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Care and Maintenance
46
i
Grasp the bobbin case, and then pull it out.
j
Use the cleaning brush or a vacuum cleaner to remove
any lint and dust from the race and bobbin thread
sensor and the surrounding area.
1 Cleaning brush
2 Race
3 Bobbin thread sensor
k
Insert the bobbin case so that the
mark on the
bobbin case aligns with the
mark on the machine.
• Align the and
marks.
1 mark
2
mark
3 Bobbin case
• Make sure that the indicated points are aligned
before installing the bobbin case.
l
Insert the tabs on the needle plate cover into the
needle plate, and then slide the cover back on.
Reattach the bobbin cover.
Touch panel is malfunctioning
If the screen does not respond correctly when you touch a key
(the machine does not perform the operation or performs a
different operation), follow the steps below to make the
proper adjustments.
a
Holding your finger on the screen, turn the main
power switch to OFF and back to ON.
The touch panel adjustment screen is displayed.
b
Lightly touch the center of each +, in order from 1 to 5.
c
Turn the main power to OFF, then turn it back to ON.
Adjusting the bobbin thread tension
If the desired stitching cannot be achieved after adjusting the
tension of the upper thread with the thread tension dial
(page 35), adjust the tension of the bobbin thread.
Set the thread tension dial to “4”, and then adjust the bobbin
thread tension as described below.
Using a small slotted screwdriver, turn the slotted-head (-)
screw to adjust the bobbin case tension.
1 Do not turn the phillips screw (+).
2 Adjust with a screwdriver (small).
IMPORTANT
• Do not apply oil to the bobbin case.
a
b
c
a
b
ab
c
CAUTION
• Never use a bobbin case that is scratched or has
a burr on it. Otherwise the upper thread may
become tangled, the needle may break and cause
injury. For a new bobbin case, contact your
nearest Brother authorized service center.
• Be sure that the bobbin case is correctly
installed, otherwise the needle may break and
cause injury.
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