I have mentioned the problems I have with sticking shafts on my Magic Dobby.
Last week Jan Louët came to see my Magic Dobby and find out why some shafts keep sticking.
First, he oiled the grooves on both sides where the knife goes up and down.
He also oiled the solenoids that kept sticking
and lastly he oiled here. Best would be to use a brush here and oil the inside when they are up
He used sewing machine oil (tiny drops) but I heard later that Teflon oil would be better. Advantage of Teflon oil would be that it does not dry out so quickly and also the dust will not stick to it so much. So, I will get some from the bicycle shop to have on hand as I'm sure it will happen again.