Re: [AMMRL] BACS-120 pincher from Ulrich on 2023-12-04 (Email Archives for December, 2023)

From: Ulrich <Ulrich.Haunz_at_uni-konstanz.de>
Date: Mon, 4 Dec 2023 18:38:38 +0100

Dear All!

Von meinem iPad gesendet

Am 04.12.2023 um 15:13 schrieb Justin Pontius via groups.io <jpontius=nd.edu_at_groups.io>:

Hello,

We have an aging Avance2 400 with a BACS-120 sample changer. Recently the pincher seems to get fouled up when trying to pick up tubes. When the "fingers" open they dangle freely. When it moves over the tube every now and then a finger will get pushed to it closed position. Of course the changer detects an error and stops. I'm wondering if this is normal or did something break inside the mechanism. I'm terrified to try and take it apart. It's mostly working now but the fear is if I get it apart then it won't ever go back together again. Does anyone have any experience with it? I'll attach some pics and a video below.

https://photos.app.goo.gl/QxJHZHZyJDnvLABu6

No problem - the spring is broken. There is a black ring around the five fingers.

There are some screws and you can demount these and take the black stuff carefully away. Then you can get access to the spring. You can remove this metal one.

If not, you can use someone out of rubber, but the life of these are quite short.

Yours sincerely,

Ulrich Haunz

--

Justin Pontius
NMR Facility Engineer
Magnetic Resonance Research Center
University of Notre Dame
nmr.nd.edu

574-631-7601 (direct line)

145A Nieuwland Science Hall
Notre Dame, IN 46556

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Received on Mon Dec 04 2023 - 09:38:56 MST

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