25
ⓔ
Example
When corner sewing is carried out after entering the following data, the resulting needlework will be as figure 39.
Here, the corner sewing speed is 1500 spm, and the left and right solenoid holding time is 45 seconds.
ⓕ
With the semi-automatic corner sewing data entered, if the left/right button is pressed before start operating the
machine and then step on the pedal, semi-automatic sewing gets started immediately according to the entered data.
C. Reference table for adjusting the number of stitches when sewing corners (when the needle width is 1/4
”
)
In order to do accurate corner sewing, decide on the stitch length taking the following reference table into account. Tat is,
once the sewing angle and stitch length is known, it becomes clear how many stitch lengths the outside needle needs to be
set apart from the inside.
Ex) If you look at figure 40, the sewing angle is 40
°
and the stitch length is 2.9 mm. Then the outside needle need to be
set apart by 6 stitch-length.
14) Adjustment of safety device
When there is over load in the machine during operation, the safety device pulley
①
and the lower shaft
②
get separated,
thereby not handing over the driving power of the upper shaft to the lower shaft
②
. Hence major parts get to be safe from
damage. In this case, the power switch needs to be turned off, the cause of overload need to be removed, and lay down the
machine on its back. Pressing the latch button
③
, turn the pulley. Safety device pulley
①
and the lower shaft
②
will come
back to its original position.
※
The load in which the safety device gets activated can be adjusted by turning the adjusting screw
④
to the right for large
load, and left for small load. (See figure 41)
[Figure 39]
Right needle up-
stop position
Left needle up-stop
position order
Right needle
up-stop position order
First round number of
stitches (5 stitches)
[Figure 40]
[Figure 41]
2
3
4
5
6
7
8
30
。
4.8
4.0
3.7
3.0
40
。
4.4
3.5
2.9
2.5
2.2
50
。
4.6
3.4
2.7
2.3
2.0
1.7
60
。
3.5
2.8
2.2
1.9
1.6
70
。
4.6
3.0
2.3
1.8
1.5
80
。
3.8
2.5
1.9
1.5
1.3
90
。
3.2
2.1
1.6
1.3
100
。
2.7
1.8
1.3
110
。
2.2
1.5
120
。
1.8
1.2
130
。
1.5
140
。
1.1
Whether or not semi-automatic corner work will
be carried out
Speed of semi-automatic corner work
First round no. of stitches for the right needle
when the left needle is in up-stop position
Second round no. of stitches for the right needle
when the left needle is in up-stop position
First round no. of stitches for the left needle
when the right needle is in up-stop position
Second round no. of stitches for the left needle
when the right needle is in up-stop position
Left and right needle solenoid waiting time
Code No.
30
31
32
33
34
35
36
Initial configuration
What it means
1
1500
2
1
5
5
450
Stitch-
lengths:6
Working
angle 40
。
[Left turn sewing]
Left needle up-
stop position
First round number of
stitches (2 stitches)
Left needle up-stop position
Second round number
of stitches (1 stitch)
Right needle up-
stop position
Second round
number of stitches
(5 stitches)
no of stitch-
lengths
sewing
angle
