OTHER BASIC PROCEDURES
125
3
d
After making the adjustments, try
embroidering with all needle bars to check
the thread tension.
Adjusting the tension of the
upper thread
When embroidering, the thread tension should be
set so that the upper thread can slightly be seen on
the wrong side of the fabric.
a
Turn the thread tension knobs.
1
Thread tension knobs
2
Tighter
3
Looser
4
Mark
→
If the thread tension is not still correctly adjusted,
turn the upper thread guide pretension knob.
1
Upper thread guide pretension knob
2
Tighter
3
Looser
■
Correct Thread Tension
The pattern can be seen from the wrong side of the
fabric. If the thread tension is not set correctly, the
pattern will not finish well. The fabric may pucker or
the thread may break.
1
Right side
2
Wrong side
Follow the operations described below to adjust
thread tension according to the situation.
Memo
• In the built-in embroidery patterns, one
pattern is used for checking the thread
tension. By sewing this pattern, the thread
tension can easily be checked. For details,
refer to page 247.
Note
• If the thread tension setting is made
extremely weak, the machine may stop
during sewing. This is not the sign of a
malfunction. Increase the thread tension
slightly, and begin sewing again.
• If necessary, refer to page 284 for
reassembling the tension unit.