[3dem] Gatan 914 holder - should shutter close further than this?

[Richard Gursky]

Hello All,
Yes, the shutter rod is adjustable by the closure slide end.  I think a
long time ago I did it myself by turning the button in opposite directions
to loosen the clamping on the rod.  See if the button is knerled or not.
But please call Gatan for advice!  How is the Vacuum in the Dewar when you
get done using the Holder?  May be that you are at a point of use in the
Holders life that the Vacuum seals on the Holder body are leaking, again I
would contact Gatan for advice.  I used to talk with Mike Dods for Holder
repairs 724-779-2523, but not sure he is still with Gatan.  Hope this helps.

Best Regards
Ritch Gursky

On Fri, Aug 10, 2018 at 8:45 AM Matthews-Palmer, Teige Rowan Seal <
t.matthews-palmer14 at imperial.ac.uk> wrote:

> Dear 3DEMers,
>
> While troubleshooting some “leopard print” ice contamination on a Gatan
> 914 holder, we noticed that the *underside* of the cryoshield/shutter
> does not close 'all the way' (you can see the grid).
> I wanted to know from other users of 914 holders, does the underside of
> your shutter look like this when closed, or does it slide further to
> completely seal away the grid?
>
> An alternative cause of the contamination is a leak through the shutter
> rod assembly.
> Any thoughts welcome!
> Thanks,
> Teige
>
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-- 
Richard P Gursky
604 Duck Call Cv
Cordova, TN 38018
Cell # 901-212-9254
Home 901-425-4599
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