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概述 工程机械的维修是为了保持或恢复原有功能而采取的技术管理措施，维修的主要任务是通过控制各种影响因素，使机械设备的可靠性保持在一定的水平上。 机械维修可分为恢复性维修和预防性维修两种。恢复性维修是把失效的产品恢复到规定的技术状态所进行的维修活动；预防性维
Overview The maintenance of construction machinery is to maintain or restore the original function of the technical management measures taken to maintain the main task is to control a variety of influencing factors to maintain the reliability of mechanical equipment at a certain level. Mechanical maintenance can be divided into two kinds of recovery and preventive maintenance. Restorative maintenance is the maintenance activity that restores a failed product to its defined state of technology. Preventive maintenance