Brother 884-T13 Operation Manual page 298

Symptom
The carriage moved while removing
embroidery frame.
The embroidery
pattern is misaligned.
The design was not digitized correctly.
The size of the
installed embroidery The thumbscrews on the embroidery
frame is not correctly frame holder are loose.
detected.
The starting position
for the embroidery The thumbscrews on the embroidery
frame is horizontally frame holder are loose.
misaligned.
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 was tightened.
Thread is not correctly threaded around
upper thread tension discs.
The thread quality is poor.
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.
296
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.
The design may need more pull
compensation or underlay to
accommodate stretchy or high-napped
fabrics.
Use the included disc-shaped
screwdriver to firmly tighten the
thumbscrews.
Use the included disc-shaped
screwdriver to firmly tighten the
thumbscrews.
After passing the upper thread through
the hole in the presser foot, pull the
thread by hand to check the thread
tension. If it is difficult to determine,
compare it with other needle bars
where looping does not occur.
If the thread tension cannot be
adjusted, thread wax and dust may
have collected in the upper or middle
thread guide plates, causing the thread
tension guide plates to rise. 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.
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.30
p.30
p.125
p.287
p.287
p.284
p.57
p.288