HIGHLEAD GC20688-BDC, Инструкция по эксплуатации

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p
11
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rotection 1 without being displaced.
looping stroke position the hook tip is at the level of
th eedle against hook protection 1 manually. The needle should not touch the
dle and feed mechanism timing
tion
west position. Then adjust so that the needle and the feed dog do not move even when the reverse lever
r cover 1.
ent dial to the maximum
settin
rn the lower feed cam 3 gradually until it is at the position where the needle and the feed dog do not
mov oved up and down.
n
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
Move needle in looping stroke position by pulley. In
e middle of the needle. Press n
hook tip.
21) Adjusting the nee
(1) Horizontal feed direc
Set the feed adjustment dials to the maximum settings. Then turn the machine pulley until the needle bar is
at its lo
is moved up and down at this time.
a. Remove the bed uppe
b. Set the feed adjustm
gs.
c. Loosen the two screws 2.
d. Turn the machine pulley until the needle bar
is at its lowest position.
e. Tu
e even when the reverse lever is m
f. Tighten the two screws 2.
(2) Vertical feed directio
Set