Dürkopp Adler D669 Operating Instructions Manual page 29

Operation
Operating Instructions D669 M-TYPE DELTA - 00.0 - 10/2020
For machines with thread clamp (optional)
12. Insert the thread through the right hole of the guide above
the thread clamp.
13. Insert the thread through the right hole of the guide below
the thread clamp.
Fig. 8: Thread clamp
14. Insert the thread into the thread clamp from the right so that
the thread is held in place inside the hook of the clamp.
The thread is supposed to run through the clamp almost without
touching it and in such a way that it only makes contact with
the guides above and below the thread clamp.
15. Insert the thread through the thread guide (8) on the needle
bar block.
16. Insert the thread through the needle eye (towards the groove)
in such a way that the loose thread end faces the hook.
17. Pull the thread through the needle eye until the loose thread
end has a length of approx. 4 cm with the thread lever (12) at
the highest position.
Important
Check the thread length.
If the loose thread end is too long, the thread may be caught by
the hook and cause a disturbance. If the loose thread end is too
short, the machine cannot start sewing.
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