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a Guide to E-2 and E-4 switches
★Items indicated with a circle in the chart below require a stitch number setting.
Items with no symbol require no setting.
★Symbols used in figures below
o . . . . The machine works by one correction stitch if the actuator is pressed when the machine is stopped and the
correction switch is ON. If the actuator is pressed while the machine is operating, the machine enters the
reverse sewing mode. When the machine is at the sewing start position after thread trimming, the machine
does not move even if the actuator is pressed.
• , . . . Thread trimming (Thread trimming is performed when the treadle is pressed to the reverse position.)
.Indicates thread trimming following fixed stitch sewing or end backtack.
(Thread trimming is performed without pressing the treadle to the reverse position.)
E-2
Application
Start backtack switch
End backtack switch
Stitch number setting
Reference figure No.
A
B
Normal lock stitch
OFF
OFF
1
Start backtack
ON
OFF
o
o
2
End backtack
OFF
ON
o
o
3
Start/end backtack
ON
ON
o
o
4
No.1 Normal lock stitch
No.2 Start backtack
No.3 End backtack
No.4 Start/end backtack
■
V
A
,
A
_^
' V
1 /
V
1 /
1/
/
1
\ i
1
A
<
A
/
•
'
i
/
i
/
i
4
< »
V
4
_
*
4
Thread trimming is performed when the treadle is set
Thread trimming is performed after end backtack
to reverse position.
when the treadle is set to the reverse position.
E-4
Application
Start
backtack
switch
End
backtack
switch
Fixed
stitch
switch
Thread
trimming
switch
Continuous
backtack
switch
Stitch number setting
Reference
figure No.
Note
A
|
B
c
D
(D) • (C)
N
Fixed stitch sewing
OFF
Normal
lock stitch
OFF
OFF
OFF
OFF
OFF
1
Start
backtack
ON
OFF
OFF
OFF
OFF
o
o
2
End
backtack
OFF
ON
OFF
OFF
OFF
o
o
3
Start/end
backtack
ON
ON
OFF
OFF
OFF
o
o
o
o
4
Fixed stitch sewing
ON
(thread trimming
activated by setting
treadle to reverse)
Fixed stitch
sewing
OFF
OFF
ON
OFF
OFF
o
o
5
Start
backtack
ON
OFF
ON
OFF
OFF
o
o
o
o
6
End
backtack
OFF
ON
ON
OFF
OFF
o
o
o
o
7
End back¬
tack B/A
Start/end
backtack
ON
ON
ON
OFF
OFF
o
o
o
o
8
End back¬
tack B/A
Fixed stitch sewing
with thread trim¬
ming ON
(thread trimming
performed with
treadle depressed
forward)
Fixed stitch
sewing
OFF
OFF
ON
ON
OFF
o
o
9
Start
backtack
ON
OFF
ON
ON
OFF
o
o
o
o
10
End
backtack
OFF
ON
ON
ON
OFF
o
o
o
o
11
End back¬
tack B/A
Start/end
backtack
ON
ON
ON
ON
OFF
o
o
o
o
12
End back¬
tack B/A
Continuous backtack
(Automatic thread trimming after
programmed cycle completed)
OFF
OFF
OFF
OFF
ON
o
o
o
o
13
Normal lock stitch sewing is performed after the fixed stitch sewing sequence is completed until thread trimming is
completed. (No. 5 through 8 in the above table.)
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