在不改变原机性能与寿命的前提下，用国产件代替进口件，不仅降低维修成本，而且还可做到快速修复、保证工期。我局在大河砼面板堆石坝施工中，采用卡特彼勒公司９５０Ｅ型装载机牵引ＺＹ１８Ｔ拖式振动碾，由于连接拖式振动碾的保险销断裂脱落，导致振动碾的牵引架撞在了装载 Without changing the performance and life of the original machine under the premise of using domestic-made parts instead of imported parts, not only reduce maintenance costs, but also can be quickly repaired to ensure the project duration. In our construction of the concrete concrete faced rockfill dam, the Caterpillar 950E Loader was used to pull the ZY18T trailing vibration roller. As the safety pin of the trailing vibration roller broke off, the traction roller of the vibration roller crashed into the load