Brother 888-G30, Operation Manual

Page: 110 / 124

Troubleshooting
108
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Checking machine operations
If the needle plate has been removed, check machine
operations to confirm that installation has been completed
correctly.
a
Turn on the machine.
b
Select stitch .
c
Slowly turn the handwheel toward you
(counterclockwise), and look from all sides to check
that the needle falls at the center of the opening in the
needle plate.
If the needle contacts the needle plate, remove the
needle plate, and then install it again, starting with step
m
in “Removing the fabric from the machine” on
page 106.
d
Select stitch . At this time, increase the stitch length
and width to their maximum settings.
• For details on changing the settings, refer to “Setting
the stitch width” on page 38 and “Setting the stitch
length” on page 38.
e
Slowly turn the handwheel toward you
(counterclockwise) and check that the needle bar and
feed dogs operate correctly.
If the needle or feed dogs make contact the needle
plate, the machine may be malfunctioning; therefore,
contact your nearest Brother authorized service center.
f
Turn off the machine, and then install the bobbin and
presser foot.
Never use a scratched or damaged presser foot.
Otherwise, the needle may break, or sewing
performance may suffer.
• Refer to “Installing the bobbin” on page 22 and
“Replacing the presser foot” on page 29.
g
Correctly thread the machine.
• For details on threading the machine, refer to “Upper
Threading” on page 24.
h
Perform trial sewing with cotton fabric.
If the thread becomes tangled under the
bobbin winder seat
If the bobbin winding starts when the thread is not passed
under the pretension disk of the bobbin winding thread guide
correctly, the thread may become tangled under the bobbin
winder seat.
a
Stop the bobbin winding.
b
Cut the thread with scissors beside the bobbin winding
thread guide.
c
Slide the bobbin winder shaft to the left, and then
remove the bobbin from the shaft and cut the thread
leading to the bobbin in order to be able to completely
remove the bobbin from shaft.
d
Hold the thread end with your left hand, and wind off
the thread clockwise from under the bobbin winder
seat with your right hand as shown below.
Note
• Do not yet install the presser foot and thread.
1
Opening in the
needle plate
2
Handwheel
Note
• Incorrect sewing may be the result of incorrect
upper threading or sewing thin fabrics. If there are
poor results from the trial sewing, check the upper
threading or the type of fabric being used.
CAUTION
• Do not remove the bobbin winder seat even if
the thread become tangled under the bobbin
winder seat. Otherwise, the cutter in the
bobbin winder seat may be damaged.
• Do not remove the screw on the bobbin
winder guide post, otherwise the machine may
be damaged; you cannot wind off the thread
by removing the screw.
1
Screw of the bobbin winder guide post
1