This manual covers the STILL EK12N, an electric counterbalanced forklift truck designed for warehouse and industrial material handling. Built with the engineering quality and reliability characteristic of STILL, this model offers a nominal load capacity of 1.2 tons (1200 kg) and features an electric drive system, advanced electronic controls including the Optispeed system, and wire guidance capabilities. Its robust construction and focus on operational efficiency make it a dependable choice for demanding environments. The purpose of this comprehensive factory service and repair manual is to provide detailed guidance for the maintenance, diagnosis, and repair of the STILL EK12N. It covers essential systems such as the travel drive, steering, brake, hydraulic, and electrical systems, along with the slide carriage and wire guidance. The manual includes step-by-step procedures for disassembly and reassembly, troubleshooting guides, error code interpretation, and information on using the Servicesoftware for onboard diagnostics. This resource is intended for dealerships, independent repair shops, fleet maintenance personnel, and knowledgeable end-users seeking to ensure optimal performance and longevity of their equipment.