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1.油液过多日立EX200/3型挖掘机液压泵和发动机是通过减振箱内的减振阻尼器连接的。在处理一台该型挖掘机液压系统高温故障时,发现其减振箱内油位远远超过观察油平面的螺丝处,而这些过多的油液伴随减振阻尼器运转过程中,产生大量的热量并传递到液压泵,进而导致了系统高温。
1. Too much oil The Hitachi EX200 / 3 excavator hydraulic pump and engine are connected via a vibration dampening damper inside the vibration reduction box. When dealing with the high-temperature failure of a hydraulic system of this excavator, it is found that the oil level in the vibration reduction box far exceeds the screw at the observation oil plane, and these excessive amounts of oil are accompanied by a large amount of vibration damping damper during operation Of the heat and passed to the hydraulic pump, which led to the system high temperature.