David Brown 850 880 950 990 Series Implematic Tractor Complete Workshop Service Repair Manual

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Taper: Tractor

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UGS: 70164

Mots clés: 850 850 Implematic 880 950 990 Agriculture David Brown Featured Tractor Tractors

Variantes de produits

Description

This manual provides comprehensive service and repair information for the 850, 880, 950, and 990 Series Implematic tractors. Produced primarily during the late 1950s through the 1960s, these British-manufactured tractors are known for their robust engineering and reliability in agricultural applications. Key features include the integrated Implematic hydraulic draft control and linkage system, along with powerful diesel engines. This documentation is essential for maintaining the operational integrity and longevity of these classic machines, enabling owners and technicians to perform all necessary maintenance and repairs effectively. This complete workshop service repair manual covers all aspects of the Implematic series, from routine maintenance and adjustments to complete engine and transmission rebuilds. It details procedures for every major system, including the engine, fuel, cooling, lubrication, electrical, clutch, transmission, hydraulics, steering, braking, and chassis. The manual includes step-by-step instructions, diagnostic procedures, troubleshooting guides, and essential technical specifications such as torque settings and fluid recommendations. Its purpose is to empower owners and mechanics with the knowledge required for accurate diagnostics, efficient repairs, and proper upkeep, ensuring these agricultural workhorses remain in optimal working condition.

🏷️ Basic Information

Identification

Make:

David Brown

Model:

850, 880, 950, 990 Series Implematic

Product Type:

Complete Workshop Service Repair Manual

👋 Introduction

Market Position

Market Position:

Essential documentation for owners and mechanics of David Brown 850, 880, 950, and 990 Series Implematic tractors, enabling cost-effective self-maintenance and repair.

Competitive Analysis

Competitive Analysis:

This manual provides the crucial technical details that allow users to bypass the need for expensive dealer servicing, making it a highly valuable resource for maintaining these classic agricultural machines.

Key Features

Key Features:

Comprehensive coverage, step-by-step instructions, clear diagrams and pictures, instant delivery, multi-device compatibility, printable format, lifetime ownership.

📋 Manual Details

Coverage

Coverage Areas:

All service and repair procedures A-Z, all models, engines, trim, and transmission types.

Page Count

Page Count:

Not explicitly stated, but described as 'complete' and 'covers all repair procedures A-Z'.

Manual Type

Manual Type:

Workshop Service Repair Manual

Language

Language:

English (assumed based on description language)

Format

Format:

PDF Download

📖 Manual Coverage

Systems Covered

Systems Covered:

Engine, Fuel System, Cooling System, Lubrication System, Electrical System, Ignition System, Clutch, Transmission (Gearbox), Final Drive, Rear Axle, Power Take-Off (PTO), Hydraulic System (including Implematic linkage), Steering System, Braking System, Front Axle, Chassis, Bodywork, Controls, Instrumentation, Troubleshooting.

Procedures Included

Procedures Included:

Step-by-step instructions for all servicing and repair jobs, diagnostics, adjustments, overhauls, rebuilds, component replacement, and scheduled maintenance.

Technical Depth

Technical Depth:

Comprehensive, from basic maintenance and adjustments to complete engine and transmission rebuilds, hydraulic system diagnostics and repair, and electrical system troubleshooting.

Diagnostics

Diagnostic Procedures:

Includes procedures for diagnosing common mechanical, hydraulic, and electrical faults, often with flowcharts or symptom-based troubleshooting.

Rebuilds

Engine Rebuild Details:

Detailed instructions for engine disassembly, component inspection (e.g., cylinder bore, crankshaft journals), fitting new parts, and reassembly, including bearing clearances and ring end gap specifications.

Transmission Rebuild Details:

Comprehensive guide for gearbox disassembly, inspection of gears, shafts, bearings, and synchromesh components, along with assembly procedures and lubrication points.

Hydraulic System

Hydraulic System Coverage:

In-depth coverage of the Implematic hydraulic pump, control valve, lift arms, draft control system, and associated pipework and seals.

Electrical System

Electrical System Diagrams:

Includes wiring diagrams for lighting, starting, charging, and instrumentation systems, with component identification.

Torque Specifications

Torque Settings Engine:

Specific torque values for critical engine fasteners such as cylinder head bolts, connecting rod bolts, main bearing caps, and flywheel nuts.

Torque Settings Transmission:

Torque specifications for transmission case bolts, differential housing, and other drivetrain components.

Parts Identification

Parts Identification Details:

While not a parts catalog, the manual will identify key components and their functions, aiding in parts ordering.

