F
Relationship between the needle
motion and the feed dog motion
( 1 ) Set the stitch length to “0” on the feed length
setting dial.
( 2 ) Set the needle at the lowest position.
( 3 ) Lean the machine head backward.
( 4 ) Loosen the feed rock shaft crank set screws
Ⓐ, Ⓑ.
( 5 ) Adjust the distance between the pressure bar
and the vibrating prevention bar to 9mm and
temporary tighten the feed rock shaft crank
set screws Ⓐ, Ⓑ.
( 6 ) Check that the feed rock shaft crank (right)
is connected with the link at a right angle as
shown in the figure.
( 7 ) If the connection is not a right angle, remove
the Rear cover, loosen screw Ⓒ and move the
link to connect the feed rock shaft crank (right)
with the link at a right angle.
( 8 ) After adjusting, fully tighten all screws Ⓐ, Ⓑ,
Ⓒ.
At this time, check that the needle enters the
hole at center of the feed dog.
HOW TO USE
Link
Needle bar
Vibrating prevention bar
Pressure bar
Feed rock shaft crank (right)
9mm
Screw Ⓑ
Screw Ⓒ
Feed rock shaft crank (middle)
Screw
Ⓐ
Screw
Ⓑ
Feed rock shaft crank (right)
Link
— 10 —
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
