28. OPERATION SWITCHES
1
2
2 Alternating vertical movement amount change-over switch
If this switch is pressed the amount of the alternating vertical movement of the walking foot and the presser foot
will be maximized. (The lamp locating inside the button will light up.)
Use this switch when a multilayered portion of the sewing product is not smoothly fed.
When performing the alternating vertical movement amount change-over with the knee switch, fix the knee switch
supplied with the machine on the table with wood screws and use it.
For the wiring, refer to "INSTRUCTION MANUAL (SUPPLEMENT) for sewing machines for leather and heavy-
weight materials".
3 Automatic reverse feed stitching cancellation/addition switch
•
If this switch is pressed when the following automatic reverse feed stitching has been specified, the reverse
stitching will not take place (for once immediately after it is pressed). (Example 1)
•
If this switch is pressed when no automatic reverse feed stitching has been specified, the reverse feed stitching
will take place (once immediately after it is pressed). (Example 2)
(Example ) In the case where both automatic reverse feed stitching for start and that for end have been specified :
A
B
C
D
If the
switch is pressed before starting
sewing, the automatic reverse feed stitching for
start (between A and B) will not be carried out.
(Example ) In the case where neither automatic reverse feed stitching for start nor that for end have been specified :
If the
switch is pressed before starting
sewing, the automatic reverse feed stitching for
start (between A and B) will be carried out.
4 Needle lifting switch
If this switch is pressed, the machine will travel from the needle-down stop position to the needle-up stop position.
When raising the machine head which has been tilted, do not hold the operation switch to raise it.
4
3
C
D
A
B
− −
1 One-touch type reverse feed switch
•
While the machine is in operation, the machine
performs reverse feed stitching as long as this
switch is held pressed, and resumes normal feed
stitching when the switch is released.
•
If this switch is pressed while the machine is at
rest, the feed will be set to the reverse feed state.
(The sewing machine does not run.)
If it is released, the feed will return to the normal
feed state.
A
B
D C
If the
switch is pressed during sewing, the
automatic reverse feed stitching for end (between
C and D) will not be carried out.
If the
switch is pressed during sewing, the
automatic reverse feed stitching for end (between
C and D) will be carried out.
A
B
C
D
