G N 1 ~ rpJ!~~1ºJim~D/l~" r*J;&"#~ ~r,!l6\:t pTj;-~ ~ fflti~ ,:tE~ 1ttJm 1tJ "~~~"tt g:¡:"# ~,q Jlt ~ ~ !1mB'Í , 1lJ fF§ ~ lO §)ilfflo

*m~#Ji;J1I!,$tJlri~*, 'l1:fi~~"9f,*.m~~H#~m~~##J~~~§~,~~~~o

*m:tE tfj r1lli~:iiFnJ*ff.J~~ ~iJt~, ~~tt*m~~~~oo~~~~~m.~~~*0

~T~fflPi;J1I!~m~m~*m,*r~~~.~~**~~,ftrm~~:tE~m1lli.1r fm:lt!!I~ii*~,m~ rt fto fiiJ lE f!ffJ ~.m*m , /?Jj~~~.m~~~~.*~$,frmU~"9f:lt!!~~n~~o

Foreword

medium speed three-thread overlock sewing

machines are usually special machines for Knitting milis

and garment factories. used to perform overlocking in

sewing various knitted goods such as sweaters.cotton

jerseies.sweatshirts and woolen goods. etc.

It is precise in construction,reliable in quality and

nimble in operation,Two thread overlcck stitch forms with

a needle and two loopers.

Before being dispatched by the factory,each machine

has been subjected to careful examination so as to ensure

that it meets the required specifications and is in perfect

working or-dír .

For its proper use and adequate maintenance,it ís

recomended that the operator should read these

instructíons carefully and follow the suggested usage and

method of operatíon.you are assured of ít being brought in

a wonderful new world of sewing.

-,f¡li1l~~§it 1

=,=t~tt*.lt·············································· 1-2.:::,*m~.-)j.:{!m1trt(.Jjí•• ll··· 3- 4

1. ~t*'~¡Qi~··· 32. ~:i: '" 33. iM~~i;\4-······ 4

¡zg,{!m~~.:ñ~ 6-191.1tJJJ #:i!. : 6

2. i!.tt;fJt¡~t;fptJt~·················· 73. &.1t;fJtAf.. · 9 -104. i,I!J-:p·$t:it*J.t 115 . 1,!l-:p4t :it 1:1l. .. ... . .. . .. . .... .. 11- 126.;f.rt..4t~~;;t~ 127./J,'ltit~~;;t~ 148::k.~4t~~;;t~ 169. tJt!JJ{f.J 7f"M;;fp~-*- 17- 1810.1,!l-:PtJt~t.}:t.é9;;t~· · 18-19

,ñ,tl#l~~tJ ..·· ··..·..· ·· · 20 - 241. t:i.'t·li!j.v;fp~1t} 202. ~~mltLJ])f 20 - 21

3. Pf ~l!.jIJé!J;itff;fp~J.f;;t~ 24

t\,*i*IE~.i*~~~~mmUil···························28 - 31-1:::;,1Ift#~i'k#'" 40

CONTENTS

Stitch Form , 1

Specifications '" '" 2

Preparations forUsinq the Machine 5 - 6

1. Cleaning grease and dirt . .. . .. . . . . . . . . . . . . . . . . . . .. . 5 - 6

2 . Inspecting , . . . . . . . . . . . . .. . .. . .. . . .. 6

3. Lubrication and trial runs 6Use and Adjustment 8 - 20

1.0peration speed 8

2. Selecting the needle and thread 8 - 9

3. Setting the needle 12 - 13

4. Regulating Stitch Length 13

5. Regulating Stitch Width 13 - 14

6. Threading the Needle 14

7. Threading for die Small Looper 15

8. Threading for the Big Looper 16

9. Starting and Finishing Sewing 18

10. Adjusting the Thread to a Suitable Tightness ............................................................ : 19 -20

Maintenance and Repair '" :.. 21 - 27

1.Routine Maintenance and Repair 21

2. Changing the Blade 22 - 23

3. Common Problems and their Solutions 25 - 27List of Parts 32 - 39

Mode!' Accessories and spare Parts 40

-,!tif.ti~~s\Stitch Fonn

.=.timitltii2tThree thread overedgestitch

::::iim !ittirtEThree thread overlock.stitch

-.A ¡tj lttJJ it&.: 300o-ft /mín.k#i!.-!éJt.: U;-3.2mm~it. é.tt1:&.: 2.5 - 4.5rnmA k!Un)J. Jt.: s. ro tb;!k ~ T ifJ!t#;9 4mrn~#~-t: GN x l~ Nrn60-Nrn90tt~~: 40 - 80fJ - 4~*~A~~.;.tit~~,*';~~J.J{.-t: 250 x 210 x 270rnrn ( E?.:if;~Úla )~'*;t't': 1?14kg

