– 16 –
1) Turn the pulley to move the upper knife ❹ to the
lower dead point.
2) Loosen the screw ❶ and move the lower knife
holder ❷ to the left, and then tighten the screw ❶
a little.
3) Loosen the screw ❸, and move the upper knife
holder left or right till reaching the desired width.
Then, tighten the screw ❸.
4) Loosen screw ❶. Move the lower knife holder ❷
until the lower knife comes in contact with the upper
knife.
Test if the knives can cut the thread, and then
tighten the screw ❶.
11. ADJUSTING THE OVEREDGE WIDTH
12. ADJUSTING THE NEEDLE HEIGHT
Turn the pulley to bring the needle to its upper end. At
this time, adjust the distance from the needle tip to the
top surface of the throat plate appropriately.
1) Loosen four screws ❶. Open top cover ❷ and
detach it.
2) Loosen the screw ❸, and move the needle bar ❹
to the desired height. Then, tighten the screw ❸.
3) Close top cover ❷. Tighten four screws ❶.
After the adjustment of the needle bar
height, check the relation between the
needle and the looper.
Refer to"18. DIMENSIONS USE TO Ad-
justing THE LOOPER AND THE NEEDLE
GUARD" p.24 for the adjustment values
of the needle height.
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and ascertaining that the motor is at rest.
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and ascertaining that the motor is at rest.
❶
❸
❷
❹
❷
❸
❹
❶
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