UL Standards & Engagement Electric Motor-Operated Hand-Held Tools, Transportable Tools and Lawn and Garden Machinery - Safety - Part 4-4: Particular Requirements for Lawn Trimmers, Lawn Edge Trimmers, Grass Trimmers, Brush ... UL 62841-4-4

This clause of Part 1 is applicable, except as follows: Addition: This document applies to hand-held and walk-behind lawn trimmers and lawn edge trimmers , used by a standing operator for cutting grass, weeds or similar soft vegetation, and grass trimmers , brush cutters and brush saws used by a standing operator for cutting grass, weeds, brush, bushes, saplings and similar vegetation. This document does not apply to - hand-held machines having a mass of 18 kg or greater; - self-propelled lawn trimmers or lawn edge trimmers ; - scissors type lawn trimmers and lawn edge trimmers ; - machines equipped with metallic cutting accessories consisting of more than one piece, e.g. pivoting chains or flail blades; - edgers with rigid and/or metallic cutting devices. NOTE 101 Freely pivoting non-metallic cutting elements are considered not to be rigid cutting devices. NOTE 102 Edgers with rigid or metal cutting devices will be covered by a future part of IEC 62841-4. NOTE 103 Annex EE provides an informative summary of characteristics for lawn trimmers , lawn edge trimmers , grass trimmers , brush cutters and brush saws . Brush cutters and brush saws covered by this document are designed only to be operated with the machine to the right of the operator.