Positioning the toothed belt wheels
24 Service Instructions 667 - 00.0 - 04/2016
Fig. 13: Setting the upper toothed belt wheel
To set the upper toothed belt wheel:
1. Using the screwdriver, push the toothed belt (4) sufficiently far to the
side so that the 2 threaded pins (2) can be reached.
2. Loosen the threaded pins (2).
3. Turn the upper toothed belt wheel (1) such that the threaded pins (2)
are seated flush on the flat (5) of the arm shaft.
4. Move the upper toothed belt wheel (1) to the side such that the distance
to the winder wheel (3) is 0.8 mm.
5. Tighten the threaded pins (2).
6. Use the screwdriver to push the toothed belt (4) back again.
(1) - Upper toothed belt wheel
(2) - Threaded pins
(3) - Winder wheel (position in machines
with normal lengths)
(4) - Toothed belt
(5) - Surface of arm shaft
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