-1-

t! lt -s}} *30004t/min 250W

800-15004t/min I50W

Specifications

Max.sewing speed: 3000 r. p. m ..Max.stitch length: 1.5 - 3.2mmOverlock stitch width: 2.5 - 4.5mmMax.thickness of material to be sewn: 4mmNeedle: GN xl Nm60 Nm90Thread: 42-801304 cotton thread and the likeOverall dimension of the head: 250 x 210 x 270rnm(includíng oil resevoir)Net weight of the head: Approx14kgPower of motor:

Sewing spccd Power

3,000 rprn 250W

~OOI,500 rpm 150W

-2-

66 65 12 64 11 62

*mfi~m-~~m.,.~a~~~~n~I~:1)~~AA~:~*~ ••• ,~1~~~*~.,~~~.~~.4~~.~..~~,~*~.~,~~ft~~*

~e~~M~*~~~~M,~A~.~~A~.~~. M~.~~m*~~a~at~~.~~~*~~•.2).~:~*~*~~.t,~.~*~~~~~~~

1t~*~~ij/J~A:!Ib. p/f •.:J..(f.~ ~~tb it•.:J.$¡.¡ jí tF- ik.%] ~: ~-lt_. *m+~ij/J~~, ~~*~M.~~~~~~~~.~~~; iu •• BtFit ~ (r!) jI'~~ UJLgtY-¡~:R~JJll.t~r¡?I~] ) .

-3-

3)~mm~*:s«m~.~••~~~A$+S~~~~¡;fr (~rol.ffi3.m-*Pfr-F) , *ftJ-tH'#;4~A, 1t~tb~A~#~~#~~. ~g. m~~~~~*#*~~~.~.,m~~~#~.~~B~.~#.~~~~~.~a,#~~2500H /min- ~H~~ 4'-~4t JL~-it. 1Ht~ ~~ff}, li3Ht i){.

t,~~'~ttt. ~~ ~t\3tm.

-4-

( .

Preparations for Using the Machine

Before usíng the machine for fue first time, the followingsteps should be taken after unpacking:

a)Cleaning grease and dirtBefore packing the head, allthe machine parts have been coated with grease to preventrust, it ma,y become hardened in storage or transport,furthermore, dust may gather in the machíne, so it ísnecessary to clesn the grease and dirt from the surface and

-5-

oil holes of fue machine.b.) lnspecting: The machine parts may become loose or

damaged after being subjected to strong shock in transportoSo after cleaning the grease and dirt, a careful inspectionshould be made, meanwhile tuming balance wheel to makesure that there are no trouble such as knockíng, unevenfriction of rotatíng, etc, if found proper adjustment shouldrnakc.(machine installation see fig. of assembly)

c.) Lubrication and trial runs: Add the clean spindle oíl toall places where need oiling (as is índícated wíth arrows inFigs.1-3).

Turn the balance wheel so as to allow the oil to makc itsway into the running part. Then wipe out the remaining oíl out-side and then make idle run al a Iow speed. Ir the machíneruns smoothly, coruinue fue idIe run al a higher speed of 2500rprn for several minutes: After that, recheck all the part s,Once you are satisfied that the machine is running properly,you may begin regular operation.

l.~/lH~~:~1~*~B~*m••.•~B~~*~m~~#_s

~A!ii2500'H/min, ~A1~*JL~Jt~3@.*". ~.fi:t-1'- 1)A.:6~1tm,G, -"r1ttt'l-.Lft·a.~.¡j.~~jIJ30004t/min. ~a~tts. foJ~r*U· ( J\!.1iJ 1> •

-6-

2.iiH~tJl~~Qm~i:t~'M;f•.;l{/.]t~;f+at, -&m GN x 112NrnfiO- Nm65{JLH.

