This comprehensive service and repair manual covers the JLG Boom Lifts 100SX, 110SX, 110SXJ, and 120SXJ ANSI models. It contains detailed instructions and illustrations for maintaining, servicing, diagnosing, and repairing these boom lifts. You'll find step-by-step procedures and highly detailed exploded diagrams to guide you through each task efficiently and accurately. This manual encompasses all repair procedures and is identical to the one used by authorized JLG dealers and mechanics. The manual is organized into six sections: **Section 1: Specifications** - Provides technical specifications for the covered models. **Section 2: General** - Covers general information, safety precautions, and troubleshooting tips. **Section 3: Chassis & Turntable** - Details the maintenance and repair procedures for the chassis, turntable, and related components. **Section 4: Boom & Platform** - Provides comprehensive coverage of the boom, platform, and associated systems. **Section 5: Hydraulics** - Offers detailed information on the hydraulic system, including components, troubleshooting, and repair procedures. **Section 6: Schematics** - Contains electrical and hydraulic schematics to aid in understanding and troubleshooting the systems.

The JLG 100SX, 110SX, 110SXJ, and 120SXJ boom lifts are versatile aerial work platforms designed for a variety of applications, including construction, maintenance, and industrial work. These models are known for their dependability, compact size, and impressive lifting capacity. The 100SX boasts a maximum working height of 33.5 feet, while the 110SX and 110SXJ reach 37.4 feet. The 120SXJ pushes the limits with a maximum working height of 40 feet. The "SX" designation signifies a standard configuration, while the "SXJ" models feature a jib arm that allows for greater reach and work envelope. All four models share a robust design featuring a powerful hydraulic system and a reliable engine. They are equipped with a spacious platform that accommodates two workers and their tools, enhancing productivity and safety. The versatility of these JLG boom lifts is further enhanced by their compact dimensions, enabling them to navigate tight spaces and operate in confined areas. The 100SX and 110SX models have a compact width, making them ideal for indoor applications or spaces with restricted access. All four models are equipped with a powerful and efficient engine, ensuring reliable performance even under demanding conditions. JLG's commitment to safety is evident in the extensive safety features incorporated into these boom lifts, including emergency stop buttons, load-sensing systems, and operator safety alarms. The factory service/repair/workshop manual (P/N: 3121105) is essential for technicians and professionals responsible for maintaining and repairing these machines. It provides detailed information on troubleshooting, maintenance procedures, and component specifications, ensuring efficient and safe operation of these JLG boom lifts.