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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 0.05～0.1 mm at above
procedure
7-3
clearance between the shuttle hook and
the needle．
(3) Loosen the driver setscrew
○
and the needle
4 can become 0．
(4) After the adjustment， securely tighten the driver setscrew
back to the original location then，close the cylinder cover
7-5 Adjustment of the thread guide
(1) Remove the E-shaped snap ring
○
the setscrews
4 and remove the sliding plate(S)
(2) Loosen the setscrews
divides the needle groove
○
shoulder
9 of the thread guide
hook retainer and the thread guide
it(standard clearance is 0.8mm)．If this clearance is too wide，it causes the trimming failure and if this
clearance is too narrow， it causes the sewing condition disturbance， the trimmed upper thread tail uneven
and the locking up the hook with the upper thread．
(3) After the adjustment，engage the
○
link
1 of the trimmer mechanism
with the movable knife
the E shaped snap ring
the sliding plate(S)
original location then，tighten the
○
4 ． At this time， set the
setscrews
sliding plate(S)
○
needle
11 can come down to the
○
center
12 of the needle hole of the
needle plate．
From the library of: Superior Sewing Machine & Supply LLC
Adjustment
of
the
○
1 and turn the eccentric pin
○
3 which is engaging the movable knife
○
10 and move the thread guide
○
7 evenly and the rear side line
○
6 ．At this time，make sure that there is some clearance between the
○
6 at least the upper thread can be passed smoothly through
○
2 with
○
3 and put
○
5 back on the
○
5 so that the
—
○
2 so that the clearance between the driver
○ 1 and put the hook retainer and the bobbin case
○
5 ．
○
．
5
○
6 to the position where the needle center line
○
9 of the needle is aligned with the
15
—
○
○
2 and the link
1 then，loosen
○
3
○
8
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