Pfaff 3822-1/22 - Hook Knife Sensor Fault Finding and Remedy

64 PFAFF
50.12.3 Fault finding and remedy
Sewing and cutting procedure is not started:
.1 Position hook knife 20 (fig. 24) in starting position by pressing:
Either key
or key
or knee button 37 (fig. 26).
.2 Find the cause for the disturbance
Possible causes:
- dirt between stop bracket 32 and pin 31
- lint is preventing hook knife 20 from reaching the cutting position
- dirt between slide 38 (fig. 24) and guide 39 (slide is binding)
.3 Remove disturbance.