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3. Loosen the screws on the lower toothed belt wheel.
4. Turn the lower shaft such that the pointer (2) is above the marking
When you turn the handwheel, the pointer (2) must swing out to
5. Tighten the screws on the lower toothed belt wheel.
6.5 Adjusting the hook in the hook carrier
Fig. 11: Adjusting the hook in the hook carrier
Proper setting
The front of the hook is positioned at an angle of 89° 30' to the edge of
the machine plate.
If there are 2 hooks, the rear one must be aligned and tightened first,
followed by the front one.
To adjust the hook in the hook carrier:
1. Adjust the width using the gage as shown above.
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on the gage (1) both in slot B and slot C ( p. 13).
the left.
Position of needle and hook
Service Instructions 171/173 - 00.0 - 01/2020
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