HIGHLEAD HLK-03, Instruction Manual

Page: 21 / 62

16
7-6 Adjustment of the thread guide
(1) Remove the E-shaped snap ring
○
3 which is engaging the movable knife
○
2 and the link
○
1 then
，
loosen
the setscrews
○
4 and remove the sliding plate(S)
○
5
．
(2) Loosen the setscrews
○
10 and move the thread guide
○
6 to the position where the needle center line
○
8
divides the needle groove
○
7 evenly and the rear side line
○
9 of the needle is aligned with the shoulder
of the thread guide
○
6
．
At this time
，
make sure that there is some clearance between the hook retainer
and the thread guide
○
6 at least the upper thread can be passed smoothly through 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
○
2 with the
E shaped snap ring
○
3 and put the sliding plate(S)
○
5 back on the original location then
，
tighten the
setscrews
○
4
．
At this time
，
set the sliding plate(S)
○
5 so that the needle
○
11 can come down to the
center
○
12 of the needle hole of the needle plate
．