SINGER W1405 User Manual

Page 38

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TROUBLE SHOOTING: CAUSES AND REMEDIES

IF THREAD FORMS LOOPS

CAUSE

Thread tension not properly regulated

Needle thread not properly threaded and/or bobbin thread
not properly wound

Thread size not suited to fabric
Thread check spring not working properly

REMEDY

Read instructions for regulating rfeedle-and bobbin thread tension
Thread machine properly and/or wind bobbin thread correctly

See "Size of needle and thread"
Have spring replaced

SHRINKING OR PUCK!ERING OF THE SEAM

Tension too tight
Sewing foot pressure too strong

Read instructions for regulating r|eedle-and bobbin thread tensions
Read instructions for regulating sjewing foot pressure

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 A NOISE

Machine needs oiling

Dust and thread in shuttle

Wrong oil used, has now clogged machine

Drive belt tension too tight

Read instructions on how to oil I
Read instructions on how to cleajn shuttle race
Clean machine carefully and re-oil with top quality oil
Loosen tension of drive belt