tJ:.¡Wlt/.'j.flJtJ:#ut, /f](;N x 11'.!Nm75- Nm90{JLH.

~~~#ut, ~~S~~~_~.Lft~fIJ~*, ~*~~~. *JL4t~ lt, i~,G:fltt'l-;fJL#lr1~ .ft.Jj.~#=r..t~U1HI1l.

t~#-t f.j: r.lU\f~A~ {JL#}.N,;ft

100-1201. it 1'3;(¡l 80-120/2;f* ~~ 60-65

801. it::t3;(¡l 80/2;f*~~ 65

6o1. 7t::t3;(¡l 60/3;f~H\ 75

421.7t;f3;(¡'" 60/3;f*~~ 75

**-t, ;fJ 60/3**~~ 75

.:E. ± ;fJ 60/3;f*~~ 90

;l~~!ft 80/2**~li. 60-G5

r¡¡'121ttt ,~.A~;(¡l 60/3**~\ 65

tf *tt~.&.;f~A\' 42/3**~~ 75-80

+ .ft- • 9J.¡)pj¡ 42/3**~li. 75-90

-1Uf .&.~ -t,;:J¡.;jt "k 42/3{*~li. 75-HO

off.. tf ~ ~ -t, :k. ;f'..o/r. . 'PR.;(¡l 42/3;f~~~ 90-100

-7-·

Use and Adjustment

1.0peration speed:To ensure longer service life. at first the machine should

be run at a speed of not more than 2500 rpm so as to break itin sufficiently. After use for a month, the speed may beincreased to appaox. 3000 rpm according to the materialbeing sewn. The machine balance wheel should be turnedtoward the outside (see Fig 1).2.Selecting the needle and thread:

The needles of type GN-1 Nm 60-65 are usually used reirsewing soft and thin materials, while needles of GN-l Nm 75-90 are used for sewing tough and thick materíals, Selecte aneedle suitable the thread required by the workpiece orselecte a thread suitable for the needle required by theworkpiece.

The following table is suggested for your guidance,showing the suitable threads and needles usually used withdifferent materials.

Material Thread Needle

120 Count knitting Ior 80-120 count 2 strand 60-65undershirt cotton thread

80 Count knitting for 80 count 2 strand cot- 65undershirt ton thread

60 COImtknitting Ior 60 count 3 strand cot- 75undershirt ton thread

-8-

Material

42 Count knitting Corundershirt

Cotton jersey

Sweater

Thin silk and satinThin chemlcal libreeotton clothMedium-Iong fibre andeotton clothKhaki drills and denim

Chemical libre and thin purewoolen faney suiting

Chemineal libre and purewoolen cloth Ior overeoat,eanvass,ete.

3.~iUJlfl":;V¡At~!.t!:~~i!JtÉ , .;l.~jí

~ 'Jfl1:·VIJ -t ft;ffi f.iJ • ~*-~;;if.J~~JIAt¡¡.r, üf fiJ ;64- {.;JP

;# J::. ff flJ :JÍi ;Zjti J'. , ~ÉfiJl'i1i•t*:f.-l!f3{.;J~~t.}, lfJtT~.t4

4c-:.tttMtatit~.i ~:1) *JL4tlIJH#J ;ld~ {.;JJ:..1t

(

2) ~JtAtél]*~ (~~O lIJ

!HJLH~A1t;# É, -1J}JfJ

-

--

Thread Needle

60 eount 3 strand 75eotton thread

60 count 3 strand 75eotton thread

60 eount 3 strand 90eotton thread

8012 60-6560/3 65

42/3 75-80

42/3 75-90

4213 75-90

42/3 90-100

~*- T, .f;LgJ::.~~~<tt Jl..:r.~, Ejí1}lJ~.r~4H~tt1 (Ji!.l!llOO4) , 1~:H;f¡t.-*E ~~?'-2 (Ji!.f!]4) , ~~*&~¡;Jf1;-t-ír.J*)¡At.

J1..., 1tJt~~.Hf';¡L~.-~ ) EL ¡iJ{.;J4*1f~.~ *4+*H*.l~-l!f3 {.;J :6~ ',t. •

9-

4

6

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foJ ~ ~. 1;~;Jf tJt.4H~)/}fo¡ É-A foJ ti itt~t, 1t 'J' 1" iU~iE.JJt¡ !1!.

f ut*)LHrJf~~A~t~!f."

-10-

4. ir..I~iti2H~Jl#~~*~ar •• L~~~~~~a~~~~~~. ~f

~'~*#~A~##~*~.~~I,~~m.~~s~.*~foJT~tHH~~~4T5 ( JiLl-tlfi) I -It*4tl!fi !l(H'T5i!T¡;Hf> ~ *i!~to-~, ~ k1f-1t* 7ÉlÍ1i': -t ~~~ i,b. i!1t·yA.aryA~t*A tfti

M#~" *#~foJ*#~; ~#~foJX#i,b. ~~~*~~~1H~i;f.ir5itt ~f.ij ir..I~iti1!~Jl:

~~~#~~4. ~mA~~~~~n~~~_~*~~ü1í.. ill)-;t!ft. ~;t~~:.f3-.J)*~~iT8 (JiLfEl) , ;jf.f3-J7*Yx!1;;1~iJ7 ,fQ..IO-~foJ;G ,f~#J, ;'41f; m~,zJ1.~t':T .J) **.f.4rll-lt JfJ

16

27------+-20

m f'I<'ig)

-11-

+~8Tn*~~~~~.~Tn*~A~~~#~. ~~~rJf'.t~~ :tf{(.¡-{;i.f.. jf-4t- T n **J~11 ~ ~~. .J€i 4+~n *9~É.~~~. 1t~n~1O{(.¡É..;¡;~~~TJi~.1..nJt 13*4+~n ~*l4T8~~lf..

