I've got a Meopta Magnifax 4a which I think is fairly similar. I've found that the bellows are quite stiff and to reach focus with a 50mm lens I have to give the lens mount a gentle upward push whilst I'm turning the focusing knob to get it to the focus point. As others have said, you do also have to make sure that the lens mounting ring is orientated so that the lens goes up closer towards the negative carrier.

And my enlarger timer was made in Greece...!