Singer 3321 matri User Manual

Thread Tension
21
BA
C
D
1
Upper thread tension
Lower thread tension
Please note:
Basic thread tension setting: "4". (1)
To increase the tension, turn the dial to the next number up.
To reduce the tension, turn the dial to the next number down.
A. Normal thread tension for straight stitch sewing.
B. Thread tension too loose for straight stitch sewing. Turn
dial to higher number.
C. Thread tension too tight for straight stitch sewing. Turn
dial to lower number.
D. Normal thread tension for zig zag and decorative sewing.
Correct thread tension is when a small amount of the
upper thread appears on the bottom side of fabric.
- Proper setting of tension is important to good sewing.
- There is no single tension setting appropriate for all stitch
functions, thread or fabric.
- A balanced tension (identical stitches both top and bottom) is
usually only desirable for straight stitch construction sewing.
- 90% of all sewing will be between "3" and "5".
- For zig zag and decorative sewing stitch functions, thread
tension should generally be less than for straight stitch
sewing.
- For all decorative sewing you will always obtain a nicer
stitch and less fabric puckering when the upper thread
appears on the bottom side of your fabric.
The bobbin tension has been set correctly at the factory, so
you do not need to adjust it.
EN

Singer 3321 matri Specifications

General

Type	Mechanical
Stitch Options	21
Needle Position	Variable
Free Arm	Yes
Stitch Width	5 mm
Adjustable Stitch Length	Yes
Adjustable Stitch Width	Yes
Buttonhole Styles	1
Max Stitch Length	4 mm
Max Stitch Width	5 mm
Warranty	25-year limited