This document pertains to the CLARK SM-606 GPX 35/40/503e, a robust forklift designed for industrial material handling applications. While specific production years are not detailed, this model is engineered for reliability and efficiency in demanding work environments. Its capacity classes range from approximately 3500 lbs to 5000 lbs, indicating its versatility for various lifting requirements. The CLARK SM-606 series is built to provide dependable performance, making it a valuable asset for businesses focused on optimizing their logistics and operational workflows. The purpose of this comprehensive Factory Service Repair Manual, coded SM-606 and presented in English, is to provide detailed guidance for the maintenance and repair of the CLARK SM-606 GPX forklift. With over 400 pages of information, it covers most repair and service issues, supporting do-it-yourself efforts and offering high cost-saving potential. This manual is an essential resource for owners, mechanics, and technicians, offering technical specifications, troubleshooting procedures, and maintenance guidelines to ensure the vehicle remains in optimal working condition.