Escape wheel Pinion/Staff - help pls

[Jr86]

Hi all,
Im an hobbyist and I’m still learning how to service a movement.

while cleaning a Vintage tissot movement , the escape wheel pinion/staff detached from the wheel. I have no idea what to do, and how to fix it..
(I have no fancy tools..)

any suggestion ?! Thank you

Edited September 29, 2020 by Jr86

[Tudor]

It should press right on but if it slid off that easily you probably need to close the hole a bit. Otherwise the power will spin the shaft faster than the escape wheel is letting it down. 
 

There’s a few ways to do that on “big” stuff but I’ve not had to do it on tiny stuff (yet), though I suspect a staking kit would be crucial to that operation. 

[Nucejoe]

Normally you should peen the hole to get a good grip when you reinsert  the arbour on staking set.  Do not attempt this without the tool as you are sure to bend/ damage the wheel. 

It works if glued, clean, put the wheel on top of a scrap hour wheel to refit the arbour( you are using the hour wheel as an anvil) you can grab the arbour's upper section(not the pivot)  in tweezers to avoid damage to the pinion. refit, apply the smallest bit of glue to the pinion shoulder, try not to get any glue on the pinion. This wouldn't  get approval from any master watchmaker, just that works . 

The glue specially if super glue will in the long run chemically react/rust l and weld the two parts bonded permanently.

In case of mishap when gluing ,immediately soak in acetone and brush the glue off.

Good luck.

[watchweasol]

Hi with either a staking tool or a 36 hole staking block and punches close the hole a little and re fit the wheel, be sure to check the poise of the wheel when done for flatness.

[HectorLooi]

I suggest you put it on first to check the direction of the wheel before gluing it on or closing the hole. You wouldn't want a backward face escape wheel.

[Tudor]

It could be fun!

I had a new quartz clock from work they were throwing out because it ran backwards. 
 

I set it up in my basement studio and you could read it perfectly in the control room window reflection. 

[jdrichard]

Use JBWeld


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[Jr86]

Thank you everybody for the answers, I will try to use some adhesive