~~ k<ttJtJtat, ¡}¡1tTn*~t;~~~, -t-~·J'atJ!lj¡}¡~É..~~~ .

~ 11~ !t-**-at. -t;t~ lf.JJif 1:.{(.¡ ~ !t-*J.k:*J~ 14~ *'¡}( J\!. ffi 1 ) , ti,;; J€iftl-tIHJJ ULn {r!J -{;i .i.4+i.i, !t-*J.k:15,(f.lf,.JJif {(.¡ ~

~I~t;A~É..#~?ftI~~J€i4+.!t~~{('¡~J.k:*J~M~~lf..6AJt.'H~~~~

4H~4ib*-,(f.~4ib&1:.,~J€i~Jf-t**~~~1Rik~~ ( J\!.006) 16- 18- 19-20-21- 23-25;t;~ -26-27!f;00-43 Setting the needle:

After detennining the needle and thread sizes for thematerial being sewn,check to see if fue needle on thernachíne is the proper size.

Tum balance wheel (1) clock-wise fírst a.s shown inFig. 1 until the needle bar is in its híghest position. Loosenfue needle clamp screw (3) by tuming it dock wise with thespanner (2) (Fig .4) supplied with t.he machine, andexchange the needle (4) for a suitable one. machine,andexchange the needle (4) for a suitable one.

Take care to make sure thatl.) The stem of the needle is inserten fully as far as it

will go into the end of the needle bushing.2.) The long groove of the needle(i. e. the side without

-12-

notch) faces the operator.After settíng a new needle, tighten the needle clamp

screw (3) with the spanner (2) by tuming it counter clock-wise.

Skipping of a new needle may occur because the nee-dle clamp groove has been placed in the wrong directionTum the needle clockwite slightly until the small loopergets into the loop formed with the needle thread.4.Regulating Stitch Length

The stitch length can be regulated according to therequírements of the workpiece, Turn the balance wheel firstuntil the needle bar is in its highest position, then loosenthe stitch regulatíng screw stud (5) by turníng itcounterclockwise with the spanner (2) supplied with themachine (see Fig.5). Then move it together with the feedlifting link (6) along the slot of the feed regulater (7) so asto obtain a longer or shorter stitch. To obtain longer stitch ,move fue stitch regulating screw stud (5) outward; to obtaina shorter stitch, move it inward. Then retighten the stitchregulating screw stud (5).5.Regulating Stitch Width

To regulate the stitch width, the positions both forknife and loop ñnger have to be regulated at the sametime. First loosen the screw (8) oí the .knífe guard bracket(shown in Fig.I) and move the knife guard bracket (9)together with the knífs guard (10)to the right. Then loosenthe srrew (11) of the lower knife holder with a

-13-,

screwdriver and tum its adjusting screw(12) with the handso as to move the lower knife holder toward the left or rightside to reach the required position. Then tighten the screw(11) of the lower knife holder. Finally , move the knife guardbracket (9) to the left until the left end of the knife guard(10) touches the upper blade (13) gently. Then tighten thescrew (8) of the knife holder.

To obtain a wider stítch width, move "the lower knifeholder' to the right: lo obtain a narrower stítch width, moveit to the left.

To regulate the loop finger on presser foot, loosen thescrew (14) of the loop finger on the presser foot first, thenmove the loop finger (15) along the slot of the presser foottoward the right or left sides, in accordance with the posí-

tion of the knife. After determiníng its position, retightenthe screw (14) of the loop finger.6. Threading the Needle (see Fig.6)

Place the bobbin on the spool pin and then thread inorder as indicated with arrows. (see Fig.6.)

16 -+18 -'+ 19-+20 -+21 -+23 -+25 right side -+26 -+27back r- d.

