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nong ji wei xiu zhong de yi wai qing kuang ji fang fan cuo shi
Author(s): 
Pages: 92
Year: Issue:  10
Journal: Farm Machinery Using & Maintenance

Abstract: 本文所称的"意外情况",是指农机维修中不经常发生的、意想不到的情况或者后果.这种意外情况的发生,往往是维修人员无意之中造成的.因此,农机维修人员应当采取小心谨慎、如履薄冰的态度,充分考虑到维修中意外情况发生的可能性,并且采取严密的防范措施. 1.无意的虚假装配 下面举4个例子加以说明. (1)气缸盖螺母.在安装发动机的气缸盖时,如果气缸盖螺栓、螺母清洗不干净,留有积碳或锈斑,这些未予清除的杂质将额外增加拧紧时的阻力,在扭力扳手上形成虚假的读数,因而造成气缸盖不能有效地压紧气缸垫,致使气缸漏气或者冲坏气缸垫.
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