Instruction manual

10. Lubrication
See Operating instructions, section 8.2: “Lubrication”
11. Sewing test
A sewing test must be carried out when setting-up is complete.
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Insert the mains plug.
Caution: danger of injury
Turn off the main switch.
The looper threads may only be threaded for winding on
with the sewing machine switched off
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Thread the looper threads for winding on (see operating instructions).
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Turn on the main switch.
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Fill the bobbins at low speed.
Caution: danger of injury
Turn off the main switch.
The needle and looper threads may only be threaded with
the sewing machine switched off.
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Thread the needle and looper threads (see Operating instructions).
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Select the material to be processed.
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Carry out the sewing test, first at low speed and then gradually increasing it.
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Check that the seams are of the requisite quality.
If not, alter the thread tensions (see Operating instructions).
If necessary the settings given in the servicing instructions should
also be checked and corrected.
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