I quite like beech for this job - in fact I also have a small hobby type vice and stole a straight bit of Brio track out of the toy box, did the job no hassle but don't tell anyone (he has loads and one section wasn't missed.
Vaillant UK have a service department https://www.vaillant.co.uk/service/annual-servicing/
It may be worth getting them to service the boiler and it will put beyond doubt if there is a problem with the actual boiler.
As a side issue have you bled the radiators (starting at the highest one in...
Good video
I am running out of basic replies so maybe others with more knowledge of motors may be able to help further.
Have you changed the brushes you mentioned yet as it looks as if they are at the belt end of the motor and with the spark nearby they could be the problem.
Strange as sometimes your message can be in either language
Have you checked the wiring in the plug perhaps a loose wire or one wire touching another?
Does the motor turn freely by hand with NO power connected and no belt connected
Are you able to have replies in English as I need to paste your comments to google translate and its a bit of a bother
Have you checked the wiring in the plug perhaps a loose wire or one wire touching another?
Imo if the motor works not connected to anything it simply proves the motor works not under load and there should be something else that's tight stalling the motor/blowing the fuse.
I don't have a Triton so can only visualise. Others may know the machine and be able to advise better
Find a product you like that fits your lathe -with a selection of jaws (you can buy later on) search for best price and done
Or if you are forward looking to another lathe with a different spindle thread then consider a chuck that you can change the insert so it fits a different machine.
Great lathe its takes only a moment to change belt/speed leave it alone. Possibly you will find a speed that suits you and it will stay there for most of a job
Something like this product should be maintenance free
https://www.amazon.co.uk/TATAY-plastic-anti-UV-anti-slip-protection/dp/B00GY6W36S/ref=sr_1_8?keywords=plastic%2Bshower%2Bduckboard&qid=1706337675&sr=8-8&th=1
I agree with Sideways 06.49 comments.
Also IMO the value of 110v American machines as described has a very low sale (if indeed you can find a buyer) value in the uk.
So I would sell and start again