Basic Positioning Of Feeding Step Motor - Singer Quantum Stylist 9960 Service Manual

13. Basic positioning of feeding step motor

This adjustment should normally only be carried out if the step motor has been replaced.
Check - basic position
1. Place the step motors cog wheel (A) against the pin stoppers left side (B).
2. The mark (C) should now line up against the most right cog (D) of the cog segment of guide block.
Adjustment - basic position
1. Loosen up the set screw on the Step motor cog wheel (A).
2. Set the step motors cog wheel (A) against the pin stoppers left side (B).
3. Move the cog segment of guide block so its most right cog (D) is lining up against the mark (C) on the
step motor cogwheel.
D
B
A
Check - fi ne adjustment
NOTE! In the following procedural it's required that the Feed unit is removed from the machine.
1. Connect the step motor to the main PC board.
2. Loosen up the set screw on the Step motor cog wheel (A).
3. Pressing the two indicated keys (E) and (F) in the illustration simultaneously while switching on the
machine.
4. Turn the cog wheel around so the left side of the step motors cog wheel (A) is against the stop pin (B).
5. Press the key (F) key, to set the step motor to its set/starting point.
6. Tighten the set screw on the Step motor cog wheel (A).
F
+
E
TM
Singer Quantum Stylist 9960 17