This manual covers Hyster forklifts, specifically models D098 including the E3.50XL, E4.00XL, E4.50XLXLS, and E5.50XL Europe variants. These robust machines are designed for demanding industrial environments, featuring powerful internal combustion engines running on LPG or efficient electric motors. Key components include a sturdy chassis frame, a counterweight for stability, an operator's cab with an overhead guard for safety, and a sophisticated lifting system comprising a mast, carriage, and tilt cylinders. The transmission utilizes a three-speed PS Trans / Autoshift Transmission Controller, and the braking, steering, and cooling systems are engineered for reliable performance. This comprehensive service shop manual provides essential information for maintaining and repairing these Hyster forklifts. It details periodic maintenance procedures, critical capacities, and technical specifications, supported by numerous illustrations, diagrams, and photos. The manual covers various systems, including the electrical system with its alternator, starter, high energy ignition, and instrument panel components, as well as common attachments such as sideshifters and carton clamps. It also addresses fastener standards, covering both Inch (SAE) and Metric types, ensuring technicians have the knowledge to perform accurate and efficient service.