23
Mechanical Adjustment
MODEL: AirThread 2000D
With the needle deflected by the needle guard (front), the standard clearance between the part of the largest diameter
of the tip of the needle (HAx1 SP #14) and the needle guard (rear) is 0.05 to 0.25 mm.
To replace the needle guard (front).
To adjust the clearance of the needle and the needle guard (rear).
To replace the needle guard (rear):
To remove:
Remove the bolts (2 pcs.) and remove the needle guard
(rear).
To attach:
Attach the needle guard (rear) and tighten the bolts (2
pcs.).
To adjust:
1. Follow the procedure of “To adjust the clearance of
the needle and needle guard (front)” on the previous
page.
2. Turn the handwheel toward you until the tip of the
lower looper comes from the left to the rear groove
of the needle (with the HAx1 SP #14 needle slightly
deflected by the needle guard (front)). Check the
clearance between the part of the largest diameter of
the tip of the needle and needle guard (rear).
3. If the clearance is not correct, loosen the bolts (2
pcs.). Adjust the position of the needle guard (rear)
and tighten the bolts (2 pcs.).
4. Attach the face plate and the front cover.
5. Attach the needle plate.
6. Attach the presser foot (unit).
7. While pressing the upper knife release knob, turn it
clockwise by half a rotation to activate the upper knife.
8. Close the looper cover and the side cover.
Needle guard (rear)
Bolt
Upper knife release knob
Upper knife
Needle bar gauge
Needle
guard
(front)
Needle guard (rear)
Lower looper
Groove
0.05 - 0.25mm
0 - 0.05mm
