Troublé shooting: causes and remedies, Thread forms loops, Irregular stitches – SINGER W1911 Quilter's Friend User Manual
Page 37: Machine does not run freely and makes noise
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TROUBLÉ SHOOTING: CAUSES AND REMEDIES
THREAD FORMS LOOPS
CAUSE
REMEDY
Thread tension not properly regulated
Upper thread not properly threaded and/or bobbin thread
properly wound
Thread size not suited to fabric
Thread check spring not working properly
Read instructions for regulating needle-and bobbin thread tension
Thread machine properly and/or wind bobbin thread correctly
See "Size of needle and thread”
Have spring replaced
SHRINKING OR PUCKERING OF THE SEAM
Tension too tight
Fabric too lightweight to support stitch
Read instructions for regulating needle-and bobbin thread tensions
Place stabilizer under fabric
IRREGULAR STITCHES
Needle and bobbin threads of poor quality
Bobbin thread unevenly wound
Use top quality threads
Re-wind bobbin
MACHINE DOES NOT RUN FREELY AND MAKES NOISE
Machine needs oiling
Dust and thread in shuttle
Drive belt tension too tight
Please contact local dealer
Read instructions on how to clean shuttle race
Contact local dealer
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