设备检修实践告诉我们,每台设备由于实际运行状态、加工制造质量、作业对象、保养维护情况及操作者的技术水平诸因素之差别,即使是同种设备,而各台设备的零部件使用寿命却各不相同。因此,以时间为基础的定期维修制往往产生过剩维修,并造成设备精度降低,性能技术指标劣化,工时和备件消耗增加。 Equipment maintenance practice tells us that each device due to the actual operational status, manufacturing quality, operations, maintenance and operator of the technical level of the difference between the various factors, even if the same equipment, and spare parts life of each device But different. As a result, the time-based periodic maintenance system tends to over-repair and result in lower equipment accuracy, deteriorated performance specifications, and increased man-hours and spare parts consumption.