Operation Manual

3.4Pullerand ejector

3.4.1 Changing the toothed beltofthe step m otor

Caution:Risk ofinjury!

Switch the m ainswitch off.

C hange the toothed beltonlywiththe sew ing unitsw itched off.

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Low erthe feeding unitontothe tabletop m anually.

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Switch the sew ing unitoff.

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Screw offcoverplate1.

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Screw outthe screw 2.

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Loosen screw 4 and sw ivelcylinder3 tothe rear.

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Loosen screw 6 and release the tension ofthe toothed belt5.

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Rem ove the toothed beltfirs t fro m the drive roll7 and then fro m the

feed rollerofthe puller.

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Fitthe new toothed beltin reverse order.

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Tension toothed belt5 and tighten screw 6.

Ifthe tension is c o rre c t,itm ustbe possibleto bend the toothed

belt5 inthe m iddle by approx.5 m m w ith sensible counter

pressure.

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Swivelthe cylinder3 tothe frontagain and screw iton the puller

with screw 2.

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Tighten screw 4.

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Screw coverplate 1 on again.

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