Technical Data Tables

Technical Data Tables:

Likely includes tables for engine specifications, fluid capacities, bearing clearances, and other essential technical data.

Schematics

Schematics Included:

Flow diagrams for hydraulic systems and electrical schematics are standard in such manuals.

📊 Manual Specifications

File Format

File Format:

Print Quality

Print Quality:

High Quality, supports printing of individual pages, chapters, or the entire manual.

Binding Type

Binding Type:

N/A (Digital Download)

Paper Type

Paper Type:

N/A (Digital Download)

Software Requirements

Software Requirements:

Adobe Reader (or compatible PDF reader)

⚙️ Engine Specifications

Primary Engine

Engine Type:

David Brown diesel engines (typically AD4/45, AD4/55, AD4/65 variations across models).

Performance

Horsepower Range:

Varies by specific model and engine variant (e.g., 850 series typically 35-45 HP, 950/990 series 45-65 HP).

Torque Specifications:

Detailed torque settings for critical engine components (e.g., cylinder head bolts, main bearing caps) will be found within the manual.

Fuel System

Fuel System Type:

Direct injection diesel, typically utilizing Simms or CAV fuel injection pumps.

Lubrication System

Oil Capacity Approx:

Capacity details and oil type specifications (e.g., API CD or equivalent) will be provided for each engine variant.

Cooling System

Cooling System Type:

Water-cooled, pressurized system with a thermostat.

Maintenance

Valve Clearance Spec:

Precise cold valve clearance specifications for intake and exhaust valves will be detailed for each engine.

🔧 Transmission

Standard

Transmission Type:

David Brown designed constant mesh gearbox with a multi-speed range selector.

Optional

Optional Features:

Some models may have offered creeper gears or alternative PTO options.

Features

Implematic System:

The manual covers the operation, maintenance, and repair of the 'Implematic' hydraulic draft control and linkage system, a key feature of these tractors.

Maintenance

Transmission Fluid Type:

Specific recommendations for transmission and hydraulic oil (e.g., SAE 80W/90 GL-4 or dedicated tractor hydraulic fluid) will be detailed.

📐 Dimensions

Exterior

Wheelbase:

Varies by specific model, but generally in the range of 75-85 inches (approx. 1900-2150 mm).

Weights

Operating Weight Approx:

Typically ranges from 3500 to 4500 lbs (approx. 1590 to 2040 kg), depending on configuration.

🛡️ Safety Features

Ratings

Safety Ratings:

N/A (Tractor safety standards and ratings were different during their production era compared to modern vehicles).

Active Features

Active Safety Features:

Basic mechanical braking system, differential lock (optional/standard on some models).

Passive Features

Passive Safety Features:

Operator controls layout and basic guarding. The manual will detail safe operating procedures.

💡 Technology Features

Infotainment

Infotainment System:

N/A (Basic mechanical controls and instrumentation).

Driver Assistance

Driver Assistance Features:

N/A (Focus on mechanical operation and basic safety features).

Connectivity

Connectivity Options:

🔧 Maintenance

Service Intervals

Engine Oil Change Interval:

Typically every 100-250 operating hours, with specific details provided in the manual.

Air Filter Service Interval:

Regular checks and cleaning/replacement based on operating conditions, with specifications in the manual.

Fluid Specifications

Engine Oil Specification:

API CD or equivalent diesel engine oil, viscosity grade dependent on ambient temperature (e.g., SAE 20W-30, SAE 30, SAE 10W-30).

Coolant Specification:

Water mixed with antifreeze (ethylene glycol based) in the correct ratio for temperature and corrosion protection.

Hydraulic Fluid Specification:

Often shared with transmission oil; specific grades like SAE 80W/90 or specialized tractor hydraulic fluids will be detailed.

Known Issues

Common Issues:

Wear in the Implematic hydraulic system (leaks, sluggishness), clutch wear, potential for engine wear (e.g., piston rings, bearings) due to age, electrical system reliability.

Troubleshooting

Troubleshooting Guidance:

The manual provides comprehensive troubleshooting charts and procedures for common problems across all major systems.

📚 Vehicle History

Brand Heritage

Brand Heritage:

David Brown Tractors, a British manufacturer renowned for robust and reliable agricultural machinery, formed part of the Tenneco conglomerate later.

Model Evolution

Model Evolution:

The 850, 880, 950, and 990 series represented a significant evolution in David Brown's tractor line, incorporating hydraulic systems like the Implematic and developing more powerful diesel engines.

Production

Production Period:

These models were primarily produced from the late 1950s through the 1960s.

Manufacturing Locations

Manufacturing Locations:

United Kingdom.