Brother 3034D Handbook page 26

Storage for the stitch finger <A> is provided
on the inside of the front cover.
NOTE:
Make sure to install stitch finger when sewing
regular overlock stitches.
4. Adjust the stitch width dial up to the "R"
position.
<A>
<A> Selection mark
5. Adjust the stitch length.
Set the stitch length adjustment dial to "R to 2"
position (for narrow overlock stitch: R to 2, for
rolled hemming stitch: R).
<A>
<A> Selection mark
24
<A>
3