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1
2
3
4
0 mm
0.05 to 0.1 mm
7.5 mm
When making the needle size thicker, confirm the clearance between the needle
tip or the intermediate presser and the wiper. Wiper cannot be used unless the
clearance is secured. In this case, turn OFF the wiper switch, or change the set value
of memory switch U105.
4
3
2
5
0 mm
6
1
5
4
7
8
2) Loosen setscrew 1 in the driver. Drawing
bobbin case opening lever hook 2 toward you,
open it to the right and left until bobbin case
opening lever 3 comes off.
At this time, be careful not to let
shuttle 4 come off and fall.
3) Adjust so that the point of shuttle 4 meets the
center of needle 5 , and that a clearance of 0
mm is provided between the front end face of
driver 6 and needle as the front end face of
driver receives needle to prevent the needle
from being bent. Then tighten setscrew 1 .
4) Loosen shuttle race screw 7 , and adjust the
longitudinal position of the shuttle race. To do
this adjustment, turn shuttle race adjusting
shaft 8 clockwise or counterclockwise to
provide a 0.05 to 0.1 mm clearance between
needle 5 and the blade point of shuttle 4 .
5) After adjusting the longitudinal position of
shuttle race, further adjust to provide a 7.5 mm
clearance between the needle and the shuttle
race. Then, tighten screw 7 of shuttle race.
– 115 –
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