11. General maintenance and inspection works have to be done
12. Repair and maintenance works
13.
read this Instruction Manual carefully before use. We hope you will enjoy the use
Observe the basic safety measures, including, but not limited to the following ones, whenever you use the
machine.
Read all the instructions, including, but not limited to this Instruction Manual before you use the
machine,
Use the machine after it has been ascertained that it conforms with safety rules/standards valid
country.
All safety devices must be
without the specified safety devices is not
This machine shall be operated by appropriately-trained operators.
For your personal protection, we recommend that you wear safety glasses.
For the following, turn off the power switch of disconnect the power plug of the machine from the receptacie.
7.1
7.2 For
7.3 For repair work.
7.4 When
If you should allow oil, grease, etc. used with the machine and devices to come
or skin or
medical doctor.
Tampering with the live parts and devices. regardless
0.
Repair, remodeling and adjustment works must only
specially skilled personnel.
technicians or under the audit and guidance of specially skilled personnel.
Whenever you find a failure
Periodically clean the machine throughout the period of use.
In
For threading needle (s) and replacing bobbin.
replacing part (s) of needle, presser foot, throat plate, feed dog, cloth gude etc.
swallow any of such liquid
of
the many functions
addition, keep this instruction Manual so that you may read it at anytime when necessary.
in
position when the machine is redady for work or
leaving the working place
of
any of electrical components, immediately stop the machine.
of
this machine and operate it
in
a safe place.
allowed.
of
when the working place
by
mistake, immediately wash the contacted areas and consult a
of
be
of
electrical components shall be conducted
is
whether the machine
done
by
by
in
safety, it is necessary to use this
in
operation. The operation
unattended.
in
contact with your eyes
is
powered, is prohibited.
appropriately trained technicians or
appropriately trained personel.
by
qualified electric
of
your machine
in
your
is
14. Grounding the machine
in
to be operated
15.
An
appropriate power plug has to be attached to the machine
be connected to a grounded
16. The machine
17. Remodel or modify the machine
safety measures. We assumes
machine.
18. Warning hints are marked with the two shown
an envivronment that
is
only allowed to be used for the purpese intended. Other used are not allowed.
A Danger
always necessary fot the normal operation of the machine. The machine has
is
free from strong noise sources such as high-frequency welder.
by
electric technicians, Power plug has to
receptacle.
in
accordance with the safety rules/standards while taking
no
responsibility for damage caused
of
injury to operator
symbols.
or
service staft
by
remodeling or modification
& Items requiring special attention
-11-
all
the effective
of
the
Page 4
Lt
1.~-~~~.
I.~m~A~m~.~~~•~.~~~~~~~~~.M~¥*~m~o
2.
~~~~•~m•~~~~~A~m~.~m.~•~an~~-~~-~
-~~mo~~~*·~~-~·~~m~m~¥~~ffW~£o
M~¥n*~m~~-~.~~¥~•~•~•m~o
&
3.~m~A~m~.
4.
~-~A~m~.m•~~~.w~•~~AM~~~o
5.
~#JWJ:il~~~'
~~n*~•**~•~m~~.w~-~~~m#~no
m•~t~~~~tt!I#:i!io
§19~,
~~tt~'
•*~*JL~~
il**o
6.
~~~~-~A~m~.
7.~~~~-~m•~~~~~m~~~-~.m~m~~~~~-~~~•
~,
iw*t-'i!m~AJ.J~ilo
s.~*~~m~~m~n~m.ma*~~~.
~~~m~~~•~·•*wma~~•**o
9.~-~~~.
10.
~~~fi~·~~~~~~~£J.ftt~t9L
~~~il~~~.
~-~~m*m~~.
~m~•fio~•~m~~~
M~llm~~~o
~tm~~tt~tm~~!W.
~•~m~Ama~•o
tn*~~•
**0
-111-
Page 5
FOR SAFE OPERATION
1.
To
avoid electrical shock hazards, neither open the cover
of
the electrical box for the
Lt
&
motor nor touch the components mounted inside the
1.
To
avoid personal injury, never operate the machine with any of the belt cover, finger
of
guard
2.
To
your fingers, head and clothes away from the handwheel, V belt and the motor while
the machine
3.
