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Aligning the needle bar linkage
2. Remove the arm cover ( p. 18).
3. Remove the head cover ( p. 19).
4. Remove the valve cover ( p. 20).
5. Loosen the threaded pins (1) on the two adjusting rings of the shaft
6. Loosen the screw (2).
Fig. 30: Aligning the needle bar linkage sideways (2)
(3) - Needle bar linkage
(4) - Throat plate
(5) - Threaded pins
7. Loosen both threaded pins (5) on the arm shaft crank (7). Make sure
8. Move the needle bar linkage (3) sideways such that the needle pierces
9. Push the two adjusting rings inwards as far as they will go and tighten
10. Tighten the threaded pins (1) on the two adjusting rings.
11. Tighten the screw (2).
12. Align the thread lever (6) exactly in the middle of the slot.
13. Tighten both threaded pins (5) on the arm shaft crank (7).
14. Finish the service routine.
Order
Then, check the following settings:
Service Instructions 869-M PREMIUM - 00.0 - 07/2018
for the needle bar linkage.
that the threaded pins stay on the surface.
exactly in the center of the needle hole (4) for the feed dog.
them, so that there is no axial play.
• Distance between hook and needle ( p. 46)
• Loop stroke position ( p. 48)
⑦
③
⑤
④
(6) - Thread lever
(7) - Arm shaft crank
⑥
43
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