TEXI Tronic 7 NF operation manual
24. Thread Cutting Regulation
Warning: Turn OFF the power before starting the work as to prevent accident caused by abrupt start of the sewing
machine.
Thread cutter cam position regulation
Turn the machine’s pulley. The needle bar will rise to 5 mm from the lower dead point, and the thread cutting cam will be
pressed in and will push the roller ball, causing contact with the groove of the thread cutting cam (1). Then use fixing screw
(2) for temporary fastening. Put on the thread cutting cam (4) while loosening screw (2) in order to set the cam (1). The
distance between the cam and the thread cutting drive shaft should be equal to 0.5 mm. Fasten the fixing screw (2).
Counter knife and moving knife position regulation
When the thread cutting drive shaft head (3) cross the cam, a 0.2 – 0.5 mm meshing between the front plane of the counter
knife (8) and the edge of the moving knife (7) occurs. If cutting does not take place, shift the knife lever (6) so that the thread
cutting drive shaft crosses the cam (1) so that the front plane of the counter knife (8) and the edge of the moving knife (7)
meshes, and then fasten screw (5).
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