prEN 474的这一部分涉及与EN ISO 6165:2012中定义的轮式和履带式反铲装载机相关的所有重大危险，危险情况和事件。 此部分还涉及叉应用，起重操作和日志处理。 本部分的要求是对prEN 474-1:2017中制定的共同要求的补充。 这并不重复prEN 474-1:2017的要求，但增加或替代了反铲装载机的应用要求。 本欧洲标准涉及所有重大危险，危险情况和与土方机械有关的事件，在预见的条件下使用，但也考虑到任何合理的可预见的滥用（见第4条）。本欧洲标准规定了适当的技术措施，以减少机器整个可预见的生命周期中重大危险，危险情况和事件引起的风险。 本欧洲标准不适用于CEN颁布本欧洲标准之日前制造的机械。 注意对于在公共道路上行驶，适用国家交通规则（例如制动，转向，照明，牵引等），直到达成协调一致的要求

This document together with EN 474 1:2022 deals with all significant hazards, hazardous situations and events relevant to backhoe loaders when used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer (see Annex A) associated with the whole lifetime of the machine as described in EN ISO 12100:2010, 5.4. The requirements of this document are complementary to the common requirements formulated in EN 474 1:2022. This document does not repeat the requirements of EN 474 1:2022 but supplements or modifies the requirements for backhoe loaders. This document does not provide requirements for main electrical circuits and drives of machinery when the primary source of energy is an external electrical supply. This document does not provide performance requirements for safety related functions of control system(s). This document does not deal with demolition machinery. This document also deals with fork application, log handling application and lifting operation application. This document is not applicable to backhoe loaders which are manufactured before the date of publication of this document by CEN.