This service repair manual covers the CLARK CER10, CER13, CER14, CER15, CER18, CER20, and CER25 electric forklifts. These counterbalance forklifts are designed for efficient material handling in various indoor and outdoor operating conditions. Engineered with AC electric motors and electronic control systems, they represent a commitment to reliable performance and operational excellence. The robust construction and advanced features ensure these forklifts are well-suited for demanding industrial environments, providing dependable service for material handling needs. The purpose of this manual is to provide comprehensive guidance for the maintenance, assembly, disassembly, and servicing of these CLARK electric forklifts. It details essential procedures, including recommended inspection schedules, lubrication requirements, and troubleshooting steps utilizing diagnostic codes. This resource is intended for owners, mechanics, and technicians, equipping them with the necessary technical specifications and operational knowledge to ensure the optimal performance, longevity, and safety of the equipment.