Adjustment Of The Thread Tension - HIGHLEAD HLK-3020 Instruction Manual Parts Catalog

★ Please make sure to always operate the sewing machine with the safety guards．
★ Please do not put unnecessary articles except for the sewing operation on the tabletop．
★ Please keep the hands and the face away
from the needle．
(1) Turn the power switch①ON.
The collision may be happened with
the work holder and the presser foot
depending on the work holder shape
when the work holder is moved to
original position.
(2) When the start switch ② (left) is
pressed，the work holder③will go
down ,the operation will start .
For the details ,please refer to the instructions
on the technical manual [Operation Panel].
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Adjustment of the thread tension

The thread tension between the upper and bosom thread should be balanced in the best condition．
When the upper thread tension is well balanced with the bobbin thread tension， both threads are interlocked
along the centerline of fabric layers as shown on the below figures．
NOTE Normally weaker bobbin thread tension brings better sewing quality．
So it is prefer to set bobbin thread tension first and then set upper thread tension．
(1) Bobbin thread tension
Adjust the bobbin thread tension
with the thread tension adjusting
screw ② on the bobbin case
①．The thread tension becomes
loose if turn the thread tension
adjusting screw②to the counter
clockwise， and the thread tension
becomes tight if turn it to the
clockwise．
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