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Replying to message 38012
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Darryl Keil

Posts: 1454

Joined: 2003-05-22
Location: Maine

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Subject : RE: pump maintenance
Posted : 2022-04-22 2:09 PM
Post #38012 - In reply to #38011
You have a bit of a vane lock, most likely. You need to open the vacuum chamber and sand all the surfaces as well as take out the vanes and sand in the slats with 400 grit sandpaper no oil, just dry


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