Operation
Operating Instructions 878-M PREMIUM - 02.0 - 02/201828
Fig. 9: Threading procedure for needle thread - part 1
4. Feed the thread clockwise from the thread guide (8) around
the preliminary tensioner (7).
5. Feed the thread counterclockwise around tensioner 1 (6).
6. Feed the thread clockwise around tensioner 2 (5).
7. Guide the thread under the diverter pin (4) to the thread
tensioning spring.
8. Lift the tightening lever (1) with the thread.
9. Pull the thread under the spring tip (2).
(1) - Tightening lever
(2) - Spring tip
(3) - Thread tensioning spring
(4) - Diverter pin
(5) - Tensioner 2
(6) - Tensioner 1
(7) - Preliminary tensioner
(8) - Thread guide
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