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8
】
ADJUSTING THE FEED DOG & STITCH LENGTH
8-1 Feed dog height & tilt
When the feed dog is at the top of its stroke,
the feed dog teeth should be 1.0~1.2mm
above the top surface of the needle plate.
Adjustment is made with screw A.
The fine tilt adjustment is made by
loosening nut C and turning screw B.
8-2 Left and right feed dog height
Feed dog divides between left and right side.
( See the illustration ), left side feed dog D
and right side feed dog E can be adjusted
independently.
When the bottom of left feed dog D bring
down to the pin F, both left and right feed dog height would be same. In case of the
adjustment, loosen screw A and make the left feed dog higher than the right side how
much the angle of the curved waist band is.
Original both feed dog position at the beginning are set to the same height.
8-3 Stitch length
The stitch length can be adjusted from 2 to 5mm
with no step. The following table shows the stitch
length with the number of stitches within 1 inch
(25.4mm) and 30mm.
No. of stitches
Stitch
length(mm
)
within 1"
within 30mm
2 13 15
3 8.5 10
5 5 6
< To change the stitch length >
1.
Loosen bolt A while checking the direction in
which the bolt is loosened.
2.
Insert a screwdriver from hole C.
To decrease the stitch length, turn screw B clockwise. To increase the stitch length,
turn screw B counterclockwise.
3.
After this adjustment is made by turning screw B, be sure to tighten screw A.
< Note >
Be sure turn off the motor when changing the stitch length.
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