Glad you were able to get the machine out of the bottom plate.

Concerning the little c-clip: if it is really, really tiny it may come from the left pivoting point of the paper bail. I am not sure because I don't have a basket shifted Tippa anymore, but I know that the models that came before it have the c-clip there. It's purpose is to keep the paper table and paper bail in place.

The sound you hear when you are using the carriage return (as demonstrated in your video) is most likely caused by the silent return mechanism not working properly. Because I don't have your machine I can't give exact directions how to fix the issue, but I would start to take a good look at the escapement while you are doing the carriage return. If the sound is caused by the silent return mechanism, a good clean could be the only thing that's needed. 

Lau

 

Thank you for the tips; the sound problem seems to have gotten better after my general cleaning. The mystery clip is not the smallest one I've seen on the machine, but I will keep looking for any obvious spots which could be missing one. Could also be that it's something that was lost and already replaced earlier during the machine's lifetime.

This gets a bit embarrassing, but just as I thought I'm done with maintenance on this particular machine, it seems like I have accidentally introduced a new problem:

After the general cleaning I put everything back together and went on to test the machine.
The problem is that now the line spacing system doesn't work properly! The part (pawl?) which is supposed to do it only works properly if I use the return lever very slowly.

This problem pretty much renders the machine unusable again. I must have bumped into something there when I was inserting the platen back for the second time, which I had to remove again for the general cleaning, and which is a bit more challenging when compared to the carriage-shifted Tippas, thanks to the large plastic card guide being on the way.

Both of my carriage-shifted Tippas have this mechanism in full working order, and it looks very similar as on the Tippa S, so I should have replacement parts if I actually broke something beyond repair. I filmed a short video in order to demonstrate the problem better:



 

Finally had time to remove the platen again in order to investigate the problem. I also did the same for my parts machine Tippa 1, so I could better see what might be the issue. 

Lucky for me, it turned out that while inserting the platen back, I had just somehow managed to deattach a tiny spring from the mechanism, which was now hanging loose; so all I had to do was to grab the loose end with tweezers and slide it back into the hole.

In case some other newbie ever has the same problem and finds this thread, I'll add two photos which demonstrate the issue.

Below you can see the spring hanging loose on the Tippa S, and the hole where it's supposed to be. Just be careful when grabbing the spring, as it might accidentally end up flying out of the other hole as well and get lost.


Just to make it crystal clear, here's a photo from the Tippa 1 which shows how it's supposed to look like (pardon the dirt):