– 7 –
10. PRESSER FOOT AND FEED DOG
Pressure of the presser foot:
Adjust the presser spring regulator
1
for a proper pressure:
1. Turn in the clockwise direction for increasing the pressure.
2. Turn in the counterclockwise direction for reducing the pressure.
It is advisable to set it to about 39.2 N for general cloths.
Presser lifter
1. Turn the hand lifter
2
behind the face plate to either left or right,
and the presser foot will be lifted up.
2. The presser foot is held 5.5 mm above the throat plate.
3. Depress the knee lifter once, and the presser foot will be lowered to
its working position.
4. When using the knee lifter, the presser foot will go up 12 mm
above the throat plate.
Height of the feed dog
The feed dog
3
has been adjusted before shipment to raise 0.9 to 1.0
mm above the top level of the throat plate
4
.
For adjusting the height of the feed dog
3
;
1. Loosen the screw
6
of the feed driving shaft crank
5
.
2. Adjust the feed bar for a proper height by moving it up and down.
3. Securely tighten the screw
6
.
1
2
3
4
5
6
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
0.9 to 1.0 mm
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