This workshop service repair manual covers the Clark ESX 12-25 forklift, part of the ESX250 series. Engineered for reliability and efficiency, this forklift is designed to meet the demanding needs of various industrial applications. Its robust construction and advanced electrical system, featuring ZAPI handset control, ensure optimal performance and longevity. This manual is intended for users who prioritize maintaining their equipment to the highest standards, offering insights into its operational capabilities and specialized components. The purpose of this comprehensive English-language manual is to provide detailed guidance for the maintenance, repair, and troubleshooting of the Clark ESX 12-25 forklift. It includes in-depth information on the electrical system, motor overhauls, control system programming, and diagnostic procedures. Technical specifications, electrical service tips, and sequences of operation are also covered. This resource is invaluable for do-it-yourselfers and technicians alike, enabling them to perform service and maintenance effectively, thereby maximizing operational uptime and reducing repair costs.