Duerkopp Adler 669 Premium Operating Instruction page 31

Operation
Operating Instructions 669 PREMIUM - 00.0 - 11/2016
2. Feed the thread from the rear to the front through the thread
guide (1) on the unwinding bracket.
3. Use a compressed air gun to feed the thread through the hose
guide (2).
Fig. 10: Winding the hook thread (2)
③
④
⑤
(3) - Thread guide
(4) - Thread guide
4. Feed the thread counterclockwise from the thread guide (4)
around the pre-tensioner (5).
5. Insert the thread in a wavelike manner through the 2 holes of
the thread guide (3): from bottom to top through the left hole
and from top to bottom through the right hole.
6. Guide the thread to the bobbin (6).
Fig. 11: Winding the hook thread (3)
⑦
(7) - Bobbin lever
(8) - Bobbin shaft
(5) - Pre-tensioner
(6) - Winder
⑨
⑧
(9) - Cutter
⑥
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