Description
These vanes spin to create the vacuum. To work right, they need to press firmly against the inside wall of the pump chamber.
That’s where this little split spring comes in. Think of it like a tiny, super-strong C-clip.
Its job is to push. It fits around the vane and provides constant, steady tension. This tension keeps the vane in the right position, ensuring a good seal as it spins.
Without enough tension from the spring, the vane can’t seal properly. This leads to a weak vacuum, poor performance, and can even cause internal damage over time.
Springs lose their strength after years of use. It’s normal wear and tear. Replacing them is a standard part of rebuilding or maintaining these pumps.
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