Brother PR-600 Manual page 212

Sapphire.book Page 194 Friday, August 1, 2003 9:12 AM
Appendix ———————————————————————————————————————————————————————————
Symptom
The automatic needle-threading
mechanism is broken.
Adhesive is attached to the
needle.
The fabric is not taut.
The thread quality is poor.
The upper thread
breaks.
The embroidery data contains
stitches with a pitch of zero.
The embroidery data contains
many stitches with an extremely
small pitch.
The thread density of the
embroidery data is too fine.
Three or more overlapping
stitches are being sewn.
The bobbin thread is not
correctly threaded.
The bobbin is scratched or does
not rotate smoothly.
The bobbin
The bobbin case is damaged.
thread breaks.
The thread is tangled.
A bobbin designed specifically
for this machine is not used.
The upper thread is not threaded
correctly.
The needle is bent or blunt.
The needle is not installed
correctly.
Stitches are
Dust has accumulated under the
skipped.
needle plate or in the hook.
The needle and the hook are not
correctly passing each other.
The thread twist is either too
tight or too loose.
The thread is tangled.
The fabric is not well framed in
The embroidery
the embroidery frame (for
pattern is
example, the fabric is not taut).
misaligned.
The embroidery frame is too
large for the size of the
embroidery.
194
Probable Cause
Consult your nearest authorized
dealer.
Replace the needle.
Firmly set the fabric in the
embroidery frame so that it is
taut.
The thread quality is too weak
due to age of thread. Replace
thread.
Delete all stitches with a zero
pitch.
Delete all stitches with a small
pitch.
Using a data design system,
correct the thread density and
overstitching settings in the
embroidery data.
Correctly thread the bobbin
thread.
Replace the bobbin.
Replace the bobbin case.
Remove the thread jammed and
clean the hook.
Use the correct bobbin.
Thread the upper thread
correctly.
Replace the needle with a new
one.
Correctly install the needle.
Clean the hook and the needle
plate.
Consult your nearest authorized
dealer.
Improper twisting results in
irregular loop formation. Try
using a new spool.
Use tweezers to remove any
tangled thread from the hook.
If the fabric is not taut, the
pattern may become misaligned
or the stitching may shrink. Be
sure to correctly frame the fabric
in the embroidery frame.
Use an embroidery frame that
matches the size of the
embroidery.
Remedy Reference Page
p.28, 65
p.150
p.150
p.183
p.15, 61
p.183, 184
p.28, 65
p.61
p.98
p.19
p.18
p.18
p.15
p.35
p.61
p.63