This comprehensive manual provides detailed technical information and step-by-step instructions for servicing and repairing Komatsu PC800-8E0, PC800LC-8E0, PC800SE-8E0, PC850-8E0, and PC850SE-8E0 hydraulic excavators. It covers a wide range of topics, including: * **General specifications and features:** This section outlines the overall design, dimensions, and operational characteristics of the excavators. * **Engine and powertrain:** Provides detailed information on the engine, transmission, and related components, including troubleshooting guides and maintenance procedures. * **Hydraulic system:** Covers the hydraulic system in depth, including pumps, valves, cylinders, and control circuits. It includes diagrams, troubleshooting steps, and repair procedures for each component. * **Undercarriage:** Provides detailed information on the undercarriage components, such as tracks, sprockets, rollers, and idlers. The manual includes instructions for inspection, maintenance, and replacement. * **Electrical system:** Discusses the electrical system, including wiring diagrams, circuit descriptions, troubleshooting steps, and repair procedures for components such as starters, alternators, sensors, and control modules. * **Operator's cab and controls:** Includes information on the operator's cab, including safety features, ergonomics, controls, and instrumentation. * **Field Assembly Manual:** Provides detailed instructions for assembling and disassembling the excavator, with illustrations and step-by-step guides. This manual is an indispensable resource for technicians, mechanics, and operators involved in maintaining and repairing Komatsu PC800-8E0 series hydraulic excavators.

The Komatsu PC800-8E0, PC800LC-8E0, PC800SE-8E0, PC850-8E0, and PC850SE-8E0 hydraulic excavators are heavy-duty machines designed for large-scale construction, mining, and quarrying operations. These models boast impressive power and performance, equipped with powerful Komatsu engines and robust hydraulic systems. The PC800-8E0 series is recognized for its efficient fuel consumption and low emissions, contributing to a sustainable work environment. The "LC" designation denotes a long-carriage version, offering enhanced reach and versatility in various applications. The "SE" models are specially engineered for severe duty applications, featuring reinforced components and enhanced durability for handling demanding tasks in harsh conditions. These excavators are equipped with advanced features that enhance operator comfort and productivity. The spacious cabs provide excellent visibility and ergonomic controls, minimizing operator fatigue during extended work sessions. The hydraulic systems are designed for smooth and precise control, allowing for accurate digging, lifting, and material handling. Integrated safety features include overload protection systems, automatic shutdown mechanisms, and comprehensive monitoring systems, ensuring operator safety and machine longevity. The Komatsu PC800-8E0 series provides a compelling combination of power, efficiency, and reliability, making them a preferred choice for professionals seeking high-performance heavy-duty excavators for challenging construction projects.