NF ISO 4254-13, U02-001-13 (06/2023)

This document, intended for use in conjunction with ISO 4254-1, specifies safety requirements and their verification for the design and construction of large towed, semi-mounted or mounted rotary mowers fitted with one or more elements cutting machine having a cutting circumference greater than or equal to 1,000 mm, mounted on a tractor or a power machine, intended for agricultural mowing equipment and designed for the crushing of plant residues, grass and brush by impact. It describes methods for reducing or eliminating hazards arising from normal use and reasonably foreseeable misuse of these machines by a person (the operator) during normal operation and maintenance. Additionally, it specifies the type of information the manufacturer must give about safe use practices. NOTE 1 If used in a non-agricultural activity, additional requirements not specified in this document may apply. This document does not apply to: — rotary disc mowers, rotary drum mowers and mower mulchers designed for forage harvesting which are covered by ISO 4254-12; — large rotary arm mowers; — walk-behind mowers; — lawn mowers which are covered by the ISO 5395 series. Where requirements of this document are different from those stated in ISO 4254-1, the requirements of this document take precedence over the provisions of ISO 4254-1 for machines designed and manufactured in accordance with the provisions of this document. This document does not apply to hazards related to the environment, road safety, electromagnetic compatibility, vibrations or hazards related to moving power transmission elements. It also does not apply to dangerous phenomena linked to maintenance or repair operations which must be carried out by authorized professionals. This document, used in conjunction with ISO 4254-1, addresses all significant hazards and hazardous situations and events inherent to large rotary mowers under normal use and under the conditions intended by the manufacturer. (A list of significant hazards is provided in Annex A.) NOTE 2 As an example, two illustrations of mowers (a large rigid frame rotary mower and a large trailed rotary mower with multi-section folding wings) covered by the this document are presented in Annex C, C.1. NOTE 3 As an example, illustrations of mowers not covered by this document are presented in Annex C, C.2. NOTE 4 ISO 14982 specifies test methods and acceptance criteria for the evaluation of the electromagnetic compatibility of all types of mobile agricultural equipment. This document does not apply to large rotary mowers manufactured before its date of publication by ISO.
(Automatic translation from French)