Operation Manual

Adjustment
11.05.14
Bobbin-thread
clamp
spring
(On
Model
1246
make
these
adjustments
on
both
clamp
springs.)
The
bobbin-case
must
be
able
to
be
inserted
and
removed
from
the
hook
without
any
interference..
•
Align
carrier
1 (screws
2)
in
such
a
way
that
it
is
in
the
middle
of
its
adjustment
range
and
parallel
to
the
bedplate
of
the
machine.
•
Unhook
spring
3,
•
Manually
pivot
thread
catcher
4
over
clamp
spring
5.
•
Bend
clamp
spring
5
in
accordance
with
requirement
1
•
Hook
spring
3
back
in
again.
Requirement
1.
Between
clamp
spring
S
and
the
bottom
of
thread
catcher
4,
there
must
be
a
distance
of
0.3
mm.
2.
At
the
front
point
of
reversal
of
thread
catcher
4,
the
points
of
clamp
spring
5
must
be
flush
with
the
back
edge
of
catcher
4 (see
arrow).
There
must
be
a
distance
of
approx.
12
mm
between
the
inner
edge
of
clamp
spring
5
and
guide
sleeve
7.
6
1
Fig.
11 ‘29
11
-
34
PFAF