Struggling to treadle
I bought a Singer 15k treadle from a local charity shop. I've spent all day cleaning it up, I did some trial sewing turning the hand wheel to check it sewed ok, which it did, then I attempted to treadle, something I have never tried before and I just can't do it! I tried without thread and managed ok but with thread I keep going backwards and forwards, snapping the upper thread and generally getting in a mess. Any tips on treadling would be much appreciated.
Clare