20 BA_VEB100-1-2-2W-4-5_A3-1_180615_en
4.4
Depending on the quality, configuration and thickness of the thread as well as
the sewing material, the thread tension is set using the knurled nut
Thread tension
((2) Fig. 7)
until the desired seam shape is created (Fig. 11).
4.5
The thread take-up lever
Thread take-up lever
(8) shown in Fig. 7 prevents the thread from twisting
and the loop from collapsing. It also ensures that the loop is properly caught by
the looper and needle.
The seam shape becomes homogeneous and the edge of the hem free of
tension.
The behaviour of the thread take-up lever is affected by the thread movement
(choice of eye) and thread tension.
4.6
The stitch depth controller makes it possible to adjust the distance between
the upper edge of the plunger and the needle radius so that the plunger is lifted
or lowered, depending on the thickness of the material to be sewed. This
determines how deep the needle can penetrate into the layer of material
between the plunger and cloth retainer. This value is referred to as the stitch
depth.
Stitch depth control
4.6.1
The stitch depth is set using the control button
Adjusting the stitch depth
((5) Fig. 7) and is located on the
front side of the machine.
Turn the control button to the left (+) to create a deeper stitch.
Turn the control button to the right (-) to create less stitch depth.
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