7Jj\~~~~JJ5t

~#~A~##~*~A~~I, *~~~(~OOl)~~~~, ~~~.á~~~~, M~~~~~*~~*~~~(J¿OO7-S)

29 -+30 -+32 -+34-+36 -+:W-+38 -+40 -+42-+43

-14-

30

385937

34 33

7.Threading for the Small LooperTum the balance wheel until the needle bar is raised to

its highest position. Slide the cloth plate (28) (see Fig. 1) tothe left, and place the bobbin on the spool pino Then threadin order as indicated with arrows. (see Figs. 7-S) 29 -+30 -+32 -+34 -+36 -+37 -+38-+40 -+42 -+43

-15-

35

43

8.:k.~<tt~~~*~+;;G~~44foJ""f.rr1t ,foJ~r~4H~.a,1~<tt:ft.L1f J~Jit~ 'Íi

l'.,:re.~~$b~.(f~.fd¡}i.L,~$;fiff -5-itYd~foJ*ik.~ ~ (Yl- 009)~-~-~-~-W-~-~.-M-+~~.-M-~

8. Threading for the Big LooperPull down the right side cover (44). Turn the balance

wheel clockwise until the needle bar rises to its highestposition, and place the bobbin on the spool pino Thenthread in order as indicated with arrows. (see Fig.9)

42-+45-+46- 48 -+ 50 -+ 52 inside -+ 54-+52 outside -+

57-58-16-

1

~---

9. ti.t@J (t-J 1H~III~tnR:.~1t~~,~m&~.+A.~~&~~~,~L~

~~.(f&~""f~,*L~~~&~~;;G~~~, ~$~""f&~, .pj.1tMdit~.

-17-

~~w~.~~~mh$~~~~; ~~~~~~#. ~.r,~ 4ñ fflt1k y~t;.f:- él.] ~ foJ íWlJi.

ttw~%..~·. ·.ild~~~-~, ~-tttt*.AA;,#'~AJ!t-J-.~~~#tt; ~m.nA~B~éI.]~~n •• ~-J-.~T~~~. ~ tlJ JfJ1-WIfJTJ!t-J-. ~;l.~.i;i~ ~-tt.9.Starting and Finishing Sewing

When starting sewing, ñrst lift up the presser foot withthe presser foot lifter or pedal, allowing the workpiece tobe placed under the presser foot so as to keep theworkpiece 10 be placed under the presser foot so as =.keepthe workpiece parallel with the right side of the presser foot.Then put down the presser foot to begin sewing.

In sewing, no pressure- should be exerted to push orpull the workpiece which needs only a gentle guiding inorder to go forward in the required direction.

After each stitching is over, continue to sew without aworkpiece until the thread chain has fonned will help tofasten the stitch. Then cut off the chain with a pair of scís-sors or the knife and remove the workpiece. Be sure not tobreak the chain by pulling or the needle will be bent.10.iJ!J:P~~r~~t(.]JJ5!:~~m~.~.~~~#~,*~*k; .W~~~Á*

"*íW, Eljj[ftt.t«- ~~~ él.] ,ti.fi lJi4tii:.t.t, ~;l.-iftl~ t.t. éI.],f,}~f•

~.~.~~.~~~~.~, -.El~~~~L~~~!~éI.]tf jñ] •• ~Jt ~~ $J ~1},~!"1ftl~ J.f.)Jt¡>*:HW~f,f~1tJfJ.

-j¡o*.tii~~;;~~~~~t~éI.]~~,jX.ll}j k ~4t ~JÍJ{(.;.tJ:.

-18-

})

(flp~~~~lÍ1é1.] •• ) ;k.'.fA,j'~4t~{(.;tJ:~ (flPL1t~&.

lÍ1éI.]~.);k.,f,}.

~*.~~~~L~~~.~T~.~~k.#~éI.] ••;k.,f,}A,j,~ -tt~éI.]•• ;k.~f.

1}!]it~.ft lt *-, +~·it~ él.] •• ,f,}. '.f ~, 1if 1~m*_ *J-lt59 ( Jil.m 7) •

k,j' .-tt ~{(.;._,f,}'.f:;f.Vt.t.Ht1}!]" Jf;. ~~U~~~~R~~ ~ éI.]-tti:!:.:it.;t..~Yii!--!Viftl ~ ~.ft.tt.éI.],f,}'.t.. -.~-tt .I;él.] ~. • ·){dYi.f:-* Jt ~ él.] '.f $:f1.Jl., ;f ~M~k. ,j'~ 4t .L él.] •

~~-'tmutl!.. ~~;; ~ .r,f1:~ él.] ~!t tf fá} •

10.Adjusting the Thread to a Suitable TightnessBefore cornmencing regular sewing, it is necessary to

make a trial run in order to adjust the threads to a tightne-ss suitable to the nature of the workpiece, since this willgreatly affect the sewing stitch.

A correct cross knot woven by the Three- ThreadOverlock industrial sewing machine should be interweavedon the middle edge of the workpiece,

A stitch woven on the upper edge may be attributed tothe thread tension of big looper (L e the thread on thesurface of workpiece) being too tight or the thread tensionof small looper(i. e. the thread on the back of workpiece)beíng lo loose.

