Adjusting The Thread Take-Up Amount - Brother T-8422A Instruction Manual

8. THREAD TENSION

8-4. Adjusting the thread take-up amount

<For all models except foundation
specifications and T-8452A-405>
Do not pass the
thread through.
<For foundation specifications
and T-8452A-405>
Pass the thread
through.
37
2928M
Center
2929M
T-8421A, 8422A, 8452A, 8722A, 8752A
The thread take-up amount is adjusted by how the thread is
passed through the thread amount adjuster (1).
<Using the standard
adjuster (1)>
For all models except foundation specifications and
T-8452A-405
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.
For foundation specifications and T-8452A-405
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 (1):
・ 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 (1):
・ When sewing with slippery threads such as synthetic
yarns
・ When sewing light materials
・ When sewing with a stitch length of 2 mm or less
・ When sewing under any of the above three conditions and
you would like to prevent skipped stitches, thread
tightening problems such as looping, or thread breakages
thread amount