To
the power switch or operate the machine.
4.
To
the machine
5.
The looper rotates at a high speed while the machine
ible injury to hands, be sure to keep your hands away from the vicinity of the looper
during operation.ln addition, be sure to turn OFF the power to the machine when
replacing the looper.
6.
To
chine when tiling/raising the machine head.
7.
To
power to the machine when
the V
8.
If your machine
while the machine is at rest.
machine,
9.
To
wire for the power
10.
To
nent(s), turn
power
safety daevices removed.
prevent possible personal injuries caused by being caught
is
operation.
avoid personal injury, never put your hand under the needle when you turn "ON"
avoid personal injury, never put your fingers into the thread take-up cover while
is
in
operation.
avoid possible personal injuries, be careful not to allow your fingers in the ma-
avoid possible accidents because
belt.
is
be
sure to turn OFF the power to the machine.
avoid electrical shock hazards, never operate the sewing machine with the ground
prevent possible accidents because of electric shock or damaged electrial compo-
OFF the power switch in prior to the connectrion/disconnecti
plug.
In
addition, place nothing around them.
of
abrupt start
tilting the machine head or removing the belt cover and
equipped with a servo-motor, the motor does not produce noise
To
avoid possible accidents due to abrupt start of the
• Before you put the machine into operation for the first time after the set-up, clean it thoroughly. Remove all dust
gathering during transportation and oil it well.
• Confirm that the voltage has been correctly set. Confirm that the power plug has been properly connected to the
power supply.
• Never use the machine in the sate where the voltage type
• Confirm that the direction
• Operate your machine at the normal sewing speed
I Before operation
~*~•Mm~~~$~~.#~~~~~Mo
tm~~~il:ii~~NIEUJJJo
mm~m*mo
of
the machine, confirm the following:
is
irrerent from the designated one.
of
rotation
of
the motor pulley is correct.
or
less for the first month after the set-up.
3f$nutr.Jtt~$JJ{
I,
~f.ti*J*:JJD~~~fm7f$o
2,
fJL·~~M.
3,
~lll*JJ~ffl~~
4.~~~~m~~J:~~tt:.
I. The machine shall not be started running until the completion
2.
The rotating direction
(View from the right side
while balance wheel turning clockwise.
3.
The machine shall be under operation at less than
4. Check power source, voltage, and phase number to see whether they are in accordance with the ratings on the name
plate
of
=
..
f:fJftit~$JJ{
1,
tJL•~ffiB>t,
2.m.~f!iM,
3.m•UJJJ~~tt$,
4.**~~m**$,
MJ:~:9r1MIJti~~~~~B>ttt17~,
-~ ~
of
the motor to be used.
i~m:trf-=¥1itl!JJtt~r$o
mm:trt-=f.ffi~AM~ff~~l*.lo
~~f.t~l:~o
~rmttJ:~•~.
I Pre-start Checks
tt:~.
~fm~J~o
1=J:t,
m:ti~Ai:il~fl£194!¥~ftft4000ftutfi~m1'F!&o
~-~•.
the balance wheel, when the machine is started running, shall be in counter-clockwise one.
of
the balance wheel.) A warning shall be given in advance against making the machine run
~Bi&•m.~m~NIEUJJJo
of
oiling.
4,000
S.P.M. for the first month.
I Operating instructions
~~mm~~-~~-matoo.m~~tt:~.
*~tt~~~~•
m•fl]ifiJo
5,
m•~f!ia-t.
E f(]
j)#
6,
•m&:m~&~m•a.t.mm7f~m•o
1.
Do not put your hands under the lower part
2.
Do not put your fingers into the thread take-up lever cover when the machine is running.
3.
Only when the machine stops can you turn the balance wheel by hand.
4. After the motor switch being turned off, due to inertia, the motor will continue to rotate for a while. Be careful not to
have the machine tilted unless
5.
Keep away from the balance wheel, V-belt, winder and the motor.
adjust needle thread tension
condition,we can adjust needle thread tension
the tension nut
counter-clockwise to decrease the tension.
To adjust bobbin thread tension:
Turn tension screw clockwise to increase the tension;turn tension
screw counterc lockwise to Tension; tum tension screw counterclockwise
to decrease the tension.
