Brother LK3-B220, LK3-B221 User Manual
INSTRUCTION
FOR
MANUAL
BROTHER
LK3-B220,
221
High Speed Bar Tack Machine
BROTHER
NAGOYA,
INDUSTRIES,
JAPAN.
LTD.
CONTENTS
1. FEATURES .............................
2.
SPECIFICATIONS ....................
3. OPERATION ............................................
1.
Name
of
major
component ............ .................. ...........................................
2.
Selling up . . . . ...... ...
3.
Oiling ............................................. ....................................... .. ........................................... 7
4.
Safety
5.
Needle
6.
Winding bobbin ............
7.
Threading
8.
Upper
9.
Thread
10.
Adjusting
11.
Adjusting
12.
Adjusting pressure of
13.
Cleaning shuttle .................................................................................................................
operation
and
thread
bobbin case
threading
tension ............... .......................................... ........................................... ...............
tack
tack
..
. . . .
......................................................................................... ....................... 7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
.................................................................................................................
width
length ........................................................................................................ 12
...
...............................
...
..........................................................................................
..
.......
..
. . . . . . .....
..
.. . . . . .
..
...... .............. ..... ...... ....... ...... ......... ........ ... ... . . .......
....................................... ................................................................ 9
··········
·
·····
··
·················
work
clamp ..................................................................... ................ 12
............................................................ .
...
...............................
..
. ...
..
. . . . ..... ... . . .
·
····
·
····
~
~
....
........................................ 3
..
... ................. 3
..
. . . . ....
..
. . . . . . . . . . .
···
..:.:
························
..
..
..
... . . .
··
····
..
. . . .............
··
·····
..
... 11
..
... . .. . .... 9
10
11
·
··············
12
12
14
. Removing needle plate ......... .......................................... ....................................................
15.
Installing needle plate .......................................... ........................ ......................................
16
. Replacing needle hole
4.
ADJUSTMENT
11.
Adjusting needle
2.
Adjusting feed mechanism .......... ................................. .. .....................
3.
Adjusting
4.
Adjusting
5.
Adjusting clutch and
6.
Adjusting
7.
Adjusting
8.
Needle cooler mechanism (Opti
5.
PARTS
LIST
...................................................................................................................... 13
thread
thread
wor
k clamp lifter ............................................... .............
work
for
plate
.......................... .....................................................................
bar .............. ............................................................................................ 13
....
........................... 14
trimming mechanism ................................................... ............................
nipper ......................... ...
brak
e ......................... .......................................................................
clamp on B221·1 and -2
on)
.....................................................................................
LKJ-8220
...............................................................................................
....
.............. .........
............................................................................
........................ ...... ................ IS
.... .............. .............. ..
12
12
1:3
16
19
21
22
23
24
LK3-B220, 8221
The
~e mac hine~
are high
~
p ee
d
bar la cking machines capable to sew at
High
Speed
Bar
Tacking Machine
ma~imum hi~!h ~p
eed
of
2.
000
~!itches
per minut
knilled
loops on
e.
The model
unden\ear~
,l.(e
nl \ <llld ladies
Ll\
:~
ll220 b
.
and the model LI\::.J-:
pant
~uitable
~.
and jean: and Iabeii in.!.(
to do tacki ng jobs on overco
22
1
i~
suitable to do
tackin
on \ arious clothe
ats
. gent' s pants. jeans.
g
job~
on eye let buttonhole ends,
s.
m·e ra
l l
FEATURES
1.
This
is designed with cylindri cal bed, link motion
2.
On
thread
trimming
replacement of the
3.
All
the mechanisms
thus it is ensured the less noise and less vibration. Especially, the clutch mechanism is designed with speed
reduction method with
feature brings the noiseless ope
Also,
perfect
trimming mechanism,
perf
ormances and
thread
are
on the needle
stitch
formations.
BROTHER'
thread
trimming
designed to be
two
belts, and it ensures smooth
bar
mechanism, it adopted with needl e
tails are unified with this
knives
ration
are
durable
and prevent the
thread
s own unique idea is adopted to be ensured perfect
very easy .
even
take-up. and
at
max
imum high speed of
operation
thr
ead-off out of the needle.
bar
clamp
shuttle
thread
when the machine
to ensun• noiseless operaticni
hook.
trimming mechanism. Also,
2,000
stitches per minute,
starts
and stops.
