22
990D
Upper looper
0 to 0.1 mm
Lower looper
(Fig. 3)
(Fig. 2)
Lower looper
Upper looper
(Fig. 1)
Correct Setting:
When the loopers meet as shown in Fig.2, the clearance should be 0 to 0.1 mm as shown in Fig 1.
To adjust:
1. Remove the presser foot and needle plate.
2. Turn the handwheel toward you with your hand to bring the loopers as shown in Fig. 2.
3. Loosen the setscrew A, and adjust the clearance by moving the upper looper to the back or front
as shown in Fig. 3.
4. Tighten the setscrew firmly.
5. Check the clearance between the upper looper and needle.
6. Attach the needle plate and presser foot.
TO ADJUST THE CLEARANCE BETWEEN THE LOOPERS
Setscrew
Upper looper
