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3.4.2
C hanging the toothed beltofthe puller
C aution:R isk ofinjury!
S w itch the m ain sw itch off.
C hange the toothed beltonly w ith the sew ing unitsw itched off.
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S crew offsheet1.
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Low erthe feeding unitonto the table top m anually.
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S w itch the sew ing unitoff.
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Loosen screw 4.
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P ush block 2 upw ards and release the tension ofthe toothed belt3.
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R em ove the toothed belt3 to the front.
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P uton the new toothed belt.
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P ullblock 2 dow n fortensioning and tighten screw 4.
Ifthe tension is correct,itm ustbe possible to bend the toothed
belt3 in the m iddle by approx.10 m m w ith sensible counter
pressure.
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M ountsheet1 again.
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