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Re: First ever Turbo experience

Posted: Fri Oct 11, 2019 7:16 am
by Richard Hull
Again I want to thank all who have shared their specific knowledge related to turbo pump intricacies. I have read a bit, I have listened to others a lot through past posts and received information on my specific case. I now consider myself well informed on turbo pumps, but until I have the laying upon of the hands, I will not be more than just informed or well read. The real useful learning adventure lay ahead. I realize this is not rocket science, but it is a process. A process that makes complete the reading, the wise advice and mentoring which with the active use and operation turns it into true ownership of knowledge.

This is what all these forums and FAQs are about...Open source sharing, teaching and learning. Still they mean little until put into practice. As I progress in the installation and application of my turbo, I will keep this thread informed.

Once again I quote from Frances Bacon's famous essays; the one called "of Studies". Remember, these are written in the style of English prose in use in the 14th century. Until you get used to Bacon's complex prose the going can be tough in many of his essays.

"To spend too much time in studies is sloth; to use them too much for ornament is affectation; to make judgement wholly by there rules is the humor of the scholar. They perfect nature and are perfected by experience. Crafty men contemn studies, simple men admire them, wise men use them; for they teach not their own use; but that there is wisdom without them and above them, won by observation."

Richard Hull

Re: First ever Turbo experience

Posted: Sat Oct 12, 2019 1:34 am
by Bob Reite
My turbo also has hose barbs. It can be either water cooled or air cooled. The packaged unit holding my turbo has a 60 CFM (as I recall) "muffin fan" for cooling.

Re: First ever Turbo experience

Posted: Sat Oct 12, 2019 4:40 am
by Richard Hull
I would imagine water cooling might be in order if this were a 24-7 running turbo. Doc Bussard's lab had its mechanical and Turbo running 24 -7 when I visited in 2000, courtesy of Tom Ligon, his lab rat. Their fusor was a 3 foot sphere at that time.

Richard Hull

Re: First ever Turbo experience

Posted: Sun Oct 13, 2019 4:17 am
by ian_krase
I think it's not so much long-term running but running for significant duty cycle with significant gas flow.

Re: First ever Turbo experience

Posted: Tue Oct 15, 2019 3:46 am
by Bob Reite
Correct. I will sometimes leave my turbo and roughing pump running all the time. But that's under a pretty hard vacuum, so not much heating once the chamber is pumped down. Heat has not been an issue with my air cooled system.

Re: First ever Turbo experience

Posted: Tue Oct 15, 2019 5:14 am
by Jerry Biehler
I think I fried bearings on a varian pump by running it without cooling and it was connected to a SEM, so no gas load. So watch it, I would at least put a muffin fan on it like in the manual.

Re: First ever Turbo experience

Posted: Tue Oct 15, 2019 5:58 am
by Richard Hull
Both Bob and I have muffin fans on our Turbos. See original post images. Bob claims in the above posts that his pump does use a muffin fan.

Richard Hull

Re: First ever Turbo experience

Posted: Sun Dec 29, 2019 1:16 am
by Ameen Aydan
Saw this thread and thought I might ask a question

I have this unit without any cooling assemblies and I’m afraid to try it out without checking the oil. So far I’ve read the manual and I know the process to replace the oil and I know the standard oil needed (TL011). But it’s pretty expensive getting my hands on some.

https://www.duniway.com/part/turbo-oil-100

Is this something I could use? Does anyone have a more economic way?

Thanks,
Ameen Aydan

Edit:

I was dumb and didn't check the MSDS.

https://www.duniway.com/images/_pg/MSDS ... l-100a.pdf

This oil is just repackaged and renamed TL011 oil.

On the brighter side I found a cheaper place to get the oil! Shipping might hurt you though....

https://www.mascom-bremen.de/html/en/va ... 20290.html

Re: First ever Turbo experience

Posted: Sun Dec 29, 2019 4:43 am
by Richard Hull
I have read the manual and the thing seems to need only a few drops on a wick in the bottom that is just a screwdriver remove wick plate as opposed to some oil reservoir that needs filling. I think this is what I read.

Richard Hull

Re: First ever Turbo experience

Posted: Sun Dec 29, 2019 5:16 am
by Ameen Aydan
I just read it too and it seems to say the same thing. But the begs to ask the question of what this little screw is for: