Newlong DKN-3BP User manual

NEWLONG INDUSTRIAL CO., LTD.

For Operator Safety
Thank you for purc h a s ing t he N LI
Model DKN-3 Bag Sewing Machine Head.
• This manual contains the instructions and precautions for
using the Model DKN-3 Bag Sewing Machine Head. Be
sure to read and understand this manual before use and
use the machine correctly.
• Keep this
manual near the sewing machine for easy
reference. Be sure
to attach this manual to the machine
when lending
or transferring it to another person or
company.
• Please order this
manual from the nearest NU office if it
is lost.
• The contents
of this manual are subject to change
without prior notice for improvement and safety
purpose,
& Cautions of Injuring the
• Be careful, when you insert a bag to be closed into
the sewing machine, or your fingers may
be caught in
the machine between the presserfoot and feed dog.
• NWarning"mark is attached
to the machine. When
sewing, be sure not to touch on the machine.
~1utions of Being Caught in the Machine---
• A Needle Bar and Needle Thread Take-Up are
moving at high speed. NWaming" mark is attached
to the machine. When the maclune is in operation,
keep fingers and yourself
away from the Needle Bar
and Needle Thread Take-Up.
~------
t:*~'11':
WARNING
:=.:1o-t:11/!/I~(~)DKN-3~ffl~ ~1/a"
td J( \. ,J:l1', "ft n: $ 'M lJ M; ~ ~1, "~ To
• ~OJ11itttU1JHf t.t oKN-3 !lllU~~m ~~1/0J Jlittt1i ,-»i!t
fsl!fflJ:OJ1t~•IJ(tii~e~nt1r"~T. ~fsl!fflMl.:.~OJ
Jlitlt~IJ!·a-~ i*iall~<~~li '· l;/IJ?#a-+~1.181... t
JEL.<~~ffl<~~l,\,
• ~OJl&tl11tlJJ:&J'1~~1/0J-cJ11;::, 1, '"'?~'b~IJffl1, ,'/t_te_
lt7.>J::?, ~-1... t<n:~11,.
oKN-3 ~,u~m~~1/~L.WL. ... "£'lt.1'1ffll•OJ•-a-t.t
~OJJlitltUMtf~Ul.:.il'wJ-L. t<n:~1,,.
• ~OJ11itltUM'l~~~~tL1t•-a-1'1.:=..:i-i:r1/!/I.
C~)~lililMffll.:.~ttJt <te.~1, '•
• ~OJl&lt~MiH1.~11iJJ::t'/t.f~'.tc~OJ1t~, -l-'e'f.i!L.
·-=-~J! T7.>~}:tpa.,tJ;tT 0
& .ld,t.
• ~~:.,,J.:.tl/la-NiAT7.>~f~lttL.tt1i,J:~t1Jb::~J.:.
ffi7>t#~i6"£M~ntii~t.>~To
• ~~1/t;::J'1#i6tt•~-~~J6-=>tli'~To
m»1~~:.,,,~m£.ti~t>~tt1i \t,,~1t1.J:1... t<~~., ,.
~ .ld,t •
• tt•J::J:*~fft.J:jl!lj~'t*lil:J1, 'It\. '*TO
~v1/l;:J'1~tt~~-~~M-=>tlr '~To
~~:.,,ti~I/Jli ,ti, '7.>l'.:~f';ltt.J::J:* ~ff l;:ffi~«i:a-
m:--1•ttt\. \~<'fe~\. 'a
• The instruction manual and parts list is suqject to change without prior notice.
• ~01Rtlt!Uij./ 1<-~
1
JAl--fcl:.tlri!il..t.0t:t.>~-&~L.r::•J!.-t.f,~ttitt,1:J'*"to
From the Library of Superior Sewing Machine & Supply LLC

WARNING
P ERS ONAL I NJ URY MAY
RESULT IF THE FOLLOWING
SAFETY PRECAUTIONS ARE
NOT OBSERVED.
1. BE SURE THE AREA SURROUNDING MACHINE IS
FREE OF ALL HAZARDS SUCH AS FIRE, WATER,
OIL, RUBBISH OR ANYTHING THAT CAN CAUSE
INJURY.
2. DO NOT OPERATE MACH I NE UNDER WET
CONDIT IONS.
3. DO NOT OPERATE MACH I NE BEFORE READ I NG
INSTRUCTION MANUAL.
4. DO NOT OPERATE MACHINE ON VOLTAGES OTHER
THAN SPECIFIED FOR THE MACHINE.
5. BE SURE MACHINE IS CONNECTED TO BUILDING
ELECTRICAL SAFETY GROUND (EARTH).
6. BE SURE POWER (AND AIR SUPPLY) IS OFF
BEFORE PERFORMING MACHINE MAINTENANCE,
PARTS REPLACEMENT, ADJUSTMENTS OR
CLEANING.
7. DO NOT OPERATE MACHINE WITH GUARDS AND
COVERS REMOVED.
8. DO NOT TOUCH KNIFE, NEEDLE, PULLEY, BELT
AND MOVING PARTS WHEN MACHINE IS IN
OPERATION.
9. BE SURE MACHINE IS PLACED ON A SMOOTH
(LEVEL) SURFACE WHEN PERFORMING
MA I NTENANCE, PARTS REPLACEMENT,
ADJUSTMENTS, CLEANING OR STORAGE.
10. BE SURE THE MATERIAL TO BE SEWN OR CLOSED
COMPLIES WITH THE MACHINE SPECIFICATIONS.
11. DO NOT USE SPARE PARTS OTHER THAN
II NLI,, GENUINE PARTS.
•
~~©~~~§~~~L~~~~~e
l:::11$i!iS(©ffl\~ c. ~ 1.J "t"t©"t:5±~L
L <t=~ (,\0
1. It~ 0) Jal u1 I::$ i!& ~ ® .:. 9 mi ~ c. f.J: 7a> !k
~-- 11< .. im .. i:iJ:l!~tJ:ctJftJ:1,,tJ,.fiitJ,~-c
(f::~l,\o
2. 1J<fr2i tJf i~Ji i!Uli I:: fJ, tJ, 7a> II :J:;t-c: l;t fl ffl L t.J:
l,\""(:(f::~l,\o
a ~mm~•~~~~~-c:~;•~~~tiL
-C ( f::~ l,\o
4. lt~O)}~>E'.ffll±J~Bi--c:l;t~fi Lf.J:L'-C: < t::
~l,\0
5. 7-AftfJfti*!c ~*1, -CI, ,7a>$~m~ L -C <
t:: ~ I, \0
6. -~O)Jf-filfi • $~3'.tf'l • ~ff • :Rl;;l:tffllf*O)
AAl::~~~:Ji C.&tFI7-:Ji) ~~-:,-C(
t:: ~ I, \0
7. ii~:ti 1{-tJf~*1,f=~~-c:l;tlt~~~,ii L
f.J:I,\""(: < t::~ 1,\0
~ -~O)~ti$~:ti~,- ..... ~-~- ..
~Jv 1-- -f O)ft!ll1.J 1,' -c 1,' 7a> ~ rJfl:: l;t-¥ ~Mn
f.J:I,\""(: < t::~ l,\0
9. -~O)--filfi·!B~3'.tf'l·~--fffl~~~~O)
~[::[;t:ijI ;t.J::flj:iJr[::Thfl,\""( < t::~ l,\0
10. -~ -3 c. "t" 7a>~~tJflt~O)i±~l::-€i"-:, -C 1,,
7a> tJ,mtJ,~-c < t:: ~ 1, ,0
11.
11
=.:i.-CJ~~I¥(+*)" ~iE!B~~~[;t
-tlffl L ~I,' 1: < t:: ~ I, '0
From the Library of Superior Sewing Machine & Supply LLC

Identifying and Ordering Parts
Cautions When Using the Machine
Maintenance
Where the construction permits, each part is stamped
with its part
number. On all orders, please include part
number, part name and model name of machine.
Safety
Rules
To prevent personal injury:
•
All power sources to the machine must be turned off
before threading, oiling, adjusting or replacing parts.
•
All cover and guards must be in position before operating
machine.
•
Do not tamper with safety cover, guards, etc., while
machine is in operation.
Safety Precautions
• Always turn power off before threading, oiling, and
adjusting the machine or replacing parts.
• Wear safety glasses.
• Make sure, before starting the machine,
that all covers
and shields are
in place and closed.
•
Do not touch on the machine when it is run.
• Turn power off and make sure the
cutter does not
operate before you put your fingers under the
cutter
blades and the needles to adjust.
•
Do not touch on the machine when it is run.
• Please keep
in mind to handle the machine carefully and
to maintain the machine in good condition.
• Thread fuzz or dust must be cleaned with air or brush on
throat plate,
in the groove of feed dog or around looper
after the day's work.
• Wipe the area easy
to rust with oilcloth.
• Check the machine for loose screws and tighten them,
if
any, once a month.
•
Good maintenance will prolong the machine life.
ii
• :=.::i. -n1/:1'I:~ (~) ~00i!l!if4tffl'l;:.fj: DKN-1 O)KuliIEI~
8'1=1:a:-'M-uml., -C:t3VJ~To
• :::·r±xO)~l'i, /';-o/D7.J--O)/-/;-o/:ffi:%t1;~--c-:::·m~
<tc~'v'o
•~fflL~~~~~&O~ffl~O)~-~~-~~,~
O){ili.1/f'Vlnftt·--c-MVJ f;:.<1v '~1?i-l'i, :t3J'lv 'Liiv ,t~tc't5~
L,t~:=.::i. -n1/:1'I~(~)~OOJ!i!if4tffl'l;:.:::·J!!!if4t< tc~v 'a
r,!;j~O)~, ~f.11;' ~~:ffi:%' ~y1/)mf~1;' ~y1/:ffl:%
:a:-~m~<tc~v '~T J::5:td!ffiv 'v ,t~t.,~-t"a
• ~~~VJ·*-wJnO)tr::O)*ifill.,, *0)3t~, ~rm, w.ollf,
$8'1=13t~, 1:Ji1:"r,¢.e~f'f~O)trJf;:.~,--r•n»::a:--wJ0-c<tt~
V \o
• w.Bliff'f~O)t't51'i'tc~}jj-*O)~ffl:a:-:t3-t"-t"0')L,~-t"o
• jJ/'{-ftt·7'.J~M~0-Cv,;s::.t:a:-$~L, -c7'.J~G3ffi'.~L, -c<tc
~V\o
• jj-O)r/;:.-¥:a:-J-..n'5t't51'i, ~,--rtn»::a:-'WJ0-C<tc~'v'o
f~;E!l!w.ffl/f O) t't5l'i, ~, i"ffl:il»::a:-'WJ VJ~y1/7'.J~ll17'.J~ftv ,::.t
:a:-$~L, -c7'.J~G1t~:a:-fi0-C<tc~v 'a
• ~y1/Jljf~l'i~-\tft1J,~ft$ 8'1=17'.J~Gt±H[~L7'.J~0 -Cv '~Ta
r±Jt~< J&:lJk5 ttt f;:. m 1;:.1/f-um f;:.,tAtHt-c <tc~v 'a
• - a O)f'f~7'.J~~TL,~L,t~G, ittJitO)L, j!!J~0)7$\:0)
~, 1v-/';-O)~:bVJ1;:.~~0tdl::.VJ~l'i't5nv ,1;:.J&VJ
~1v,-c<tc~'v'o
• -¥ J-.;h,O) ~ Ull L, l'i~~ 0) ~~ f;:.~9 L, ~TO) --c- :::· r±tt
<tc~'v'o
From the Library of Superior Sewing Machine & Supply LLC

CONTENTS/ § i?(
1.Specifications/{±#k 2
2.The Points Before Operation/~~"i}u0)$$tt ----------- 2
3.Threading/*)ffiL- 2
4.Lubrication/~tltt 3
5.Aqjusting/a}Jl 4
5-1 Needle Setting/if-(1)5t~ ..................................................................................................................................................................... 4
5-2 Looper/ Jv- /-.::-(l)wffim ....................................................................................................................................................................... 5
5-2-a Timing of Looper and Needle/it~Jv-/-.::-(l)iR]wffl .................................................................................. 5
5-2-b Looper Stroke/ Jv-/-.::-(1):rft!Jii: ............................................................................................................................ 5
5-2-c Adjustment of Looper and Needle/it~Jv-/-.::-(l)ffililf .................................................................... 6
5-2-d Looper and Needle/it~1v-/-.::-(l)ri'li~ ............................................................................................................. 6
5-2-e Needle Height/it(l)rWJ~ ............................................................................................................................................................ 6
5-2-f Mounting of Loop Guide/Jv--;/'jf,1)-t ....................................................................................................................... 6
5-3 Feed Dog/~!)1i'z(l)wfflm ......................................................................................................................................................................... 7
5-3-a Vertical Adjustment/ J: r(l)wfflm ................................................................................................................................... 7
5-3-b Level Adjustment/7}(.ljl(l)wfflm .......................................................................................................................................... 7
5-3-c Adjustment in Longitudinal Direction/~fHi(l)wfflm ..................................................................................... 7
5-3-d Adjustment in Crosswise Direction/ir.;;f:;(l)wfflm .......................................................................................... 7
5-4 Change of Stitching Length/*i § rf}(l)~J! ..................................................................................................................... a
5-5 Needle Guard/itjf-j-t(l)wfflm ....................................................................................................................................................... a
5-6 Presser Foot/;J:1¥:::r:.~(l)wfflm ............................................................................................................................................................. a
5-6-a Presser Foot Height/ rWJ~wfflm .......................................................................................................................................... a
5-6-b Presser Foot Pressure/;J:1¥:::r:.fE(l)wfflm .................................................................................................................... 8
5-7 Thread Tension/*wfflr~1lf- ............................................................................................................................................................ 9
5- 7-a Thread Tension/* wfflr ............................................................................................................................................................ 9
5-7-b Needle Thread Tension and Guide/ J:*wfflt{i'j~J:*jf-1)-t ................................................................ g
6.Cautions when using the machine/1:slfJfL..l:::O)tl:l\lPi -------- 9
7.Troubleshooting/~'1/::..,0)}--7:f
;vO)))j{~~:M;r& 10~ 11
Parts List/$£:& 13-
NUMERICAL INDEX OF PARTS//~-o/~51 31 ~ 32
DIAGRAM OF SCREW, NUT & WASHER/;f"1/, To/r-, ?o/'1/~--~~ - 33~ 34
From the Library of Superior Sewing Machine & Supply LLC

