This comprehensive Service Repair Manual provides in-depth information on maintaining, assembling, disassembling, and servicing your Hyundai HL720-3 Wheel Loader. It covers a wide range of topics, ensuring you have access to detailed information for every aspect of your machine. The manual is organized into sections covering key areas, including: **General:** This section covers safety hints, specifications, and an operation checkout record sheet, providing a foundation for safe and efficient operation of your loader. **Engine:** Explore the structure and function of the engine, gaining a thorough understanding of its components and operation. **Power Train System:** This section delves into the structure and function of your wheel loader's power train system. It also includes operational checks, troubleshooting guides, test and adjustment procedures, and detailed disassembly and assembly instructions. **Brake System:** Learn about the brake system's structure and function, and find guidance on operational checks, troubleshooting, test and adjustment procedures, and disassembly and assembly instructions. **Steering System:** This section comprehensively explains the steering system's structure and function, along with operational checks, troubleshooting, test and adjustment procedures, and disassembly and assembly instructions. **Work Equipment:** Discover the structure and function of your wheel loader's work equipment, including operational checks, troubleshooting, test and adjustment procedures, and disassembly and assembly instructions. **Electrical System:** This section covers component location, electrical circuits, monitoring systems, electrical component specifications, connectors, and troubleshooting techniques. This manual is a valuable resource for anyone who owns or operates a Hyundai HL720-3 Wheel Loader. It provides the information you need to confidently maintain and repair your machine, minimizing downtime and maximizing its performance.

The Hyundai HL720-3 Wheel Loader is a robust and versatile machine designed for heavy-duty construction, mining, and material handling applications. This 21-ton class loader boasts a powerful engine, a spacious operator cabin, and a wide range of attachments to tackle various tasks. The HL720-3 is powered by a Cummins QSB6.7 engine, delivering impressive performance and fuel efficiency. Its ZF planetary transmission ensures smooth and efficient power transfer to the wheels, while the robust axles and hydraulic system provide exceptional traction and lifting capacity. The loader's ergonomic design prioritizes operator comfort and safety, featuring a spacious cab with adjustable seat, controls, and an intuitive dashboard. Equipped with a comprehensive safety system, including a ROPS/FOPS certified cab, the HL720-3 provides a secure working environment for the operator. Further enhancing its versatility, the HL720-3 accepts a wide range of attachments, including buckets, forks, and specialized tools. This allows operators to customize the machine for various tasks, such as loading and unloading materials, digging, and landscaping. The HL720-3's advanced hydraulic system ensures precise control and efficient operation of these attachments. Notably, the loader's robust construction and durable components make it an ideal choice for demanding environments and long-term operation. Hyundai's commitment to quality and reliability is evident in the HL720-3, making it a sought-after machine for professionals in the construction and mining industries. With its impressive power, versatility, and operator-centric features, the HL720-3 stands as a testament to Hyundai's engineering excellence in the heavy-duty equipment sector.