JUKI MB-377 - Positioning the thread nipper; Positioning the stitch adjusting cam

−8 −
(6) Lift and pressure of the button clamp
1) Lift of the button clamp
A MB-372 : 12 mm
MB-373 : 9 mm
MB-377 : 8 mm for コ-shape
8 mm for Z -shape
10 mm for X -shape
2) Pressure of the button clamp
Adjust the position of pressure adjusting nut 1 to 4 to 5 mm from the lower side of the screw section of
pressure adjusting bar 2.
(7) Thread tension disc No.1
Adjust so that the thread tension disc No.1 floats by 1 mm at the time of stop motion.
Also, the thread tension should move during the sewing operation.
Standard Adjustment
4 to 5 mm
Floats by 1 mm at the time of stop motion
Thread tension disc floating plate
3
4
A
1
2