－21－
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 setscrew (No.3) and turn the eccentric pin (No.4) so that the
clearance between the shuttle hook point and the needle becomes 0.05~0.1mm.
(3) After the adjustment, securely tighten the outer hook setscrew (No.3) and put the hook
retainer and the bobbin case back to the original location then, close the cylinder cover
(No.5).
7-4. Adjustment of the clearance between the driver and the needle
(1) Please take the same procedures as above paragraph 7-2. from (1) to (5).
(2) Please make sure the clearance between the shuttle hook point and the needle has been
adjusted 0.05~0.1mm at above procedure 7-3 Adjustment of the clearance between the
shuttle hook and the needle.
(3) Tilt the sewing machine head to the left so that the bottom components of the sewing
machine can be seen.
(4) Loosen the driver setscrew (No.1) and turn the eccentric pin (No.2) so that the clearance
between the driver (No.3) and the needle (No.4) can become 0.
(5) After the adjustment, securely tighten the driver setscrew (No.1) and put the hook retainer
and the bobbin case back to the original location then, close the cylinder cover (No.5).
1
2
3
4
0mm
4
2
1
3
5
0.05 ~ 0.1mm
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