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我公司生产的ＴＹ１６５推土机的动力传动系统配备有液力变矩器和动力换挡变速器。其特点是操作舒适、启动平稳、冲击力小。变速器的常见故障如摩擦片磨损、密封圈失效等故障原因明显，且易于修复，在此不予赘述。但该机在使用２００多个小时后，出现从前进Ⅱ挡换到Ⅰ挡时动作
The power transmission system of TY165 bulldozer produced by our company is equipped with torque converter and power shift transmission. It is characterized by comfortable operation, smooth start-up and low impact. Common faults such as transmission gear wear, seal failure failure obvious reasons, and easy to repair, not repeat them here. However, the aircraft in use more than 200 hours, appeared from the forward Ⅱ block to block when the action