Caution:
1.To prevent the unexpected startup of sewing machine, trim off the power supply
before the operation is conducted.
2.The take-up spring is already adjusted properly before the machine leaves the
factory as a rule, and it requires readjustment only for sewing of special materials
or usage of special stitch threads.
2
.Adjustment of the Stroke to the Thread take-up Spring:
1) Lower the presser foot by using the lifting lever.
2) Loosen the set screw ②.
3) Rotating the screw ③ in the clamp to adjust, the stroke to the Thread take-up Spring ① will
increase when turning toward the clockwise(A), otherwise decrease when toward anti-clockwise (B).
(The standard stroke, under the state of presser foot was put down is around 6~7mm higher than
the slow hook)
4).Securely tighten the screw ②.
Caution:
1.To prevent the unexpected startup of sewing machine, trim off the power
supply
before the operation is conducted.
2.The take-up spring is already adjusted properly before the machine leaves the
factory as a rule, and it requires readjustment only for sewing of special materials or
usage of special stitch threads.
Fig.31
B
A
※The tension of take-up spring is
too high, so needle thread is
drawn out of place B in process of
the action.
※The take-up spring kee
ps on functioning till the
end.
B
A
④
⑤
①
③
①
②
③
A
B
To Next Page
Loading...
