This Service Repair Manual covers the Clark PT-5, PT-7, PTT-5, and PTT-7 Forklift models. These forklifts are engineered for demanding industrial applications, offering robust performance and reliability. Their design prioritizes efficient operation for tasks such as maintaining, assembly, disassembly, and servicing in various work environments. The manual provides comprehensive information to ensure these machines operate at peak performance. This manual serves as an essential resource for owners, technicians, and mechanics. It details planned maintenance programs, adjustments, drive tire replacement, and load wheel placement. Furthermore, it includes extensive information on the electrical system, including EV-100 operation and the master control switch, as well as transmission system components. With actual real photo illustrations and schemes, this English-language manual, spanning 84 pages, is designed to facilitate thorough understanding and execution of all maintenance and repair procedures.