13] THREAD TENSION
◆ Adjusting the needle thread tension
Adjusting the needle thread tension by thread
tension nut ①.
To increase the needle thread tension, turn
the nut to the clockwise Ⅰ.
To decrease the needle thread tension, turn
the nut to the counterclockwise Ⅱ.
◆ Adjusting the bobbin thread tension
To adjust the bobbin thread tension
1. Loosen screw ①.
2. Adjust the bobbin thread tension by turning
screw ②.
To increase the bobbin thread tension, turn
the screw to the clockwise Ⅰ.
To decrease the bobbin thread tension, turn
the screw to the counterclockwise Ⅱ.
3. After the bobbin thread tension has been
adjusted, tighten screw ① firmly.
14] THE THREAD TAKE-UP SPRING
The standard stroke of thread take-up spring ①
is 8 to 15 mm.
To adjust the operating range;
1. Loosen screw ②.
2. Adjust the operating range by moving thread
the take-up spring adjusting plate ③ up and
down.
3. After adjustment has been completed,
tighten screw ② firmly.
15] ADJUSTING THE PRESSER FOOT PRESSURE
The standard height of presser spring regulator ①
30mm above the main unit surface.
The presser foot pressure for the presser foot and
walking foot can be adjusted according to the material
to be sewn.
To adjust the presser foot pressure
1. Loosen the presser spring regulator nut.
2. Turn the presser spring regulator clockwise to inc
-rease the pressure of the presser foot, or count
-erclockwise to decrease it.
3. After adjustment has been completed, turn the nut
firmly, making sure to keep it securely in place.
・ Use a minimum amount of required pressure.
①
Ⅰ
Ⅱ
①
②
Ⅰ
Ⅱ
②
①
③
①
30mm
- 6 -
Summary of Contents for CS-471
Page 12: ...memo 13 ...
