– 6 –
6. Adjusting stroke of main feed dog
[Checking items]
1
Feed dog
2
Throat plate
* Adjust the stitch length to 1 mm.
* Turn the handwheel to move the feed dog up and down.
Check that the moving amount of feed dog
1
is 1.2 ± 0.2
mm
A
when the teeth tip of the feed dog is aligned with the
top surface of throat plate
2
during its upward/downward
movement.
[How to perform adjustment]
○ Loosen the setscrews
D
of the horizontal feed regulator
C
.
○ Turn the horizontal feed regulator
C
so that the moving
amount of main feed dog
1
is 1.2 ± 0.2 mm
A
.
○ Tighten the setscrews
D
.
2
1
A
D
C
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