Nakajima 181L-2, 181L-20 User Manual
INSTRUCTION
BOOK&PARTS
BOOK
MODEL
181L-2
181L-20
1
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Single Needle,
&
Lower
Feed
Lockstitch,
Sewing
Machine
Upper
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NAKAJIMA
SEISAKUSHO
CO., LTD.
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CONTENTS
OUT
1 .
1
SPECIFICATION
2.
LINE
.....................................................................
PREPARATION
2-1
SETTING
2-2
SEWING
BEFORE
UP
THE
SPEED··
.. · ......
I
......................................................
OPERATING
MACHINE................................................ 2
··
....
····
..
··
.. · ... · .. · .. · .. · .. · ......
THE
MACHINE
····
........ ·
!
... ·..
2
3-1
3-2
4.
~
4-1
4-2 r
4-3
4-4 *
4-5
4-6
4-7
4-8
4-9
4-10
4-11
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5
6 •
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3 0 CAUTION
3-1
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3
3
4
4
8
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10
4 0
6 0
LUBRICATION
3-2
ADJUSTING
HOW
4-1
4-2
4-3
4-4
4-5
4-6
4-7
4-8
4-9
4-10
4-11
TO
INSERTING
WINDING
THREADING
THREAD
THREAD
ADJUSTING
ADJUSTING
ADJUSTING
ADJUSTMENT
TIMING
FORWARD
OPTIONAL
COMPONENT
IN
USE
....................................................................... 3
OF
THE
OILING
TO
THE
HOOK
SET THE
THE
NEEDLE
THE
BOBBIN
THE
TENSION
TAKE
UP
THE
THE
THE
OF
BETWEEN
AND
REVERSE
PARTS
MACHINE
....................................................
THREAD
UPPER
THREAD
............................................................... 5
SPRING
PRESSURE
HEIGHT
STITCH
THE
OUTSIDE
NEEDLE
..
......
.... ....
OF
PRESSURE
OF
FEED
LENGTH
FOOT
AND
ROTALY
STITCH
LENGTH
....
..
...................................... 4
....
DOG
AND
................................................
PARTS
..........................................
PART
................. 3
....
...
.... .... ....
.....
... ...
...
.... ....
..
....
...... ......
....
FOOT
.....
......
.....
................................ 6
REVERSE
AND
FEED
...... 6
INSIDE
FOOT
....
HOOK
.................. 8
.......................... 8
~
..
· 7
to
4-
5
6
9
1
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12
13
7 .
LIST
8 .
ACCESSORIES
OF
PARTs
LIST
.......................................................
................................................
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13
OUTLINE
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This is a single needle, lock
hook and upper and lower feed industrial sewing machine designed
for sewing of medium and heavy duty materials.
1)
To
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2)
3 ) In
stitch,
Rationally designed upper feed1mechanism
in
linkage with the feed dog
stitching without puckering
sewing materials, which
sewned
Adjustable widely the length of
the graduation dial and this is especially suitable
ing on
finish. Big adjustment of the
0 cording works
piled
"sub-class"
binders and
much.
tents,
15
leathers,
order
products
mm
.
seats,
by
the
repuired
etc
to meet various sewing purposes,
model machines,
so
on
.•
will
canvas,
knee
assist
results
lifter
on
link type take-up,
performs
to
obtain smooth and clean
or
wrinkle on various kinds
in
increasing quality
stitch
between
etc.,
required on long
presser
indispensable the piping
the
materials
presser
your sewing requirements
feet
suGh
feet,
rotary
perfectly
0 - 9
mm
for
the
stitch
lift between
as
sponge,
our
prepared
feed dogs,
very
of
of
by
sew-
or
1 .
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Thread to be used
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Sewing speed (MAX)
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Needle bar stroke
Presser feet lift
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Application
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Stitch lenght
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Needle
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Sewing hook
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Lubricaton
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SPECIFICATIONS
Medium-heavy and heavy weight materials
¥JIX.J:If7
7mm
by
DB
Large rolary hook automatically lubrisaled
Hand oiling (Hook part lubrisated automatically)
18IL-2
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# 8
-#50
2000spm
0-9mm
35mm
mm
hand lever
xi
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15mm
by
knee lifter
(DP X
17
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o Use M type of motor
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A.,
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pu-
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lley and V belt.
o Lower the speed
the thread was cut by
er
heated.
in
case
ov-
o Please do use our selec-
ted component I parts espe-
cially such
og,
hook, bobbin case and
bobbin.
as
the feed
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Fig
1
2 . PREPARATION
THE
2-1 Setting up the machine
MACHINE
POSITION
AND
DRIP PAN
BEFORE
OF
KNEE LIFTER
Fig
2
OPRATING
2-2
11
11
f,.l
MODEL
181L-2
fi
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Sewing
2,000
1,600
speed
2-2
SEWING SPEED
.:c-
~-
7"-
Motor
pulley size (outer diametre) V belt size
50Hz 60Hz
2P
70
55
4 p 2 p 4 p
140
110
Jv
(mm)
60
45
115
90
v
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2 p 4 p
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3 . CAUTION
3-1
LUBRICATION
o Lubricate properly to all the
oles indicated by arrows
rated before operation.
o Oiling to the oil reservoir situated
in
the under the machine bed.
Supply the oil up to the level of
arking line shown in the Fig5 when
the amount of oil became less
an ~ to the level during operation.
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*According to the frequency of
eration, periodically clean out any
lint or other maste around the hool
and between the feed rows.
3-2
ADJUSTING OF THE
OILING TO THE HOOK PART
When it is necessary to change the
oiling amount to the hook according
to the materials to be sewing,
ment
is
done by the oiling amount
adjusting screw located
ide of the oil reservoir.
o Loosen the nut.
o Turn to the right (+side) for more
oil.
o Turn to the left
il.
IN
USE
L
'lr
at
(-side)
oil
as
illust-
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'o
adjust-
the left
for less
h-
m-
th-
op-
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6~
7
I
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Needle cramp
Right
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4.
HOWTO
THE
4-1
SETTING THE NEEDLE
Turn the needle so that the groove
of needle faces the right side and
insert the needle
as
far as it will go and then tighten
it firmly by the needle clamp screw .
NOTE) Standard needle to use
this machine is type
but in case to use
needle please refer to chap-
ter.
SET
MACHINE
up
into needle
(4-10).
DB
DP x
bar
in
x 1
17
-3-
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