The relation between the needle thread and the bobbin thread as
in
shown
0010
Fig.lO
(OOIOJi)f~)
clocwise
(Fig.l 0) depicts the forming
~~~~~~~~*n~*o
~~~~~~~~*n~*o
19tilt~~~*10Co
is
accordance what sewing working
by
tension spring.Tum
to increase to increase the tension; turn
of
chain stitch.
f{ij~
Needle thread
}ij;~
Bobbin thread
+
..
ffiJJ141(0011
0011
Fig.
II
0012
Fig.l2
..
0012) I Presser foot (Fig.11
*~·
~ffit~tJ~;J>ifliWJil1927-30mm
~
ep
pressure; turn pressure-regulating thumb screw counter-clockwise
to decrease the pressure.For general fabric the standard height
pressure regulating thumb screw is about 27-30mm (5kg)
in
position.
..
Fig.12)
ffi}l!pffin~~~
&~~ffin~-0~
¥Rffilml~~~m~ffiW,
l=iT
( m
12)
Adjustment
Turn pressure regulating thumb screw clockwise to increase the
The presser bar lifter shall be turned either leftward or rightward
order
to
of
keep
(0011)
0
pressure on presser foot (Fig.
the
presser
:
J®i~~~ffilm!~ffit~n.
H~Mffi~.
(5*
JT)
R¥reffilm!fi~~tr.~~~~
foot
under
the
ffilm!
tr.~
o
II)
condition
of
ffin
of
lifting
-5-
Page 13
-t~ ~
0013
Fig.13
~Jei}{JiJJil(0013)
I
To
adjust stitch length (Fig.13)
I,
H~¥:1ll¥-JiJWi'i(0013)7t~ME~jtl:G*41&-f-
n:tm~m••*~~on:Eml:•ll~ft*fflmm~~o
2,
H~M*¥'J'J,t&3t::GM~Jllll1,
ffi;
3,
H~¥:J!tii::k1!4mm,
4,
t!(rffi'l:ili*41&-f-,
~
5,
*;fJL~~;i!fjff;tl~o
1.
Turn feed regulating adial to the figure desired. The value
duation
2.
If
feed lever while turning the feed regulating dial.
3.
Max.,stitch length is 4mm:Min.stitch length
4. When reverse feed lever is pressed down, tight-needle stitch
1.4mm will be formed;this version
ginning and end seaming or partaking.
5.
The machine can not make reverse stitching.
l:ool¥-JHH~iJWi'i
m-:iti¥.J-fitJ:G*41&-f-!Mr
-:iti~l;tJ:iliMH~MEffio
iitJ'J!
1.4mm.
H~~79~m~(l.4mm),
~
fn
~
11:~
!!X
w
no
si
~
~JJ
t¥J
t:'f~
7t
0
is
shown in millmetren(mm)
you intend to change the stitch length, press down the reverse
of
stitch is suitable for be-
i~J}J~~m=r
of
is
1.4mm.
gra-
of
+=~
l¥114
Fig.l4
f]L~I}{J=t:~(0014~
l
CD®®
0®0
0015) I Setting-up
Feed direction
1:E~ffl1t~f~B>t,
[fi)~~o
;fJLftil!f~TVx71¥J#9-#21
(00
15)JiJT~%:t\:1Nini
When thread
eye shall not be in that one, as shown in part C
types to be desired fall within the range
tank shall be custom-made when thread
silicone oil can be placed like that, as indicated in Fig.15.
of
the needle
of
chemical fibre
(Fig.14~
;fJLftft=FLI¥-JtirfiJ~~~D(OO
ru!;f]Lft
i
nb,
nbii/ili~!l~li::iliU
is
Fig.lS)
o
ffl
1t~f~~iliUII1,
o
used, the direction
of
of
#9
to
#21
of
chemical fibre
14)~Cl¥-Jti
~t!(
of
the needle
Fig.14. Needle
of
TVx7; Oil
is
used;
Fig.15
-6-
Page 14
-t
~
1IJJ!Pil6JtB9iJl3i'i(0016) I Adjustment
of
the height
of
the presser bar: (Fig.16)
@i)
rPresser
0016
Fig.l6
+1m~
Fig.l7 A type B type
:i!tl~ff.Jifnj~(0017
~~
0017
~
~m~~
bar
guide set screw
o I
~
0018)
..
