Instruction manual

9 Sewing test

After finishing the assembly work a sewing test has to be made.

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Plug in the mains plug.

Caution: Risk of injury !

Switch the main switch off.

Thread in needle thread and looper thread only with the sewing

machine switched off.

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Thread in needle thread and looper thread (see operating

instructions).

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Switch the main switch on.

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Select the material to be processed.

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Make the sewing test first at low speed and then at continuously

increasing speed.

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Check whether the seams correspond to the desired requirements.

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If the requirements are not met, alter the thread tensions (see

operating instructions).

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If necessary, also check the adjustments indicated in the service

instructions and correct them, if required.