Dürkopp Adler M-TYPE 667, Operating Instuructions

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7 Sewing test
A sewing test should be carried out when setting-up is complete.
– Plug the mains cable into the socket.
– Thread in the bobbin thread.
– Turn on the main switch.
– Lock the sewing foot in an elevated position.
– Fill the bobbin at medium speed.
– Switch off the main switch.
– Thread in the needle and hook thread (see operating instructions).
– Select the material to be processed.
– Carry out the sewing test, first at low speed and then gradually increasing
it.
– Check to make sure the seams are of the required quality. If not, alter the
thread tensions (see the corresponding section in the operating
instructions). If necessary, the settings specified in the service
instructions should also be checked and corrected.
Caution: Risk of injury!
Switch off the main switch.
The needle and hook threads may only be threaded with the sewing machine
switched off.