Brother PE-770 - Manual (Page 73)

Care and Maintenance 71
3
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f
Use the cleaning brush or a vacuum cleaner to
remove any lint and dust from the race and
bobbin thread sensor and their surrounding
area.
a Cleaning brush
b Race
c Bobbin thread sensor
• Do not apply oil to the bobbin case .
Note
! If lint or dust collects on the bobbin thread
sensor, the sensor may not operate correctly.
g
Insert the bobbin case so that the projection
on the bobbin case aligns with the spring.
a Projection
b Spring
a Bobbin case
h
Insert the tabs on the needle plate cover into
the needle plate, and then slide the cover back
on.
a Needle plate cover
CAUTION
a
b
c
a
b
1
2
1
● Never use a bobbin case that is scratched,
otherwise the upper thread may become
tangled, the needle may break or
embroidering performance may suffer. For
a new bobbin case (part code: XD1855-
251), contact your nearest authorized
service center.
● Be sure that the bobbin case is correctly
installed, otherwise the needle may break.
a