~
and
belt
thread
the
Thi
and
s
4.
All
the mechanisms
jamming
5. It ensures
6. One of the
own designed hook timing adjustin g mechanism,
which is eliminated to adjust the space between
needle and hook point with wa
the
only by adjusting ring
7.
The
setting
endless belts.
8. Bed
sures no oil-leakage.
and oil stain.
wide
greatest
thickness
belts
are
and dismantling
base
plays role of oil reservoir, thu s it en·
are
covered entirely
space
underne
advantage
of needle.
to
vertically put, then it enables easy
ath
the work
is
BROTHER's
sher
dependent on
This
adjustment is made
get
proper
and
it
can
be
cle
used
aranc
and
it is so-called
clamp
e.
with
totally
with uniqu e designed
enclosed type, thus it prev ents
work
cla
mp
lifting mechanism.
thread
- 1 -
-
SPECI
MODEL LK3-B220 LK3-B220 LK3-B22 0
Sub-class
Application
;\
o.
of
stitch
Tack
length
Tack
\\'idth
:\Iaximu111
:1\eedle
Height of \\'o
;\e
Sub-class
Application
;\o.
Tack
Ta
1\I
l\
Height of wo
~eedle
edle
of
ck wi
axim
eed
bar
movem
MODEL
stitch
length
um
bar str
movement
Fl
CATIONS
sewing speed I
str
oke
rk
clamp
ent
dth
sewing speed
oke
rk
clamp
I
I
I
I
I
I
I
II
-1
Overcoats.
Overalls, ladies'
Jeans,
etc.
42
6-
16
111m
1-
3ml11
2.000 spm
-!1.2
mm
lOmm
gent's
pants
:3.5-10111m
1-
I
2,000
41.2
10mm
I
LK3-B221
I
-1
LK3-B221
I
I
I Eyelet button-! Eyel
hole end hole end
II
I
28
3-
7mm
1-
3mm
2.
000
41.2 ml11
lOmm
spm
I
I
I
I
I
I
3-
1- 3
2.000
-!1.2
-2
and
28 28
3mm
spm
mm
-2
et
button-
21
7mm
mm
spm
mm
lOmm
Knitted
Underwears
3.51-
2,000
41.2111111
LK3-B221
Belt loop Labelling
5-
0-
2,00
-3
8111111
3111111
spm
10mm
-3
21
12
1.5111111
0spm
41.2
mm
lOmm
mm
LK3-B220
I
gent's
ladi
pan
31-
I
2,000
-!1.2
10mm
LK3 -
20-50mm
Omm
2.
000spl11
41.2
10111111
--l
es
ts
21
7111111
3mm
spm
mm
B221
--l
-!2
111111
LK3-B220
-5
Knitted
Unde
rwears
21
3-
7mm
1 -
3mm
2,0
00
spm
41.2
mm
lO
mm
LK3-B221
-5
Labelling
32
14-35mm
Omm
2,
000spm
4L2mm
lOmm
LK3-B220
-6
Denim
Corduroy
Jeans
7.5-
LK3 -B
18-45
or
42
20
mm
1-
3mm
1,900
spm
4L
2mm
lO
mm
22
-6
Labelling Labelli
28
mm
Omm
2,
000sp
4L2mm
lOmm
1
m
LK3-B220
Denim
Co
rduroy
Jeans
6-
l -
1,900
4L2mm
10mm
LK
16-40111111
Omm
,000
2
4
1.2111111
10m111
-7
or
28
16111111
3mm
spm
3-B22
1
-7
ng
21
sp111
LK3-B220 LK3-B220
-8 -9
Overcoats,
Overalls, Overalls,
Jeans, etc.
42
7.5-20
7.5-20mm
mm
1-
3mm
2,000
spm
41.2
mm
lOmm
LK3-B221
-8
Belt loop
28
0-1.5mm
2,000spm
41.2111111
lOmm
Overcoats,
Jeans,
28
6-16111m
1-3ml11
2,000spm
41.2
10mm
I
etc.
mm
N
OPERATION
1.
