– 15 –
1. The front and rear positions of the inner hook presser
can be
adjusted by means of the setscrew
.
[Standard adjusting value]
Fasten the needle entry section by means of the setscrew
so
that it is located closer to the shoulder section toward the front side
from the center of the embossed part in the inner hook presser
.
o If the embossed part of the inner
hook presser
has any flaw, this
can be a cause of thread break-
age or uneven sewing.
In such a case, the damaged part
shall be replaced with a new one.
o If the inner hook presser
is
positioned inadequately, an extra
tension is exerted when the thread
comes out of the embossed part.
This can be a cause of shrinkage
errors.
Adjustment Procedure
Results of Improper Adjustment
Summary of Contents for DDL-9000A
Page 14: ... 10 4 Feed locus and phase 1 Timing standard 2 Timing fast 3 Timing slow Standard Adjustment ...
Page 32: ... 28 8 Adjustment of the amount of feeding 4 Optional switch Standard Adjustment ...
Page 60: ... 56 11 Thread trimming unit 7 Replacement of the moving knife Standard Adjustment ...
Page 66: ... 62 11 Thread trimming unit 10 Adjustment of the drive arm stopper Standard Adjustment ...
Page 70: ... 66 12 Adjustment of the wiper DDL 9000A WB OB 2mm 1mm Standard Adjustment ...
Page 72: ... 68 13 Adjustment of feed lever pressure B A Feed lever Standard Adjustment ...
Page 112: ...MEMO ...