20
6 - 2 L o o p e r l e f t - t o - r i g h t m o v e m e n t
When the looper passes the needle, the point of the
looper, moving to the right, should be 1.5mm above
the top of the needle's eye. When the looper passes
the needle, the point of the looper, moving to the left,
should be 3mm above the top of the needle's eye.
■
For single chainstiching, when the looper enters the
needle thread loop, the point of the looper should be
4mm above the top of the needle's eye.
■
To make this adjustment, remove the cover first,
loosen eccentric set screw D and then move eccentric
ball A.
6 - 3 L o o p e r s e t t i n g d i s t a n c e
When the needle bar is at the bottom of its stroke,
set the distance from the point of the looper to the
center of the needle should be 3mm.
■
Adjustment is made by removing the cover and
loosening screw B on looper front-to-back lever A.
Summary of Contents for DFB Series
Page 6: ...3 Threading diagram for DFB1404 ...
Page 7: ...4 Threading diagram for DFB1406 ...
Page 8: ...5 Threading diagram for DFB1412 ...
Page 9: ...6 Threading diagram for DFB1412PSM ...
Page 10: ...7 Threading diagram for DFB1412PQ ...
Page 11: ...8 Threading diagram for DFB1412PQSM ...
Page 12: ...9 Threading diagram for DFB1012 ...
Page 13: ...10 Threading diagram for DFB1012PSM ...
Page 14: ...11 Threading diagram for DFB1012PQ ...
Page 17: ...14 5 SEWING MACHINE INSTALLATION 5 1 C u t t i n g t h e m a c h i n e t a b l e 1402 1404 ...
Page 18: ...15 1406 1412 1012 ...
Page 19: ...16 1412 1012PSM ...
Page 20: ...17 1412 1012PQ ...
Page 21: ...18 1412PQSM ...