本文件拟与ISO？4254-1一起使用，规定了以下类型的根部作物收获机牵引、安装或自推进的设计和建造的安全要求及其验证: -？筛分收割机， -？拔根收割机， -？顶部提升收割机， 进行以下一项以上的操作:运输/叶面、挖掘/接收/提升、清洁、运输和卸载根茎作物。 本文件也适用于单独使用的茎秆/叶面。 本文件不适用于在甜菜堆上作业的清洁装载机。对于这些类型的机器，本文件目前未涉及其他危险。 此外，它还规定了制造商提供的安全工作实践信息的类型。 本文件中涉及的重大危险清单见附件A。它还指出了尚未处理的危险。 本文件未考虑环境因素。本文件部分考虑了噪音。 本文件主要适用于出版日期后制造的机器。

This document, intended to be used together with ISO？4254-1, specifies the safety requirements and their verification for the design and construction of the following types of root crop harvesting machines trailed, mounted or self-propelled: —？sieving harvesters, —？root lifting harvesters, —？top lifting harvesters, which carry out more than one of the following operations: haulm/leaf topping, digging/taking-in/lifting, cleaning, conveying and unloading of root crops. This document is also applicable for haulm/leaf toppers used individually. This document is not applicable to cleaner-loaders which operate from a heap of beet. For these type of machines, additional hazards are, at present, not dealt with in this document. In addition, it specifies the type of information on safe working practices to be provided by the manufacturer. The list of significant hazards covered in this document is given in Annex？A. It also indicates the hazards which have not been dealt with. Environmental aspects have not been considered in this document. Noise has been considered partly in this document. This document applies primarily to machines which are manufactured after the date of its publication.