Brother PR-650 Operation Manual page 257

— — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Symptom
The upper thread
breaks.
Probable Cause
The needle is not correctly
installed.
The needle set screw is loose.
The needle is bent or blunt.
The area around the hole in the
needle plate is damaged.
1 Scratches/Burrs
The needle is touching the
needle plate.
1 Needle
2 Needle plate hole
3 Needle touching hole
The presser foot is set too high
and not correctly positioned.
The needle hits/touches the
presser foot.
The area around the embroidery
foot hole is damaged.
1 Scratches/Burrs
Using a weak thread like a
metallic thread.
Remedy
Correctly install the needle.
Use the Allen screw driver to
tighten the needle set screw.
Replace the needle with a new
one.
Replace the needle plate or
consult your nearest authorized
dealer.
Consult your nearest
authorized dealer.
Consult your nearest
authorized dealer.
Replace the presser foot.
Consult your nearest
authorized dealer.
Slow down the machine
sewing speed.
Reference Page
p.86
p.86
p.33, 86
p.127
Troubleshooting 255
7