Vacuum Pump Repair

[scottfab]

I can't resist a challenge on repairing things.
Back about 12yrs ago my secondary vacuum pump failed.
I took it apart and replaced the diaphragm in it.
The I used epoxy to hold the cover for the diaphragm in place
and avoid leaks.
Well 12yrs later it fails again. This time I fashioned a bracket that
fits over the vacuum pump and holds the diaphragm in place.
This way I can get back in and put a new diaphragm in without having to chip away at the glue holding the cover for the diaphragm in.

Picture of damaged diaphragm
http://zr1.net/forum/album.php?albumid=189&pictureid=1445

Picture of bracket around pump
http://zr1.net/forum/album.php?albumid=189&pictureid=1446
Not the prettiest thing in the world but oh so functional.

[scottfab]

In the picture of the diaphragm you can see the split in the rubber right at the point where the metal washer touches it when it's in the pump.

[Corbusa]

Sweet thanks for the info..

[4-cam]

Mines in a box in the garage along with the rest of the secondary junk. I wont break if it isn't installed.

[scottfab]

Mines in a box in the garage along with the rest of the secondary junk. I wont break if it isn't installed.

I'm happy for you. Thanks for sharing your insight.

[Don in VT]

Hi Scott,

Nice pix, BTW, is that a TEK scope in the background ?

Cheers,

Don ( ex Tektronix engineer)

:salute:

[scottfab]

Don
Yes as a matter of fact it is a 2230.
One of those I was responsible for.
(also ex Tektronix eng)