4-Thread Coverstitch - Bernette b48 FUNLOCK Instruction Manual

NP
N/R
R
SL
3-4
CL/UL
CL
ULC
–
Thread Color Code Refer page 21.
4
4
4
5
5
4
5
5
4
4
4
5
5
4
5
5
4
4
4
5
5
4
5
5
4
4
4
5
5
4
5
5
Refer page 15
Refer page 14/15
Refer page 33
Refer page 42
Refer page 14
3
2
3
2
3
2
3
2
1
1
6
1
6
3
2
6
1
3
2
6
3
2
3
2
1
1
6
1
6
3
2
6
1
3
2
6
3
2
3
2
1
1
6
1
6
3
2
6
1
3
2
6
3
2
3
2
1
1
6
1
6
6
1
6

4-Thread Coverstitch

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
– Stitch length for coverstitch should be set at
•
over " " (2.5 mm).
• Correct balance
– Set each tension dial to recommended setting
and test sew on a sample of your fabric.
4-Thread Coverstitch, narrow
Medium weight
fabric
Yellow
Polyester
3.0
• How to balance the thread tension
When the coverstitch looper thread is too loose;
– Turn the coverstitch looper thread tension dial
(violet) toward a higher number.
When the coverstitch left needle thread tension is too
loose;
– Turn the coverstitch left needle thread tension
dial (yellow) toward a higher number.
– Or, turn coverstitch looper thread tension dial
(violet) toward a lower number.
When the coverstitch center needle thread tension is
too loose;
– Turn the coverstitch center needle thread
tension dial (green) toward a higher number.
– Or, turn coverstitch looper thread tension dial
(violet) toward a lower number.
When the coverstitch right needle thread tension is too
loose;
– Turn the coverstitch right needle thread tension
dial (blue) toward a higher number.
– Or, turn the coverstitch looper thread tension
dial (violet) toward a lower number.
When the top surface of fabric bulges between needle
threads and the seams on the underside of the fabric
becomes tight;
– Turn the coverstitch looper thread tension dial
(violet) toward a lower number.
Thread tension dial
Green Blue Red Violet
6.0 6.5 4.0
55