Timing Of The Upper And Lower Shaft - Singer Quantum Stylist 9960 Service Manual

1. Timing of the upper and lower shaft

Check
1. Remove the Front cover.
2. Turn the hand wheel to set the needle bar to its lowest position.
3. At this time, the mark (A) - very small molded line on edge, on the lower shaft timing pulley
must be facing straight towards the front.
Adjustment
1. Remove the Front Cover.
2. Loosen the screw (B) of the timing belt tension pulley bracket.
3. Slip out the timing belt from lower shaft timing pulley.
4. Set the needle bar to its lowest position.
5. Turn the lower shaft timing pulley so that the mark (A) faces toward you.
6. Hook the timing belt on the pulley.
7. Push the tension pulley bracket so that the edge of bracket should be 0-1 mm lower than the casting.
NOTE! After adjustment , be sure to check and/or adjust "Hook timing"
0-1 mm
B
B
A
TM
Singer Quantum Stylist 9960 5