– 104 –
❽
❾
❾
0 mm
0 mm
❽
0.05 to 0.1 mm
7.5 mm
2) Loosen setscrew
❽
in the driver. Drawing bob-
bin case opening lever hook
❾
toward you,
open it to the right and left until bobbin case
opening lever
comes off.
At this time, be careful not to let
shuttle
come off and fall.
3) Adjust so that the point of shuttle
meets the
center of needle
, and that a clearance of 0
mm is provided between the front end face of
driver
and needle as the front end face of
driver receives needle to prevent the needle
from being bent. Then tighten setscrew
❽
.
4) Loosen shuttle race screw
, and adjust the
longitudinal position of the shuttle race. To
do this adjustment, turn shuttle race adjust-
ing shaft
clockwise or counterclockwise to
provide a 0.05 to 0.1 mm clearance between
needle
and the blade point of shuttle
.
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
of shuttle race.
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 se-
cured. In this case, turn OFF the wiper switch, or change the set value of memory switch
U105.
