I would appreciate if anyone has an idea how to get this button off.
Does it matter? If it doesn’t break its just a cosmetic problem. If it does break and falls off then your problem is solved – unless you can’t get the gear down. By the look of things there’s enough of a stub that you could still use the lever anyway?
I would turn a new one on a lathe, which I think is how your part was created – but on a certified aircraft this may not be allowed.
I’m pretty sure Troyes Aviation https://troyesaviation.com/en/ has this part.
On my TB20GT there is a pin in there. This is the upper hole
and this is the lower hole
The OP’s pic doesn’t show these holes so the “wheel” is just glued on. The switch itself is prob99 from APEM in France (good switches actually, but expensive – €50-100) and the wheel is just machined up on a lathe, in the case of Socata by a 99 year old guy working in one of these
somewhere around here
If the switch is OK I would machine up a new wheel on a lathe, but gluing it to the switch toggle might be tricky unless the switch is extracted (to prevent the glue running out). The switch has a locking toggle in this style
Also I would machine it up in brass and paint it white, not the present nylon, because you can’t easily glue nylon to metal.
It looks like it could be a standard 3-position toggle switch with a multi-part (two-piece?) plastic disk/button glued on the end, held on mechanically due the taper of the toggle. In that case I think you’d have to break the button to get it off.
PS cross posted with Peter.
The problem I’m here now is my landing gear won’t go up sometimes. The relay won’t switch, that is sure.
I had changed the relays, the connections of the MS and the MS checked. Everything works properly.
Now I wanted to prophylactically exchange the gear lever.
Obviously I have to destroy the gear knob to exchange the locking lever switch.
It could be a broken switch.
The easiest path is to throw money at Socata, but if you have time (say during some multi-month Annual) you could fabricate your own solution.
I don’t know what switch style is used and can’t really look until my Annual in Jan 2023. I do have a bag of ex Ebay APEM safety-latched switches though.
Come to think of it I have to replace the crappy $1 intermittent switch on my TKS control unit, which would cost me $1000+ to fix the “proper way” and then I will still get the crappy $1 switch back in there, from CAV’s 30 year old stock of TKS parts… So I will replace it with a $100 milspec switch.
Yes Peter, that’s always my way of finding out what it can be. It’s interesting and part aviation.
Thanks again, I’ve gotten a lot of useful things over the past few years.
In this forum you are not alone with your problems.
