204型转向架入厂检修时,发现缓解弹簧磨耗铁与制动梁拉环圆销相磨擦,影响制动和缓解作用,危及行车安全。经核对原设计图纸其间隙有7.5毫米,但是,由于组装肘的误差以及在运用中的磨耗等原因,造成两者相磨擦。为了解决缓解弹簧磨耗铁与制动梁拉环圆销相磨擦的问题。我们在两辆车(CA_(23)90573和CA_(23)90574)上进行了试改,即在 204 bogies factory inspection and found to ease the spring wear of iron and brake beam pull ring friction, affecting the braking and mitigation, endanger traffic safety. After checking the original design drawings 7.5 mm gap, however, due to the assembly of the elbow error and the wear and tear in the operation and other reasons, resulting in friction between the two. In order to solve the problem of alleviating the abrasion of the iron worn by the spring and the pulling ring of the brake beam. We tried on two cars (CA_ (23) 90573 and CA_ (23) 90574)