1. Specification/{±~
Model:
~f.i~
DKN-3BP DKN-3W DKN-3
Maximum speed: :ii
i@j @]~~
4,500rpm 4,000rpm 5,000rpm
Stitch range :
>%iUHi
5.0-9.5mm 4.0-9.0mm 3.6-8.0mm
Seam:
>%ii~ ru:ct
Double thread chain stitch (type 401) 2 !l!ffli%ii (401)
No. of Needle:
it~
1-Needle 1 Jf,:it 2-Needle 2 Jf,:it 1-Needle 1 Jf,:it
No. of Thread:
*~
1-thread 2 ** 2-thread 4 **
1-thread 2 **
Application :
>%iiif~
PP woven cloth bags and Paper bags PP :707.~· *.!£~
Needle Size:
ttru:ct
U0144G 200
Lubrication :
~71E
Fully automatic %~ 13 I/J~71E
*Parts to be used for each Model ~f.lBIJ /;: J:: -!> ±f,t B93 &11=1
Part Name:
Jr~Jb~
DKN-3BP DKN-3W DKN-3
Presser Foot:
;j:ljl.::r.4i2
772061A 772151A -
Throat Plate:
itfi
6624L 774141 -Double
Row Type (jj!jjjt)
Feed Dog:
*~4i2
774051 774151 -
Presser Foot:
;j:ljl.::r.4i2
(43120) (772091A) 43120
Throat Plate: itt& (774081)
Feed Dog:
*~4i2
(774071)
• Standard Spec. of DKN-3BP and DKN-3W
is the Double
Row Type.
• Standard Spec. of DKN-3 is the Single Row Type.
(774101) 51124D Single
Row Type (J,ffi)
(774111) 51105G
• DKN-3BP t DKN-3W l:tjj!jjffi:a;-tJ~tl.,~To
• DKN-3 l:tJtll/lt:a:-tJ~tL,~To
2. The points before Operation/~~WJO)~~
• Oil the area through which thread passes, the tension
disc, the thread guide, looper, etc.
(Note:
An anticorrosive agent is applied to the machines
at the factory,
in order to prevent rusting. It is necessary
to use oil to remove this agent. Or it may prevent the
thread
from passing smoothly.)
• Confirm that the machine has been threaded as per the
instructions
3. in the manual.
• Confirm that the machine has been lubricated as per the
instructions
4. in the manual.
2
• lfflffilL, --c, ~1/:.,,:a:-Wlht~~T0t~1:t*O)im0!im,
*wffl-f- · *ff-1F· 1v-.1S:-ftt't~~,f7lil:a;-~1.., --c<tt~
v'o ~1/1/l~lj:~O)je1=_:a;-jW<·k.lhI~/±11ffi'ff'lft~~lclh
7lil:a:-~"'.) --Cl.t '~To ~lclh71E :a:-ll*;ft L,ftv 't* '/J~7.A-
;(t~mE:h/tl.t \:.t'/J~ibl'.J~To
• ~~Mt~~,f'*iffi1..,0)m!lA:a:-Ji--c, *imL,'/J~:iEL,1.t\:.t
:a:--Jit~L, --c<tc~l.t'o
• ~~Mt~~,f'~7!EO)m!lA:a:-w\:lv--c.-, ~7lil:iJt*'/J~:iEU'
:.t:a:--JitiiN-1.., --c<tc~l.t'o
From the Library of Superior Sewing Machine & Supply LLC

3. Threading/* iffi ~
The machine is threaded in our plant before shipment
and a
stitch sample is attached. lhen a new roll of
thread is to be used at your end, thread the machine
correctly referring to the threading on the machine
and
the threading diagram. (Fig. 1, 2)
DKN-3BP
DKN-3W
Needle Thread (1)
J:*(l)
Looper Thread {1)
"f :/A(l)
Needle Thread (2)
1:*(2)
Needle Thread (1)
J:*(1)
3
*~~tt~rww•--*~~L.~~•~w•L.~~~
j: "tt,~, :ltttl;:: ~ * ~l!tt~J'1, *lai L.~ (Fig. 1, 2)
~-lffl L. ~ < r-:~ 1,,0
Needle Thread (1)
1::/A(l)
looper Thread (1)
"flMl)
Fig.1
Needle Thread (2)
1:*(2)
Fig.2
From the Library of Superior Sewing Machine & Supply LLC

4. Lubrication/*ti$
The sewing machine is a self-lubricated machine. All oil has
been removed from the machine before shipment. Never fail
to fill oil in the oil reservoir when using it for the first time
or when it is not used for a long period of time.
The proper procedure is follows.
• Remove the plug screw A, and till oil until the indicator of
oil gauge B reaches the upper line. Use mineral oil of 22
to 32 est at 40t.
Example: Tellus oil #32.
• The contact surfaces may be dry. Oil them by hand.
Remove the cloth plate D, oil the moving parts. (Fig.4)
a)Needle Bar Bushing, upper G
Needle Bar Bushing, lower H
b)Feed Bar Ass' y L
c)Feed Crank Link Ass' y M
d)Feed Lift Eccentric Ass' y K
Looper Avoid Eccentric Ass' y J
• Run the machine by hand to check that it turns smoothly.
Run the machine for about 10 minutes at a low speed so
that the oil felts are sufficiently oiled. Oil the machine
again, and then proceed to the normal operation.
• You can check oil splash through the window E when the
machine is running.
• Check the oil level before starting the machine. Once
you oil, you need not oil again unless the oil level falls
below the lower line.
e Replace oil after every 2,000 hours ofoperation.
To drain oil, remove the plug screw C.
~A Plug Screw
~ --- . 7517'
EOil Gauge Window
;;i"-'( }1,6(~:$
Fig.3
4
;:O)Hffl~v:.,t.J:~~elb~llltl!~v:,,'t'-t~s, ilb~~1,,
r.:~1ll't'lf:11'1rL- "'Ci.. '*To
tnat> "'Cim~-to~, *~ffl !lU!II fllHj!ffl t., "'Ci.. ,t.1!1, '~v:,,~
ia-to~l'1,~--r~ilbL, "'C~:.t>il«iL- "'C<r.:~1., 'a
--·-j:*O)jffit,IJ;::ff-? "'C <tea 1, 'o
e J:.iil::::--:,1,,"'('1,,-57'7!/ A ~MIit, *-1/v~-V B 0) 2
*'10) J:.0)7,-(:,.,J;:ijl (*'t'J"±ilb L, "'C (;le ~1, 'o
itA-toidU-J: 40tl:::::toltolb~!r22cSt-32cSt 0)$1:fdr
a.mL- "'C<r.:~1, '-,
(0ll)V;i:Jv77;,,;t-.{ 11,,#32
• ?kl::::ffllb$~0)~--< 1viJUJJJn "'Cl, 'oi'flntis.-,~-;:-tti"
b, ~-i'"~~L,--e,;~llbL,"'C<t.::~1.,\, ~-;,,jJ.1~-D ~·'1
i'"L- "'C, HSU~l::::i':Ub L-*"t o (Fig.4)
a)tH$7'o/V~ G•H
b)~!J±-a L
c)~!J!J7;:.--!Jk1 M
d)~!JJ:. "'f ;fJAffl K, 1v-.1<-,JIJl..,1JAM. J
• ~v:,,~~"t'lell..."'Cffl~il"l::::lel~-to::~~••L-tt•. ~
v:.,~ 10 ~flO@!r, .fltJi't'Jl@IL, "'C, ilb~:;'f~l::::*.{ lv'7
.:i:.1vH::::l...~btt~-tt*"to -cO)fl, *altilbL-"'Cti~bill
lllii~M~"'C <t.:~1., 'o
• ~v:.,O)~tp l.:::.•tt -11vli'i1&~ E 't';t--< 1vt>f,ifftt., "'C
1., 'ot't~~--"'C~*To
e nl~ntn::::~i'"*-11vv~,v~--t."'C<r.:~1,,o -!tit
ML-"£-tt, ;t.{ 1vv~1vt,t"'f0)7,-(:,,~:i.;"'f~tbti1, ,~J
~- ltMO)~,Jft.l:.-,~*-ttAlo
• Ml:!:, HP(;rdt 2000 P(ir:r:l't'~tlL- "'C(te~i.. 'o
M~ti<~l'l,:1'7!/C ~•-J:i'"L- "'C<~~i, 'o
L
Fig.4
From the Library of Superior Sewing Machine & Supply LLC

