Operation
Operating Instructions 878-M PREMIUM - 02.0 - 02/201832
Fig. 13: Winding on the hook thread - part 1
3. Insert the thread in a wavelike manner through the 3 holes of 
the thread guide (1): from top to bottom through the left hole, 
from bottom to top through the hole in the middle and finally 
from top to bottom through the right hole.
4. Guide the thread counterclockwise around the pre-
tensioner (2).
5. Insert the thread in a wavelike manner through the 2 holes of 
the hook thread guide (4): from bottom to top through the left 
hole and from top to bottom through the right hole.
6. Guide the thread to the winder (3).
Fig. 14: Winding on the hook thread - part 2
7. Clamp the thread behind the cutter (7) and tear off the loose 
end behind it.
8. Fit the bobbin on the bobbin shaft (6).
9. Turn the bobbin clockwise until it clicks.
10. Pull the bobbin lever (5) up.
(1) - Thread guide
(2) - Pre-tensioner
(3) - Winder
(4) - Hook thread guide
①
②
③
④
(5) - Bobbin lever
(6) - Bobbin shaft
(7) - Cutter
⑤
⑥
⑦