HIGHLEAD GC20688 Series, Инструкция и список запасных частей

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d. Turn the machine pulley until the needle bar
is at its lowest position.
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