33
[Fig. 8-19]
The standard position of the thread
trimming cam following crank before its
operation is shown in Figure 8-19. If the
position of the roller is changed, adjust it
with stopper and perform the adjustment
describe above in a~b.
Caution
0.6mm
F. Adjusting the position of blade
a) Adjusting the position of the movable knife and the
fixed blade
The standard position of the movable knife is 7.5mm
from the needle center, and 5 mm for the fixed blade.
b) Adjusting the progress amount of the movable knife
①
If you run the machine putting the solenoid in the
operation mode, the movable knife will rotate by
the thread trimming cam. The standard will be
where the cut part of the movable knife
progresses 1.5 to 2mm from the end edge of the
fixed blade when the progress amount of the
movable knife is in its maximum.
②
Adjustment is available by using the thread
trimming lever.
[Fig. 8-20]
[Fig. 8-21]
1~1.5mm
7.5mm
5mm
Summary of Contents for KM-1640BL-7
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