Adjusting feed dog and needle bar linkage
Service Instructions M-TYPE DELTA - 00.0 - 12/2019 51
7.6 Adjusting 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 a short thread cutter (KFA), the upper edge of
the feed dog protrudes 0.8 mm above the throat plate.
Fig. 37: Adjusting the feed dog height at top dead center
To adjust the feed dog height at top dead center:
1. Execute the service routine Feed dog > Position 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. 18).
5. Loosen the threaded pins (1).
6. Turn the lever (2) such that the upper edge of the feed dog protrudes
0.5 mm (KFA = 0.8 mm) above the throat plate.
7. Tighten the threaded pins (1).
8. Finish the service routine.
(1) - Threaded pins (2) - Lever
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