text: SOLVED: THE SEWING THREAD WILL NOT CATCH THE BOBBIN THREAD - Fixya
  THE SEWING THREAD...
  I HAVE RE-WOUND AND RE-THREAD...EVERYTHING SEEMS TO BE WORKING FINE, BUT WHEN NEEDLE GOES DOWN TO CATCH THE BOBBIN THREAD, IT COMES BACK UP WITH NO THREAD
  Posted by k_rose610 on Jul 22, 2010
  Re: tHE SEWING THREAD WILL NOT CATCH THE BOBBIN THREAD
  hi, you need to alter the timing, mostly related to the upstoke, as the needle returns, sadly i never worked on one of these however it sounds a classic timing issue...