Brother PE 150 User Manual
Page 66
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Symptom
5. Lower thread is visible on the top
surface of the fabric
6. Upper thread is loose
7. Embroidered pattern is out of shape
8. Threading is not possible
9. Thread is not cut during automatic
thread cutting.
Probable cause
1. The upper thread tension is too strong.
2. The upper or lower thread is not
threaded correctly.
3. The thread has been threaded
incorrectly through the inner rotary
hook.
4. A thread other than the designated
lower embroidery thread is being used.
1. The upper thread tension is too weak.
2. The upper or lower thread is not
threaded correctly.
3. Threads other than the designated
upper and lower embroidery thread are
being used.
1. The fabric has been placed in the
embroidery frame incorrectly.
2. The embroidery frame has been
attached to the machine incorrectly.
3. Thin or stretch fabric is being used with
no stabilizer fabric attached.
4. Threads other than the designated
upper and lower embroidery thread are
being used.
5. The thread is tangled.
1. The needle is installed incorrectly.
2. The needle threader lever will not turn.
1. Thread has accumulated around the
thread cutting knife.
Remedy
1. Decrease the upper thread tension
using the upper thread tension dial.
2. Thread the upper and lower threads
correctly.
3. Remove the bobbin, reset the bobbin
properly and pull the bobbin thread
through the channel.
4. Replace with the designated lower
embroidery thread.
1. Increase the upper thread tension
using the upper thread tension dial.
2. Thread the upper and lower threads
correctly.
3. Replace with the designated upper and
lower embroidery threads.
1. Place the fabric in the embroidery
frame correctly.
2. Attach the embroidery frame to the
machine correctly.
3. Attach stabilizer fabric.
4. Replace with the designated upper and
lower embroidery threads.
5. Cut and remove the tangled threads
inside the rotary hook using scissors.
Clean the race or inner rotary hook.
1. Install the needle correctly.
2. Turn the balance wheel to raise the
needle to its highest position.
1. Remove the needle plate and clean
away the accumulated thread.