A stitch woven on the lower edge may be attributed tothe thread tension of big looper being too loose or thethread tension of small looper being too tíght,

The tension nut (59) (see Fig.7) can be used to adjust

-19-

the tension of thread of the needle as well a the big andsmallloopers.

If no satisfactory stitches can be obtained after adjus-tíng the thread tension on the big and small loopers, it isnecessary to adjust the thread tension on the needle. Thethreads of the big and small loopers will not be interwovenneatly on the middle edge of the wórkpiece unless thethread of the needle is sufficiently tight.

l.g"m'tt!fUP ftl~ft~~'t1tlflBt, áffi ji:~)1iJ ft!} ~~ ~4,1'Bt~P)IiJ- ik. fjf lfl

)¡1J~~hliJ?tdYi~i'titft!} iltfJt{Jt.)IiJ, -iJ} &;1tlflJt1t!,)¡1J?,f)IiJ,?~1tlfl~~~, ~~W~{Jt.B~~m~ ••

{Jt.B~~~~, ~m~'t~#*~.~~lfl~~~,ffi~~~.~#~~ft!}Z4~~~'t,Lm~~~'t~m~~,~Bt, 3-t?f1fJl:.1tJfli1tAt1T~~., 4M;t.·M:Jf;.

~--AHtiJLT, ~1-}) .B.l1tH-ik,l'~f't,~-f4-l1tH-ik*~~k~~. *~~K$~-ik~lfl,ffi~k~~~~.2. iJijitUJJ Jll}J Jt (.w, IIJ1) :

7t:fH~J]*~4J8~t~, -1i-:f1f-tiJ]*9foJÉ;f~#J. #~ -iJ} iiL

J] Jt ~ ~*:kt7T:#~~J]Jt, Jfl~+foJÉ •• #5~J]Aw~~~~,

ft~J] Jt 13;filí~ 'r J] Jt 62. ~$ lflÉ+*t~.tJtJ] *.J4J63 , -1i-lflÉ+:f1f~J] Jt 13M.~J]&64 ~ .#n~,JÍi$:f1fii+t~7t. ~$

-20-

#~TJ]Jt. R~mA+~~rJ] •• ~~, ~~*rJ]Jt~~~.

~. TnX#~É, ~~:f1f~~#J]Jt~~~*~~~.~~Bt~~~#~~~J]~~~, *~JI:.~~~BtL~~k.

