This comprehensive manual provides detailed information on maintaining, assembling, disassembling, and servicing your Komatsu WA320-3 & WA320-3 Custom Wheel Loader. It is designed to guide you through effective, economical, and safe machine operation and maintenance, helping you achieve peak performance.

The manual is divided into two sections:

**Service Repair Manual:** This section covers a range of topics, including:

* **General Information:** Provides an overview of the machine's design and operation.
* **Structure and Function:** Explains the layout and operation of each component.
* **Testing and Adjusting:** Outlines procedures for evaluating and adjusting machine performance.
* **Disassembly and Assembly:** Offers step-by-step instructions for taking apart and putting back together various components.
* **Maintenance Standards:** Details recommended maintenance practices and procedures.
* **Additional Information:** Includes supplementary data and resources.

**Operation & Maintenance Manual:** This section focuses on the practical aspects of operating and maintaining your wheel loader. It covers:

* **Safety Information:** Emphasizes critical safety precautions for operating and maintaining the machine.
* **Introduction:** Provides an overview of the machine's features and functionality.
* **Machine Location and Identification:** Explains how to locate identification plates and enter serial numbers.
* **General Precautions:** Offers general safety guidelines for all operations.
* **Precautions During Operation:** Highlights specific safety considerations for operating the machine.
* **Precautions for Maintenance:** Provides important safety guidelines for all maintenance tasks.
* **Safety Label Placement:** Illustrates the correct locations for safety labels.
* **General View:** Presents a complete overview of the machine.
* **Component Explanations:** Provides detailed descriptions of each component.
* **Operation Procedures:** Offers step-by-step guidance on operating the machine.
* **Transportation:** Includes instructions for transporting the loader safely.
* **Cold Weather Operation:** Provides tips for operating the machine in cold temperatures.
* **Long-Term Storage:** Offers guidance on storing the loader for extended periods.
* **Troubleshooting:** Provides a guide to identify and resolve common issues.
* **Maintenance Guides:** Offers an overview of essential maintenance tasks.
* **Service Outlines:** Provides a detailed outline of routine maintenance procedures.
* **Wear Parts List:** Lists consumable parts and their replacement intervals.
* **Fuel, Coolant, and Lubricant Recommendations:** Provides guidance on selecting the appropriate fluids based on ambient temperatures.
* **Standard Tightening Torques:** Lists recommended tightening torques for bolts and nuts.
* **Safety Critical Part Replacement:** Specifies the recommended intervals for replacing critical safety parts.
* **Maintenance Schedule Chart:** Provides a comprehensive schedule for routine maintenance tasks.
* **Service Procedures:** Includes detailed instructions for performing various maintenance procedures.
* **Specifications:** Lists key technical specifications for the machine.
* **Optional Parts and Attachments:** Describes available options and attachments.
* **Bucket and Tire Selection:** Provides guidance on choosing the right buckets and tires for specific applications.
* **Car Radio:** Offers information on the optional car radio system.
* **Air Conditioner:** Provides details about the optional air conditioning system.
* **Electronic Controlled Suspension System (E.C.S.S.):** Explains the operation and maintenance of the optional electronic suspension system.
* **Auto-Greasing System:** Provides information on the optional auto-greasing system.
* **Option Display:** Offers details about the optional display system.
* **Auto-Leveling and Remote Positioner:** Explains the operation and maintenance of the optional auto-leveling and remote positioner systems.

This manual provides extensive information covering all aspects of maintaining, operating, and troubleshooting your Komatsu WA320-3 & WA320-3 Custom Wheel Loader, ensuring you have the resources needed for safe and efficient operation.

The Komatsu WA320-3 & WA320-3 Custom wheel loader is a robust and versatile piece of heavy machinery designed for demanding material handling applications. This model, with serial numbers 50001 and up, builds upon the success of its predecessors with powerful performance and improved operator comfort. Equipped with a Komatsu SAA6D107E-3 engine, the WA320-3 delivers a raw power output of 162 kW (217 hp) at 1900 rpm, ensuring efficient material handling across various industries. The loader boasts a generous operating weight of 21,200 kg and a maximum lifting capacity of 10,500 kg, enabling it to tackle heavy loads with ease.

Key features include a durable and spacious operator cab designed to minimize noise and vibration for enhanced comfort and productivity. The WA320-3 adopts a comprehensive hydraulic system that ensures precise and responsive control over the loader's movements, crucial for accurate material placement and efficient operation. The machine also benefits from a robust construction, incorporating high-quality components and materials to ensure longevity and minimize downtime. The WA320-3 is a versatile machine with various optional configurations, including specialized attachments and custom modifications, tailored to meet specific application requirements. The "Custom" designation refers to these customizable features, allowing the WA320-3 to be adapted to a wide range of industries, including construction, mining, and forestry, while providing the flexibility to seamlessly integrate with existing infrastructure and operations.