Baby Lock Ovation (BLES8) Instruction and Reference Guide - Manual (Page 30)

With the Ovation overlock Thread Delivery System, the upper and lower looper threads lock
together evenly over the cut fabric edge(s) to form a flat, non-rolling pattern of overlocking stitches
on both sides of the fabric.
The left (O1) needle thread interlocks with both looper threads at the stitching line to create the seam.
The right (O2) needle thread, visible on the top side of the stitch, interlocks with both the loopers to
add durability. The thread, that resembles a zigzag on the upper side of the fabric, is from the upper
looper. The thread, that resembles a zigzag on the lower side of the fabric, is from the lower
looper.
Move the stitch selector lever to "A".
For a perfect 4-thread overlock stitch, follow the suggested settings and threading diagram below.
O
V
E
R
L
O
C
K
S
T
I
T
C
H
E
S
E
X
P
R
E
S
S
28
4-Thread Overlock
C-1
C-2
C-3
O-1
O-2
UL
NEEDLES
O-1, O-2
LENGTH
2.5-4.0
WIDTH
6.5-7.5
STITCH
SELECTOR
A
WAVE/OVERLOCK
SELECTOR
OVERLOCK
∧
∨