Adjustment Of The Position Between The Needle And The Shuttle Hook - HIGHLEAD HLK-3020 Instruction Manual Parts Catalog

7-2 Adjustment of the position between the needle and the shuttle hook

(1) Turn the power switch OFF．
(2) Turn the sewing machine pulley by
hand then，move up the needle bar①
from the lowest position and stop it at
the position②where the needle bar
timing mark C is matched to the
needle bar bushing bottom line．
NOTE：If the needle class is DP×5，
match the needle bar timing mark D to
the needle bar bushing bottom line②．
(3) Open the cylinder cover②．
(4) Remove the bobbin case③．
(5) Turn the hook retainer lever⑤then，
remove the hook retainer⑥．
(6) Loosen the driver setscrew○ 9 then，
move the driver(No.10)and adjust the
shuttle hook point⑦to be matched
with the center line⑧of the needle．
(7) After the adjustment，tighten the driver setscrew⑨and put the bobbin case④，the hook retainer⑥and
the hook retainer lever⑤back to the original location then close the cylinder cover⑨.
7-3 Adjustment of the clearance between the shuttle hook and the needle
(1) Please take the same procedures as above paragraph 7-2．from(1) to(5)．
(2) Loosen the outer hook setscrew③and turn the eccentric pin④so that the clearance between the shuttle
hook point and the needle becomes 0.05～0.1 mm．
(3) After the adjustment，securely tighten the outer hook setscrew③and put the hook retainer and the
bobbin case back to the original location then，close the cylinder cover⑤．
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