Baby Lock Crown Jewel II (BLCJ18-2) Manual - Manual (Page 45)

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Optional Accessories
Channel Lock
Place the channel lock on either of the front wheels
of the machine as shown in (Figure 1) (not on the
carriage wheels). This will lock the wheels so that
the machine carriage will move from right to left
but not forward and backward. The purpose for
the horizontal channel lock is to stitch horizontal
straight lines across your quilt.
Ruler Base
Using rulers with a quilting machine requires a
wider base than the machine has. The ruler base
provides a stable base for ruler work.
Installing the Ruler Base
Bring the ruler base to the front of the machine,
straddling the needle bar. Line up the four notches
in the ruler base with the four protrusions on the
machine. Using both hands, grasp the ruler base
on both sides and flex upwards to spread the base
apart far enough to place on machine (Figure 2).
Snap into place.
Removing the Ruler Base
Leaving the ruler base in place would cause
undesirable drag on the quilt for free-motion
quilting. Remove the ruler base by gently flexing
the base upwards, until the notches are free
(Figure 3). Lift away from the machine.
Figure 3 Figure 2
Figure 1