论文部分内容阅读
故障现象一辆东风日产25新天籁轿车,客户反映当其行驶速度超过60km/h时喇叭不响,已经在其他修理厂维修多次,因为是间歇性故障,一直没有修理好。故障诊断维修人员在陪客户试车时发现,实际上喇叭并非在轿车行驶速度超过60km/h以上不响,而是转向盘在正中间位置附近时喇叭不响,客户反映的情况只是其错觉而已。由于喇叭是在转向盘处于正中间位置附近时不响,根据故障现象,维修人员初步确定此故障可能是螺旋线圈(游丝)故障导致的。在进一步检查后却发现,在
Failure phenomenon A Nissan 25 new Teana sedan, the customer reflects when the driving speed exceeds 60km / h when the speaker does not ring, has been repaired in other repair shop several times, because it is intermittent failure, has not been repaired. Fault diagnosis and maintenance staff to accompany the customer test found that, in fact, the horn is not driving the car over 60km / h and above does not ring, but the steering wheel in the middle position near the speaker does not ring, the customer reflects the illusion of it just. Due to the horn is in the middle of the steering wheel is not in the middle of the ring, according to the fault phenomenon, the maintenance staff initially determined that the failure may be caused by the spiral coil (hairspring) fault. After further examination but found that in