Brother NX-450 - Manual (Page 13)

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Operation buttons
The operation buttons help you to easily perform various basic sewing machine operations.
a “Start/Stop” button
Press the “Start/Stop” button to start or stop sewing. The
machine sews at a slow speed at the beginning of
sewing while the button is depressed. When sewing is
stopped, the needle is lowered in the fabric. For details,
refer to “Starting to sew” (page 52).
The button lights up in green, red or orange, depending
on how the sewing machine is being operated.
b “Reverse/Reinforcement Stitch” button
Press the “Reverse/Reinforcement Stitch” button to sew
reverse stitches or reinforcement stitches. Reverse
stitches are sewn by keeping the button pressed down to
sew in the opposite direction. Reinforcement stitches
are sewn by sewing 3 to 5 stitches on top of each other.
For details, refer to “Securing the stitching” (page 54).
c “Needle Position” button
Press the “Needle Position” button to raise or lower the
needle. Pressing the button twice sews one stitch.
d “Thread Cutter” button
Press the “Thread Cutter” button after stopping sewing
to cut both the upper and the bobbin threads. For
details, refer to “Cutting the thread” (page 55).
e Sewing speed controller
Slide the sewing speed controller to adjust the sewing
speed.
CAUTION
Note
z Do not press (“Thread Cutter” button) if
there is no fabric under the presser foot or
while the machine is sewing, otherwise
damage to the machine may occur.
z When cutting thread thicker than #30, nylon
thread or other special threads, use the
thread cutter on the side of the machine. For
details, refer to “Cutting the thread” (page
55).
Green: When the machine is ready to start
sewing or while it is sewing
Red: When the machine is not ready to
start sewing
Orange: When the bobbin winder shaft is
moved to the right for winding the
bobbin thread onto the bobbin
● Do not press (“Thread Cutter”
button) after the threads have already
been cut, otherwise the needle may
break, the threads may become tangled
or damage to the machine may occur.