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1 故障现象有1台ZL45A型装载机,在一次施工中转向系统突然出现了以下现象:当发动机刚启动、机油油温比较低的时候,转向一切正常,而机油油温达到80℃以上时转向失灵;发动机熄火以后,转向盘可整圈转动(正常自由行程为左右旋转8°),但转
A failure phenomenon A ZL45A type loader, a construction steering system suddenly appeared the following phenomenon: When the engine just started, when the oil temperature is relatively low, turn to all the normal, and when the oil temperature reached above 80 ℃ steering Failure; engine flameout, the steering wheel can rotate the entire circle (normal free-wheel rotation for about 8 °), but the turn