Re: Repairing A Stuck Condensor Iris

On Oct 21, 12:10 pm, "NoSpam" <NoS...@xxxxxxxxxxxxxxxx> wrote:
"Kevin Cunningham" <sms...@xxxxxxxxxxxxxx> wrote in message

news:1192980321.521691.51120@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx





Too_Many_Tools wrote:
I have a condensor whose iris is stuck....hardened grease I suspect.

What is the procedure that one should follow to repair it?

Thanks

TMT

I differ from heini, I use heptane. The big problem with heptane is
getting it, usually there is a 5 gallon minimum purchase. I usually
buy my heptane from a friend who uses lots of it. Its a carbon ring
chemical similar to other petro-chemicals but it has several
advantages, it dissolves most glues, won't hurt plastics (mostly), and
gets rid of old grease binders. It has a relatively low vapor
pressure so it usually won't explode. It's safer than acetone.

You need to remove any screws and carefully disassemble the
condenser. The ring with the handle comes off but be very, very
careful to not disturb the diaphragm leaves. If these come out it can
be hours, days, weeks of problems. Then clean every thing off and re-
lubricate the edge of the ring and the inside of were it sits.

Again, clean off the leaves but don't remove them.

Thanks, let us know how it goes.

Kevin Cunningham
SMS

Kevin,
I do not wish to be a nitpicker, but heptane is NOT a carbon ring
chemical. It is a linear molecule. Those interested in details on heptane
may find the corresponding wikipedia article of interest.
GR.

Sigh, my chemical knowledge is rather limited, as in completely
limited. Thank goodness there are folks like you who actually know
chemistry.

Thanks,

Kevin Cunningham
SMS

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