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6.16.2 Using the key
Key
Function
1
Manual sewing backward
The machine sews backward stitches as long as the key is being pushed.
2
Needle positioning to the upper or lower position
By parameter F-242 (DA321) the following key functions can be defined:
1 = needle up/down
2 = needle up
3 = one stitch
(factory setting is 1)
3
Calling out/cancellation of the start or end bartack
If the start and end bartack are switched on, the following bartack is switched off by
pressing the pushbutton.
If the start and end bartack are switched off, the following bartack is switched on by
pressing the pushbutton.
4
Switching the stitch length
The function of the key can be defined via parameter F-250 (DA321).
1 = by pressing the key, the stitch length can be switched between two values
set in advance
4 = by pressing the key, the stitch length can be changed in a smaller value, a stitch will be
sewn and the machine will be switched over to its original (greater) stitch length.
5
Switching on/off the supplementary thread tension
(see chapter 6.5) - only CLASSIC machines with pneumatic control.
If the key is lit up:
Supplementary thread tension is switched on (tension discs closed).
If the key is not lit up:
Supplementary thread tension is switched off (tension discs closed).
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8
10 9
11
1
2
3
4
5
GB
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