– 27 –
* Figures on the graduations are indicated in the unit of mm.
1) Adjustment of forward feed stitch length
1. Turn the feed adjust dial
in the direction of the arrow so that the
required figure is adjusted to the engraved marker dot
A
of the
arm.
2. When changing a feed graduation from high to low, turn the feed
adjust dial
while pressing the feed lever
in the direction of the
arrow.
3. When the stopper
is turned in the direction of the arrow
B
, the
feed adjusting dial
is fixed.
4. If the feed adjusting dial
is not fixed, the stopper
is turned in
the direction of the arrow
C
.
2) Reverse feed stitch length check (manual)
1. Turn the feed adjust dial
in the direction of the arrow so that the
required figure is adjusted to the engraved marker dot
A
of the
arm.
2. Reverse feed takes place when the feed lever
is pressed.
The status that the lever is pressed at the maximum corresponds to
the graduation value of the feed adjust dial
.
3) Reverse feed stitch length check (motor-power)
1. When the switch
is pressed, the sewing machine assumes the
condition of reverse feed. When this switch is released, the condition
of forward feed is promptly recovered.
[Adjustment of switch position]
1. Loosen the setscrew
and move the switch
main body vertically
to adjust the height.
2. If the switch
is turned, it can be used in two positions.
3. If the switch
is required to be moved to a lower position, loosen
the setscrew
located behind the sewing machine and lower the
switch base
.
Adjustment Procedure
Results of Improper Adjustment
Summary of Contents for DDL-9000B-DS
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 58: ... 54 11 Thread trimming unit 8 Replacement of the moving knife Standard Adjustment ...
Page 70: ... 66 12 Adjustment of the wiper DDL 9000B WB 2mm 1mm Standard Adjustment ...
Page 112: ...MEMO ...
