This manual covers the Hyster A495, also known as the W20ZA and W25ZA, a series of Class 3 Electric Motor Hand Trucks designed for efficient material handling. These trucks are engineered for reliability and performance in demanding industrial environments, featuring robust construction and advanced ZAPI controllers for precise operation. The W20ZA models offer a lifting capacity of approximately 2000 lbs, while the W25ZA models can handle up to 2500 lbs, making them versatile solutions for various warehousing and logistics needs. The purpose of this English-language service repair factory manual is to provide comprehensive guidance for the maintenance and repair of your Hyster A495 hand truck. It details procedures for critical components including the DC electric motor, master drive unit, ZAPI controllers, brake system, electrical system, and hydraulic lift cylinders and mast. The manual includes step-by-step repair instructions, electrical diagrams, fastener specifications (Metric and Inch/SAE), and information on industrial battery maintenance, ensuring that owners and technicians can effectively service and prolong the life of the equipment.