Baby Lock Enlighten (BLE3ATW-2) Instruction and Reference Guide - Manual (Page 22)

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3-Thread Overlock-Wide
A
B
The 3-thread overlock wide stitch is perfect for edge-finishing most
woven fabrics and for seaming knits that do not require the extra
durability that a fourth thread provides.
It's easy to convert your Enlighten to serge with 3 threads by
simply eliminating either needle.
To convert your serger to a 3-thread overlock wide (7.5mm), cut the
right needle thread just above the needle eye (fig. A). Remove the
right needle and right needle thread completely from the machine.
Re- tighten the needle clamp screw slightly to prevent the screw
from working out (fig. B).
Move the stitch selector lever to "A".
For left needle, 3-thread overlock-wide, follow the suggested set-
tings and the threading diagram below.
NEEDLES
left
LENGTH
2-3
WIDTH
7.5
STITCH
SELECTOR
A
WAVE
SELECTOR
OVERLOCK