5. Adjustment/iii.Im
The machine bu been adequately adjusted at our factory
before shipment. However, in case that it is necessary for
you to adjust in the field according to disassembly, mending
or replacement of parts, follow the below mentioned
manner.
5-1 Needle Setting (Fig.5)
Insert a new needle into needle bar as deep as it will go.
The concave part of needle should be faced to rear side of
stitching direction. Then, tighten the needle bar nut C
firmly to avoid loosening of needle.
Note: Please check the direction of the needle. If it is
not correct, the looper will strike against the
needle
and may break it. Further, thread break or
damage to thread may also result.
Looper
Jl, - /t -
Nut
G -,- . ., 1-
Neeole Ba r
Connection
/it ... lS~
A~~ew
Fig.5
5
,:Q)~V~l:t, H~il:iEf.tllll~L- '"( 1±17ilfL- '"(1,'*i"'til,
a!5Mi~#V.tc!:4(-'&IJ!ll~~-Jfl:t~l;)*t.,1t;, 7kO)illf!ll1i'~
~-fRU=l- -clJilllt., -c<~~i., 'a
5-1 fiO)~il(Fig.5) fiO)Jllrft
ti-~llitM lt-oR1Jt.t, •Jf f.t t.l:tiS = -":>~I;) *i"'o
a) ftt1);l<"~Ctt:;t~<t1)ll!l/v~'-''-offlHt)~~t1)~ffJ,(tiJ
l;:lfillt-CJ6l#lt-C(r.:~1, 'o
b) tt*ftl=tt~~l,)6t.,lf~\ ftt,l'Jt,llx_,o*~-~q;:~l,)6
lv~<r.:~1, 'o .:t,Q)f&, tl-*-'t-::,1' c "t"L-~iJi.tJrli~Mlt-C
(~~\,\o
lt)tt*-a- J: r t=IMi. t., -C:iE U, ,tf-Q) lfiJ ~ a-iiM t., -c <r.:~
1, 'o tf-Q)lfiJ~~fllHl;tol:, 1v-.r(-t,ittl=~tt~, tttii
f5f-t1,,tt~,
dllt1i~tt~L.-~i"'a ..:ttif:t:IA-Wn• 1Hft'tltt1)
m1in=t.t~*i"'o jfl...,1,,ftl:3Etll, -c<fe~\, 'o
From the Library of Superior Sewing Machine & Supply LLC

5. A(tiustment/ilJm
5-2 Looper
a) Timing of Looper and Needle (Fig.6)
Tum the hand wheel and check the crosswise movement
of the Looper with regard to the Needle. The Looper and
the Needle are correctly timed if the distance between
the Looper point and the Needle hole is the same
A=A'
0.4mm(Fig. 7) when the Looper point is in line with
the left-side edge of the Needle is the same as the
Loopermoves forward as Loopermoves backward.
If the distance as measured when the Looper is moving to
the left is lager than measured when Looper is moving
backward to the right, move backward to the Looper
Drive Rocker Shaft D and when
it is smaller move it
fonvard.
To adjust the position of the Looper Drive Rocker Shaft
D, first loosen the stud F of the Looper Drive Lever J
and loosen the Screw H. Slightly push or pull the Shaft to
obtain the required timing of the Needle and the Looper.
After
the adjustment, tighten the Screw F. To adjust the
Screw H, first loosen both the Nut G and the Screw H
and after tighten
the Screw H with the torque 7kg/cm.
After the adjustment, tighten the Nut G firmly.
b) Looper Stroke (Fic.6)
The distance between the Looper Lever Stud F and the
Looper Stud L should be 103.2mm when the Looper is in
the farthest right position to the backward. Adjustment
C811 be made after loosemng the Stud F of the Looper
Drive LeverJ.
After the adjustment, tighten the Stud F.
Needle
jt
C,-~,
Fig.6
6
5-2 ,1,-,<-0a•
a) tt~Jl,-1<-0>FaJill(Fig.6)
at0>~ffl!l}::lv-.r(-0),9ellli\ltiS-ltTQ~, Jv-/{-'lfi
firilT Q ~bUt~T Q ~t, tt,t (1.) J: ffii ~,v- .rt-(1) .9c
•t0>.ffi•ti\ IP.I Cf;:f.i!.f>(A=A' )J:::> 1::J!f§l:L. *To (Fig. 7)
• Jt,,-/{-;i)\fijJll, "'C~l;:llJt, '"'Ct- 'Q~O).j-~;i)~, Iv-/{
-ti\~UJ!l.. --cti 1::ll.Ji., ,--c1, 'Q ~(1.)-t~J::., *~1, ,w-a-
fi, ~,v!>'7:Y!>'*li D ~tl-!>1::lbtJi.-t~,JU;ib~*To iQ!
(1.)~f'1firl;:ll.JtJi. l,*i' 0
• ~,v?7:Y!;'0>,t-1vJ-F d~-C, *VE ~li-fL-*To ~
1v?7:Y?lfllb~ti,--ttJlo~It, '"'C, ft c!::1v-/{-t,~ OOftTQ
.fit:ftU;::L,, -*VE ~jcl;::Jj!l,,t-/v}- F ~i!i>#lt-C<te~
1.,,0
• A7At-Mllli*VH J-J:, -.lf-ro/t-G c!::1111:i-*V Hail~
"'Ci>"~- l'lfi-*V~J-1v?7kg/cm~i!i>#lt"'C<t.::~1,,0
lllmtt, 'To/t- G c!::*V H ~tn;O:.~tMi!i>#lt-C<te~
1., 'o (Fig.6)
b) Jl,-1<-0}jllfl.(Fig.6)
Jv-/{-»iftml, -C, b-:itt>;t:iJ;:°"f»1~1t~, A?'o/~,r-
1vt-(1)~c!::Jv-.1{-±-a~"r7f'-(1)ffi)llfi 103.2mm ~;- o
~,v?7:Y?(1)~Jvl- F d~-CJl.llll.., •••~1vl- F
~-~#lt"'C (I:: ~1, 'o
Looper movesforward
Jl,-H-FJ,1
A--1---- 1o1 1-- --
Needle
it
Loopermoves backward
1~ -H -{!til!<
A •t--rrn-==~-
Needle
it
A=A'= 0.4mm
Fig.7
From the Library of Superior Sewing Machine & Supply LLC

