Abstract: Aiming at the problem of high position design of the pump oil gauge, which may easily cause the operator to misjudge the lubricating oil level in the bearing box, a siphon lubricating oil level indicator is selected for replacement. A siphon is added at the joint between the oil gauge and the bearing box, which can truly reflect the liquid level of lubricating oil in the bearing box. This paper introduces the whole research and development process of the new oil level indicator. The application of such new oil level indicator fundamentally solves the problem of oil rejection caused by excessive lubricating oil in the bearing box of the pump, and this provides guarantee for the smooth operation of the pump.

Key words: oil gauge position, high position design, siphon lubricating oil level indicator, siphon, oil rejection