Changing The Buttonhole Sensor - Pfaff performance 2054 Service Manual

40. Changing the buttonhole sensor

Note:
The buttonhole sensor must be replaced as a complete unit.
Removal:
• Disconnect the machine lead cord.
• Remove the needle and the presser foot.
• Remove the detachable work support.
• Remove the housing covers as described in this manual.
• Remove the connecting plug 15 from button hole sensor (fig. 74).
• Remove Seeger circlip ring 153 (fig. 100).
• Remove lowering lever 154.
• Cut off cable clip 155 with a knife (fig. 101).
• Remove buttonhole sensor 156 complete with spring (fig. 100).
Refitting:
• Install buttonhole sensor 156 complete with spring.
• Place the flat cable into the housing of the machine.
• Insert cable clip 155 from the top and pull it together fig. 101).
• Cut off the protruding end of cable clip 155.
• Fit lowering lever 154 (fig. 100).
• Mount Seeger circlip ring 153 and seal lowering lever.
• Mount connection plug 15 onto the circuit board (fig. 74).
• Refit the housing covers as described in this manual.
• Carry out a function check.
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