Brother International EF4-B561 Service Manual - Page 15

PRESSER, MECHANISM, Procedures, KNIVES

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El PRESSER FOOT AND FEED MECHANISM I ee (2> L Procedures Q'ty of screw I Remove presser foot 0. 1 (In case of safety stitch, after pull out pin 0, remove presser foot 0.) 2 Turn the pulley until the needle bar is raised to the highest position. LI KNIVES MECHANISM -OD Q'ty of screw 3 Remove needle plate S. 2 4 Remove differential feed dog O. 1 5 Turn the pulley until the under looper to the left mostly and remove main feed dog 0 . 1 6 Remove chain feed dog. 1 4 0 c9D Procedures Q'ty of screw 1 Loosen screw 0 and turn lower knife holder to the left direction, then tighten it. 2 Remove upper knife 49. S. 3 Remove upper knife holder O. 4 Remove nut 1 5 Remove lower knife as holding it by hand. 1 Q'ty of screw 6 Remove lower knife holder guide 0. 2 7 Remove lower knife holder 9 as holding it by hand. (Pull out spring for lower knife holder 1 also.) 8 Remove lower knife holder. supporter 0. 2 (At first loosen bolt Q under the needle plate support bracket (1) .) - 13 -

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El
PRESSER
FOOT
AND
FEED
MECHANISM
I
ee
-OD
(2>
L
Procedures
I
Remove
presser
foot
0.
1
3
Remove
needle
plate
S.
2
(In
case
of
safety
stitch,
after
pull
out
pin
0,
remove
presser
foot
0.)
2
Turn
the
pulley
until
the
needle
bar
is
raised
to
4
5
Remove
differential
feed
dog
O.
1
Turn
the
pulley
until
the
under
looper
to
the
left
mostly
and
remove
main
feed
dog
0
.
1
the
highest
position.
6
Remove
chain
feed
dog.
1
Q'ty
of
screw
Q'ty
of
screw
LI
KNIVES
MECHANISM
0
c9D
4
Procedures
Q'ty
of
screw
Q'ty
of
screw
1
Loosen
screw
0
and
turn
lower
knife
holder
6
Remove
lower
knife
holder
guide
0.
2
to
the
left
direction,
then
tighten
it.
7
Remove
lower
knife
holder
9
as
holding
it
by
2
Remove
upper
knife
49.
hand.
(Pull
out
spring
for lower
knife
holder
1
3
Remove
upper
knife
holder
O.
1
also.)
4
Remove
nut
S.
8
Remove
lower
knife
holder.
supporter
0.
2
5
Remove
lower
knife
as
holding
it
by
hand.
1
(At
first
loosen
bolt
Q
under
the
needle
plate
support
bracket
(1)
.)
—
13
—