19
TO ADJUST THE POSITION OF
THE UPPER LOOPER
Correct Setting:
When the upper looper is at the leftmost position, the distance between the center of needle on the right and the
center of looper eye should be 4.8 to 5.2 mm.
To adjust:
1. Remove the machine base.
2. Loosen the hexagonal socket screws A, and adjust the distance between upper looper shaft guide and
bottom of upper looper. The distance should be 1.6 to 1.8 mm when the upper looper is at the lowest position
as shown in Figure 1.
3. Tighten the hexagonal socket screws A.
4. Turn the handwheel and bring the upper looper to the leftmost position.
5. Remove the spreader setscrew B and spreader holding plate C.
6. Loosen the hexagonal socket screw D, and adjust the distance between the center of needle and center of
upper looper eye is 5 mm (4.8 to 5.2 mm) as shown in Figure 2.
7. Tighten the hexagonal socket screw D.
8. Set the spreader holding plate C to the upper looper shaft, and tighten the spreader setscrew B.
9. Check the upper and lower loopers timing and clearance between upper and lower loopers.
10. Attach the machine base.
1.7 mm
Needle on
the right
O.L G05
5 mm (4.8 to 5.2 mm)
Upper looper
Upper looper shaft
guide
1.6 to 1.8 mm
Upper looper shaft
Hexagonal socket screws A
Figure 1
Figure 2
Spreader
setscrew B
Spreader
holding plate C
Hexagonal socket
screw D
Upper looper
shaft
Figure 3
Upper looper
1.6 to 1.8 mm
