10
【
7
】
ADJUSTING THE FEED DOGS & STITCH LENGTH
7777----1 Feed dog height
1 Feed dog height
1 Feed dog height
1 Feed dog height
When the feed dogs are at the top of their stroke, the
feed dog teeth should be 0.8~1.2mm above the top
surface of the needle plate.
Adjustment is made by loosening screws A and B.
7777----2 Stitch length
2 Stitch length
2 Stitch length
2 Stitch length
Loosen bolt A with a 9.5mm T wrench and turn screw
B as required. To increase the stitch length, turn
screw B counterclockwise.
To decrease the stitch length, turn screw B clockwise.
7777----3 Differential feed ratio
3 Differential feed ratio
3 Differential feed ratio
3 Differential feed ratio
Remove rubber plug C. Loosen nut D.
To increase the differential feed ratio, move nut D
up.
To decrease the differential feed ratio, move nut D
down.
