Baby Lock Ovation (BLES8) Instruction and Reference Guide - Manual (Page 55)

Balanced tension -
Triple Cover stitch has correct tension when the needle thread
sew three rows of straight stitching on the top side and the chain
looper forms a zigzag on the underside of the fabric.
Needle thread is too loose -
Turn the chain/cover stitch needle tension dial to a higher
number. Or turn the chain / cover stitch looper tension dial away
from the wide stripe at the words "Cover Stitch" , but staying
within the solid gold line. This will tighten the chain looper thead
on the underside of the stitch.
Needle thread is too tight -
For a looser tension turn the chain / cover stitch needle tension
dial to a lower number. Make sure that the chain / cover stitch
looper tension dial is set at the solid stripe with the words "Cover
Stitch".
C
H
A
I
N
/
C
O
V
E
R
S
T
I
T
C
H
E
X
P
R
E
S
S
53
Triple Cover Stitch (Cont.)
Balanced tension
Needle thread is too loose
Needle thread is too tight
C-1
C-2
C-3
O-1
O-2
UL
* Tension Adjustment
∧
∨
underside
top side