This comprehensive manual provides a thorough guide to servicing, repairing, operating, and maintaining Komatsu WB140PS-2N and WB150PS-2N backhoe loaders. The manual is divided into two sections: The **Service Repair Manual** offers detailed information on dismantling, assembling, adjusting, and troubleshooting various components of the backhoe loader. It includes exploded diagrams, specifications, and step-by-step repair procedures for engines, transmissions, hydraulic systems, electrical systems, and other critical components. The **Operation & Maintenance Manual** covers the safe and efficient operation of the backhoe loader. It includes operator instructions, preventive maintenance schedules, lubrication charts, and troubleshooting guides for common operational issues. This section helps ensure proper use of the machine and extends its lifespan through regular maintenance practices.

The Komatsu WB140PS-2N and WB150PS-2N backhoe loaders are robust and versatile machines designed for a wide range of construction and utility applications. These models are known for their powerful performance, durable construction, and operator-friendly features. The WB140PS-2N and WB150PS-2N boast a powerful engine, providing ample power for digging, loading, and other demanding tasks. The robust hydraulic system ensures efficient operation with smooth control and precise movements. Both models are equipped with a spacious and ergonomically designed cab that provides optimal visibility and comfort for the operator. The comprehensive instrument panel and control layout contribute to easy operation and monitoring of vital functions. These backhoe loaders are built with a focus on safety and reliability. The robust design, high-quality components, and rigorous testing ensure durability and long-lasting performance. The WB140PS-2N and WB150PS-2N feature various safety features, including a rollover protection system (ROPS), a falling object protection structure (FOPS), and a comprehensive warning system. The machines are also designed for ease of maintenance, with readily accessible components and service points, reducing downtime and maximizing productivity. Their versatility and robust construction allow them to handle a wide range of tasks, from excavating trenches and loading materials to breaking up concrete and operating attachments. These models are used by a diverse clientele, including construction companies, utilities, landscaping businesses, and government agencies.