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Adjusting the thread take-up amount
Using the standard thread amount adjuster (1)
● Do not pass the thread through the thread amount
adjuster (1), Loosen the screw (2) and slide the
thread amount adjuster (1) to the right-side position.
● Pass the thread through the thread amount adjuster
(1). The standard position of the thread amount
adjuster (1) is when the screw (2) is in the center of
the adjustment range.
Adjusting the thread take-up amount
When the thread has been passed through the thread
amount adjuster (1), the thread take-up amount
becomes less when the thread amount adjuster (1) is
moved to the right.
It is better not to pass the thread through the thread
amount adjuster
● When sewing heavy materials using a sewing
machine with foundation specifications.
● When the thread take-up amount is not enough,
such as when the stitch length is increased.
It is better to pass the thread through the thread
amount adjuster
● When sewing with slippery threads such as synthetic
yarns
● When sewing light materials
● When sewing with a stitch length of 2 mm or less
Guide to adjustment
The standard thread take-up amount is when the
thread tension spring (3) starts to move when the loop
is moved to point (B) which is slightly in front of point (A)
where the rotary hook tip catches the upper thread loop
and the rotary hook thread amount is at its aximum.
● If the thread take -up amount is too large, the thread
tension spring (3) will not start to move even after
point (A) is passed This can cause skipped stitches,
poor thread tightening and thread breakages.
● If the thread take -up amount is too small, the thread
take-up spring (3) will start moving before point (B)
This can cause thread breakages, overtightening of
the upper thread and pulling of the seam.
The thread take-up amount required will vary
depending on the type of thread, the thickness of the
material and the stitch length, so adjust the thread
take-up amount to suit the sewing conditions.
P16
Thread take-up amount is too large
Start of
movement
Thread take-up
amount is too small
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