This service repair factory manual covers the Hyster C098 series forklifts, specifically the E70XL, E80XL, E100XL, and E120XL models manufactured before SEM, up to serial number C098V06229X. These Class 1 electric motor rider forklifts are engineered for reliable performance in demanding industrial environments. The manual details the comprehensive systems of these electric forklifts, including their drive axle, steering system, hydraulic system, and mast components, providing essential information for maintaining their operational integrity. This manual serves as a definitive guide for understanding, maintaining, and repairing your Hyster forklift. It includes detailed step-by-step repair instructions, diagnostic procedures for the EV-100 motor controller, electrical checks, and maintenance schedules. The content covers a wide array of systems, from battery indicators and brake systems to lift and tilt cylinders, ensuring that owners and technicians have the necessary information to perform efficient and effective service, potentially leading to cost savings through self-repair.