8. When low speed cewing is
not
necessary (Fig.14)
* Be sure to cut off the power and makeadjustment.
When
low speed
sewing
is not necessary
at
the
start
of
sewing;
(T)
Cut off the power source.
(D
open
the cover of the control box.
(3)
Pull
out the
inserted
® of the
figure
from
the pin
fg)
and
insert
it into the pin (0.
Thus,
the low
speed
sewing
function can be eliminated without affecting the thread trimming
function.
n
Fig.
14
9. Carefully
note
the following points
* Be certain that the needle thread comes out smoothly from the thread spindle.
(Otherwi.se,
the remaining thread at the needle eye after trimming will become short and thread slipping out
might
result.)
* When skip-stitching occurs, the bobbin thread may break but the needle thread docs not
break. In such a case, re-adjust the timing of the needle with the sewing hook.
10.
How
to selectthe
presser
foot, throat plate,
sewing
hookandfeed dog
1) Presser foot Select small a and b parts (Fig. 15)
2) Throat plate Select small needle eye and A part.
3) Needle Finer needle for less thread slippage
4) Sewing hook Automatic lubricating hook with a groove
5) Feed dog If a feed dog which is commonly used is adopted, there is no problem,
but if an extremely thick feed dog is used, the backside of the dog teeth might be scratched when
the moving
knife
moves fully.
1)
Presser
foot
2)
Throat
plate
}
Na
Fig.
15
-
15
-
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