1.启动后行走异常我公司1台SD9型高驱动推土机,在低湿状况启动发动机进行作业时,出现I挡小油门时不行走,中油门时自动向右转向(未操纵转向拉杆)故障。分析认为,该推土机在I挡小油门时,由于转向离合器未能结合,发动机所提供的动力不足以克服转向阻力,因此造成I挡小油门不行走。随着发动机转速的提高,其提供的动力也逐渐增 1. Walking abnormality after start-up One SD9 high-powered bulldozer of our company, when starting the engine in low-humidity condition, does not walk when there is a small throttle in the middle of the throttle, and turns to the right (untied steering rod) when the throttle is on. Analysis, the bulldozer in the I block a small throttle, the steering clutch failed to combine, the engine provides power not enough to overcome the steering resistance, resulting in I block small throttle not to walk. As the engine speed increases, it provides the power gradually increased