Changing light bulb – SINGER W1577 User Manual
Page 37
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■' PROBLEM
PROBABLE CAUSE
CORRECTION
Breaking needle
Needle not correctly inserted
P. 7
Needle bant
P. 7
Needle
clamp screw too loose
P. 7
Upper thread tension too tight
P.18
Needle too fine for the material
R15
Dials have been changed while the needle
was down in the material
PI 6, P.19
Zigzag width set more than 2.5 while twin
needle was attached
If
trouble is still apparent in the machine, please consult your nearest dealer.
Do not try to correct fault by yourself.
For adjusting the tension of any belts, please do not try to adjust it by yourself but
contact your nearest dealer.
Changing Light Bulb
Unplug the machine.
Open face cover as shown.
Remove bulb by unscrewing it
counterclockwise.
Install a new bulb by screwing it
clockwise.
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