·:.-
~
BlW
t
I
Adjustment
~7~~ffi~~~~~~-
1,
fJfrffiH&l:I¥-HL~
2,~~ffiff~~~~~~n*fi~~o
3,
~~!§~~~~~~no
For the requirements
changing the height and angle
be observed.
1.
Take off the rubber plug
in Fig.16.
2.
Loosen the presser bar guide bracket set screw.
3.
After adjusting, retighten the screw.
of
the
height
~r~(
oo
1s)
?Jf
~
~~n
A~,
B~,
-H--
Ilo
Loosen the set screw Q), as shown in Fig.18, the angle
feed dog can be adjusted to the specified one
A version, and B version. The Max. height
ction from dog
in
Fig.17
J2ifl7fii::k~ili
is
adjustable by the adjusting
~~~~:
(0016)
of
either replacing the presser foot or
of
presser foot, the following shall
in
the hole from the face plate,as shown
of
the
feed
dog
(Fig.17..
Q)
, **4
7f
~
ftji
~en
t:iT
:!I
~0.8mm,m(0017)~~~nCD~
of
standard version,
of
0.8mm
of
screw
ifnl
Fig.18)
11
nX:t-r.
of
the proje-
CD
as shown
at~,
of
the
-tii~
0019
Fig.l9
i2itf7f
~*OOIPJ~(0019)
I The timing
tf~rl*~ftt&l:~ffi3mma-t,
t&J:~ffi[;Jr,
When the point
3mm from the upper surface
at the position below the upper surface
running
of
needle.
of
feed dog and needle (Fig.19)
!lta-t,
lE!fflllJtv
of
needle lowering down to the location
of
the throat plate, the feed dog
of
feed dog being well regulated in relation to the motion
-7-
*fl3f~1Jfff~tmrl*~ft
0
t:iT~Ti(OO
of
I9)~~~~n
the throat plate, viz. The
is
0
of
right
Page 15
+
/'\
..
ftfffi6ltB9iJJTi(l!l20)
I Adjustment
of
the height
of
needle bar (Fig.20)
0020
Fig.20
+-1::
..
8
l
0021
Fig.21
0022
Fig.22
ftJtiTVX7;t;JL*Bof,
ttff
J:~Jt&Mx.tilttffrM~I¥1r~oo(~noo2orJT7F),
{jt~
T*ffff.J~}jto
When the needle
is
needle bar
be
in
indicated
lJLltf;JJ~ltl'f.JifnJi1(0021..
0022)
I
Adjudtment
at the bottom dead centre,the mark
line with the lower end
in
Fig20.
of
~ *
ffrJ
J§
~
l;IJ:fll¥1
~~llrllllJi}'fiffiJi'iPJ1~~*Wffml~l;IJt:f:t(0021
im1tBI¥JR>t:f±Mi*.B1793.
1.
tfir~ttDtlm'lJ~J:I¥11t~*(0022)
2.
Jtl=f~z.;J)J:$&:0
3.
~~~~~~n~~~~n.OOi'i~~%1¥J~Uo
4.
tt
needle
ffiiffili'i~UJ:I¥1~~~~~~~~.
OCZ~Ij'\0
s.
~~~~~'-Ufo~~~'-n
Adjustment
The dimension
measured,( refer to Fig21
3.7mm, suitable for sewing operation
The adjusting procedure
1)
Take off the rubber plug on the crank case
Fig22)
2) Turn the balance wheel by hand.
3) First loosen set screw and positioning screw, and then adjust
marked screw.
4) Turn clockwise the adjustable screw on which punch mark
printed, and the dimension
5) Tighten set screw and positioning screw.
of
of
PJffl*ff
of
TVX7 is used,
the
needle
00
i'i :
forward & backward motion
part B
of
).
The max. dimension
J:ff.J~Ijt&,
of
the needle bar bushing, lower, as
and
7mm,
0
the looper in an elliptic motion can be
is
as follows:
of
part B will be increased in value.
