27.
ADJUSTING
THE
BOBBIN
CASE
OPENING
LEVER
A
WARNING:
Turn
OFF
the
power
before
startingthe
work
so as topreventaccidentscausedbyabruptstartofthe
sewing
machine.
0
1)
Turn
the
handwheel
to
move
bobbin
case
opening
lever
O
in
the directionofthe arrow
O,
and loosen screw
O.
2)
Turn
the
handwheel
to
move
bobbin
case
opening
lever
O
in
the direction ofarrow ©, and loosen screw ©.
3)
Turn
bobbin
case O
in
the
direction
of
arrow
0 to
until
bob
bin
case
stopper
0
rests
in
groove
0
on
throat
plate
O.
In
this state, adjust so that a clearance of 0.1 to 0.3 mmis pro
vided
betweentop end 0 of
bobbin
case openingleverand
protrusion
0 onthe
bobbin
case
when
they
approach
most.
Then,
tighten
screws 0 and
0.
28.
POSITION
OF
THE
COUNTER
KNIFE
AND
ADJUSTMENT
OF
THE
KNIFE
PRESSURE
WARNING:
Turn
OFF
the
power
before
starting
the
work
soasto
prevent
accidents
caused
by
abrupt
startofthe
sewing
machine.
1)
2)
•
3)
4)
Left hook (only for LU-2260N-7)
End face of
the
groove in the
slide
plateofthebed 0
?7
Right hook
End face of
the
groove in the
slideplateofthe bed 0
/
4.8
mm
End
face
of
the
throat place 0
Gauge
<o
<o'
Counter
knife
Knife
pressure
starts
to
be
developed.
Align
the
handwheel
pointer
to
the
marker
line
of
scale
K
on
the
handwheel.
...
, „
Under
the
aforementioned
state,
move
the
moving
knife
by
hand
to
its
forward
travel
end
(where
the
thread
trimming
solenoid
is
fully
drawn.)
Adjustingthe counter knife ^ a x . u
•«
>i
o
Loosen
screw
O
in
the
counter
knife
base,
and
adjust
the
position
of
the
counter
knife
so
that
top
end 0 of
counter
knife
is
4.8
mm
away
from
end
face
0
of
throat
plate
and
23.6
mm
away
from
end
face
©
of
the
slide
plate
of
the
bed.
Then
tighten
screws
O.
(Use
the
gauge
supplied
with
the
machine
as
reference.)
Adjusting
the
knife
pressure
.
xu
. .j
Loosen
screws
0
of
the
moving
knife.
Turn
the
handwheel
to
move
the
moving
knife
and
adjust
the
knife
pressure.
In
the
standard
state,
the
knife
pressure
is
developed
from
the
position
where
the
top
end
of
the
moving
knife
is
spaced
5.5
to
6.5
mm
from
the
top
end
of
the
counter
knife.
29.
ADJUSTING
THE
LIFTING
AMOUNT
OF
THE
PRESSER
FOOT
AND
THE
WALKING
FOOT
The
lifting
amount
ofthe presser
foot
andthe
walking
foot
isad
justed
using
dial
O .
Turn
the
dial
clockwise
to
increase
the
lifting
amount
or
counterclockwise
to
decrease
it.
-14-
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