一台ZL40装载机在使用中发现,动臂缸和转斗缸工作缓慢、举升无力,举升时间达15 s以上(该机动臂缸举升的标准时间应为7 s)。在这种情况下,应根据液压系统原理图逐项进行分析、排查。 A ZL40 loader was found to be in use with a slow boom lift and bucket cylinder that failed to lift for as long as 15 seconds (the standard lift for this boom cylinder should be 7 seconds). In this case, should be based on the hydraulic system schematic analysis and troubleshooting.