Tension Adjustment Dial - Brother PS3734T Operation Manual

Tension adjustment dial

There is a thread tension dial for each needle
thread, the lower looper thread and the upper
looper thread. The correct thread tension may
vary according to the type and thickness of the
fabric and the type of thread used. Thread tension
adjustments may be necessary for any change in
sewing materials.
1 2 3 4
1 Yellow marked tension disc is for left needle.
2 Pink marked tension disc is for right needle.
3 Green marked tension disc is for upper looper.
4 Blue marked tension disc is for lower looper.
Tension control
Sewing is possible at position "4" for most
circumstances. (Standard: SPAN 60/3Z)
If the stitch quality is insufficient, select a different
tension setting.
<A> Tension selection mark
1 For heavy tension: 4 to 7
2 For light tension: 4 to 2
3 For medium tension: 5 to 3
If you cannot find the correct tension, refer to the
charts on following pages.
CAUTION
Make sure that the thread is properly seated in the
tension discs.
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