S-7220C
8. STANDARD ADJUSTMENTS
38
8-5. Adjusting the feed dog angle
The standard angle is for the feed dog (1) to be parallel to the
needle plate when the machine pulley is turned forward to
raise the feed dog (1) from its lowest position until it is flush
with the top of the needle plate.
1. Turn the machine pulley forward to raise the feed dog (1)
from its lowest position until it is flush with the top of the
needle plate, and stop turning the pulley at that point.
2. Tilt back the machine head.
3. Loosen the two set screws (4).
4. Turn the shaft (2) in the direction of the arrow within a
range of 90° with respect to the standard position. (Fig.
[C])
・
In order to prevent puckering, lower the front of the
feed dog (1).
・
In order to prevent the material from slipping, raise the
front of the feed dog (1).
5. Securely tighten the set screws (4).
* If you would like to tilt the feed dog (1) further, turn the
feed lifting rock bracket stud (5) while carrying out the
above adjustment. (Fig. [D])
(Refer to “8-4. Adjusting the feed dog height” on the
previous page for details of this operation.)
* The height of the feed dog (1) will change after the angle
has been adjusted, so it will be necessary to re-adjust the
height of the feed dog (1).
0577D
3769M
3770M
Back is lowered
Back is raised
Raise the front
Lower the front
Needle
plate
Parallel
Raise the front
Lower the front
Raise the front
Lower the front
