This comprehensive service, repair, and workshop manual for JLG Boom Lifts 40H and 40H+6 ANSI models (part number 3120240) provides you with the information you need to confidently maintain, service, diagnose, and repair your equipment. The manual is organized into three sections, designed to guide you through every aspect of the process. **Section 1: Specifications** lays out the detailed technical specifications for the JLG Boom Lifts 40H and 40H+6 ANSI models, providing you with a thorough understanding of the equipment's design and functionality. **Section 2: Procedures** offers step-by-step instructions and procedures for various maintenance and repair tasks. These procedures are clearly outlined and accompanied by highly detailed exploded pictures and diagrams, ensuring you can complete the tasks correctly and efficiently. **Section 3: Troubleshooting** provides a comprehensive guide to identifying and resolving any potential issues you may encounter with your JLG Boom Lift. This section is invaluable for diagnosing and rectifying problems quickly and effectively. The information presented in this manual mirrors the same information that your local JLG dealer or mechanic would use, giving you the confidence to handle your repairs and maintenance with expertise.

The JLG 40H and 40H+6 ANSI Boom Lifts, covered by the Factory Service/Repair/Workshop Manual (P/N: 3120240), are versatile and powerful aerial work platforms designed for a wide range of applications. These lifts are known for their ability to reach heights of up to 40 feet (12.2 meters) and provide a maximum working height of 46 feet (14 meters) with the optional 6 feet (1.8 meter) extension. This makes them suitable for tasks such as construction, maintenance, repair, and installation in industries like telecommunications, utilities, and manufacturing. The 40H and 40H+6 ANSI models feature a robust design with a strong lifting capacity, enabling them to handle heavy equipment and personnel with ease. They also offer a compact footprint, making them maneuverable in tight spaces and easily transportable to different locations. The JLG 40H and 40H+6 ANSI boom lifts are equipped with a variety of safety features, including an emergency stop button, load sensing capabilities, and an automatic leveling system. These features ensure the safety of operators and bystanders during operation. The lifts are powered by a reliable and fuel-efficient engine, making them cost-effective to operate. They also offer a comfortable and intuitive operator cab with excellent visibility, allowing operators to work efficiently and safely. The factory service manual (P/N: 3120240) provides comprehensive information on the operation, maintenance, and repair of these lifts. It includes detailed diagrams, troubleshooting guides, and specifications to aid in understanding and servicing these sophisticated machines. This manual is an essential resource for technicians and operators involved in the maintenance and repair of JLG 40H and 40H+6 ANSI boom lifts.