Brother International SE725 Operation Manual - Page 90

Checking machine operations

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Troubleshooting Turn the handwheel to check that the feed dogs move smoothly and do not contact the edges of the slots in the needle plate. cd cd a b 1 The feed dogs do not contact the needle plate. 2 The feed dogs contact the needle plate. 3 Needle plate 4 Feed dogs Insert the bobbin case by following step k in p "Cleaning the race" on page 83. Attach the needle plate cover according to step l in q "Cleaning the race" on page 83. Check the condition of the needle, and then install it. r If the needle is in a poor condition, for example, if it is bent, be sure to install a new needle. • Refer to "Checking the needle" on page 28 and "Replacing the needle" on page 28. 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. Turn on the machine. a  The needle will automatically move left and right. Note • If an error occurs, the machine may be malfunctioning; so contact your authorized Brother dealer or the nearest Brother authorized service center. Select Straight stitch (Middle). b * Refer to "Stitch Chart" on page 41. Note • Do not yet install the presser foot and thread. Slowly turn the handwheel toward you c (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 or feed dogs contact the needle plate, the machine may be malfunctioning; therefore, contact your nearest Brother authorized service center. 1 Opening in the needle plate a 2 Handwheel b Turn off the machine, and then install the bobbin and d 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. Correctly thread the machine. e • For details on threading the machine, refer to "Upper Threading" on page 23. Perform trial sewing with cotton fabric. f 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. 88

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Troubleshooting
88
Turn the handwheel to check that the feed dogs move
smoothly and do not contact the edges of the slots in the
needle plate.
1
The feed dogs do not contact the needle plate.
2
The feed dogs contact the needle plate.
3
Needle plate
4
Feed dogs
p
Insert the bobbin case by following step
k
in
“Cleaning the race” on page 83.
q
Attach the needle plate cover according to step
l
in
“Cleaning the race” on page 83.
r
Check the condition of the needle, and then install it.
If the needle is in a poor condition, for example, if it is
bent, be sure to install a new needle.
•
Refer to “Checking the needle” on page 28 and
“Replacing the needle” on page 28.
■
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.
The needle will automatically move left and right.
b
Select Straight stitch (Middle).
*
Refer to “Stitch Chart” on page 41.
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 or feed dogs contact the needle plate, the
machine may be malfunctioning; therefore, contact
your nearest Brother authorized service center.
d
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.
e
Correctly thread the machine.
•
For details on threading the machine, refer to “Upper
Threading” on page 23.
f
Perform trial sewing with cotton fabric.
Memo
•
Since the needle may have been damaged when
the fabric was caught in the machine, we
recommend replacing it with a new one.
Note
•
If an error occurs, the machine may be
malfunctioning; so contact your authorized Brother
dealer or the nearest Brother authorized service
center.
Note
•
Do not yet install the presser foot and thread.
a
b
d
c
d
c
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.
a
b