49
4-Thread Overlock with integrated
safety seam
• Correct balance
–
Set each tension dial to recommended setting
and test sew on a sample of your fabric.
• How to balance the thread tension
When the upper looper thread lies on the underside of
the fabric;
–
Turn the upper looper thread tension dial (blue)
toward a higher number.
–
Or, turn lower looper thread tension dial (red) to
a lower number.
PLEASE NOTE:
–
These are suggested tension settings only.
–
Tension settings are effected by;
1. Type and thickness of fabric
2. Needle size
3. Size, type and fiber content of thread
When the lower looper thread appears on the top of
the fabric;
–
Turn the lower looper thread tension dial (red)
toward a higher number.
–
Or, turn the upper looper thread tension dial
(blue) toward a lower number
When the left needle thread tension is too loose;
–
Turn the needle thread tension dial (yellow)
toward a higher number.
When the right needle thread tension is too loose;
–
Turn the right needle thread tension dial (green)
toward a higher number.
Thread Color Code Refer page 21.
NP
Refer page 15
N/R
N
Refer page 14/15
SL
2.5-4
Refer page 33
CL/UL
UL
Refer page 42
ULC
–
Refer page 14
4-Thread Overlock
with integrated safety seam
Medium weight
fabric
Thread tension dial
Yellow
Green
Blue
Red
Violet
4.0
4.0
4.0
4.0
1
4
3
2
1
4
3
2
1
4
3
2
1
4
3
2
6
5
6
5
6
5
6
5
1
4
3
2
1
4
3
2
1
4
3
2
1
4
3
2
6
5
6
5
6
5
6
5
1
4
3
2
1
4
3
2
1
4
3
2
1
4
3
2
6
5
6
5
6
5
6
5
1
4
3
2
1
4
3
2
1
4
3
2
1
4
3
2
6
5
6
5
6
5
6
5
