NP
N/R
N
SL
2.5-4
CL/UL
UL
ULC
–
Thread Color Code Refer page 21.
1
1
1
5
5
5
1
1
1
5
5
5
1
1
1
5
5
5
Refer page 15
/
Refer page 14/15
Refer page 33
Refer page 42
Refer page 14
2
2
2
3 4
3 4
3 4
6
6
6
2
2
2
3 4
3 4
3 4
6
6
6
2
2
2
3 4
3 4
3 4
6
6
6
3-Thread Flatlock
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
•
Correct balance
–
Set each tension dial to recommended setting
and test sew on a sample of your fabric.
3-Thread Flatlock, narrow
Medium weight
fabric
Yellow
3-Thread Flatlock, wide
Medium weight
fabric
Yellow
0
•
How to balance the thread tension
When the lower looper thread tension is too loose;
–
Turn the lower looper thread tension dial (red)
toward a higher number.
When the upper looper thread tension is too loose;
–
Turn the upper looper thread tension dial (blue)
toward a higher number.
When the needle thread tension is too loose;
–
Turn the needle thread tension dial (yellow or
green) toward a higher number.
–
Or, turn the upper looper thread tension dial
(blue) toward a lower number.
Thread tension dial
Green
Blue
Red
Violet
0
4.5
6.5
Thread tension dial
Green
Blue
Red
Violet
4.5
7.0
47