Sewing Test - Duerkopp Adler 910 Installation Instructions Manual

10.3 Sewing test

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After finishing the assembly work a sewing test should be made.
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Plug the mains plug in.
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Wind up the bobbin thread (see operating instructions chapter 7.5)
Caution: Risk of injury!
Switch the main switch off.
Thread in the needle thread and the bobbin thread only with the sewing
machine switched off.
–
Thread in the needle thread (see operating instructions
chapter 7.1).
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Insert the bobbin thread winder (see operating instructions
chapter 7.6).
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Switch the main switch on.
The control is initialised.
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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 seam pattern corresponds to the desired
requirements.
If the requirements are not met, alter the thread tensions (see
operating instructions chapters 7.2 and 7.7).
If necessary, also check the adjustments indicated in the service
instructions and correct them, if required.
–
Check the oil level at both inspection glasses during the operation
of the sewing unit.