This manual covers the Hyster A477 (T7Z) Class 3 Electric Motor Hand Truck, a robust piece of industrial equipment designed for efficient material handling. Engineered for reliability and performance, this electric hand truck is built to withstand demanding operational environments. Its design focuses on providing operators with intuitive control and dependable functionality for a wide range of lifting and transport tasks. The purpose of this comprehensive Service Repair Factory Manual is to provide detailed information for the maintenance and repair of your Hyster A477 (T7Z) hand truck. It includes in-depth coverage of critical systems such as the Brakes, Electrical System, Frame, Lifting Mechanism, Master Drive Unit, and Steering Mechanism, along with specific components like the Curtis 1297 Transistor Motor Controller, DC Motor, and Industrial Battery. This manual offers essential guidance on periodic maintenance, troubleshooting procedures utilizing the ETACC program, and technical specifications, ensuring optimal performance and longevity of the equipment.