This comprehensive service repair manual provides detailed instructions and technical specifications for the Komatsu PC340-6K, PC340LC-6K, and PC340NLC-6K hydraulic excavators. It is an essential resource for technicians and mechanics responsible for maintaining, repairing, and servicing these machines. The manual covers a wide range of topics, including:

* **General Information:** Provides an overview of the excavator's design, specifications, and operating procedures.
* **Engine:** Detailed information on the engine, including its components, operation, maintenance, and troubleshooting.
* **Hydraulic System:** Comprehensive coverage of the hydraulic system, including pumps, valves, cylinders, and hoses.
* **Undercarriage:** Detailed instructions on the undercarriage components, such as tracks, sprockets, and rollers.
* **Electrical System:** Information on the electrical system, including wiring diagrams, troubleshooting, and component replacement.
* **Cab and Controls:** Coverage of the operator's cab, controls, and safety features.
* **Troubleshooting:** Comprehensive troubleshooting procedures for identifying and resolving a wide range of problems.
* **Parts Catalog:** Includes detailed illustrations and specifications for all parts and components.

This manual is a valuable tool for anyone involved in the maintenance, repair, or operation of Komatsu PC340-6K series excavators. It offers in-depth technical information, clear instructions, and detailed diagrams to help ensure proper maintenance and long-term performance of these powerful machines.

The Komatsu PC340-6K, PC340LC-6K, and PC340NLC-6K are powerful and versatile hydraulic excavators renowned for their reliability and efficiency in various construction and earthmoving applications. These models are part of Komatsu's 6th generation excavator series, known for their advanced technology and improved operator comfort. The PC340-6K is the standard configuration, while the PC340LC-6K features a long undercarriage for enhanced stability and reach in challenging terrain. The PC340NLC-6K, distinguished by its "NLC" designation, boasts a narrow undercarriage, ideal for working in confined spaces. These excavators deliver exceptional performance with a robust engine, a sophisticated hydraulic system, and a spacious, ergonomically designed cab.

The PC340-6K series excavators are equipped with Komatsu's renowned SAA6D107E-2 engine, delivering ample power and torque for demanding earthmoving tasks. The powerful hydraulic system ensures quick and precise control of the boom, arm, and bucket, allowing for efficient excavation and material handling. The spacious cab provides optimal visibility and comfort for the operator, featuring ergonomic controls, adjustable seat, and a climate control system. These excavators are built with safety in mind, incorporating features like a reinforced ROPS/FOPS structure, emergency shutdown systems, and a comprehensive warning system. With their advanced technology, robust construction, and operator-friendly design, the Komatsu PC340-6K series excavators are a reliable and efficient choice for a wide range of construction projects.