Brother International EF4-B561 Service Manual - Page 28

COVER, Procedures

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a COVER r 4r IRO Parallel about 0.5 mm O e 0 Procedures Q'ty of screw 1 Temporarily fasten front cover supporter 0 on machine body. 2 2 Temporarily fasten front cover 0 on oil reservoir. (Close front cover) 2 3 Temporarily fasten front cover guide 0 parallel to machine body. 2 0, * Make an adjustment so that, when front cover 0 comes off front cover guide it can be put back in place as before. . The following items from 0 to 0 must be made while checking. 4 Adjust front cover 0 so it is parallel to machine body and has a clearance about 0.5 mm. Overlock Stitch Safety Stitch 4s. O -- About 0.5 mm 5 Make an adjustment so that, when upper knife 0 is down lowest, there is a clearance of about 0.5mm between front cover 0 and upper knife 0. 0.5 - I mm About 0.5 mm Make an adjustment so that front cover will be between upper knife 0 and double chain stitch looper and their clearance will be as shown above. (T) Ry OO 6 Adjust the clearance between front cover Q and front cover guide 0 to 0.5 to 1 mm. 7 Front cover is held securely by front cover supporter 410 and stopper spring 0. - 26 -

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a
COVER
r
4r
IRO
e
0
Parallel
O
about
0.5
mm
Procedures
Q'ty
of
screw
1
Temporarily
fasten
front
cover
supporter
0
on
machine
body.
2
2
Temporarily
fasten
front
cover
0
on
oil
reservoir.
(Close
front
cover)
2
3
Temporarily
fasten
front
cover
guide
0
parallel
to
machine
body.
2
*
Make
an
adjustment
so
that,
when
front
cover
0
comes
off
front
cover
guide
0,
it
can
be
put
back
in
place
as
before.
.
The
following
items
from
0
to
0
must
be
made
while
checking.
4
Adjust
front
cover
0
so
it
is
parallel
to
machine
body
and
has
a
clearance
about
0.5
mm.
Overlock
Stitch
4s.
--
About
0.5
mm
5
Make
an
adjustment
so
that,
when
upper
knife
0
is
down
lowest,
there
is
a
clearance
of
about
0.5mm
between
front
cover
0
and
upper
knife
0.
0.5
—
I
mm
Safety
Stitch
O
About
0.5
mm
Make
an
adjustment
so
that
front
cover
will
be
between
upper
knife
0
and
double
chain
stitch
looper
and
their
clearance
will
be
as
shown
above.
OO
Ry
(T)
6
Adjust
the
clearance
between
front
cover
Q
and
7
Front
cover
is
held
securely
by
front
cover
sup
-
front
cover
guide
0
to
0.5
to
1
mm.
porter
410
and
stopper
spring
0.
—
26
—