Baby Lock Diana BL480A Instruction And Reference Manual page 51

10. Cover Stitch (3-Thread) Wide/Narrow
Tension settings may be effected by :
1) Type and thickness of fabric
2) Needle size
3) Size, type and fiber content of thread
Stitch length for cover stitch should be set at over N (2.5mm)
Note: These are suggested tension settings only.
Correct Balance
Set auto tension dial to K or H shown at right and test sew on a
sample of your fabric.
How to Balance
When the cover stitch looper thread is too loose;
1
-Turn the cover stitch looper thread tension fine tuning lever
(Purple) toward the "+".
2 When the cover stitch left needle thread tension is too loose;
-Turn the cover stitch left needle thread tension fine tuning
lever (Red) toward the "+".
-Or, turn cover stitch looper thread tension fine tuning lever
(Purple) toward the "-".
When the cover stitch right needle thread tension is too loose;
3
-Turn the cover stitch right needle thread tension fine tuning
lever (Yellow) or (Red) toward the "+".
-Or, turn the cover stitch looper thread tension fine tuning lever
(Purple) toward the "-".
When the top surface of fabric bulges between needle threads
4
and the seams on the underside of the fabric becomes tight;
-Turn the cover stitch looper thread tension fine tuning lever
(Purple) toward the "-".
Note: If the tension needs to be increased gently move the tension
adjustment lever toward the "+" mark in increments indicated
by the smaller white dots on the colored fine tuning label on
front cover.
If the tension needs to be decreased gentily move the tension
adjustment lever toward the "-" mark in increments indicated
by the smaller white dots on the colored fine tuning label on
front cover.
NEEDLE POSITION
AUTO TENSION DIAL
SEAM WIDTH FINGER KNOB
STITCH LENGTH
DRIVING CULTCH POSITION
CONVERTER
NARROW
Cover stitch
looper Thread
Polyester
Woolly nylon
WIDE
Cover stitch
looper Thread
Polyester
Woolly nylon
Cover stitch right needle thread
Cover stitch
Left needle thread
Topside
1
Cover stitch
Left needle thread
Topside
2
Cover stitch
Left needle thread
Topside
3
Cover stitch
Left needle thread
Topside
4
Cover stitch
Left needle thread
Topside
50
NARROW
Tension Dial: K
Red Yellow Green Blue
Tension Dial: H
Red Yellow Green Blue
Cover stitch
looper thread
Underside
Cover stitch right needle thread
Cover stitch
Underside
Cover stitch right needle thread
Cover stitch
Underside
Cover stitch right needle thread
Cover stitch
Underside
Cover stitch right needle thread
Cover stitch
looper thread
Underside
WIDE
K or H
R
N~4
C
N/A
Purple
Purple
looper thread
looper thread
looper thread