual)

Transmissions:

Selectamatic transmission system

Drive Types:

2WD (Rear-wheel drive) typically

Steering Systems:

Power steering and manual steering systems

Braking Systems:

Hydraulic braking systems (disc and drum configurations if applicable)

Electrical Systems:

12-volt electrical systems, lighting, ignition, starting circuits

Hydraulic Systems:

Tractor hydraulics, PTO hydraulics, linkage systems

Chassis And Bodywork:

Frame, fenders, operator station, drawbar

Auxiliary Equipment:

Power Take-Off (PTO), linkage, hydraulic remote valves

Page Count

Estimated Pages:

Comprehensive (exact count not specified but expected to be extensive for full factory manual)

Manual Type

Type:

Factory Service & Repair Workshop Manual

Language

Primary Language:

English

Format

Delivery Method:

PDF Download

📖 Manual Coverage

Systems Covered

Engine Overhaul:

Detailed disassembly, inspection, repair, and reassembly procedures for all engine components.

Transmission Repair:

In-depth coverage of the Selectamatic transmission, including hydraulic system, gear selection, and final drive repairs.

Clutch And Drive Axles:

Maintenance and repair of the clutch assembly and rear drive axles.

Steering Mechanism:

Adjustment, repair, and overhaul of steering gears and linkages.

Brake System Maintenance:

Brake caliper/wheel cylinder overhauls, hydraulic line replacement, bleeding procedures.

Electrical Diagnostics:

Wiring diagrams, troubleshooting guides for starting, charging, lighting, and auxiliary electrical systems.

Hydraulic Circuitry:

Diagrams and repair procedures for the tractor's main hydraulic system, including pumps, valves, and cylinders.

Cooling System:

Radiator, thermostat, water pump, and coolant flow troubleshooting.

Fuel System Service:

Diesel injection pump and injector maintenance, fuel filter replacement, bleeding.

Pto And Hitch Systems:

Service and adjustment of the Power Take-Off (PTO) and the three-point hitch.

Procedures Included

Routine Maintenance:

Oil changes, filter replacements, lubrication points, and general inspections.

Troubleshooting Guides:

Diagnostic procedures for common and uncommon faults across all systems.

Component Replacement:

Step-by-step instructions for replacing major and minor components.

Adjustment Procedures:

Settings and adjustments for engine timing, clutch engagement, brake linkages, hydraulic pressures.

Overhaul Instructions:

Comprehensive rebuild instructions for engines, transmissions, and hydraulic pumps.

Electrical Wiring Diagrams:

Detailed wiring schematics for all electrical circuits.

Technical Depth

Diagnostic Capabilities:

Advanced diagnostic procedures, fault finding based on symptoms and measurements.

Repair Complexity:

Covers everything from basic adjustments to full engine and transmission rebuilds.

Specification Detail:

Includes detailed torque specifications, clearances, tolerances, and fluid capacities.

📊 Manual Specifications

File Format

Format:

Portable Document Format (PDF)

Print Quality

Resolution And Clarity:

High-resolution, clear images and text for easy reading and printing.

Binding Type

Delivery Format:

Digital Download (No physical binding)

Paper Type

Digital Medium:

Digital file for viewing on computers, tablets, and smartphones.

⚙️ Engine Specifications

Primary Engine

Engine Type:

Typically 3-cylinder or 4-cylinder indirect injection diesel engines (specific models vary).

Displacement:

Varies by model; common displacements include around 2.5L to 3.6L (e.g., AD4.203, AT4.236).

Performance

Horsepower Range:

Typically 40-70 HP, depending on the specific model and engine variant.

Torque Characteristics:

Designed for strong low-end torque, suitable for agricultural applications.

Fuel System

Injection System:

Indirect injection, typically with CAV or Bosch fuel injection pumps.

Fuel Type:

Diesel Fuel

🔧 Transmission

Standard

Transmission Type:

Selectamatic (Hydromechanical transmission with variable speed control)

Optional

Gearbox Variants:

Likely a single primary transmission type, the Selectamatic, with variations in gear ratios for specific models.

Features

Speed Control:

Infinitely variable speed control within ranges via a lever and hydraulic actuation.

Hydraulic Pump:

Integral hydraulic pump for transmission operation and implement control.

📐 Dimensions

Exterior

Overall Length:

Varies by model, typically around 3.3-3.8 meters.

Overall Width:

Varies by model, typically around 1.7-2.0 meters (track width adjustable).

Wheelbase:

Varies by model, typically around 2.0-2.2 meters.

Weights

Operating Weight:

Approximately 2000-2500 kg, depending on configuration.

Tare Weight:

Refer to specific model specifications within the manual.

🛡️ Safety Features

Ratings

Safety Standards:

Manufactured to industry standards of the era; modern ROPS/FOPS often retrofitted.

Active Features

Braking Performance:

Hydraulic drum or disc brakes offering reliable stopping power.

Passive Features

Operator Station:

Open operator station with basic controls and seating.

💡 Technology Features

Infotainment

Operator Interface:

Basic mechanical controls, no electronic infotainment systems.

Driver Assistance

Safety Features:

Primarily mechanical safety features; no electronic driver assistance systems.

Connectivity

Communication Features:

No electronic connectivity features.

🔧 Maintenance

Service Intervals

Engine Oil Change:

Typically every 250-300 operating hours (refer to manual for precise intervals).

Transmission Fluid Change:

Annually or every 500 operating hours (refer to manual for specific fluid type and interval).

Fuel Filter Replacement:

Regular replacement as per operating hours or if issues arise (e.g., every 250 hours).

Fluid Specifications

Engine Oil:

API CD or equivalent, SAE 30 or 15W-40 (verify in manual based on ambient temperature).

Transmission Hydraulic Fluid:

Specific hydraulic transmission fluid (HTF) or equivalent, such as JD-J20C or Massey Ferguson M1127 (verify exact specification in manual).

Coolant:

Ethylene Glycol based antifreeze mixture (50/50 with water).

Known Issues

Selectamatic Control:

Potential for hydraulic leaks or control issues in the Selectamatic system due to age and wear.

Engine Seals:

Common wear and tear on engine seals leading to oil leaks.

Electrical Corrosion:

Deterioration of wiring and connections due to age and environmental exposure.

📚 Vehicle History

Brand Heritage

David Brown Legacy:

David Brown was a significant British tractor manufacturer known for robust and reliable agricultural machinery.

Model Evolution

Selectamatic Introduction:

The Selectamatic transmission was a key innovation, offering unparalleled ease of control and versatility for its time.

Production

Manufacturing Location:

Principally Meltham, Yorkshire, England.

🏆 Awards & Recognition

Recognitions

Industry Reputation:

David Brown tractors of this era are generally regarded as robust and capable agricultural workhorses.