\

,;&~Bt1;~~-4Ifn Jt .J]Jt~~~~A~~~nJt~~~~Bt, ~~~~rn

Jt.~~Bt. lflÉ+~rJ]Jt~.l1tTJ]4ft!}.~~,~n~to·H~66 ft!}~ -f- tfJ - {.f- -f-, -W&;~i:Ht~ {i.LL -f- tfJ. ~ ÉJf] ti.+«:~T J] &*!~65.

~~~nJtBt, ~~~##J_A,~##r*~A~~I. ~É-1i-mti.+•• #5~J]Awft!}ti..tfJ,lflÉ+*~J]Jt·134tiA~J]&64ft!}~~~, 1t~J] Jt 13~r J]Jt 62-l-J:0.5~*.mÉ+*.J]~4J~~~. A~, :f1f-tiJ]*9~ti.##l. 1t4~J]~10ft!}~·~ •• ;tr~~~J] Jt 13. **:gJ]**~4J8«:~.

Maintenance and Repair

1.Routine Maintenance and RepairIf the machíne is in constant use, the oil positions will

have to be lubricated once every 4 hours. Clean spindle oilto be used. Never use any other lubricative oil, especiallyvegetable oil of any kind or the service life of the machine

may be affectedAll parts of the machine should constantly be kept

clean. Aperiodical inspection of its temperature ls also nec-

-21-

·essary. If any disorder or abnormal noise occurs, a carefulcheck and correction should be made at once so as to avoidallowing minor problems to become major ones.

Under normal conditions, minor maintenance shouldbe conducted every month, while cleaning and majormaíntenance should be conducted once every six months,Before usíng for the first time after a long period of idle, amajor maintenance and inspection will have to be made.2. Changing the Blade (se e Fi.g.1)

Loosen the screw (8) of the knife guard bracket andmove the knife guard bracket (9) to the right. The blade isto be dismantled and mounted in following way:

Dismantle the upper blade first. Push lightly on the Ieftend of the cover (60) of the upper knife with the left handuntil the upper blade (13) moves slightly from the lowerblade (62). Then loosen fue knife screw (63) with the righthand. After that, take away the left hand from the cover ofthe upper knife.

Then dismantle the lower blade. The lower blade (62)can be extracted merely by loosening the nut (65) on thelower knife seat with the left hand.

Then regrínd the dismantled upper and lower blades onafine grínding wheel. Care must be taken to retain theoriginal angle of the blade edge and to prevent over heatingand annealing during grindíng.

When mounting the reground or new blades, the lowerblade has to be mounted before the upper one. Insert the

-22-

lower blade (62) into the slot of the lower knife seat with theríght hand until the blade edge is -Ievel with but does notexceed the upper surface of the throat plate (66). Thentighten the nut (65) on the lower knife seat 'with the lefthand.

The upper blade is to be mounted in the following way.Turn the balance wheel clockwise until the needle barlowers to .its lowest position. Then push lightly on the lefterid of the cover (60) of the upper knife with the left handand insert the upper blade (13) into the slot of the upperknife seat (4)"so as to make the upper blade (13) overlap byO.5mm with the lower blade (62). Tighten the knife screw(~3) with the right hand. Fínally, move the knife guardbracket (9) toward the left so as to make the left -end ofknife guard (10) (see Fig.1) touch gently against the upperblade (13), and then tighten the screw (8) of the knife guardbracket.

-23-

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~ .EL.

-24-

Common

3.Cornrnon Problerns and their Solutions

roblemsPossible cause

1. The stitches 1. Dust or fibre hasI

are uneven I gathered betweenI th . d·or incorrect. ¡ E' tensíon ISCS,

I making it impossi-I ble to clamp the

thread2. Skip stitch . 2. (l)The needle bar

is at improper

height and the

needle is at an

improper height

and direction.

Recommendedsolution

1

1. Dismantle the

tension discsI

and get rid of

dust and fib-re.

2. (1) Readjustthe needle barto its properheight. Referto the methodof selectingand settingneedle heightin this manu-al.

(2)The tip or stem I (2) Exchange

of the needle is the needle for

bent, or típ is a new suitable

dull, The type type and No.

and No. has

been incorrectIy

selected.

-2ñ-

Conunonroblems

Recommended

solutionPossible cause

3) Grind upper

and lower

blades.

3) Blade is dull.

II

-;1-1-·h-p-n-e-e-.d-lf>-k.(1)The needle No.I

thread I is not suitable

hreaks I for thread No.

I (2) Needle hole is

I!¡

aged.

h.(l) Exchange

for suitable

thread No.

(2) Exchangefor a new

needle.

I

f) Loop finger.is damaged

I

when sewing ¡coarse or the a new needle.quality of the

needle is poor.(3) The quality of

the thread is

a narrower(:~)Exchange for

a thread of

better quality

(4) Refer to therelevant. dese

ription of

the instruct-

ion

stitch,

6. The edge ofthe sütching

ñ. Blade is dull, or

loop finger is im-

properly adjusted ,

therefore is uns-

6. Grind or ex-

change upper

and 10wPf

poor.

(4) The threading

proeess has not

been correctly

followed,or the

needle thread is

too tight.

(5) Blade is dull.

is coarse orthe cut. odge

is untidy.

blades, and

readjust the

position ofthe loopñnger.

uitable to the po-

sition of the knife.

(fl) Grind upper

and lowerblades.

-26- -27-

4205442186171 904 1117Y"

42184 7?\ca'~rd~ 1407 ~

42005 : ..42003

42182

1373

i228lf 42253 132589 42051

1~8~ ~ilJ'ri'®~~u "'"LE10106 ~ 228 93Q 42000 ~ 'ir ~~ rJ 10107

~~~42057 ~ ~

42154 42150~

42105

-30-

42042

•

421061101

Y324742330

'1'i'-31-

85 Presser Lever Lifter Hinge Screw

LlST OF PARTSNos. I Description

93 Needle Bar Thread Retainer Screw

133 I Knife (movable) Holder ScrewI .I Screw for Feed (front) Rack Shaft Crank Clampmg

and Knife Grinder Knife Holder Bracket Clamping

Screw for Looper (right hand) and Spreader LeverConnection Guide,Needle Bar Connecting Rod Guide,and Needle Guard.

Knife (movable) Lever Connection Cap Screw.

I Screw for Regulator,Fee'd (front) Dog,Thread (looper. ,right hand) and Welt Guide.

