Owner's Manual
Page 32
... Stop bobbin winder. 7. Stopmatic Works Incorrectly Cause: After frequent operation of the Stopmaiic it back and forth. Thread Jamming The new Pfaff rotary hook will be sufficient to overcome hard working while sewing (when a bobbin is operated. If thread should happen to jam in...jerk it may have cooled down and the electric circuit has been closed automatically. Use only Pfaff sewing machine oil -- Clean and oil hook raceway. Have your Pfaff dealer adjust the belt tension. Note the "Fundamentals of thread. never salad oil or glycerine. Machine Works Heavily ...
... Stop bobbin winder. 7. Stopmatic Works Incorrectly Cause: After frequent operation of the Stopmaiic it back and forth. Thread Jamming The new Pfaff rotary hook will be sufficient to overcome hard working while sewing (when a bobbin is operated. If thread should happen to jam in...jerk it may have cooled down and the electric circuit has been closed automatically. Use only Pfaff sewing machine oil -- Clean and oil hook raceway. Have your Pfaff dealer adjust the belt tension. Note the "Fundamentals of thread. never salad oil or glycerine. Machine Works Heavily ...