–
19
–
Adjustment Procedure
Results of Improper Adjustment
Checking items:
1
Right hand needle
2
Throat plate
3
Sub feed dog
* Adjust the stitch length to 2.5 mm. Set the differential feed ratio at "N".
When sub feed dog
3
and right needle
1
go up, check that the tip of
right needle
1
and tip of the teeth of sub feed dog
3
are simultane-
ously aligned with the top surface of throat plate
2
.
How to perform adjustment:
○
Loosen the setscrews (A).
○
Rotate the feed excenter cam (B) to make adjustment.
○
Retighten the setscrews (A).
If this timing is not properly adjust-
ed, needle breakage, puckering
and incorrect feed amount can be
caused.
To Next Page
Loading...
Need help?
General