*ff:f±r~-~Bof,
j!f'fJM:
if
the graduation on the
of
graduation shall
looper
~;fttlm!~ff.J;t;JL*:mttE:~~lJJo
of
(Fig.21,.
~Bff.JR-.J-8~~*·
of
needles
of
of
the looper (refer to
Fig.22)
)fi]f7FI¥JBR
of
the looper:
part B
is
usually
all kinds
of
is
>t,
sizes.
-8-
Page 16
+
!\..,.
0023
Fig.23
~ft*H~f)Lft(J9~~(0023)
I The timing
fi
1"1
while the needle is at the bottom dead centre; loosen the screw on
the gear and make timing adjustment
needle (refer to Fig 23.)
of
mtta•~~at.~ttm~am.•~oo~m~~¥-J•nm
tviffil~(-tln
The looper shall be moved backward to the lowest position
looper in reference to needle (Fig.23)
0023)0
of
the looper in relation to the
+11,.
1,
2,
3,
needle is 2mm, then the graduation mark on the lower part
needle bar bushing, lower.(refer to Fig.24)
Fig.24
~ftB9-t.Jn:E:C0024)
~tti¥-Jtt~~~J:ititrttti¥-J!=f•l)fll:JiB>t,
r~t~rliffiloox.J1f
~tti¥-JJ§miH'.J3.5mmo
fJLtt:fL~o~tt:fLI¥-JfBX>f*
1)
The standard value
2) The value
3) The relation between the eye
(Note that the left Ioper and the right one can be sepatately adjusted.)
0024
0
ctmrB24)
of
the vertical distance
of
the stroke moved backward by the looper is about 3.5mm.
2mm
I Thread-guiding amount
~tttt~~*JLtf":fLJ:ltffiii¥-J~E~tT-<lfi:J!:2mm,
~
-tln(rB24)PJf~
of
the needle and the eye
o
(li:1i~tt
of
the point
~]
,_[
of
the looper (Fig.24)
PI
LV,
Jt~ljiffil~)
of
the looper away from the upper end
of
the needle bar shall be in line with the lower end
of
the looper is indicated Fig.24.
!ltB>tttffr~IJ~~ottff
of
the eye
of
the
of
the
=
+,.
~ftf;n;f;)Lftfii)(J9(ii]~t
**•~~m.mtt~~ttoo@m~-~oog,
t/J\
7.
mtt~¥-Jimtloo
After adjusting the needle guard, the clearance
unchanged; the needle shall not touch at the point
that usuaL the side
against the looper point.
Ei~tttt~~~~*B!LTitttirmtJJlf%
of
the needle and the point
I The clearance
~m~m~ffimtt.mtt~~@m~~**~o~*oog
of
a given value between the needle and the looper shall be kept
of
the looper when it
of
the looper are apt to incur breakage due to the impact
of
looper and needle
0
is
pressed down softly.
-9-
If
the clearance
is
narrower
of
the needle side
Page 17
f*ft~B'.])PJ~(0025)
I The timing of needle guard (Fig.25)
0025
Fig.25
~ + ~
0026
Fig.26
OOffiJ~JEo
the plane on the rock shaft
screwed into this rock shaft.
..
f*ft~B'.JffliH0026)
I Position of needle guard (Fig.26)
&f*#.,
9=t
t;
ff.Jral~~:Y!JO.l-0.
Oscillating the needle guard to make the needle tip contact with
needle gauge slightly.
within the area
be made by loosening screw
counter needle guard and the counter needle guard is as represented
in Fig
to 0.2mm.
Note that the forced clamp
when the machine
'f*tt!#iff.J!m~.
The timing
m~'f*tt•m•.
:ttiWJJi:lili00~¥1J~iD!fl&~IE1*#.mffil,
tJ
CD
CD
E!P
ll!!IIE'i*tt•fllMZ;/J'f*#•zralff.J*
It
is recommended that the height adjustment shall not fall
26;
the clearance from the needle falls within the range
E8
(0025)
of
the needle guard depends on the condition
~~H~Roo~~ftmttff.J#~ftftM
llJ
:i£
fi
0011
2mm,
~m;t-JLm~~~tre~!llfi~ttmH
of
the left counter needle guard. The adjustment can
is
in
motion.
