Minuet Recorder Runner Wheel - What Is This?

[mcoulton]

Hello

I'm currently dismantling a clone Valjoux 7750 and I came across this nub on the shaft end of the minuet recorder runner wheel. I've attached a picture. I'm assuming I can remove it but I don't know how and is there a specialised tool for it? I've noticed several other wheels have the same nub.

Thanks in advance for any help that can be provided. 

[Marc]

Looks like the hand pipe, which is supposed to be riveted to the hand. If so it should just lever off but you will need to replace the hand.

[oldhippy]

As Marc has said I agree. Hand pipe just pull it off. 

[mcoulton]

Thanks for the response. Do I use a set of tweezers to pull off the hand pipe and then how do I get it back on? Why would several of the wheels have this set up? With the hand pipe on, I can't remove the minuet recorder wheel nor the train of wheels bridge. 

[spectre6000]

The hands broke off. The hands are supposed to be attached (riveted per Marc) to that part. If you look closely at the photo, you can see where the pipe is split along its length as well. Hand pullers (however you prefer to pull them) should get the job done just fine. Since you're asking, the most likely fix is a new set of hands.

Edited November 16, 2023 by spectre6000

[eccentric59]

It looks to me like the pipe has split, so it might not have been the right size to begin with. A presto tool will work or hand levers. Just make sure you apply even pressure on both sides do you don't damage the pivot. 

[nevenbekriev]

Why 'minuet'? I guess this has to be 'minute'...

I wonder if You understand, but what You see on the shaft is a part of the minute register hand that broke when removing the hand, and has left on the shaft. This is not part of the movement but part of the hand. If You see such things on the other register shafts, then the other hands broke as this one.  You just have to remove this pieces and throw them away, and search for new hands as well.

[mcoulton]

Okay. Got it. I have new hands for this movement anyway so I'll see about prying off the hand pipe off the minute recording wheel and any other wheels if necessary.

Thanks to everyone for their responses as I learned something today.