I have a couple questions about gast pumps. I'm looking at buying a 1550 for my small Bush. Specifically this one:
https://www.ebay.com/itm/Gast-Oil-le...cAAOSwAQBauWN9
It looks like this one is configured as a "compressor" rather than a vacuum pump. After looking at the gast site it looks like the only difference I see is the vacuum pump comes with different filter and a muffler. Can they be used in either configuration?
Also, this pump is rated at 1440rpm. I would think that is just for 50hz motors. The bearing and rebuild kit is the same for every 1550. Would it be alright to just run it at 1725 rpms?
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Screenshot_20200114-071001.jpg
Thanks for any help.