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
maferial sliding and no breakage of bobbin thread.
.
.
.
24.Feed dog horizontal Adjustment (Fig 30)
31
-12-
30
29
25. Stitich length error adjustment (Fig 31)
Loosen Screw (A), and turn stitch length adjusting
cam (B).
Turn clockwise: forward sewing, stitch length
enlarged; reverse sewing, stitch length shorten.
Turn counter-clockwise: forward sewing, stitch
length shorten; reverse sewing, stitch length enlarged.
.
.
.
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
direction shown by arrow (Fig.29a) to adjust. After
adjustment tighten Screw(A). .
a
B
A
b
Eccentric shaft mark position
Clock wise
counter
Feed dog
Horzontal
Mark
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