Setting the feed dog
Service Instructions 867-M PREMIUM - 02.0 - 02/2017 39
4. Use the Manual bartack button (1) to check if the feed dog is at a
standstill.
5. Adjust if necessary.
6. Tilt the machine head ( p. 16).
Fig. 27: Setting the feed dog feed movement (2)
7. Loosen the threaded pins (2).
8. Press the Manual bartack button (1) and observe the feed dog and
needle in the process.
9. Turn the pusher eccentric (3) so that feed dog and needle no longer
move when the Manual bartack button (1) is pressed.
10. Tighten the threaded pins (2).
11. Finish the service routine.
8.3.2 Setting the feed dog height at top dead center
The feed dog reaches the maximum stroke height at top dead center when
the handwheel is positioned at 190°.
Proper setting
Place the feed dog in the uppermost position by turning the handwheel.
The upper edge of the feed dog protrudes 0.5 mm above the throat
plate.
In machines with short thread cutters (KFA), the upper edge of the
feed dog protrudes 0.8 mm above the throat plate.
To set the feed dog height at top dead center:
1. Execute the service routine Feed Dog > Pos To Needle
( p. 14).
The software is used to define the necessary presettings on the
machine.
2. Check if the sewing drive is at 190°.
3. If needed, use the handwheel to correct the position manually.
4. Tilt the machine head ( p. 16).
(2) - Threaded pins (3) - Pusher eccentric