9.
EXPENDABLE
PARTS
(1) General expendable parts
Part
No.
Description
Needle
B1818280000
Shuttle
B24222800A0
Moving
knife
B2424280000
Counter
knife
B2426280000
Needle
hole
guide
B3112761000
Thread
take-up
spring
B2303280000
Tension release
pin
Caution
in
installation
Check
that
the
clearance
of
0.3(0.011")
to 0.5 mm
(0.019")
is provided
between the shuttle
and
the
shuttle driver. If
not,
correct it in
accordance with the pertinent "Standard Adjustment".
Select a proper washer for the moving
knife
and
perform adjustment so
that
the moving knife blade engages with
the needle hole guide by 0.15 mm
(0.005")
rs^
o
" o
°
6.
Perform adjustment to provide a 0.1
(0.003")
to
0.15
mm
(0.005")
difference
in level
between
the
counter
knife
blade
and
7
the needle
hole
guide.
m >
lo
—
to
o
) fo S
o
" o
oci
Replace this part if its needle hole has been scratched or grown
bigger in diameter. Whenever installing a new needle hole guide,
check
the
height
of
the
moving and counter knives.
(2) Expendable parts to be replaced infrequently
Part
No.
Description
Caution
in
installation
13503750
High-speed
clutch
disc Refer to 6. Disassembling/assembling procedures for replacement.
13504402
Changing
pulley
13504709
Low-speed pulley
B1215280000
Stop-motion
cam
latch
B1217280000
Stop-motion
cam
latch
driving spring
13520309
(Changing
pulley
pressing
plate
Replace this part when the portion in
contact
with
the
ball has been
depressed, scarcely providing no tilt.
13520408
Driving
plate
Replace
this
part
when
point
A has
worn
out
and
the
moving
knife
is allowed
to
move
in
low-speed
operation,
producing tapping
sound.
f )|
13522206
Stop-motion
regulating
cam
roller
Whenever replacing
the
roller,
the
snap ring
RC0470611KP
should
be also
replaced
with
a
new
one.
13523808
Qutch
spring Refer to 6. Disassembling/assembling grocedures for replacement.
(3) Parts likely
to
be lost or damaged during repair
Part
No.
Description
Caution
in
installation
B2549280000
Balls
(seven)
for
feed
bracket
Apply
grease to
these
balls to
prevent
them
from
falling
when
installing
them.
SS1060210TP
Needle
hole
guide
setscrews
(two)
B1253980000
Stop-motion
ball
Apply
grease
to
the
ball
before
installing
it.
44-
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