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Repair Instructions
23. Dismantling and assembling the needle thread tension
Removal:
● Remove the needle thread tension.
● Press the two plastic noses 70 together and remove tension dial 71 (fig. 66).
● Remove spring disc 72.
● Turn milled nut 73 out of guide 74.
● Remove guide 74.
● Remove milled nut 73 and pressure-spring 75.
● Pull out or knock out cemented stud 76 complete with pressure piece 77 and the three tension
discs 78, 79 and 80.
Fitting:
● Insert tension stud 76 with the three tension discs 78, 79 and 90 and the pressure piece 77.
● Cement the tension stud into the mounting plate with Onmivit-Rapid.
● Push pressure-spring 75 and milled nut 73 onto tension stud.
● Insert guide 74 with its right side and fully screw in milled nut 73.
● Push on tension dial 71 making sure that the guide nose is in contact with the outer surface of the
curve.
● Install the needle thread tension.
● Set the needle thread tension according to section 18.
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