Here are a couple of documents we have on operating and maintaining the pump. Click on the link to open the corresponding document in a new tab.
If you cannot find the information that you are seeking in this documentation, then it may be worth reaching out to Becker with further questions or for replacement parts. ShopBot Tools Technical Support may also be able to answer your questions and can be reached at Support@ShopBotTools.com
Here is the Website and Contact information for Becker. They are usually very responsive.

