JUKI MF-7900 Series Engineer's Manual page 32

WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.
6. Adjustment figures of the spreader thread guide
(1) It is the standard that the clearance provided between spreader ❶ and spreader thread guide  is 0.4
to 1.0 mm.
(2) It is the standard that the clearance provided between spreader thread guide  and needle clamp
thread guide  is 0.8 to 1.2 mm.
(3) Lateral position of the spreader thread guide
Top end of thread hooking section F of the spreader ❶ aligns with center G of slot E in spreader
thread guide  when spreader ❶ is in the extreme right position.


0.8 to 1.2 mm
0.4 to 1.0 mm
Standard adjustment
❶


– 18 –


E

7.8 to 8.2 mm

D


F
E
❶
❶
G