When repairing the engine of the E512, E514 combine harvester, it is often found that the power output bearing is damaged and the bearing seat wears badly. The main reason for the damage is that the bearing is subjected to great force, but the lubricating oil is not easily retained, and most of them are thrown on the inner wall of the housing, resulting in poor lubrication. This problem can be solved by adding an oil seal on the inside of the bearing housing; drill and tap on the bearing housing partition wall, and then use a cover to fix a suitable oil seal.
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