Hikari HK2900, Instruction Manual

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set the needle bar ① to the lowest point, unscrew needle bar fastening screws ② , make
the engraved lines ④ and the underside of needle bar stopper ③ at the same lever.
Only F specification, adjust the needle bar engraved lines ④ 0.8mm ‐ 1mm lower to the
center position.
※
when skip stitch occurs in some sewing condition, please adjust the needle bar engraved lines
④ 0.5mm ‐ 1mm lower.
2. Needle and rotary hook
1) Turn the pulley by hand, when the needle bar
①
rise, make under engraved lines
②
aligned the
front side of needle bar under stopper .
2) Loosen drive screws
①
,open the tablet
②
,
remove the hook presser
③
.
be careful not to fall off the hook
④
.
3) In order to allow the hook
④
point and the
center of the needle
⑤
consistent, while
preventing the front end of drive
⑥
collide
needle to curve it, make sure there is no gap
between them, and then tighten drive screws
①
.
4) Loosen the big hook
⑦
, turning hook adjustment
shaft
⑧
left and right, adjusting the front and back
position of the big hook, the gap between the needle
⑤
and the hook
④
tip is adjusted to 0.05 ‐ 0.1mm.
5) After adjusting the position of the big hook,the gap
between the needle and the hook should be 7.5mm,
and then tighten the big hook screw
⑦
.