57 BA_KA-ED_A22_190313_en.doc
Too few stitches for peaked lapels
Possible cause:
- Distance between light barriers is too great.
- The stitch distance is too great.
Solutions:
- Recommended to set light barrier S10 closer to the needle and adapt the
stitch end with parameter 754 (Stc3). I necessary set light barrier S8-1
closer to the needle as well and adapt the stitch beginning with parameter
755 (t3).
- Decrease the stitch distance see point “4.10 Setting the seam distance (Fig.
13)“.
Blisters on the outer cloth
Possible reasons:
- The stitch distance is too great.
- The needle does not punctuate the outer cloth.
Solutions:
- Reduce the stitch distance setting see point “4.10 Setting the seam
distance (Fig. 13)“.
- Set the plunger higher (the stitch depth is greater thereby).
Problems with the thread trimmer
Possible reasons:
- The blade is not sharp enough.
- The cutting position is wrong.
- The stitch end is too close to the material edge.
- The stitch depth is too little (plunger is too deep – material is not
punctuated).
- The thread braking is set too weak.
Solutions:
- Sharpen or replace the blade.
- Set the cutting position properly.
- see point “3.4.3 Positions of the machine of the operating instructions”.
- see also point “7.4.3 Setting positions 1 and 2” of the sewing drive's
operating instructions.
- Set the S10 light barrier further away from the needle
- nd/or reduce parameter 754.
- Set the plunger higher (stitch depth is greater). see Fig. 1 – Plunger height
adjustment, “4.8 Setting the stitch depth (Fig. 10 + Fig. 12a)“ and “4.9
Digital stitch depth display (Fig. 10)“.
- Correct the thread brake see point “4.3 Thread monitor“. The thread brake
becomes firmer when the knurled nut is turned to the right. (Fig. 8a)
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