Pfaff select line 610A Owner's Manual page 41

Machine does not feed or feeds irregularly
Sew ing lint has collected betw een the feed
dog teeth row s.
Feed dog is low ered, slide A (see page 23)
at right.
Machine is running with dif culty
There are thread remnants in the hook
race.
Important note!
Before you replace sew ing feet or needles, you must sw itch off the main sw itch.
Do not start the threaded machine w ithout fabric in it.
If you leave the machine, even for a short time, do not forget to sw itch off the main
sw itch. This is important if children are nearby.
Remove needle plate, remove lint w ith
brush.
Push slide B (see page 23) to left.
Remove the threads.
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