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故障现象曾有几台PC7105挖掘机先后在1400~1800h工作范围内就出现回转制动失灵的故障,当时的情况是,发动机仍在运转,在回转锁紧开关已置于接通(ON)位后,若操作回转控制杆,转台仍可回转。2回转制动控制原理该机的回转制动原理见附图。当回...
▲ After the ON) position, if the swing lever is operated, the turntable can still rotate. 2 Rotary braking control principle The principle of rotary braking of this machine is shown in the attached drawing. When back...