Merrylock MK740DSA User Manual

N
2~4
28
5.00.0 8.0
NEEDLE POSITION
SEAM WIDTH FINGER KNOB
STITCH LENGTH
Red
Yellow
Medium
weight
Fabric
Tension Dial
Blue
Green
* 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 settings shown at right and*
test sew on a sample of your fabric.
How to balance
When the lower looper thread tension is too loose;*
- Turn the lower looper thread tension dial (red)
toward a higher number.
- Or, turn the needle thread tension dial
(yellow or blue) toward a lower number.
* When the upper looper thread tension is too loose;
- Turn the upper looper thread tension dial (green)
toward a higher number.
- Or, turn the needle thread tension dial
(yellow or blue) toward a lower number.
* When the needle thread tension is too loose;
- Turn the needle thread tension dial (yellow or blue)
toward a higher number.
-Or, turn the upper looper thread tension dial
(green) toward a lower number.
(3) 3-Thread flatlock
Note: * These are suggested tension settings only.
Upper looper thread
Upper looper thread
Needle thread
Needle thread
Topside
Topside
Underside
Underside
Lower looper
thread
Lower looper
thread

Merrylock MK740DSA Specifications

General

Brand	Merrylock
Model	MK740DSA
Category	Sewing Machine
Language	English