Name
(A) Model
lever----ffff1~~====~~==~~==~~==~.(
plate
Nipper
tension
of
major
LK3-B220
Sub tension
assembly
components
Arm
cover
Belt
cover
Cam
cover
F
UDTHER3
Needle
bar
(B) Model
Presser
arm
I
Tack
regulator
LK3-B221-1
width
Emergency
motion
&
lever
-2
stop
Bed base
Bed
(C)
Work
Model
clamp
lifter
LK3-B221-3
&
-8
(D) Model
LK3-B221-4--7
-3-
2.
Setting
up
the
machine
* Location and measurement
for
LK3-B220
*Putting
the
&
chains
Work
LK3-B221
l
clamp
lifter
of
l
Adjust
J'
oh•;"
table
length
top
* Location and measurement
for
LK3-B221-3
----------1200----------..j
Adjust
of
chain
length
&
-8
of
table
top
A Holo for
ng
ht troodle
U H
ofo
for
lo
ft
troodle
C Holo
lor
mounung
D Halo for machine
bod boso bolt
t:
Holo for
ho
nd rest
motor
bolt
*Putting
o
left
Trea~Je_
r-.~'""'-
'.§Clutch
, lever Clutch actuating
"'
.__,.
· ·
actuatmg
rod
(Clutch
actuatin
belts
Belt for h1gh
speed operat1o
(longe
r belt)
Right
Left
treadle
g rod is included in accessories.)
n
treadle
wmder
- ·l -
* Length
In
of
belts
·asc th at you may usc
\\'
ith non-
BROTHER
mad
e tabl e
and
stand, th e
standard
length of
the
belts arc
as follow
In
case
temporarily
cut
the
(NOTE)
speed
and
*MOTOR
Singl e
Three
*Joining
s:
50 liz
-c
that
you may use with non-
sett
ing between mo
belts
being 30- 40 mm s
Be careful to
tight
phase
phase
belts
get
tension, it
250W
250W
4 pole
4 pole
Longer belt
Short
er be
lt
BROTHER
tor
pull
hort
er
prop
er tension
caus
es
too heavy
*MOTOR
1,119mm
1,007
llllll
made
ey
and idle pulley, on condition
and
put
the both ends together
of
the belts. In case
torqu
60H
z
-c
table and ·stand, please
e.
PULLEY
1,900 spm
120
102mm
50
Hz
60Hz
2,000 spm
130mm
llOmm
Longer
Sho
of loose
trim
rter
that
as
descr
tension
1,700 s
108mm
92mm
belt
belt
determine
the
1,080
992mm
the
belt
is
not
ibed hereunder.
, it
cannot
pm
1,500
96mm
82mm
mm
length of
stretched, and
run
at
spm
1,300
84mm
72mm
belt
prop
spm
s
er
~~§:
/Heated~
Belt Belt
The
belts
cause
any
anxiety
Please
(1) Cut
(2)
(3)
(4)
of
take
the
and
machine
Melt
Put
together
without
Remove
contained
slippage on
breakage
the
following
belts 30 -
the
both
both ends on base
remov
the
surplu
head
ends
ing
with
this
machine's
on
the
40
mm
.
of
the
contact
s with s
machine head
running,
joining points
steps
to
adhere
shorter
the
belts w
using
harp
than
for
knif
Sharp
knife
~
t=-=-I;
and
during
the
the
ith
heat
belt
base
e as per
- -
6--
Remove
are
made
of
polyule
with
the heat
the
operation:
belts.
length
joining then pressing each end
for
that
it sets te
such
as lighter flame, heated
belt
joining cont ained in accessories.
illustration
.
Base
thane
rubb
adhesion it
mpor
arily between the pulleys
for
belt
er
of
Smm¢,
ensur
es
durability
iron
plate and the like.
and leav
e it
joining
which does
without
about 3 minut
of
not
any
motor
es
- 5 -
*Setting
spool stand
*Checking
speed reduction
Photo 1
o
Without
belt guide is positioned at slow speed
pulley as per
o
With
is disengaged out of s
positioned
Photo
o
At
tr
ipping
le
ver
as
running the motor, when clutch
Photo
1.
turn
ing the pulle
at
2.
a few sti
cam
is positioned
per
Photo
slow speed pulley and
tch
es before the machine stops, when
lever is
1.
y,
when clutch tripp
top cam, the belt g
at the stop cam, the
at
slow speed pulley a
is raised, the
pulley
ing
uide
idlt>
pulley
belt
nd
idle pulley
and
cam
lever is
as
clutch
guide
idle
lever
per
o
At
the stop position, the belt guide leve r is positioned
at
Photo 2
Photo 3
idle pulley and bobbin winder pulley as per
6
Photo
3.
