166
Cleaning the bobbin case
Thread wax and dust easily collect around the
hole in the tension-adjusting spring on the bobbin
case, resulting in an incorrect thread tension.
Therefore, it should be cleaned each time when
the bobbin is changed.
Use a piece of paper with the thickness of a
business card.
a
Open the hook cover, remove the bobbin
case, and then remove the bobbin. (Refer to
page 32.)
b
Slide the paper under the tension-adjusting
spring to remove any dust.
Use a corner of the paper to remove any dust from
around the hole.
1
Tension-adjusting spring
2
Hole
3
Paper
c
Use the included cleaning brush to remove
any lint and dust from inside the bobbin
case.
d
After cleaning is finished, insert the bobbin
into the bobbin case and the bobbin case
into the hook, and then close the hook
cover. (Refer to page 33.)
Cleaning the thread paths of the
upper threads
If dust or lint has accumulated in the thread guides
or tension unit in the paths of the upper threads,
the thread may break while embroidery is being
sewn. Periodically clean the thread paths.
■
Cleaning the thread guides
a
Use the included cleaning brush to remove
any lint and dust from below the thread
guide plates.
Clean the thread guide plates for both the upper thread
guides and the middle thread guides.
1
Upper thread guide
2
Middle thread guide
Note
• Do not bend the tension-adjusting spring. In
addition, do not use anything other than
thick paper or paper of the specified
thickness to clean the bobbin case.
Summary of Contents for 882-T51
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