1台TY160型推土机使用过程中出现变矩器输出轴油封漏油故障,该故障排除后的第二天又出现变矩器输出轴油封漏油故障,且出现挂挡后无法行走故障。分析认为,变矩器输出轴油封漏油,应考虑该处油封损坏问题,但具体故障原因还需通过排查方可确认。而挂挡无法行走故障,则需排查变速装置。为此,我们对该故障进行了以下排查。首先,启动柴油机,经观察确定变矩器输出轴油封漏油。拆下变矩器输出轴和法兰盘,取下该油封,发现其已经变形。更换新油封后 A Taiwan TY160-type bulldozers appear during the use of the torque converter output shaft oil seal leakage fault, the fault the second day after the emergence of torque converter output shaft oil seal leakage failure, and the emergence of the gear can not walk after failure. Analysis, the torque converter output shaft oil seal leakage should be considered where the oil seal damage, but the specific cause of the malfunction also need to be confirmed before troubleshooting. The hanging block can not walk fault, you need to investigate the transmission device. To this end, we conducted the following troubleshooting of the fault. First of all, start the diesel engine, the oil leakage of the output shaft seal of the torque converter is confirmed by observation. Remove the torque converter output shaft and flange, remove the oil seal and found it has been deformed. After replacing the new oil seal