7
< Note >
After the above adjustment, check to make sure each
needle drops into the center of each needle hole.
<Note>
Make sure the setting distance is not changed when the
looper holder is moved front or back.
5555----4 Needle height
4 Needle height
4 Needle height
4 Needle height
The point of the looper should be 1.2~1.5mm above the
top of the left needle's eye on the back side of the
needle when the point of the looper has reached the
center of the left needle with the machine pulley
turning in the operating direction (see 5-2).
■
To adjust the height of the needle,
1. Set the needle bar at the top of its stroke.
2. Remove the plug on the head cover.
3. Loosen screw A.
4. Move the needle bar up or down.
5555----5 Needle/looper front
5 Needle/looper front
5 Needle/looper front
5 Needle/looper front----to
to
to
to----back relationship
back relationship
back relationship
back relationship
■
2-3U
When point B of the looper reaches left needle C, there
should be a clearance of 0.2~0.3mm between point B of
the looper and left needle C. When point B of the
looper reaches right needle E, they should slightly
touch with each other. Adjustment is made by
loosening screw D on the looper holder. After the
above adjustments are made, the clearance between
the point of the looper and right needle E should be
0~0.05mm with right needle E deflected by the needle guard (rear).
■
004U
When point B of the looper reaches needle C, point B of
the looper should slightly touch needle C.
Adjustment is made by loosening screw D on the looper
holder. After the above adjustments are made, the
clearance between point B of the looper and needle C
should be 0~0.05mm with needle C deflected by the
needle guard (rear).
