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3. Turn the upper toothed belt wheel (1) such that the setscrews (2) are
Short arm
4. Additional setting step for short arm machines:
machines
5. Tighten the setscrews (2).
6. Use the screwdriver to push the toothed belt (4) back again.
7.2 Lower toothed belt wheel
Correct setting
The two setscrews for the lower toothed belt wheel are seated completely
on the surface of the lower shaft.
The toothed belt runs correctly without running against the retaining ring
or slipping off.
Cover
• Tilt the upper section backwards
22
seated completely on the surface (5) of the arm shaft.
Move the upper toothed belt wheel (1) to the side such that the distance
to the winder wheel (3) is 0.8 mm.
WARNING
Risk of crushing
Switch the sewing machine off before you check and set the
lower toothed belt wheel.
(
Section 4.4.1 Access to the machine bottom section, page 10)
Positioning the toothed belt wheels
Service manual H867 Version 00.0 - 08/2013
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