This comprehensive Operation & Maintenance Manual is specifically designed for the Komatsu PC120-6 and PC120LC-6 Hydraulic Excavators, covering serial numbers 70001 and above for both models. The manual offers a detailed and structured guide to help operators and maintenance personnel effectively operate and maintain these machines.

The manual is organized into a clear and logical table of contents, providing easy access to specific information. It covers a wide range of topics, including:

* **Foreword:** Provides an introduction to the manual's purpose and scope.
* **Safety:** Emphasizes the importance of safety procedures and precautions when operating and maintaining the excavator.
* **General Information:** Includes details about the excavator's design, specifications, and operating principles.
* **Operation:** Offers step-by-step instructions on how to safely operate the excavator in various conditions, covering topics such as starting, stopping, traveling, digging, and loading.
* **Maintenance:** Provides a comprehensive guide to routine maintenance tasks, including lubrication, inspection, cleaning, and troubleshooting. It also outlines specific maintenance schedules and procedures for different components.
* **Troubleshooting:** Offers guidance on identifying and addressing potential problems, providing diagnostic charts and troubleshooting steps.
* **Parts:** Contains a detailed parts list, including diagrams and descriptions, to assist with ordering replacement parts.
* **Performance:** Covers performance testing and adjustment procedures to ensure optimal operation.
* **Technical Data:** Provides detailed technical information about the excavator, including dimensions, weights, capacities, and fluid specifications.
* **Warranty Information:** Outlines the warranty terms and conditions for the excavator.

This manual is an invaluable resource for anyone working with Komatsu PC120-6 and PC120LC-6 Hydraulic Excavators, providing essential information for safe and efficient operation, preventative maintenance, and troubleshooting.

The Komatsu PC120-6 and PC120LC-6 hydraulic excavators are powerful and versatile machines designed for a wide range of construction and demolition applications. These models are known for their robust construction, reliable performance, and operator comfort. The PC120-6 series boasts a powerful engine, a well-designed hydraulic system, and a spacious and ergonomic cab. These excavators are equipped with a range of features that enhance productivity and operator efficiency, including a spacious operator cab with excellent visibility, a high-performance hydraulic system for smooth and precise movements, and a wide variety of attachments that can be easily swapped out to handle various tasks. The PC120-6 and PC120LC-6 models are known for their durability and reliability, making them a popular choice among construction professionals worldwide.

Komatsu's PC120-6 series is primarily intended for general construction operations such as excavation, loading, and material handling. Their compact size and maneuverability facilitate efficient work in tight spaces while still providing ample power for demanding tasks. The PC120-6 and PC120LC-6 models are known for fuel efficiency and low operating costs. The robust design and high-quality components ensure a long service life with minimal downtime. These excavators are equipped with advanced safety features, including a comprehensive alarm system and an ROPS/FOPS certified cab, ensuring operator protection in various working environments. Both models are compatible with a wide range of aftermarket attachments, expanding their versatility and allowing them to perform tasks ranging from trenching and demolition to specialized applications like forestry work and environmental cleanup. The PC120-6 and PC120LC-6 series excavators are a testament to Komatsu's commitment to providing reliable, efficient, and user-friendly heavy equipment for the construction industry.