This manual covers the Clark NPR 17 and NPR 20 models, part of the NPR345 series. These vehicles are engineered for reliability and performance, offering robust solutions for various operational needs. While specific production years are not detailed, the engineering quality and unique selling points of the Clark brand are evident in their durable construction and efficient design, ensuring dependable service in demanding environments. This Factory Service/Repair/Workshop Manual, coded SM-345 and written in English, provides comprehensive guidance for maintaining and repairing your Clark vehicle. It details planned maintenance procedures, lubrication charts, and easy reference for lubricants. The manual thoroughly covers the electrical system, including battery service, motor voltages, control handle switches, contactors, and detailed diagnostics with status codes. Furthermore, it includes extensive information on the chassis, braking system, hydraulic system with specific schematics and overhaul procedures for pumps and cylinders, and the lift system, ensuring all aspects of the vehicle are addressed for optimal performance and longevity.