5. Actiustment/jom
c) Distance between Looper and Needle (Fig.8)
The distance between the Looper poing and the Needle
center should be
4mm when the Looper moves backward
at the farthest right position. Loosen the Nuts A and B,
and turn
the Joint Rod C until the required distance is
obtained. After
the adjustment, tighten the Nuts A and B
holding
the Joint Rod C and keeping the above proper
distance.
Note: Make sure that
the front face of the Ball Joint, left
D is correctly vertical., and is
not in contact with the Oil
Drip Plate E finally.
Please notice
that the Nut A has left thread.
cl) Clearance between Looper end Needle (Fig.8, 9)
Adjust the Looper so that the Looper point will lightly
touch
the Needle concave as it passed behind the Needle
0-0.05mm. {Ftg.9 6)
Loosen the Screw F and tum the Screw G as required.
Turning Screw G
to the right will make the Looper go
away from you, and tunring it to the left will make the
Looper get nearer to you. After the adjustment, tighten
the Screw F, and check the movement of the Looper
again. {Fig.8)
e) Needle Height
Adjust the height of the Needle Bar so that the Looper
point is
0.4mm above the Needle hole when the Looper
point reaches
the left edge of the Needle. (Fig. 7)
To adjust, move the Needle Bar B in the vertical
direction after loosening
the Screw A of the Needle Bar
Connection. When the proper height is obtained, check
the position of the concave part of the Needle again, and
tighten
the Screw A. {Fig8 of page 5)
f) loop Guide Setting (Fig.9 @)
Mount the Loop Guide so that it will lightly contact the
front side of the Needle as the Looper moves forward.
CRod
0-;, ~
Fig.8
7
c) tttJi.-1<-0>leMCFig.8)
Jv-.r~-tlSf&iJ!t..
·ct,-:,l:~ilHi:.~1:.~. Jv-.r~-O);S'e
•tt{-O)tp,i:,,~~O)ffillifi 4mm ,;o::.al!llt.."'C<fe~~'o Iv
-.r<-~.{1/}-Po/rtl)"T~,,J,- A, Bai.t~"'CP:;,r' C ~!ID
l, "'C!I.J!llt.. '"( <te~ ~ 'a
• ttt1v-,r~-0)1'111!¥At1l1J,~1,, 'J.itt.'1, P:;,r'~-=Fifrl::.IIDt..
"'C, ~l.:.:k~~,~t.tJx~l.:.IIDt.. "'C <te~1, 'o
el,\l.'1)f&, Jv-.1<-~3.{1/f-Po/ ).:~l!Jt)l>~f_t~ \):; l:.l,
"'C, To/I-- A, B~liJf.tlt"'C<te~~ 'o
i'£)-ro/ t- A Jtt-*~i" o IIDT:111PH.:.i'£t t., '"C < te~~ \,
i'£)*-,vV:i.-f:.,,J-ft o J'iifiii:J::.li!il,tt.. "'C, l,\llft&Mdl~
It E l.:.fil!-:,'"C~'ft~'il~, .JiiSt..'"C<te~~'o
d) tt tJ!l-1 <-01111111
1v-.1<-t,S'ft11ilt..'"CftO)ti~~i!iili"ollt. tJ-tl);t <-~
fil3l:1v-.1<-0)JUllU'1 o--o.05mm l.:.PJmt.. "'C<te~~ 'o
(Fig.9 ®)
*~ F aliJ'"C, 7-1'-;;,7'*~ G t-:sl.:.IID-t t1v-.1<-f'j:
• t1) :11 "', ~ 1;-::.JII-t t-=F M0) 15 "'-lb~*;-o IIIUi-* ~
F ~li)"'C, 1v-.1<-0)jlJ~t-iiat.. "'C<'te~li'o {Fig.8)
e)ftO)jlj~
1v-.1<-t1):$'et,itiitJ-O)~ -ffl!liii 1::. ~t:.-, tf-~'1) 1:iii li:.
~l, "'CA ,t~t,S 0.4mm l.:.f.i!o.t;I::., ft*-O)il!fi~t-llmt..
"'C(ft~~'o (Fig.7)
• 1.\11411:t, tt•f@~O)*~ A dliJ, tt• B a-1:"'f~-tt"'C
Ntlit..'"C<te~1,,o (5 .,,.:-~. Fig.8)
f) Jl,,-:111..ft:(Fig.9 @)
1v-7''Jf-1'J-:t.t1v-.1<-t1)11J~ 1::.~-:, "'Cftl::.111< ~, ft
O)fiJ~tJ:.i":b:.l.:.tiMi"Q.t; 1::.1& ~M•t'"C <te~~ 'o
®
@LooperGuard
~
/1, -"' fti{ l-' ~t ~
Fig.9
From the Library of Superior Sewing Machine & Supply LLC

5. A(tiustment/i,qm
5-3 Feed Dog
The feed dog should be centered in the throat plate with
equal clearance on all sides and ends with
the feed travel
set to the required stitch length (Fig.IO)
At the highest point of travel, tips of the feed dog teeth
should extend 1.2mm above the throat plate and parallel to
same. The adjustment procedure is as follows:
a)Vertical Actiustment (Fig.10)
Turn the pulley and the feed dog in the highest position
in its travel. Remove the screw C and adjust the feed dog
so that tips of the feed dogteeth e:r.tend 1.2mm above the
throat plate. Adjust the screw D so that its head will hit
the bottom of the feed dog and support same from below.
Firmly tighten
the feed dog with the screw C.
b) Level Ac:liustment (Fig.11)
Place the feed dog in the highest position in its travel,
loosen
the nut B, and turn the screw F to adjust the
levelness of the feed dog. Turning the screw to the left
will make the leading edge of the feed dog raised and
turning
it to the right makes it go down. When the
required levelness is obtained, tighten the nut E firmly.
c) Adiustment in Longitudinal Direction (Fig.12)
Loosen the nut B and move the feed rocker C in the
longitudinal direction. After the adjustment, tighten the
nut B.
d)Adiustment in Croaawiae Direction (Fig.12)
Loosen the nut 8 and screw A, and move the feed rocker
C in
the crosswise direction. After the adjustment, first
tighten
the screw A, and then confirm that the feed crank
D will move freely before tightening
the nut B firmly.
Note: Mount the Feed Dog to keep slightly higher at the
front side than the rear side because of easy
insertion
of bags. The level is O.lmm-0.2mm.
Screw D
;f;;.i
Feed Dog
izs'I-.&
- c Screw
::+"V'
Fig.11
8
5-3 ll•J•O.)••
~!J~O)~*(r(Jt.tilllH-1, <m~O)ai.,, ~-Jl:~J;::JHll..-tt
~-~) tt&tO)•O)tfl~-rir•• tr.ti a>- la'Jtmilllli:.t.t?>.t,
f:.1,\'dlfVC" <te~i, 'o
a)..t ""F O)IJl§I (Fig.10)
7"-!J-~Jlllt.. 't', ~!J1'l A ~t,-:,~t,jaji,'{u:,-l;::l..-'£To
.1.1:;I*~ C t-t.t-ft..,:', ~))~0)1tO)fiimtiStJ-~ B il"i?l
1.2mm 1±17.>.l::Hi:., ~!J~O)M)~~iM1!1iL'£Ta
-*VDlr."t"~!J~O)ri,:r.~Xx.o.t;lr.i,llllit..,
.1.1:;t*VC
~~!J~~mt~t..'£To
b) *•O)•• (Fig.11)
~!J~~t-:,~t>iftit-"fltali:.l..-'£T. "To/r E dab, ~!J
~ti~71<.i!lli:.f.to.l:? li:.-*V F f:ffll..- 't'llill..-!tTo
*VB ~ftl;::Jl!ITt~!J~i,SJ:lfiJ~l:.fJ:.,, ;fil:.fll-rti!
!J~l-J:rlfil~l;::ti:.,!t-r. ~9~il~71<.illli:.tt.,!tl...-tt;-r,,
1-A ~1...--:,tl"tl.ab#lt"t"<te~\, '•
c) io-•0>11§1 (Fig.12)
"To/r B ~af)'t'~!J~±'S C ~mitil::1/Jti,.t.. 't'••t..*
-r. ~!J~±i;-0)1/J~tla.l-lr., ~!J~O)frJ.O)utiti,al
-~~*To l\9•1lt-o/l- B ~l--:,tJ,..,.abMltt<te~
"'•
d) 1£.SO>ilJl (Fig.12)
To/t-B t-*V A daf>, ~!J~±ii' C a-tr.;til::.lbti:r.1...- 't'
iftlfl..-*To OOl!t:li:., ~!J~O)ft°tiO)&atl\Vlf~~*
To ll!IO)~t-*VA~Uaf>l..-'t', ~90,,}tDO)I/J~l;::
jlj$t,St,ti.,,t,:r.Jlftl..-
,:"iJ:r.i?l, *VA, 7-,,J- B ~1...--:,tJ,..,t(f
6?#lt't" <fe~l, 'o
ru ~!J~t.tfr=ffrIJ::6~~0)~•<0.1-o.2mm>O)Ji,ti~, a
O)*" 'Jb}J.ti; 1il <t.,:tl*T.
Feed Rocl<er
Fig.12
From the Library of Superior Sewing Machine & Supply LLC