9=t~-t;trmtA.~#*WJ:ff.J-!f
of
the looper when
o
CD
and Q). The relation between left
of
the needle
no.l
screw has been
Mft~(0026)
~Ctm0026)rJT~,
sha11
be prohibited
of
.!§l;t-JLH
0
of
0.1
~
+~
..
JitE~fr~8~(0027)
0027
Fig.27
I Looper thread take-up
m;~n~8~ff.Jmiltm
tr~8~-!fiil'iiiHtfllWJ~-!ffifi~Jti¥-J~~:Y!7
trB:i!fiiJJ~,
-~~-~-~~-~=Jij;~Mtr~8~1¥-J~~A~lli~,
H~~%1tt:il!:A.m;~~#I¥-J~*9=t
Its position can be seen as shown
is at the top dead centre, the planes
in parallelism; the projecting part
angle
of
adjustment, finally tighten the screw fitmly. Pay close attmtion
following; the needle tip shall entirely come into the thread loop
of
the looper when the bobbin thread rejecting from the projecting
part
of
the cam.
m•~~Eml'fmt~
18 to 20 degrees. first loosen screw B,
cam
(Fig.27)
(0027)
-10-
rJT~,
ttff1:Eltl.WJ.~~,
18°-20°,
0
o
in
Fig.27 when the needle bar
of
the cam and the steel wire are
of
the cam can slightly rise at the
Mft~t;
and
then make
to
the
Page 18
~+nn ~ :hll-~-ll:~
~.
1?c:;:x.n
-
l:~PEEJ--f+"-H;;.V..{\OO.(Im
:;:x.~JJPJll1~1l~
!LJ3
)
I The position
28
..
rn
of
the thread take-up lever (Fig.28)
of
the
thread-am~unt
adjusting plate
0028
Fig.28
=+n,
~~iij~~~(m29)
I Frame thread eyelet (Fig.29)
#fftE:I&flf:.~at,
ttm~.~n~•m~at.
Jltj~,
#ff1£RH!f:~B1,
1£RJff~$~RWB1,
The thread-amount adjusting plate will retain the bobbin at
thread when the needle bar
the loop
thread
the tight pulling
sting plate usually reduces to the lowest point when a thread finer
than normal
ad-amount adjusting plate.
W1'F~¥fl(0029)
till
till
1-tH~#S0-#50
11:~f~#30-#20
of
the needle thread is to become bigger when the needle
is
hooked. In addition to the foregoing there is afunction
of
is
used.
Note that take-up thread tension lever
~oo~~~~m•-m*~~•tt~•~~.-•re~~m
~#8o-#so
~#30-#20
~ll(0028)JiJT~,
m~~*~*o
-fft;fftft~oo~~*~1'FJff,
@re~-~lit&~~:I&A~o
is
the bottom dead centre; in such a way
the needle thread loop. The thread-amount adju-
~ral~~t~~Jlt2-3
~
ral~~~~Jlt3-4
~ral~~t~~Jltl-2
~ral~~t~~Jlt2-3
JlH:J~~ff~ihJJlit&~
:iim-
of
is
another name for thre-
0029
Fig.29
The improper-positioning
The following locations are generally regarded as criteria (refer to Fig29)
thread#80~
Cotton
thread#80~#50
Cotton
of
~
[!130
+·
chemical fibre
of
chemical fibre
fttitr.JiJJ~(m3o)
/\,
Thread
Thread
Fig.30
#
50
of
the frame thread eyelet my be the cause
Graduation marked on the frame thread eyelet 2-3
Graduation marked on the frame thread eyelet 3-4
#go~#
50
#go~#
so
Graduation marked on the frame thread eyelet
Graduation marked on the frame thread eyelet 2-3
slide plate and cam cover shall be made when the width
the
machine
of
thread
~7Ramm*M~~~I~~~.
(-)
4!JB~·®H~t~~-~:
1,
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2,jg!f!<flit.
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-
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£m~mnammM.
4,
il!Iiii~·®i!Wirfi:{IUl
5,
m~•*m1:Enaaaa~~mm.
The folowing shall be abhered in order to keep the machine in good working condition.
(
1)
Daily checking
I. The oil shall spray onto the oil sight when the machine
II. Repairman shall be sent for when abnormal sound is heard during the operation
(2) Locations to be checked once a week:
I.
