Setting the bobbin case lifter
54 Service Instructions 867-M PREMIUM - 03.0 - 05/2017
11.1 Setting the lifting gap
Fig. 40: Setting the lifting gap (1)
Always check the width of the lifting gap after making changes to the nee-
dle thread size. The correct width of the lifting gap depends on the thick-
ness of the needle thread.
Proper setting
The needle thread slides through unobstructed between the nose of the
bobbin case (1) and the slot in the throat plate (2).
To set the lifting gap:
1. Tilt the machine head ( p. 16).
2. Open the throat plate slide ( p. 20)
Fig. 41: Setting the lifting gap (2)
3. Loosen the screw (5).
4. Push the cover (4) downwards.
5. Loosen the threaded pin (3).
6. Set the bobbin case lifter (6) so that the gap between the nose of the
bobbin case (1) and the slot in the throat plate (2) is just large enough
to allow the needle thread to slip through without a problem.
(1) - Nose of the bobbin case (2) - Slot in the throat plate
(3) - Threaded pin
(4) - Cover
(5) - Screw
(6) - Bobbin case lifter