Setting the needle bar
28 Service Instructions 878-M PREMIUM - 03.0 - 10/2019
Fig. 17: Aligning the needle bar linkage sideways (2)
4. Loosen both threaded pins (3) on the arm shaft crank (2). Make sure
that the threaded pins stay on the surface.
5. Move the needle bar linkage sideways such that the needle pierces
the exact center of the needle hole.
6. Drive the threaded pins (1).
7. Align the thread lever (4) exactly in the middle of the arm slot.
8. Drive both threaded pins (3) on the arm shaft crank (2).
Order
Then, check the following settings:
• Distance between the hook and the needle ( p. 38)
• Loop stroke position ( p. 39)
(2) - Arm shaft crank
(3) - Threaded pins
(4) - Thread lever
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