scope:

This part of ISO 4254, intended to be used together with ISO 4254-1:____, specifies the safety requirements and their verification for the design and construction of flail-mowers with horizontal axis for agriculture, rotary disc mowers, rotary drum mower, mounted, semi-mounted, trailed or self-propelled as used for forage crop harvesting in agriculture only. It describes methods for the elimination or reduction of hazards arising from the intended use of these machines by one person (the operator) in the course of normal operation and service. In addition, it specifies the type of information on safe working practices to be provided by the manufacturer.
When provisions of this part of ISO 4254 are different from those which are stated in ISO 4254-1:____ the provisions of this part of ISO 4254 take precedence over the provisions of ISO 4254-1:____ for machines that have been designed and built according the provisions of this part of ISO 4254.
This part of ISO 4254, taken together with ISO 4254-1:____, deals with all the significant hazards, hazardous situations and events relevant to this agricultural machinery used as intended and under the conditions foreseen by the manufacturer (see Clause 4).
This standard is also applicable to mowers equipped with a conditioning device.
This standard applies only to mowers intended to work at ground level.
NOTE 1 Examples of such machines are given in Annex A.1.
It does not apply to:
. mowers with an articulated arm,
NOTE 2 An example of such a machine is given in Annex A.2.
. mowers with one or more vertical axis designed for mulching,
NOTE 3 An example of such a machine is given in Annex A.2.
. pedestrian-controlled motor mowers,
. lawn mowers or machines designed as lawn mowers,
. inter-row mowing units,
. machines specifically designed for highway and road maintenance.
This part of ISO 4254 is also not applicable to environmental hazards, road safety, electromagnetic
compatibility, vibration and hazards related to moving parts for power transmission. It is not applicable to hazards related to maintenance or repairs to be carried out by professional service personnel.
NOTE 4 ISO 14982 specifies test methods and acceptance criteria for evaluating the electromagnetic compatibility of all kind of mobile agricultural machinery.
This part of ISO 4254 is not applicable to rotary disc and drum mowers and flail-mowers which are
manufactured before the date of its publication.