Operation Manual

Adjustment
11.04.11
Bobbin-case opener
(On
Model
1246
make
these
adjustments
on
both
bobbin
openers.)
•
Thread
the machine,
insert
test material
and allow
the
presser
foot to
rest
on the
needle
plate.
•
Sew
a
few
stitches
by
turning
the
handwheel
and carry
out
a
check
in accordance
with
the
requirement.
• Turn
bobbin-case
opener
1
(screw
2)
in accordance
with
the
requirement.
Requirement
The
needle
thread
must
not
be
clamped
between
the
bobbin-case opener
1
and the
bob
bin-case
base
3
nor may
it be
clamped
between
projection
4
and
the
retaining
trip
of the
needle
plate
(see arrows).
Fig.
1 1 . 1
1
AFF
11
- 13