Singer Quantum Stylist
TM
9960 21
17. Height of bobbin thread pullout arm
Check
1. This arm moves to three different positions (High, Middle, and Low) by turning the hand wheel.
When the arm is at the middle height, the arm should be 0.2-0.3 mm lower than the highest point of the
bobbin case (a).
Adjustment
1. Remove the needle plate, base, front and rear cover.
2. To get excess to the setting screw, push the pin (b) of thread cutter solenoid lightly, and turn the hand
wheel toward you, this will insert the cam follower pin (c) into the thread cutter cam.
3. Turning the hand wheel toward you more degrees, until that the movable knife (d) be in a position so it
does not block adjust hole (e). (At this time, the arm will be set at the highest position.)
4. Turn the adjust screw which is located deep inside of the hole (e) by 1.5 mm hex wrench.
- Turn clockwise: The arm comes higher.
- Turn counter-clockwise: The arm comes lower.
5. Turn the hand wheel toward you 2-3 turns.
6. Re check the height of the arm in its middle position is 0.2 to -0.3 mm lower than the highest point of
the bobbin case (a).