5. A(tiustment/tQ!fl
~4 Change of Stitch Length (Fig.13)
The machine is adjusted to the stitch length of 8mm in our
plant before shipment. You can change the stitch length in
the following procedure when necessary:
Loosen
the nut B of the feed crank stud A, and turn the
screw D on
the Scale C. Turning it to the right will make
the stitch smaller (S), and turning it to the left larger (L).
Tighten
the nut B on]y by halfand turn the pulley by hand
to produce a length of seam to confirm whether the required
stitch length is obtained
or not. Aft.er the adjustment,
tighten
the nut Bfirmly.
Note: Nut B has left thread. When
the stitch length is
changed. Adjust the Needle Guard
as below mentioned.
~5 Needle Guard (Fig.14)
Adjust the Needle Guard B so that the Looper point does
not hit the Needle when the Looper pass throUgh the
concave part of the Needle. The upper edge of the Needle
hole must
be even with the lower furface of the Needle
Guard B when
the Needle A is in the lowest position in its
travel.
To
adjust, loosen the Screw C and move the Needle Guard
B
in the vertical direction. Be careful that the Needle A
slight]y touch
the Needle Guard B, so that the clearance
between A and B is O
to 0.1mm. After the adjustment,
tighten
the Screw C tinnly.
~6 Pntaaer Foot (Fig.5 See pap 5)
a) Presser Bar Height (Fig.5)
Make sure the height of the Presser Bar is set COJTectly if
the Needle Bar Nut C will not contact the Presser Foot
and if
it is possible to remove the Presser Foot D, when
the Presser Foot Lever is pushed down and the Needle
Bar is
at the highest position in its travel.
Loosen the Screw B and ad.just
the position of the
Presser Bar Connection. Please check the distance 8mm
between
the lower surface of the Presser Bar Connection
and
the Machine Frame.
b) Presser Foot Pressure
Adjust the pressure of the Presser Foot so that the fabric
is
fed uniformly.
Turn the Presser Bar Spring Regu]ator F to the right to
increase
the pressure, and to the left to decrease. Too
much pressure will cause thread break, but too weak
pressure will cause
the unsuccessful chaining on the end
ofthe mbric.
Sca le C
S!Ri~
Nut B
-r· :; I-
Fig.13
9
~• a1., l!l •0•1f<Fig.1 a>
~O)IU~ffl~~YJ'i:.1,' El .I 8mm l.:1,\Hlt.A±i7-G't.. "'(1,Yi
To fii,, El -~~J!To~tJ:, *17)JU(J¥~111tt.. --c<tt-ts
\,\,
•~!Jillffifdl A 0)77}- B ait~-C<te-ts1,,o
1±) 'To/ t- Bt.tft-* ~~To ~Tjj~ l.:&•t.. --C < r.:~v 'a
• B•tt C 17)J::l::ib.S*~D ~~L-*To
*~ D t,til::!11--t~ai,' I!! tll'11J,~<t.ttJ(S), ftl::Jll--t.!::
til1i, El iMtJ:*~<tl~t*"'t<L)o
•1"o/r B ~flil'laf)L, --C7Af-ltt,,t,l, --C<te~1,,o 7AJ-Ql7)
a1i,B ~ .i. -c~:i1.11)a1,, BCll.:t.t--:>--C"''°""t°?ti~•
l, --C<'fe~l, \o
illMil~~~:fl,'ft~-ro/l-B~L--?tJi.tJ.W~#lt-C<tt~1,\,
i±)"To/r B1'1ft*V~T •• 1,, El ·~~J!To~l'i:~,-r
ttP-t-~ at!!IL- --c <tt~1, 'o (rE.::.'• JffO
~5 ttfl-i:0•• (Fig14)
ttP-l-' B •-1, 1v-.1~-t,Sftl1) *. ~tJi617)•~tr~, 1v-
r~-11) .9f:J4UStH::~-?tii.lI,t.n ,.,t; l::!1.l!RL-*T O (0-
0.lmm)
ttti~?.!::b ril~?'ft~, ftl7)1cO)J::ffi~;t/-f: B 17)""fffi
t,s-!fcTo.t;*~ c ~ao--cttff-t:t.tttl::ti\o<BT
.S.t::it::1±B:L---C<tt~1,,
0 flf!1)S.b?'ft~,
*V C ~l--?
tJ'-tJ~-ab#lt--C <~~l, '·
~6 jip:c*O>IHIC5 ~-~ Fig.5)
a)jlj~--
jlp;r.it~v.1~-~7"-!J-17)JJ~t.:-~¥Pt... ri1--c¥P;r.
-~ J::lf, tt•~b?.!::bl:lf'ftttt:IU::t..'ft~, tt•-ro/
f-tJ!jlp;r..f;::cb'ft~-r, jlp:::c..O)J&t;)~L,tJS~~o~fllit,i
iliE--C-t.,
jlp:::c.·#}~17)rffi.!::$;~Y*f*O)IJU~l-;t 8mm ~To
¥P:::c.n~l7)*vE~•~--c,~:::c.n~l7)~•~••
l., --C<'fe~l, 'o
b) jlp:cEEO>II•
~~-~·=~!J l±i~.tL,o.t;1::¥11:::c.~11)jlp:::c.J£~al!!IL-*
To
jlp:::c..A :l°!JY !/1,IJtli F ~:;{:jl;::Jl!1T .!::jlp:::c.J£t,~!Mt< flt),
ftl.:fflT .!::ffil<t.ttJj:T Q
jlp:::c.J£t,S!Mt--t~ ,o.!::*Wti,17) ffi ml 1::tttJ*To t..t>i. L-ftT
~Q~~-1,,t,tlfitt<fttJ°*T·
--- -o-o.1rrm
B Needle
Guard
if ;Ii- t-'
Fig.14
From the Library of Superior Sewing Machine & Supply LLC

5. A(tiustment/i,IJ!i
5- 7 Thread T enaion (Fig.15)
The Thread Tension, the Needle Thread take-up, the
Thread Eyelet are
the important parts to get the uniform
stitches. Please see and check the stitch fonn and stitch
tension and then, adjust the parts.
a) The Tension on the needle thread should be only
sufficient
to produce uniform stitches on the under
surface
of the fabric. The Tension on the looper thread
should
be just sufficient to steady the thread.
b) Needle Thread Tension and Eyelet Guide
Turn the pulley in the operating direction until the needle
bar reaches its lowest position. Set the needle thread
take-up wire B so that the distance between its thread
contact
surface and the hole of the needle threadtake-up
hole C is
5mm.
• Check the size of the loop formed as the needle goes up,
and raise
the needle thread take-up wire B if the loop is
slDll.ller, and lower it when the loop is large.
• In
case DKN-3, Set the Eyelet guide so that the distance
between the center of
the screw E and the top of the
thread eyelet is 22mm.
5-7 RtllTllfl~Fig.15)
* IH·, .1:* If Mi, *;J-1'r li~.t1,1, ,t,tfti.,, f! ~~< !>:BUIE
fliU~~To *Mi*tJ, fii,, El ~R. '"CPHIL:C<tt~lr'o
a)*PH·
J:*O)*l\'ITl'1, ~0)-fflljO)~'fiil;::~tt,1,,t.dlllr' El '!JS
!:fHl~-o.l::H;:\R!IIL:*T• r *©*iM-rf~L,~il~tJL,ttfi
i.,, I!! r?<o.1:;1;::Jt!flt.,*--t.
b) J:/AlllitJ:1*;J-1'f-:{Fig.l5-a, Fig.15-b)
tt*ll~t>~tt>rtftti!ia,-:1.,*--t· J:*illffli e O)J:'fii.!::
.1:*3cff©:t( C O)fMJIWj~ 5mm laloJ::;.1:=*llliliti<l.>ilL
-~-fEL, "( <~~\, \,
•::t-!J-~DL, --c, ttil~b~.!::t> r©&fitiJi.;J:~o-©,
*0)1v-::t©~:1*~1J. --c, 1v-::t;)t,J,~1, ,11{;1'1, .1:* 118
fflj B ~ib•f*T• ~lr.1v-:;t~1*~1,'i.1-8-J:trlf--C<~~
11\.
eDKN-3 ©tl-8-1:t, .l:*;t!-1'¥D J:tJ&t.>t-t•t-*~ E O)ip,t,,
~lo~, .1:*tiimo~*~©ffilll»i 22mm 1;:.t.to.t%:::.1tfli
l, "C'(~~i., '• (Fig.15-c)
BWire:needle thread lake - Up
.l¼-~&'1!
A Needl9thread t ake - Up
J:,1'.~M
CHole, t.Jeedle thread lake-Up
l:.*~~f!M:
Fig.15
DKN-3BP DKN-3W DKN-3
Di ~~ ~i d•
I
Flg.15-a
FIS.16-b
6. Cautions when using the machine/ff!JflJ:.O)~~-l3l
The tightening torque of major parts is indicated on the
catalog. Unless otherwise specified, all the parts with a slot
or eccentrics should be tightened with 22 to 24kg/cm. All
other nuts, screws and bolts without the torque requirement
specifications should
be tightened as firmly as possible.
10
.:E:J{tflHi-©Mi~M"ltt-,v? 1~:b ?'i:t?" J: ~m~ t., --Cibl:J *
Ta ~"(0)-jt:,CO)t,l)iro, ffil,t,, L, "(1, \,otffSiro J'ic1\';l::ffi~~it,
--ci,,t,ti,,~Jt), 22-24kg/cm "'ejri~f;tlt--C<tt~i,,. ){, .:t
©fl!!©l-1v?tt.fl©t.tlr'~"C'©1'~l- .. -*V, xr-,v1-~1::.~1,,
"C' tJ: 1±1*7.> ~·t~-':><•~t-t•t--c< ~i;\, '·
From the Library of Superior Sewing Machine & Supply LLC

