Originally Posted by
vmaniqui
yes, it does move when i loosen it. so i will check the needle bar side of the harp. what can i use to loosen them ?
Last time I had a stuck one it was the needle bar. The bar was rusted on to the tube it used to move along. I used WD40 to penetrate it, then rocked the hand wheel back and forth very slightly over a period of about 10 mins and it started moving. If you do this, make sure you remove all the WD40 before oiling. Its not nice if you leave it in: Leaves a residue and mixes with any oil. Get it all out then oil it. You don't need to go overboard with oiling. A couple of drops in each hole is plenty.
Lots of people here will want to tell you not to use WD40, but it worked really well for me for this problem, and I wiped it off really thoroughly. Machine was a 1920s model 66.
After a little while (a few minutes connected to a motor) it was as smooth as one that's been well looked after.