农机具不同精密程度的零部件，需采用不同的方法除锈。①气缸、活塞、滚珠轴承、齿轮导轨、传动轴以及主轴等加工精度在二级以上的精密零部件的工作面与配合面，可用硬竹片、木片、“００”号砂布等除锈。机具上的红黄色锈必须除掉，表面要磨光滑，但为了保持原有精密度，可以 Agricultural machinery with different precision parts, the need for a different method of rust. ① Cylinder, piston, ball bearing, gear guide, drive shaft and spindle and other precision machining parts in two or more working surfaces and mating surface, available hard bamboo, wood, “00” emery cloth and other rust. Red and yellow rust on the tool must be removed, the surface should be smooth, but in order to maintain the original precision, you can