Preface 

This is the harmonized CSA Group and UL standard for 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 Cutters and Brush Saws . It is the First edition of CSA C22.2 No. 62841-4-4, and the First edition of UL 62841-4-4. This harmonized standard is based on IEC Publication 62841-4-4: First edition, 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 Cutters and Brush Saws issued November 2020. IEC publication 62841-4-4 is copyrighted by the IEC. This harmonized standard was prepared by CSA Group and Underwriters Laboratories Inc. (UL). The efforts and support of the International Harmonization Committee (IHC) for the adoption of the IEC series of Standards for Hand-Held, Motor-Operated, and Transportable Tools and Lawn and Garden Machinery UL are gratefully acknowledged. This standard is considered suitable for use for conformity assessment within the stated scope of the standard. 

This standard was reviewed by the CSA Subcommittee on Safety of Hand-Held Motor-Operated Electric Tools, under the jurisdiction of the CSA Technical Committee on Consumer and Commercial Products and the CSA Strategic Steering Committee on Requirements for Electrical Safety, and has been formally approved by the CSA Technical Committee. This standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group. 

Scope 

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.