This comprehensive service and repair manual is designed for the JLG Compact Crawler Booms X14JH, X14J-X390AJ, X17J, X19J-X550AJ, X23J-X700AJ Global models. It provides detailed instructions and illustrations to guide you through every step of maintenance and repair procedures. The manual includes a wealth of information, organized into clear, easy-to-follow sections. **Section A - Introduction - Maintenance Safety Precautions:** This section lays the groundwork for safe and effective work on your JLG Compact Crawler Boom. It covers essential safety practices and precautions to ensure your well-being during any service or repair operation. **Section 1 Specifications:** This section provides complete technical specifications for your JLG Compact Crawler Boom, including dimensions, weights, capacities, and other critical data. This information is essential for understanding the machine's capabilities and for making informed decisions during maintenance and repair. **Section 2 General:** This section delivers a comprehensive overview of the JLG Compact Crawler Boom, covering its design, operation, and key features. It provides a foundational understanding of the machine's systems and components. **Section 3 - Chassis & Turntable:** This section focuses on the chassis and turntable components, offering detailed information on their operation, maintenance, and repair. You'll find comprehensive guidance on troubleshooting, disassembling, and reassembling these crucial elements of your JLG Compact Crawler Boom. **Section 4 - Boom & Platform:** This section delves into the boom and platform systems, providing comprehensive instructions on their operation, maintenance, and repair. You'll find detailed information on troubleshooting, disassembling, and reassembling these essential components, ensuring safe and efficient operation. **Section 5 Hydraulics:** This section covers the hydraulic systems of your JLG Compact Crawler Boom, offering detailed information on their operation, maintenance, and repair. You'll find comprehensive guidance on troubleshooting, disassembling, and reassembling these essential components, ensuring proper fluid flow and system functionality. **Section 6 - JLG Control System:** This section provides detailed information on the control system of your JLG Compact Crawler Boom, covering its operation, troubleshooting, and repair. It offers a thorough understanding of how the control system operates and how to address any issues that may arise. **Section 7 - Basic Electrical Information & Schematics:** This section delves into the electrical system of your JLG Compact Crawler Boom, providing essential information on its operation and maintenance. You'll find comprehensive schematics and detailed instructions to assist with troubleshooting and repairs related to the electrical components. This manual is a valuable resource for both experienced mechanics and do-it-yourself enthusiasts, offering the detailed information and guidance needed to keep your JLG Compact Crawler Boom operating smoothly and safely.

The JLG Compact Crawler Booms X14JH, X14J-X390AJ, X17J, X19J-X550AJ, and X23J-X700AJ are a series of versatile and robust aerial work platforms designed for demanding applications. These machines are characterized by their compact footprint, high maneuverability, and impressive lifting capacity. The crawler tracks provide exceptional stability and traction on various terrains, allowing operators to access challenging work areas. The booms are equipped with a variety of features that enhance safety and efficiency, including a fully proportional control system, a load sensing hydraulic system, and an intuitive control panel. The X14JH, X14J-X390AJ, X17J, X19J-X550AJ, and X23J-X700AJ differ in their working height and outreach capabilities, providing operators with a range of options to suit their specific needs. These JLG compact crawler booms are ideal for a wide range of tasks, including maintenance and repairs, construction and building, infrastructure projects, and industrial applications. Their ability to navigate tight spaces, traverse uneven terrain, and reach elevated working positions makes them an invaluable asset in various industries. The X14JH offers a working height of 45 feet and an outreach of 29 feet, while the X14J-X390AJ extends to a working height of 39 feet with a 29-foot outreach. The X17J model boasts a working height of 54 feet and a 33-foot outreach, while the X19J-X550AJ reaches a height of 55 feet with a 44-foot outreach. The X23J-X700AJ, the largest in the series, provides a working height of 70 feet and an outreach of 54 feet. With their compact design, high performance, and versatility, the JLG Compact Crawler Booms represent a reliable and efficient solution for various aerial work operations.