Threading The Upper Looper - Brother ST4031HD Operation Manual

Threading the upper looper

Run the thread in the sequence illustrated,
following the green color and the numbers next to
each threading point.
1. Open the front cover by sliding to the right and
guiding the top toward you.
2. Pull the thread off the spool and directly up
through the thread holder 1 and the thread
plate 2 on the thread tree from back to front.
3. Pass the thread thourgh the hole 3 on the top
of machine.
4. Pass the thread through the tension disc 4
which is in the channel next to the green
tension adjustment dial.
5. Guide the thread down the channel and
pass the thread through the threading
points 5678 next to the green color
marks following the numerical order in the
accompanying illustration.
NOTE:
Make sure to thread only through the upper
thread take up 7.
6. Pass the thread through the eye of the upper
looper 9.
NOTE:
If the upper looper thread breaks during sewing:
This may be caused by the lower looper thread
getting caught on the upper looper. If this happens,
lower the upperlooper by turning the hand wheel,
remove the lower looper thread from the upper
looper, and re-thread the upper looper from at
least the tension disc.
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