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Industrial Lift Truck Capacity Limiting System
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1973 by SAE International in United States
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The Eaton Capacity Limiting System (CLS) was developed for use on counterbalanced lift trucks to prevent abuse of these trucks as a result of overloading. The heart of the system is a hydraulic valve termed the “overload control valve”. This valve reacts to the magnitude of the load moment acting on the truck rather than merely the magnitude of the load. The load moment is defined as the mathematical product of the force exerted by the load and the horizontal distance between the front axle centerline and the vertical projection of the load center of gravity. When the load moment exceeds a predetermined allowable magnitude, the valve prevents further lifting or forward tilting of the mast.
CitationEkstrom, G. and Young, M., "Industrial Lift Truck Capacity Limiting System," SAE Technical Paper 730833, 1973, https://doi.org/10.4271/730833.
- Young Michael R. “Industrial Truck Stability: Development of the Overload Control Valve.” Doctoral Thesis University of Detroit 1971