3.
Oiling
Supply one or two drops of quality sewing machine oil inlo oil holes with
the machin
e.
10drops
1
10
drops
!14
5
drop
I
s
(L-
I
'
I
' I
arrow
indicated before using
4.
Safety
Ri
Left
operation
ght
treadle
treadl
e
o When the switch is "ON",
s
tarts
to run and the idl pulley
s
tart
s to run.
l Release the right tr a
ma
the
(Machine
r;
When the left treadle is d
pressed, it works the th
trimming and thread nipper
mechanisms
chine is in op
st
ops automatically)
and li
era
fts work clamp.
motor
dl
e when
tion.
rea
e-
d
- 7 -
To
stop the machine during the opera -
tion. depress the emergency stop lever
o Even
it
depressed
the left treadle
while the machine
tion. \\'ork clamp
stays
is
accidentally
is
clown
.
in
opera·
before completing
o When the work
machine will not
is
treadle
accidentally depressed.
sewing cycle.
position)
clamp
is raised up, the
start
even if the right
5.
Needle
*Selection
Needle
*Installing
#
#11
#
14
#
16
#
18
#
19
#21
9
and
size
thread
of
needle and thread
Thread
#
#
#
#
# 40-
# 30-
#
the
Loosen
up
needle bar,
groove
and fasten needle
with
size Application
100-#80
80-
#60
60-
#50
50-
#40
#30
#20
:W
- # 8
needle
this screw
needle all
into
the
II
need4e
facing
screw.
with
Insert
Tricot,
fine knitted under
II II
wear
Men's and Ladies' wears
Work clothes. overalls, overcoats
II
II
Thick
overcoats,
.,...;w~......:~
the
way
hole
in
the
its
toward
long _ ___,.,,,
you
tightiY--t
II II
II II
Jean
s
J--->...\.,
,........-J
Left-twisted
thread
~
The
twist
is
in case
• Use a left-twisted
upper thread.
strengthened
of
left-wisted
thread.
thr
ead for
*List
of
needle
LK3-B220-1
LK3-B220-2
LK3-B220-3
LK3-B220-4
LK3-B220-5
LK3-B220-6
LK3-B220-7
LK3 -B220-8
LK3 -B220-9
to
recommended
be
LQ x s
LQ x s
LQ x s
LQ x s
LQ x s
DPX17
DP
17
LQ x 5
LQ x 5
#
16
#
16
#11
#
16
#11
;!:!:
21
#21
#
16
#
16
LK3-
B221
-l DB X 1
LK3-
B221
LK3-
B221
LK3-
B221
LK3-B221
LK3-B221-6
LK3-B221-7
LK3-B221-8 LQ x 5
-2
<3
·4
-5
DBx 1
LQ x s
DBx 1
DB x 1
DB x l
DB x 1
#1
#
14
#
16
#11
#11
#11
#11
#
4
16
Winding
6.
1)
2)
3)
*The
bobbin
Put bobbin onto bobbin winder spindle.
Wind a few turns of thread on bobbin.
Press bobbin presser as for as it goes.
(
If
(Thread correctely wound on bobbin. }
position of tension discs can be adjusted by positioning up
thread
Raise the position of
tension discs.
is
unevenly wound on bobbin ....... )
~l:e
Lower the position of
tension
or
down the tension colla
discs.
r.
7. Threading
1.
Put
bobbin in bobb
case. through slot and
the
bobbin case
in
.....
Tension
spring-~"'--10:
~
-
!'
ass the thread
under the tensi
spring
Slot
on
- 9 -
3. Pull the th
rea
d out 4. Lead the thread
of delivery eye under through ho
the tension spring.
sition finger and
leave about :km
of the thread out.
le
in po·
8.
Upper
threading
S.
II
old
shuttle,
latch.
and
ins
ert
release
bobbin
latch
case
when
onto
bobbin
pin
case
at
the
properly
centre
placed
of
.
Le
ave
about
thread
-
10
hanging
-
4 em of
on.
the
Loading...