Operation Manual

11.
Regulating
the
Bobbin
Thread
Tension
ignier
rertsion
s
obrainec
Dy
left
turtts
or
ne
tension
scrw
with
tne
od
of
the
stitcH
screw
driver
Ri 0 ht
turns
of
mar
screw
will
increase
Inc
tension.
P
6278
Perfect
stcti
Neecle
threca
tension
moo right
or
boobin
thread
tension
too
weaK
with
eHect
locking of
needle
and
bobbin threads in
the
center
of
the
marerta
results
mm
neat
and
elastic
seams.
Needle
threcd
rension
too
weak
or
bcbon
thread
tension
moo tight
12.
Correct
Tension
Regutation
16