Pfaff 285 Owner's Manual - Page 37
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Trouble Shooting When operated properly, your sewing machine will hardly develop any trouble. Please remember to restore the normal setting after you have completed your sewing job (buttonhole sewing or darning, for instance) by switching the machine back to straight stitching, flicking the needle posilion lever to its central position, and setting the stitch length control on "2'. If trouble should occur, check the following: * The needle must not be damaged and must be inserted correctly (p. 17). • Select the correct needle and thread from the Needle and Thread Chart (on inside front cover). C Check whether the needle has been threaded correctly (p. 11). • Use only high-grade machine thread or sewing silk. • Check to see that the bobbin case has been inserted correctly (p. 9). • Both tensions must be balanced correctly (p. 16). • Don't force the feeding motion, merely guide the material lightly. • Clean and oil the machine as instructed (pp. 36 & 37). • Make sure there are no pieces of thread wedged between the tension discs. To remove them, pull a narrow fabric strip between the tension discs. • The Pfaff rotary hook will not normally jam, even If the machine should be handled Improperly. If thread should happen to jam In the hook raceway, It Is sufficient to put a drop of oIl Into the raceway, jerk the balance wheel back and then rock It back and forth, without applying force. 38