-12-
2 4 . F e e d d o g h o r i z o n t a l A d j u s t m e n t ( F i g . 3 0 )
To adjust the position of feed dog, move feed
dog to the front end of throat plate. Loosen Screw
A (See Fig.29b), move feed dog support B in the di-
rection shown by arrow to adjust After adjustment
tighten Screw A.
Feed dog is 0.8~1.2mm above the surface of
throat plate horizontally.
When sewing condition requires tilting, adjust
like this:
loosen Screw A
Press against the slot of eccentric shaft with a
screwdriver to turn eccentric shaft left and right.
Tighten Screw A.
The front of feed dog is higher, which can pre-
vent perckering and no skipping.
The front of it is lower, which can prevent
material sliding and no breakage of bobbin thread.
2 5 . S t i t c h l e n g t h e r r o r a d j u s t m e n t ( F i g . 3 1 )
Loosen Screw (A) and (B), take out the link pin,
and loosen Screw (C) to adjust Cam (D) with a screw-
driver through the crank hole.
Turn right: forward stitch length shorten reverse
stitch length enlarged;
Turn left: forward stitch length enlarged reverse
stitch length shorten.
29
a
B
A
b
C
30
Eccentric shaft mark position
Mark
Feed dog
Horizontal
Above
Under
Standard
The front up to the max
The front down to the max
31
B
A
C
D
