Brother 882-T51 Operation Manual page 176

Symptom
The carriage moved while removing
embroidery frame.
The embroidery
pattern is misaligned.
The embroidery frame is too large for
the size of the embroidery.
The embroidery frame is not correctly
attached to the carriage.
The pattern was not digitized correctly.
Stabilizer is incorrectly attached, for
example, it is smaller than the
embroidery frame.
The upper thread tension is low.
There are loops in the
upper thread.
The thread tension does not correspond
to the amount that the thread tension
knob or the upper thread guide
pretension knob was tightened.
Thread is not correctly threaded around
upper thread tension discs.
The thread quality is poor.
The lower thread tension is incorrect.
Lint may be wound in the hook.
The upper thread is not threaded
correctly.
The machine is noisy.
The hook is damaged.
Not enough oil was applied.
174
Probable Cause Remedy
The pattern may become misaligned if
the presser foot was hit or the carriage
was moved while replacing bobbin
thread, changing needle, or working
near embroidery frame.
Be careful when removing and
reattaching the embroidery frame while
replacing bobbin thread, changing
needle, or working near embroidery
frame.
If the carriage is moved, turn the
machine off, then on again. The correct
frame position at the time that the
machine was stopped is stored in the
machine's memory, and the
embroidery frame is returned to the
correct position.
Use an embroidery frame that is close
to the size of the embroidery.
Correctly attach the embroidery frame
to the carriage. Make sure that the pins
on the left and right arms of the
embroidery frame holder securely fit
into the holes in the handles on the
embroidery frame.
The pattern may need more pull
compensation or underlay to
accommodate stretchy or high-napped
fabrics.
Attach the stabilizer correctly.
After passing the upper thread through
the hole in the presser foot, pull the
thread by hand to check the thread
tension.
If the thread tension cannot be
adjusted, dust may have collected in
the upper or middle thread guide
plates, causing the thread tension guide
plates not to measure the thread weight
properly. Clean the thread tension
guide plates.
Clean upper thread tension disc.
Rethread and make sure tension disc
rotates when pulling on thread.
Try sewing with different thread. If the
problem no longer occurs after the
thread is changed, the thread quality is
the problem. Replace the thread with
one of good quality.
Adjust the tension of the bobbin thread.
Clean the hook.
Check the thread path, and then thread
the upper thread again.
Replace the hook.
Consult your nearest authorized
Brother dealer.
Oil recommended parts.
Reference Page
p. 74
p. 44
p. 76
p. 92
p. 167
p. 167
p. 92
p. 164
p. 48
p. 168