Brother International EF4-B561 Service Manual - Page 16

UNDER, LOOPER, MECHANISM, Procedures

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UNDER LOOPER MECHANISM A Procedures Q'ty of scr ew 1 Turn the pulley until under looper 0 to the left mostly, and the remove movable needle 2 guard 0. 2 Set under looper Q at the center position in the operation range, and then remove under 1 looper O. 5 OVER LOOPER MECHANISM 2) I Procedures Q'ty of screw 3 Remove looper thread take up (L) Q. 1 4 Remove under looper holder 0. 1 5 Remove over looper thread take-up (R) Q and under looper thread take-up (R) Q 1 6 Remove under looper thread guide O. 1 Th ED r•• Procedures 1 Remove inside cover 0. (Set over looper 0 to the left mostly.) 2 Remove over looper 0. Q'ty of screw 2 1 Procedures 'ty of Qssccrew 3 Remove over looper driving lever .1) and over looper holder guide assembly 0 at the same time. 1.3 - 14 -

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UNDER
LOOPER
MECHANISM
I
Q'ty
Procedures
scr
of
screw
1
Turn
the
pulley
until
under
looper
0
to
the
left
mostly,
and
the
remove
movable
needle
2
guard
0.
2
Set
under
looper
Q
at
the
center
position
in
the
operation
range,
and
then
remove
under
1
looper
O.
5
OVER
LOOPER
MECHANISM
Procedures
Q'ty
of
screw
3
Remove
looper
thread
take
up
(L)
Q.
1
4
Remove
under
looper
holder
0.
1
5
Remove
over
looper
thread
take-up
(R)
Q
and
under
looper
thread
take-up
(R)
Q
1
6
Remove
under
looper
thread
guide
O.
1
2)
ED
r•
•
Th
Procedures
1
Remove
inside
cover
0.
(Set
over
looper
0
to
the
left
mostly.)
2
Remove
over
looper
0.
Q'ty
of
screw
2
1
'ty
Procedures
Qscr
of
screw
3
Remove
over
looper
driving
lever
.1)
and
over
looper
holder
guide
assembly
0
at
the
same
time.
1.3
—
14
—