Operation Manual

62
APPENDIX
p
Insert the bobbin case by following step g in
“Cleaning the race” (page 58).
q
Attach the needle plate cover according to steps
h and i in “Cleaning the race” (page 58).
r
Check the condition of the needle, and then
install it.
• Refer to “Checking the needle” (page 19) and
“Replacing the needle” (page 20).
Note
● After completing this procedure, continue with the
following procedure in “Checking machine
operations” to check that the machine is operating
correctly.
Memo
● Since the needle may have been damaged when
the fabric was caught in the machine, we
recommend replacing it with a new one.
■ 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 (middle needle position stitch).
Note
● Do not yet install the presser foot and thread.
c
Slowly turn the handwheel toward you
(counterclockwise), and look from all sides to
check that the needle falls at the center of the
hole 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” (page 61).
a Hole in the needle plate
b Handwheel
d
Select zigzag stitch . At this time, increase the
stitch length and width to their maximum settings.
• Refer to “Adjusting the stitch length and width”
(page 24).
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 contact the needle plate,
the machine may be malfunctioning; therefore,
contact your nearest authorized service center.
f
Turn off the machine, and then install the
bobbin and presser foot.
• Refer to “Lower threading” (page 13) and
“Replacing the presser foot” (page 22).
g
Correctly thread the machine.
• Refer to “Upper threading” (page 15).
Note
● The thread may have become tangled as a result of
incorrect upper threading. Make sure that the
machine is correctly threaded.
h
Perform trial sewing with normal fabric.
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
● Never use bent needles. Bent needles can easily
break, possibly resulting in injuries.