Description
This small, flexible part sits inside the exhaust silencer of your Busch pump. Think of it as a tiny, busy door for the exhaust air.
When your pump runs, air is pushed out. The membrane opens and closes very quickly with each puff of air. This action breaks up the sound, making the exhaust much quieter.
It also does another important job. The exhaust air can carry a fine, oily mist. The membrane helps to catch this mist. This keeps it from leaving the pump and settling on your tools and workspace.
Over time, the constant flexing and exposure to oil can make the membrane brittle or torn. When this happens, the noise comes back and more oil mist escapes.
Replacing this part is a quick and easy fix. It is one of the simplest ways to make your pump quieter and your area cleaner
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