S-4000 LT
1-36
Revised 10/2004
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T h e f ir s t l o o p e r a d j u s t m e n t
1.
Bring the machine to the home position and
loosen the screws
of the looper cam
➑
and
adjust the looper cam to the lowest position.
2.
Loosen the looper set screw
and turn the
looper to be perpendicular to the hole in the
looper holder.
3.
Install the holder with the first looper
on the
shaft.
4.
Loosen the looper holder screw
and move
the holder so that the needle passes the
looper in the center of the looper recess. There
must be clearance 0,4 mm between the needle
and the looper recess. Tighten the looper holder
screw
.
5.
Loosen the looper screw
and turn the looper
to the needle to obtain the distance 0,1 mm
between the needle and the looper tip.
6.
Turn the hand wheel counter clockwise and
insert the gauge
with 1 mark (wider side of
the gauge) between the needle bar holder and
the needle bar clamp when the needle returns to
the home position from the lower position.
7.
Check to determine if the tip of the looper is at
the centerline of the needle 1 mm above the
needles eye.
8.
If incorrect - loosen the looper cam screw
by
the wrench and hold it . Turn the hand wheel
(counter clockwise - if the looper tip is higher
than1 mm; clockwise - if less than 1 mm).
Tighten both looper cam screws
securely.
9.
If it is necessary to adjust the looper cam again,
check the clearance 0,4 mm between the needle
and the looper recess.
1 .
3 .
4 .
5 .
6 .
7 .
E - MACHINE ADJUSTMENTS