Changing The Needle Threader - Pfaff expression 2014 Service Manual

40. Changing the needle threader

Note:
The needle threader is only exchanged complete with the threader bar frame.
Removal:
Remove the machine's mains lead.
Remove the needle and the presser foot.
Presser threader key 63 down completely and keep it pressed (fig. 114).
Using a small screwdriver, raise bracket 139 of threader bar frame 140 slightly.
Remove the complete threader bar frame downward from threader bar 141.
Fitting:
Push the new threader bar frame together with the needle threader on to the threader bar, until bracket
139 clicks back into place.
Cross-check:
Insert a new needle Nm 70.
Move the needle threader up and down by pressing threader key 63.
Carry out a visual check of the position of the needle-threader prong in the needle eye.
If necessary, readjust the position according to section 16 of the service manual.
Carry out an electrical safety test in accordance with VDE 0701 using testing appliance Metra-
watt 5013.
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