27
Balancing the thread tension
z
Set the tension dials as follows:
【
1
】
For Triple top cover stitch
q
Left needle thread tension dial:
4
w
Center needle thread tension dial:
4
e
Right needle thread tension dial:
4
r
Top cover stitch thread tension dial:
4
t
Looper thread tension dial:
4
【
2
】
For Narrow 3 mm (right)
q
Left needle thread tension dial:
-
w
Center needle thread tension dial:
4
e
Right needle thread tension dial:
4
r
Top cover stitch thread tension dial:
4
t
Looper thread tension dial:
4
【
3
】
For Wide 6 mm
q
Left needle thread tension dial:
4
w
Center needle thread tension dial:
-
e
Right needle thread tension dial:
4
r
Top cover stitch thread tension dial:
4
t
Looper thread tension dial:
4
x
Check the tension balance by test stitching on the
same fabric and threads as actual garment.
Fine-tune the tension as necessary.
Balanced tension
The rows of stitches on the right side of the fabric are
straight and even. The looper thread forms the dual rows
of squares with diagonals.
q
Wrong side of the fabric
w
Looper thread
e
Left needle thread
r
Center needle thread
t
Right needle thread
y
Top cover stitch thread
u
Right side of the fabric
Adjusting the needle thread tension
(A) If the needle thread tension is too loose:
Tighten the needle thread tension, and/or loosen the top
cover thread tension to correct it.
(B) If the needle thread tension is too tight:
Loosen the needle thread tension, and/or tighten the top
cover thread tension to correct it.
q
w
t
e
(A)
(B)
4
4
4
4
4
q w e r
t
【
1
】
4
4
4
4
【
2
】
【
3
】
4
4
4
4
u
q w e r
t
q w e r
t
z x
Sewing direction
r
y
(A)
(B)
Adjusting the looper thread tension
(A) If the looper thread tension is too loose:
Tighten the looper thread tension, and/or loosen the
needle thread tension and the top cover thread tension to
correct it.
(B) If the looper thread tension is too tight:
Loosen the looper thread tension, and/or tighten the
needle thread tension and the top cover thread tension to
correct it.
Summary of Contents for CoverPro 3000
Page 2: ...Instruction Book...
Page 25: ...22 Threading the Top Cover Stitch Guides and Spreader...
Page 48: ......
Page 49: ...778 800 055 EN...