To
take
II. To turn over the head to rid both the oil filter screen on the oil pump and the interior
stain and dust.
III. Loosen drain hole screw and take it off;drain all the dirty oil from the oil reservoir and reoil it.
IV.Oillevel must be above the lowest oil-level-indicating line marked
V.
The black powder,adhering to the magnet in the oil reservoir shall be wiped with sponge cloth.
narili*J~nat£~~.
-
~-~~~~a.
jj(~-$1ft:
8~~.
off
throat plate. slide plate,and cam cover; to clean dust
~--~~•~=
~~w~•m~~·*••mi*~•.
m•~m~mMw~~~~~.
R*~~naa~mna•nm~Rna.•A~~~mna.
(LOW)
is
running.
of
the machine.
of
the slotted feed dog with a brush.
of
"Low"
the oil reservoir
of
oil
=:
-t
J\..
-*%
I
ii,i~$f;llfljM§
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mt
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5.
m~.
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and
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measures of
1'
2.
3,
4,
5.
trouble
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Page 20
2
3
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Page 21
No.
2
Breakown
Therad
breakage
Skipping
stitch
Cause
1
Poor thread quality
2 Thread being too thick
3 Fusing thread due to high
temperature
caused by machines
operation at high speed
4 Tension being too higher
5 Breakage
looper, throat plate, and
needle guard at the
location
6 Failure to adjust thread
amount
!.Skipping stitch
thread (leaking
due to the loopers failure to
hook the needle thread)
of
needle
of
needle,
of
thread guide
of
of
two stitches
needle
Measures to be taken
1.
Quality thread to be used.
2.
Replacement to be made by an appropriate thread
3.
Silicone oil to be used and speed to be reduced
4. The tension nut to be loosened
grinding with oil stone and then polishing
5. First
6.
Adjusting the thread amount adjusting plate
1.
Adjusting thread-hooking amount
2.
Adjusting clearance between looper and needle.
3.
The timing
4. Adjusting the thread-amount adjusting plate on
thread amount changing conditions.
5.
Adjusting the frame thread eyelet.
6.
Checking whether the mounting positon
needle is proper or not.
7.
To
appropriate way and the timing
regulated in relation to another.
8.
To
way.
of
needle
in
reference to looper.
see if the location
see if the needle thread threading
of
needle guard
of
it is well
of
is
looper.
of
is
in
in
a proper
the
an
1)
Reference to the above cases 1 and
stitch
of
2.
skipping stitch
thread (leaking
needle failure to enter the
looper eyelet)
3. Skipping stitch when thread
of
chemical fribre being in use
4.Skipping stitch when thread
of
polyester fibre being in use
1.
Needle thread tension being
too low.
2.
Bobbin thread tension being
too low
3.
Twisted
3
stitches
Sewing thread being too
thick
4. Improper position
frame thread eyelt.
5.
Improper position
take-up tension plate
6.
Throat plate
of
bobbin
of
one stitch,
of
of
the
thread
2)
To
well reulated.
3) Increasing tension
4)
To
correct
1)
Using sillicone oil
2) Reducing speed
3)
Using needle for threead
I Reducing speed
2
Silicone oil to be used
1.
Tightening tension nut
2.
Tightening tension nut
3.
Needle
4.
Readjusting
5. Readjusting its position in an appropriate way.
6.
the eyelet
than normal one.
the needle
see
if
the timing
see if the threading
way.
of
large size to be used.
of
of
the needle thread.
of
bobbin thread cam has been
of
bobbin thread a bit higher.
of
bobbin thread
of
of
of
it
to a proper position.
throat plate to be used being bigger
2,
as
chemical fibre.
needle thread.
bobbin thread.
to
skipping
is
in a
-14-
Page 22
I) Needle being bent.
2) The operation
being not well regulated in
reference to the motion
needle. needle.
Breakage
4 foot foot and the centre
needle
5 Puckering
3) Setting-up
of
4) The problem
of
needle guard remaining be taken into account.
unsolved 5) Relaxing needle thread
5) Needle thread tension being 6) Appropriate needle to be used.
too high.
6) Needle being too thick.
