Care and Maintenance 181
5
Insert the bobbin case so that the projection
on the bobbin case aligns with the spring.
a Projection
b Spring
a Bobbin case
Insert the tabs on the needle plate cover into the
needle plate, and then slide the cover back on.
a Needle plate cover
CAUTION
Cleaning the bobbin case
Thread wax and dust easily collect around the notch in the
tension spring on the bobbin case, resulting in an incorrect
thread tension. Therefore, the bobbin case should be
cleaned as necessary should tension problems arise.
When cleaning the bobbin case, use business card
stock or another type of paper of similar thickness
and sturdiness in order to prevent pieces of paper
tearing off and getting lodged in the bobbin case.
Follow steps to remove bobbin case
of
“Cleaning the race” (page 180).
Using a piece of paper of adequate thickness
and sturdiness, slide the paper between the
tension plate base and the tension spring and
also slide the paper behind the notch of the
spring to remove any dirt or dust.
a Tension plate base
b Notch
c Paper (e.g. business card type)
d Tension spring
e Bobbin case projection (stopper)
Memo
z
Do not bend the tension spring. In addition,
do not use anything other than recommended
paper to clean the bobbin case.
Use the enclosed cleaning brush to remove
any lint and dust from inside the bobbin case.
Reinsert the bobbin case and needle plate cover
assuring the bobbin case projection (stopper) is
touching the bracket spring.
• Refer to steps and of “Cleaning the
race” (page 181).
●
Never use a bobbin case that is scratched,
otherwise the upper thread may become
tangled, the needle may break or sewing
performance may suffer. For a new bobbin
case (part code: XC3153-221 (green marking),
XC8167-451(no color on the screw)),
contact
your retailer or the nearest authorized
service center.
● Be sure that the bobbin case is correctly
installed, otherwise the needle may break.
a
b
1
2
1
a
c
b
a
d
d
e
a
To Next Page
Loading...
Need help?
General
