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25 xing tuo la ji gu zhang 9 ze
Pages: 28
Year: Issue:  8
Journal: Farm Machinery

Keyword:  气缸垫功率不足凸台台肩气缸盖活塞顶部进油口机油压力摇转烧瓦;
Abstract: <正>多次烧坏气缸垫1一台泰山-25拖拉机功率不足,冷却水易开锅。拆卸气缸盖,发现一缸处气缸垫烧坏。检查气缸盖平面无变形。更换一新气缸垫,用扭力扳手按规定扭矩拧紧,发动机工作一段时间后,又发生上述故障。再次拆下气缸垫检查。气缸垫在一缸处无压痕,而二缸处有压痕。用深度尺测量缸体上用来安装气缸套的凸台深度,发现一缸比二缸凸台深度约低1毫米。在一缸缸套台肩下垫上石棉线,至气缸垫两缸处压
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