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12
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e. Turn the lower feed cam 3 gradually until it is at the
position where the needle and the feed dog do not move even when the reverse lever is moved up and
down.
f. Tighten the two screws 2.
(2) Vertical feed direction
Set the feed adjustment dials to the minimum settings. Then adjust as follows so that the feed dog 1 is at its
highest position (0.5mm above the top of the needle plate 2) when the needle bar is at its lowest position.
a. Loosen the two screws 3
b. Turn the machine pulley to set the needle bar to its lowest position.
c. Turn feed cam 4 to align the point 5 of feed cam 4 with the centerline of feed rod 6
d. Tighten the screws 3
22)
Adjusting the opener position
Adjust so that the clearance between the needle plate 3
and the stopper 4 of the inner rotary hook 2 is 0.5-0.7
mm when the opener 1 is at its closest position to the
inner rotary hook 2.
(1) Turn the machine pulley to move the opener 1 in
direction “a” (opening direction), and then loosen the
screw 5
(2) Turn the machine pulley to move the opener 1 in
direction “b” (closing direction), and then loosen the
screw 6.
(3) Turn the machine pulley to move the opener 1 as
close to the inner rotary hook 2 as possible.
(4) While pressing the opener 1 against the inner
rotary hook 2 with your finger, adjust so that the
clearance between the needle plate 3 and the stopper 4 of
the inner rotary hook 2 is 0.5-0.7 mm.
(5) Tighten the screw 6.
(6) Turn the machine pulley to move the opener 1 in direction “a” (opening direction), and then tighten the
screw 5.
23)
Adjusting the presser foot height
The standard height of the outer presser foot 7 is 9 mm when it is raised by the presser lifter bar 1.
(1) Remove the belt cover.
From the library of: Superior Sewing Machine & Supply LLC
