The Hyster D174 (R30XMS2) is a Class 2 Electric Motor Narrow Aisle Truck designed for efficient material handling. Engineered with a DC electric motor and a Curtis transistor motor controller, this vehicle offers reliable performance in demanding industrial environments. Its robust construction, including covered frame, hydraulic system, electrical system, and lifting mechanisms, ensures durability and operational longevity. The integrated master drive unit and electric brake system contribute to its advanced functionality, making it a dependable choice for various warehousing and logistics applications. This comprehensive Service Repair Factory Manual provides essential information for maintaining and repairing your Hyster D174 (R30XMS2) truck. It covers critical areas such as periodic maintenance, electrical systems, hydraulic systems, lifting mechanisms, steering, and braking. Detailed procedures, technical specifications, and diagnostic information are included to assist owners and technicians. With easy-to-follow, step-by-step instructions and included diagrams, this manual is designed to facilitate straightforward repairs and ensure optimal vehicle performance and safety.