Operation Manual

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Pass the thread clockwise round tension unit 4, past thread-tensioning spring 3 and
through guide 2.
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Pass the thread through thread lever 1 and through guides 2, 5 and 6.
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Pass the thread through the needle, pull a few centimetres of thread through and
cutitoff.
Threading the upper thread (2-needle machines)
Sewing machines with 2 needles are threaded similarly to single-needle m achines.
The differences can be seen in the illustration.
The thread-tensioning unit 13 is a double unit and can thus be used on both 1 and
2-needle machines.
Adjusting the upper-thread tensioner
Tension should be as low as possible. The cross-over point should be in the centre of
the material.
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Adjusting the pre-tensioner 8.
The pre-tension should be set lower than the main tension.
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Adjusting main tensioner (10 and 12).
Raising the upper-thread tensioner
The upper-thread tensioner is automatically raised when the thread is severed.
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Press knob 9.
Die upper-thread tensioner remains in the raised position for as long as the knob is
held down.
5.2 Adjusting the thread regulator
The thread regulator 14 regulates the amount of needle thread necessary for stitch
formation.
The s etting depends on the following factors: - material thickness
- yarn characteristics
- stitch length
A properly-adjusted thread regulator ensures an ideal sewing result at a minimum
needle-thread tension.
At the correct setting the needle-thread loop must slide at low tension over the thickest
point of the shuttle.
Caution - danger of injury!
Turn off the main switch. The thread regulator may only be
adjusted with the sewing machine switched off.
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Undo both screws 15.
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Move the thread regulator 14.
The thread regulator is fitted with slots for this purpose.
Moving in the “+” direction increases the quantity of needle thread.
Moving in the “-” direction reduces the quantity of needle thread.
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Tighten screws 15.
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