How to remove t2 to t2 adaptor from Electronic filter wheel?

Focusers, Filters, Barlows etc..

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banjo1000
Posts: 5
Joined: Sun Jul 22, 2018 11:52 pm

How to remove t2 to t2 adaptor from Electronic filter wheel?

Post by banjo1000 » Tue Apr 21, 2020 2:15 am

My t2 to t2 adapter is screwed on to my motorized filter wheel to tightly. I cannot get purchase enough to unscrew it. There are two holes in the adapter that seem to be designed for a removal tool, but none is supplied. I hesitate to stick a metal tool in the hole because it would scratch up my EFW. Suggestions? Thanks!

wvreeven
Posts: 57
Joined: Mon Apr 01, 2019 7:06 am

Re: How to remove t2 to t2 adaptor from Electronic filter wheel?

Post by wvreeven » Tue Apr 21, 2020 5:36 pm

Take a shoe with a rubber sole and press the sole onto the ring. Put your hand in the shoe, press and rotate. I do this all the time when rings etc get stuck and it works like a charm. No joke!!!


HTH, Wouter

Moson
Posts: 205
Joined: Wed Apr 01, 2020 8:28 am

Re: How to remove t2 to t2 adaptor from Electronic filter wheel?

Post by Moson » Wed Apr 22, 2020 6:07 am

You could find a wire, bend it, and insert it into those two holes, and then unscrew the T2-T2 adapter.

banjo1000
Posts: 5
Joined: Sun Jul 22, 2018 11:52 pm

Re: How to remove t2 to t2 adaptor from Electronic filter wheel?

Post by banjo1000 » Fri Apr 24, 2020 1:37 pm

Wouter, thanks for the suggestion. I tried, but unfortunately my ring is really stuck on my EFW. I really do need some kind of tool that catches the holes in order to apply enough torque.

It is hard to imagine others haven't encountered the same problem. Clearly, the designer was aware of the issue, or else there wouldn't be holes for a tool. It is unfortunate that a removal tool isn't supplied by ZWO with each electronic filter wheel. I'm still stuck, or should I say, the adapter is still stuck.

Best,
Joe

Moson
Posts: 205
Joined: Wed Apr 01, 2020 8:28 am

Re: How to remove t2 to t2 adaptor from Electronic filter wheel?

Post by Moson » Sun Apr 26, 2020 9:04 am

Did you reverse the T2-T2 adapter?
If you still can't unscrew it, you could return it for fix. But it pays a lot.

banjo1000
Posts: 5
Joined: Sun Jul 22, 2018 11:52 pm

Re: How to remove t2 to t2 adaptor from Electronic filter wheel?

Post by banjo1000 » Mon Apr 27, 2020 3:39 pm

A T2-T2 adapters the same on both sides. One can’t reverse a symmetrical adapter!

Moson
Posts: 205
Joined: Wed Apr 01, 2020 8:28 am

Re: How to remove t2 to t2 adaptor from Electronic filter wheel?

Post by Moson » Tue Apr 28, 2020 7:05 am

We are sorry about this.
There is one way we can help you, that is return it back, then we can fix it. But this way will cost a lot.

banjo1000
Posts: 5
Joined: Sun Jul 22, 2018 11:52 pm

Re: How to remove t2 to t2 adaptor from Electronic filter wheel?

Post by banjo1000 » Tue Apr 28, 2020 3:35 pm

Dear Moson,
Shipping back to ZWO is not a helpful solution. It would be cheaper to remove the T2-T2 adapter destructively by grabbing the exposed threads in a vice, and purchasing another T2-T2 adapter which is a $12 part if I recall. Unfortunately, I could still run into the same problem again in the future. Clearly the engineer who drew up the part was aware that it could get stuck, because s/he put the pair of holes in the part. My opinion is that it would be appropriate to include a removal tool with every motorized EFW and any other ZWO device which can suffer the same problem.

I spoke with a friend who works in a metal shop. He recognized the name of the tool that I want as an adjustable pin spanner. The tool is most often used in angle grinders, and it is often used to tighten/loosen retaining disks in the bicycle world. At the very least, ZWO should be advising its customers of the tool needed. ZWO support confirms that the pin holes in the T2-T2 adapter are 3mm. I have ordered a Park Tools SPA-1 adjustable pin spanner with 2.9mm holes from Amazon.

https://www.amazon.com/Park-Tool-SPA-1- ... 107&sr=8-1

I shouldn't have to purchase a 3rd party tool. I suggest that ZWO start including a fixed pin spanner matched to the pin holes of the T2-T2 adapter. It would not be an expensive part.

Moson
Posts: 205
Joined: Wed Apr 01, 2020 8:28 am

Re: How to remove t2 to t2 adaptor from Electronic filter wheel?

Post by Moson » Thu Apr 30, 2020 7:07 am

Thank you very much for sharing this solution to us !
And we are glad that you have solved the problem. Also we will consider your suggestion.

banjo1000
Posts: 5
Joined: Sun Jul 22, 2018 11:52 pm

Re: How to remove t2 to t2 adaptor from Electronic filter wheel?

Post by banjo1000 » Mon May 04, 2020 5:05 pm

Confirming, it was trivial to remove the T2-T2 adapter with the pin spanner.

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