7. Troubleshooting
When trouble occurs when operating the machine, refer to the following table for selecting suitable measures:
Trouble
Needle thread breaks
Looper thread breaks
No chaining on fabric end
Thread skips
Cause
1. Damaged looper
2. Needle thread too tight
3. Worn our feed dog causing
fine stitches
4. Thread twisting or entangling between
thread stand and needle
5. Improper needle setting;
Bent or damaged needle
6. Needle thread too loose
1. Looper thread too tight or too loose
2. Damaged looper
3. Thread twisting or entangling between
thread stand and looper
1. Incorrect threading
2. Looper thread too tight
3. Improper timing ofneedle and looper
4. Presser foot screw loosened
1. Needle setting not correct;
Bent or damaged needle
2. Needle thread regulator set too low
3. Needle thread sticking on needle due to
heat
4. Needle bar
set too high
5. Needle thread pinched by needle guard,
collapsing loop
6. Looper thread too loose, not marking a
good triangle
Needle or looper breaks
1. Improper timing ofneedle and looper
2. Bent needle
Nonuniform stitch length;
1. Weak pressure ofneedle and looper
seam not straight 2. Bent needle
3. Worn out feed dog
11
Replace looper
Reduce tension
Replace feed dog
Cure
Secure correct threading
Set needle properly
Replace needle
Increase tension
Adjust tension
Replace looper
Check for correct threading
Thread machine correctly
Reduce tension
Adjust timing of needle and looper
Tighten the screw
Set needle correctly
Replace needle
Raise regulator
Use lubricant on thread
Lower needle bar
Lower needle guard slightly
Increase looper thread tension
Adjust timing of needle and looper
Replace needle
Increase pressure
Replace needle
Replace feed dog
From the Library of Superior Sewing Machine & Supply LLC

itil>tJT;(l,0
1v~/--~i1>tJT;(l,0
~ § ~I il>,fffl1t,
*i§ ii> at il>0 --Cv '0
1. 1v~/--~f~{Jjil>db00
2. J:* wlU--=fO)r1/:,,=11/il>~!IiTcg00
3. *:1J~il-~$El.,--c~ § il>~lflil><ft00
4. * :s'z:--Cil>Git'!"c'O)rbi-e* il>t---=>ntc VJ,
il>G '!0 tc VJT00
5. itil>IE~f~I&ftltGn --c1t,ftv'o atil>0t;:VJ
ffl {Jjl., --C\t '00
6. J:*wlU--=f0)71/:,,=11/il>~~f~i~---t~'00
1. r *O)r1/:,,=11/i1>5!l---tcgt;:VJ, ~~l~*iT
~-0o
2.1v~/--~f~{Jjil>db00
3. * :s'l.--Cil>G1v~/-_~'!-e0) 00-e* il>il>G '!0
tcVJ, t---=>ntcVJT00
1. *O)ifill.,JJil>lfflJi0--C1t '00
2. r *wlU--r0)7°"1/:,,=11/il>5!IiTcg00
3. itc:1v~/--~0)?7,{~::.,,:7''i1>..g.0--c1t,ftv'o
4. 1'.:r.~O)J!:,;,<;t.-;;;o,ifijA,""(:'1,, '00
1. itiJ>IE~l~I&#ltGn--Cv'ftv'o
itil>
at il>0 t;: VJffl{Jjl., --C\t '00
2. J:* W,Df{nil>fil;<to/ J--l., ---tcg--c1,, '00
3. $0)f;:il-")*il>itf~< 0---=><o
4. it~tJ,iWi<to/t-~n --c1t'00
5. J:* ;o,ittJ-1P'"t:'1'~;tfst1tGn --c
1v~7"i1>5'!<-e~--C1t ,ftv 'o
6. r*il,ifii---t~·--cJ:1t,~1tif~:a:---=><Gftv'o (ii>
;tVJ §~V)
1. itc:1v~/--~0)?7,{~1/:7"il>~\t 'o
2. itil> atil>0--C1t '00
1.1'.:r.~J±il>i§v 'o
2. itil> atil>0--C1t '00
3. *:1J~il-~$El., --C1t '00
12
1v~/--~:a:3t~T00
r1/:,,=11/:a:i§<T00
*:1J~:a:-3t~T00
*il,t---=>ntcVJ, il>G'!ftv,J::H~*ifill.,f~ttlt
T00
itO)l&#ltJJil>IE~il'~~T00 ~t.,1t,itl~
3t~T00
r1/:,,=1 ::.,,:a:-5!l< T00
1v~/--~:a:3t~T00
*il,t---=>ntcVJ, il>G'!ftv,J:5i~*imt.,f~ttlt
T00
IEt.,<*:a:-imTo
r *wl3--r0)7°"1/:,,=11/:a:-ii<T00
itc:1v~/--~0)?7,{~1/:7'':a:W,D!l!if---t00
1'.:r.~1!:,;,<-*-;;:a:-~il-")00
itO)l&#ltJJil>IE~il'~~T00
~u 'itl~3t~ T00
J:* W,Df{p:a:-J:lf 00
* l~ritl:a:-f:le:ffiT00
it~:a:-r1f00
ittJ-1F:a:-r1f00
itc:1v~/--~0)?1,{~1/:7'':a:wl3!1!ifT00
it:a:-3t~T00
1'.:r.~J±:a:-5!l<---t 00
it:a:-3t~T00
*:1J~:a:-3t~T00
From the Library of Superior Sewing Machine & Supply LLC

