This manual covers the Hyster D098 series of Class 1 Electric Motor Rider forklifts, including specific models such as the E3.50XL, E4.00XL, E4.50XL, E5.50XL, and the E4.50XLS (Europe). These electric forklifts, designed for material handling applications, offer lift capacities ranging from approximately 3.5 to 5.5 tons. They are engineered with robust electric drive systems, featuring speed reducers and differentials, and incorporate reliable lift mechanisms with cylinders and masts, all supported by a sturdy frame structure. The focus on electric power and durable components underscores their suitability for demanding operational environments. The purpose of this comprehensive Service Repair Factory Manual is to provide detailed guidance for the maintenance and repair of your Hyster forklift. It covers essential areas including periodic maintenance schedules, in-depth troubleshooting procedures with step-by-step repair instructions, and critical technical specifications for systems such as the brake system, drive axle, steering axle, and manual hydraulic control valve. With included diagrams and part number cross-referencing, this manual empowers owners and technicians to effectively service and maintain these machines, ensuring optimal performance and longevity while facilitating self-repair and cost savings.