Trouble Shooting - Pfaff 92 Instruction Book

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1. Machine Sldps Stitches
Cause:
Remedy:
Needle incorrectly inseçted.
Push needle up as far as it will go and be sure that the long groove
faces toward yOu, and flat side of shank away from you.
Wrong needle.
Choose the carrect needle from chart on page 14. (For ordinary
sewing, use System 130 R needles.)
Needle bent.
Insert new needle.
Machine threaded improperly.
Check and correct threading as instructed on pages 16 and 17.
Needle too fine or too thick for the thread.
Use correct needle and thread (see chart on page 14).
2. Needle Thread Breaks
Cause:
Remedy:
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The above mentioned may cause thread
See remedies listed under 1. above.
breakage.
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Thread tension too tight.
Adjust tensions as instructed.
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Poor, knotty or rotten thread used.
Use good quality threads only.
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Hook raceway is jammed with thread or
Clean and oil hook raceway.
needs oiling.
Burrs or sharp edges on needle plate slot.
Polish needle plate slot with fine emery cloth.
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