Try www.sewingonline.co.uk/instructions.
Large spring in first, curved disc, flat disc, curved disc,
large disc with finger, cover with +and-,cone spring,numbered dial, chrome screw, turn the numbered dial so 4 is at the top, push in and tight the chrome screw bit by bit and test sew until you get it right.
drivewithken@blueyonder.co.uk, July 2008