ORDERING PARTS
1. Description ofeach part and its stamp number is described in this parts list. Screw and nuts for parts are
shown adjacent
to the relevant parts. When ordering parts, describe clearly stamp number with its name of part.
2. The parts which have no Ref. Number can not be delivered independently; always oder it as an assembly.
3. A set of assembled parts is represented by the stamp number ofits main parts.
4. The last figure on the parts stamp number advances on each improvement ofthe parts.
5. Parts No. described in ( ) of Remarks means constitution ofthe assembly.
* The parts list is subject to change without prior notice.
1. ::."r.1JtO)~l'i, $J11=1:ffi:%, $J11=1~~' 11~~13Jj~<tt~v'o
2. {§.L, (~:ffi: Ref.No.) O)~AiiV.tv 'lr~J11=1/'i, ~f*J!i?'c--C~~it/vO)"t\ -t-:nl.:.~~T016-0m'tf~J11=1(*1l.$J11=1)~:'.'r.1Jt<tt~
l,, \o
3. *ll. 'tf~ J11=1 l'i-i-O) q:i 0) ±-'~ ~ o/ 0) ~IJ l':P:ffi:% --C*;jf- L- -C;!.i.i'J ~To
4. ~IJl':P:ffl:%1'i, -{-O)tf~J11=1il~afc!ll~:n6~Jl'.1.:., :&:~0)~¥il~ 1 :ffl:f'~kjlJJ::il~IJ, tru,~rJl':P:ffl:%1.:.t,,;blJ~TO)--C::."T*-
<tt~v'o
5. 1'~:fflllq:tO) C) i7'1/'i*1i~tlfJJtT6-'~~o/--c-t"o
* -*ffll~~(;tijli:!iiO)t.:~~is-f~(J'l]l!9~;::c!::f.J{N.,~J*90
CONTENTS/ § ?x
01 Cloth Cover & Side Cover Parts ....................................................................................................................................................................... 16
-A..-7,.j]/'{.-, fj!JJffijJ/'{.-001*
02. Head Cover B & Oil Pump Parts ....................................................................................................................................................................... 18
J::ffijJ/'{.-, ~$001*
03. Thread Tension & Thread Guide Parts ........................................................................................................................................................ 20
* Wl/l-r, *jJ-{P-001*
04. Crank Shaft & Main Shaft Parts ........................................................................................................................................................................ 22
:7'71/:71/-y7~, T$!1JOO-f*
05. Needle Bar & Needle Lever Parts .................................................................................................................................................................... 24
~-' ~-V/"'-00-f*
06. Presser Foot & Lifter Lever Parts ................................................................................................................................................................... 26
1'=fl.:r..~, 1'=fl.:r..m1fOO-f*
07. Looper Drive & Connecting Rod Parts ......................................................................................................................................................... 28
1v-/~-mi/JOO-f*
08. Feed Dog & Feed Drive Parts .............................................................................................................................................................................. 30
~!)~, ~!.1001*
NUMERICAL INDEX OF PARTS .................................................................................................................................................................... 34,35
/~-o/*5[
LIST OF SCREW, NUT AND WASHER ......................................................................................................................................................... 36
*~;\ To/~, ?o/1/-y--fi:~
13
From the Library of Superior Sewing Machine & Supply LLC

01. Cloth Cover & Side Cover Parts
~- A7J /~ ._' ·fJUJ iii 7J / ~ - M-f*
14
18~
16~
I 11
' 0.
13~ -f
15 ~ 14
For DKN-3
DKN-3ffl
~51
50
For OKN-3BPCSingle Row Type)
DKN-38PJJWt1t)
~52
For OKN-3W(Single Row Type)
OKN-3Wffi(J,SJ
~53
For DKN-3WCOouble Row Typel
DKN- 3W ffi(iJij 8)
54
~55
48
From the Library of Superior Sewing Machine & Supply LLC

01. Cloth Cover & Side Cover Parts
~~7'-JJ.1~~, 1JUJffii-JJ.1~~Mf*
~·
$ rfp ffi: % '!'.f~rfp~~
Ref.No. Part No. Description
1 56382H Gasket
:iJ'A?"o/1--
2 56382G Cover, top oil reservoir
rnitliU::
3 22524 Screw
*1/
4 56180B Support throat plate
i-Hi±il'
5 22839 Screw
*1/
6 56301 Cloth Cover
A--_Aj.J/{.-
7 22839C Screw
*1/
8 80 Screw
*1/
9 6624L Throat Plate (double row type)
i-Hi
(fi!jf ffi)
10 87 Screw
*1/
11
51281-T212 Cover, cloth plate
j.J/{.-:fv-1--
12 51281AC Spring A:f!}:.,,/f'
13 35772H Spring Washer .A
:t!J:.,, /f'TJ o/"1/-\?-
14 22760A Screw
*1/
15 22845B Screw
*1/
16 24X Edge Guide
~m
17 25D Washer and nut !*.~-r::,1--
18 25 Screw
*1/
19 56168 Holder, needle guard
it :iJ'-f-t;t-1v::$f-
20 22570A Screw
*1/
21 51125E Needle Guard
it:iJ'-P'
22 906 Screw
*1/
23 775281 Side Cover
fJUJrniti
24 22570 Screw
*1/
25 11/64W15103 Washer
!*.~
26 775291 Stud A7'o/F
27 775241A Face Plate, lower
rrniti
28 94 Screw
*1/
29 775251 Open Plate
lffil¥1ti
30 2W6 Washer
!*.~
31 1/4W05201 Spring Washer .A
:t!J:.,, /f'TJ o/"1/-\?-
32 92121 Screw
*1/
33 065401 Rubber Bushing
:f"-\?o/7
34 775261A Side Cover
{IIJJrniti
35 94 Screw
*1/
36 775271 Holder, side cover
j.J /{.- mt 1st ~J'l.
37 22874 Screw
*1/
38 56382K Gasket
:fJ' A7o/ J-.
39 56382] Cover, looper drive shaft
j.J/{.-
40 22829 Screw
*1/
41 56382L Gasket jj A'7°o/ J-.
42 56382AA Back Cover, oil reservoir
fJIJJrniti
43 22848 Screw
*1/
44 22585A Screw
*1/
45 56382E Gasket jj A '7°o/ J-.
46 56382D Cover, lower crank chamber
jlJ rniti
47 22548 Screw
*1/
48 21375AV Guard, V belt A-JvJ-.j.J/{.-
49 22829 Screw
*1/
50 775091 Cover, cloth plate
j.J/{.-:fv-1--
51 51124D Throat Plate
if-ti
52 774081 Throat Plate (single row type)
if-ti
(Jtffi)
53 774101 Throat Plate (single row type)
if-ti
(Jtffi)
54 775092 Cover, cloth plate
j.J/{.-:fv-1--
55 774141 Throat Plate (double row type)
if-ti
(fi!jf ffi)
15
ffil!( Q' ty
ffi ~
DKN-3BP
DKN-3W
DKN-3
Remarks
1 1 1
1 1 1
8 8 8
1 1 1
3 3 3
1 1 1
2 2 2
2 2 2
1 - -
2 2 2
1
(1)
-
1 1 1
3 3 3
3 3 3
1 1 1
1 1 1
2 2 2
2 2 2
1 -1
1 -1
1 -1
1 -1
1 1 1
2 2 2
2 2 2
2 2 2
1 1 1
2 2 2
1 1 1
1 1 1
1 1 1
1 1 1
2 2 2
1 1 1
3 3 3
1 1 1
1 1 1
1 1 1
1 1 1
2 2 2
1 1 1
1 1 1
9 9 9
3 3 3
1 1 1
1 1 1
4 4 4
1 1 1
2 2 2
(1)
(1)
1
- - 1
(1) - -
-
(1)
-
-1 -
-1 -
From the Library of Superior Sewing Machine & Supply LLC

02. Head Cover & Oil Pump Parts
J:iifijJ/,-, ~ilB00-1*
19
11
\
\
31
32
y
36
18
22
I
I
y I
I
I
¢
36
y
35
29
36
From the Library of Superior Sewing Machine & Supply LLC