If you have
a sight window look to see if the oil lever is up to the mark.?
If it is that old I would drain and replace the
oil.
Make sure the ballast valve is not fully open so you are not just
pumping through the valve and not the system. I would start with the
valve fully closed and then if you have trouble with water getting in
your oil and making it froth up and lose pumping speed you can begin
opening he valve is stages. It is best to let in dry air if it is
available.
Don
Hi
all,
?
I'm new to
this group - looks like some of you have some fancy rigs I could only
dream of. AnywayI've just dug out a very old Edwards single stage
speedi-vac pump, model 1sc50, which has been on the shelf for many
years. When I started it up, it did not produce hardly any vacuum (
only an absolute pressure of about 600 mbar, which is useless!!!).
Before I start stripping it down, I was wondering if anyone had or
could point? me towards a manual? This pump is
probably?around 50 years old, but I remember it being refurbished
by Edwards around 1975 and it hasn't been used since
then.
?
many thanks
in anticipation,
?
James
--
____________________________________
Donald M. Mattox
Society of Vacuum Coaters
71 Pinon Hill Place NE
Albuquerque, NM? 87122-1914
Telephone 505/856-7188
FAX 505/856-6716
E-mail donmattox@...
WebSite? http://www.svc.org
