26
990D
Correct Setting:
The actual stitch length should be 2.8 to 3.0 mm when the stitch length dial is set at “3” and
differential feed dog at “1.0”.
To adjust:
1. Set the stitch length dial at “3” and the differential feed dial at “1.0”.
2. Remove the front cover unit.
3. If the actual stitch length is longer than 3.0 mm, turn the adjusting screw in the direction A.
If the actual stitch length is smaller than 2.8 mm, turn the adjusting screw in the direction B.
4. Attach the front cover unit.
TO ADJUST THE STITCH LENGTH
Adjusting screw
Direction B
Direction A
Stitch length dial “3”
Differential feed dial
“1.0”
