Clearance Between The Looper And Needle; Adjusting Amount Of The Looper-Avoid - JUKI MF-7000 Series Engineer's Manual

MF

5) Clearance between the looper and needle

Clearance between the blade point of the looper and the grooves of the right/left needles is 0 to 0.05
mm. (Clearance of the middle needle becomes larger a little.)
0 to 0.05 mm
Top end of looper

6) Adjusting amount of the looper-avoid

When the needle descends, the top point of the needle touches the back of the looper at the position
of 2/3 from the upper side of the looper.
Standard Adjustment
Right needle
0 to 0.05 mm
Needle descends
Back of looper
11
− −
Needle
2/3
1/3
Looper