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上海机械施工公司土方工程处的7台主要施工机械加藤 HD—400G 和 HD—400GL型液压挖掘机于1978年购入,经十多年的使用,引导轮机构相继损坏,无备件,由于进口配件价格昂贵,我土方处组织人员进行修复。我们将严重漏油的引导轮机构进行拆检后发现,其内部已严重损坏,磨损的引导轮轴孔无法安装滑动轴承和浮动油封,轮轴已磨出轴肩,安装支架、铜质滑动轴承及浮动
The seven main construction machinery of Shanghai Machinery Construction Co., Ltd.’s earthworks division, the Kato HD-400G and HD-400GL hydraulic excavators, were purchased in 1978. After more than ten years of use, the guide wheel mechanisms were successively damaged, and spare parts were not available due to imported accessories. The price is expensive. I have organized the staff to repair it. We have found that the heavily leaking guide wheel mechanism has been dismantled and found that its interior has been severely damaged. The worn guide shaft hole can not be installed with sliding bearings and floating oil seals. The axle shaft has been worn out, the mounting bracket, copper sliding bearing and floating