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Brother EF4-V41 - Under Looper Mechanism

Brother EF4-V41
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[2]
Under looper
mechanism
Eccentric
part
(1)
When
the
crank shaft 0 rotates in
the
direction
of
the arrow, the under looper connecting rod @
mounted on
the
eccentric part
of
the
crank shaft
moves
up and down.
(2)
The
under looper shaft
arm@)
oscillates.
(3)
The
motion
is
transmitted
to
the under looper holder 0 and
the
under looper
@}
via the under looper
shaft e.
-17-
From the library of: Superior Sewing Machine & Supply LLC

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