Threading The Needle Thread - Duerkopp Adler 271 Operating Instructions Manual

3.4 Threading the Needle Thread

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To set the two tension values proceed as follows:
– Turn the regulating screw 6 so far back that the
tension of the leaf spring 7 is completely released.
– Set the brake spring 5 accordingly by turning the
screw 4.
– Insert the bobbin into the upper part of the bobbin
case and thread the looper thread as per the
illustration.
– Insert the bobbin case with bobbin into the hook.
– With a so-called air stitch pull the looper thread to
the top of the stitch hole with the aid of the needle
thread.
– Pull off the looper thread at an angle of 45°. About
half of the tension value should be felt.
Then tighten the regulating screw 6 to the
recommended tension.
- Risk of Injury -
Turn the main switch off!
The thread path of the needle thread is shown in the
following illustrations.
For a, as far as possible, tension-free unwinding of the
threads from the thread stand thread through only one
thread hole of the unwinding arm.
The other thread holes are closed with the plugs found in
the accessories package.
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