27 BA_310D-R_3100D-R_A16-3_180117_en
4.10 Seam lock
Attention!
Switch off machine electrically!
Attention!
Danger of finger bruises in the area of pneumatically
operated parts.
4.10.1 General
The sewing cycle begins with the point tack by pressing the pedal forwards.
The sewing speed is independent of the pedal. After completing the point tack,
the machine sews at the speed set by the pedal. When the pedal is released at
the end of the stitch, the seam lock becomes active and the machine lifts off
automatically after finishing the point tack. An intermediate lift thus only
functions using the knee lever.
The point tack function is always switched on by default. The function can be
generally switched off by the software or temporarily by the switch (S2) to the
right of the head.
During seam lock, the lower feed dog and side feed dog are deactivated and an
additional thread tension is active. This thread tension needs to be set
separately. (Fig. 7)
The start and end backtack are active by default. As an alternative, you can use
only the end backtack.
4.11 Sewing drive
The machine is as a rule equipped with the sewing drive selected by you.
Please note the separately enclosed operating instructions for the sewing drive.
There you find notes and the instructions for programming the control including
the motor speed adjustments.
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