Repair Instructions; Dismantling And Assembling The Needle Thread Tension - Pfaff expression 2014 Service Manual

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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