5. ADJUSTMENT
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3475Q
1.Remove the top cover (1).
2.Loosen the two bolts (4) and adjust the position of the driving lever stopper (3) so that distance A between the thread driving lever (2) and the driving lever stopper (3) shown in the illustration is 6 mm.
3.Loosen the nut (5) and use the adjusting screw (6) to adjust the position of the thread driving lever (2) so that the clearance B between the thread driving lever (2) and the driving lever stopper (3) is 0.25 ± 0.05 mm.
4.Turn the machine pulley so that the set screw (8) at the front of the thread trimmer cam (7) in the direction of rotation is facing upward, and then push the plunger (10) of the thread trimmer solenoid (9) in as far as it will go and check that it returns smoothly when the roller (11) is in the slot.
5.Loosen the two screws (12) and adjust the position of the thread trimmer solenoid (9) so that the clearance between the thread driving lever (2) and the driving lever stopper (3) is 0.5 mm when the plunger (10) of the thread trimmer solenoid (9) is pushed in as far as it will go.
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