单斗液压挖掘机试制的新产品均需按部标准JB2405—79和样机试验大纲等测试各项性能指标,为技术鉴定和批量生产提供实测数据。进行整机性能测试前,必须按规定完成样机主要零部件的台架试验。整机试验场地,应符合部标准JB2405—79中第(二)项第8条的要求。 The new products produced by the single-bucket hydraulic excavator are required to test various performance indexes according to department standards JB2405-79 and prototype test program, and provide actual measurement data for technical appraisal and mass production. Before the performance test of the whole machine, the bench test of the main parts of the prototype must be completed according to the regulations. The whole test site shall comply with the requirements of item 8 of item (b) of JB2405-79.