Types Of Stitches; Tri-Cover Stitch - Brother 2340CV Manual De Instrucciones

IV. Types of stitches
Tri-cover stitch (Three needles four threads cover stitch)
A
Use four threads, three front needles and the looper
thread to sew a 6 mm (15/64 inch) cover stitch.
Use: Ideal for hemming and for decorative stitching.
Threading
• For details on threading the machine, refer to "III.
Threading" on page 9 to 10.
< Threading the left, center and right needle >
< Threading the looper >
Tension adjustments
(1) First, set each thread tension dial to the number
shown below.
Right needle dial
Make sure that the thread is properly seated in
the tension discs by holding the tension release
button to the right while passing the thread
through the tension discs.
(2) Sew a test stitch. (Refer to "V. Sewing" on page 15.)
(3) Adjust the tension of each thread according to the
condition of the stitch.
Balanced tension
The needle thread sews a straight seam on the top
side and the looper thread forms loops on the under
side of the fabric.
Stitching direction
Needle thread is too loose
Turn the needle thread adjusting dial to a higher
number. Or turn the looper adjusting dial to a lower
number for looser tension.
Needle thread is too tight
Turn the needle thread adjusting dial to a lower
number. Or turn the looper adjusting dial to a higher
number for tighter tension.
A Tension selection mark
Left needle dial
(yellow)
4
(green)
4
CAUTION
Center needle dial
(pink)
4
Looper needle dial
(blue)
4
11