typical TW3-P335 - Upper Feed & Tension Release; Bobbin Winder

1717
1818
1919
1.Lower the presser foot on the needle plate;
2.Loosen the screw 2 until the feed eccentric wheel
can merely turn;
3.Adjust the feed eccentric wheel 3 as required;
4.Tighten the screw 2;
5.Test as required.
When the stitch length is at the max and the
presser foot touches the needle plate, the
walking foot and the needle should reach the
needle plate simultaneously.
18. Adjusting the upper feed(Fig.17)
When the presser foot is lifted up, there must be
a clearance of 0.5mm between the two tension
plates ( the minimum clearance is 0.5mm,
when sewing with thick thread, it should be
adjusted to 1mm,or more.
). Adjust the adjusting
plate as required.
When the presser foot is lifted up, there must be
a clearance of 0.5mm between the two tension
plates ( the minimum clearance is 0.5mm,
when sewing with thick thread, it should be
adjusted to 1mm,or more.
). Adjust the adjusting
plate as required.
19. Needle thread tension releasing(Fig.18)19. Needle thread tension releasing(Fig.18)
1. When the winder switches on, its spindle must
engage reliable;when the winder switches off,
the friction wheel 5 and the driving wheel 1
should get apart;
2. When the thread is approx. 1mm from the edge
of the bobbin, the winder will switch off
automatically;
3. When operating, insert the bobbin to the winder,
thread the bobbin thread and switch the winder
on.Adjust the pin 3 and the screw 4 as required.
1. When the winder switches on, its spindle must
engage reliable;when the winder switches off,
the friction wheel 5 and the driving wheel 1
should get apart;
2. When the thread is approx. 1mm from the edge
of the bobbin, the winder will switch off
automatically;
3. When operating, insert the bobbin to the winder,
thread the bobbin thread and switch the winder
on.Adjust the pin 3 and the screw 4 as required.
20. Bobbin winder (Fig.19)20. Bobbin winder (Fig.19)