I Thread tension being too
high.
2 The problem
of
the bobbin thread cam
for thread guiding failing
to be solved.
The problem
3
finish arising from bobbin
thread going through the
parts on the thread guide.
4 The force on the presser
foot being too great.
of
feed dog
of
of
the presser 3)
of
the timing
of
the timing
of
surface
1)
Needle to be replaced by another
2) Readjusting the timing to feed dog
To
make both the centre
4) The positioning
1.
Decreasing thread tension, esp. tension
thread.
2.
Readjusting
problem.
3.
Surface finishing all the parts on the thread guide.
Arm bed complete
Bed screw stud
Bed support
Side plate
Gasket
Side plate screw
Face plate asm.
Face plate gasket
Screw
Rubber plug
Cam cover latch
Spring
Spring suspension
Screw
Attachment installing plate
Spring
Screw
Screw
Cam cover asm
Cam cover
Cam cover
Spring
Screw
Cam cover guide
Screw
Bed slide asm.
Bed slide
Spring
Screw
Bed slide guide
Screw
Bed slide lock spring
Screw
Latch
Screw
Nut
Presser bar guide bar
Presser spring
Presser bar
Presser bar guide bracket asm.
Screw
Presser bar bushing,lower
Presser
Screw
Thread knife
Thead knife guide
Screw
Hand lifter
Screw
Washer
Hand lifter cam asm.
Rubber ring
Lifting lever
Hinge screw
Lifting link for lifting lever
Hing screw
Hinge pin
Lifting lever gasket
Snap ring
Snap ring
Lifting lever connecting rod
Screw
foot asm.
f£
Amt.
-=
Req.
1
2
~
31
32
33
34 GX378
35 GL19
36
GR1835
GSOI3l
GRl836
GRI353-7
fflili!I!P~ttff
~
tt
ff
$liJ
fftlt:
iT
fflili!I!Pliiiff~:!k
fflili!I!Pliiiff
m
ili
!I!P
1iii
ff
""
iliff'&:~~
n
Lifting lever link rear
Hinge screw
Swivel
Lifting lever connecting rod, vertical
Nut
Rubber rule
rocker shaft connecting rod
Connecting rod
Connecting pin
Screw
Feed driving rocker asm.
Reed driving rocker
Hinge stud
Screw
Hinge pin
Screw
Hinge pin
Screw
Hinge screw
Machine hinge plate asm.
Machine hinge plate
Nail
Needle
Screw driver (L)
Screw driver (M)
Screw driver (S)
Machine reat pin
Lubricating unit case asm.
Tweezer
Belt cover support stud
Belt-cover A
Screw
Washer
Belt-cover B cover asm.
Nut
Screw
Belt-cover B
Driving belt cover wood screw
Wood screw washer
lift
Camshaft
Big
Needle
Bolt
Camshaft
Big
Big
Puller
Puller
Big
Cover
Compressive
spring
cover
bar
bolt
rolling
for
camshaft
lock
bar
bolt
bar
bolt
component
compressive
bar
component
(6.
nut
bolt
bol
nut2
35m)
srew
srew
srew
board
bolt
jointl
bolt
lock
joint2
t2
camshaft
camshaft
bearing
bolt
washer
and
board
3m)
nut
board
116
nut
116
nut
bolt
rod
(LEFT)
bar
board
bolt
right
cover
nut
bolt
bar
bolt
spring
big
sleeve
Puller[Jronl 1
Puller[plasticl
shaft 6
rotch
E_drdlps
shaft
duty(with
left
right
bar
puller)
Amt.
u
Req
3
2
1
1
2
2
1
2
2
6
2
6
2
-53-
Page 61
Sir=tUaA
TABLE
CUT - OUT
Series
L818D/L818F
L819/L819U
L917 /L918/L918U
Item
Code
L818-T2
Subclass Remark
Mounting
Fully-submerged
Date
2016/01/29
L
1020
775
695
218
215~
203
116
67
40
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Page 62
L381 /L382/L383
~JKl1S3f!iPLUl6J
KAULIN
MFG.
CO.
lTD.
The specification and/or appearances of the equipment described in this instruction book are subject to
change because of modificationwithout previous notice.
MAR. 2016
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