Krzysztof Kamienski wrote: You have the diagram ready, so what are you asking? The switch, marked "off", alternately closes the opposite contacts in pairs, for clockwise and counter-clockwise rotation.
in order not to make a mess, I will ask for a hint again by attaching photos from the current connection.
There are 3 wires coming out of the engine: red, black and yellow-green
In the switch, the blue power supply is connected directly to terminals 7 and 1 (closed with a jumper) (zero)
on 10 and 4 comes the phase from the power supply
on the 9th red with silknika, shorted with a jumper with 3
on 2 black from the engine shorted with a jumper with 8
the third motor goes to the periphery and is connected to the yellow-green one from the power cable (ground)
In the diagram I put in post 20 there are 4 wires, if I can see correctly? So the diagram is probably not from this engine. Do I understand correctly