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Adjusting the bobbin case lifter
9.2 Adjusting the timing for lifting
Fig. 49: Adjusting the timing for lifting (1)
(1) - Cover
(2) - Slot
Proper setting
The bobbin case lifter starts to open exactly at the point when the hook tip
is located below the bobbin case lifter after the loop is taken up.
In 1-needle machines, this happens when the handwheel position is
approx. 125° ± 5°.
In 2-needle machines, this happens when the handwheel position is
approx. 125° ± 5° for the right-hand hook, and when the handwheel
position is approx. 305° ± 5° for the left-hand hook.
For 125° or 305°, the threaded pin (4) is exactly in the center of the slot
(insert allen key in the threaded pin for orientation).
To adjust the timing for lifting:
1. Open the hook cover (3) ( p. 28).
Service Instructions D868 M-TYPE DELTA - 00.0 - 06/2020
①
③
②
(3) - Hook cover
63
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