Screw for Looper (right hand) and Spreader,Thread( looper, right hand) Take - up and Thread (needle)

Take-up

Thread Unwinder Thread Guard Screw

157

171

175

190

Needle Bar Thread Retainer Bracket Screw

Screw for Feed (front) Regulator Stop. Presser FootChaining - off. Thread (looper, left hand) Eyelet

Frame Top Cover Extension Holder Thumb Screw

197

208209

228

Looper (left hand) Set Screw

233

283

-32-

Nos. Description

330337378404424440

I Frame Sidf>Cover Screw

: Feed (front) Regulator lndicator Plate Screw

I Looper(left hand)Lever Connecting Link Hinge ScrewI .I Knife (movable) Holder Cap ScrewIII Balance Wheel SeLScrew

I Knife (stationary) Holder Stop Screw

: Set Screw for Feed (front) Eccentric and Thread Un-i; winder Thread Guard Rod: Set Screw for Feed (front) Eccentric Needle Bar Bu-

shing, Thread (looper, left hand) Tube

Presser Foot. Spring Adjusting Pin Set Screw

¡ Screw for Frame Top Cover and Throat plate

I Tension Screw Stud

1 Needle Bar Connecting Link Hinge Pín Sel Screw

I Machíne Cushion Screw

1012 Feed (front) Regulaior Connertion Adjusting SlTew

Cap Screw Ior Feed (front) Connecting Rod, Looper( right hand ) Spreader Lever Connertion and NecdlcBar Connectint Rod

1101 Knife (statíonary) Holder Screw

11171 Welt Guide Regulating Thumb Serew

-33-

453

462

464742828

904935

1057

Nos. i Description

1132 Feed (back) Connecting Link and Regulator Screw

1148 I Lifting Lever Stop Screw,12531 Feed (front) Bar Hínge Pin Set Screw

1258 i Needle Bar Crank Set Screw

1259 !Set Screw for Feed (íront) Regulator, Frame Rot.aryIShaft Crank, Looper (right hand)and Spreader Lever! Ball Stud, Spreader Lever Hínge Pin Bushing andi Needle Bar Crank Position and Ball Stud.

1301 I Lifting Lever Hinge Screw

1324 ¡ Presser Foot Screw!

1354 I Balance Wheel Position Screw

1373 :Screw Cor Feed ( front ) Connecting Rod . RegulatorI Connection Hínge and Knifetmovahle) u-ver Conne-

ction Hínge

1374 Feed (front) Regulatíng Screw Stud

1375 Frame Rotary Shaft Crank Position Screw

1376 1KniCe(stationary) Holder Regulatíng Thumb ScrewI

1377 1 Presser Lever Screw Stud (eccentrie)

1378 Pressure Regulating Thumb Screw

1407 Maching Base Thumb Screw for 3 in table (accessor-íos)

-34-

Nos. Description

1437 Cloth Plate Hinge Screw

1444 Feed (back) Regulatíng Thumb Screw

1520 Screw Nut for Feed ( front) Connection Rod Hínge ,Feed ( front ) Regulator Connection Hinge, KnifeGrinder Knife Holder Praeket Stop, Knife (movable)Lever Connection Hínge, and Looper (left hand)Lever Connecting Link Hinge.

1534 Knife (stationary) Clamping Stud Thumb Nut

1547 Screw Nut for Knife (stationary) Holder Stop, LiftingLever Stop and presser Lever.

1629 Needlle Clamping Nut

1680 Feed (front) Regulating Screw Stud Nut

2102 Tension Dise

4885 Treadle complete

10106 Needle Bar Thread Retainer Disc

10107 Needle Bar Thread Retainer Spring

10148 Tension Spring

17547 Tension(looper, right hand) Thread Guide

19044 Welt Guide Holder Screw Washpr

3656:3 Oiler (copper plated)

40247 Needle Bar Connecting Link Hing« 1'11I

42001 Balance Wheel with 424 and 1354

42003 Cloth Plate Extension (lower)

-35-

Nos. Description42005 Cloth Plate Lock Spring42007 Feed (front) Bar Hinge Pin42008 Feed (front) Connecting Rod42011 Feed (front) Eccentrlc42012 Feed (front) Lifting Eccentric42013 Feed (front) Lifting Eccentric Coñnection42014 Feed (front) Regulator42015 Feed (front) Regulator Connection42016 Feed (front) Regulator Hinge Stud42017 Feed (front) Regulator Indicator'42018 Feed (front) Regulator Indicator Plate42021 Feed (front) Bock Shaft Crank with 15742023 Frame Rotary Shaft42024 Frame Rotary Shaft Bushiug (front)42025 Frame Rotary Shaft Crank with 1259,1375.42026 Frame Rotary Shaft Flanged Bushing (back)

42027 Frame Side Cover (left)42028 Frame Side Cover (right) hinged42029 Frame Top Cover42030 Frame Top Cover Extension42035 Knife (movable) Holder42037 Knife (movable) Holder Cap42038 Knife (movable) Holder Guide42039 Knife (movable) Holder Guide Plate42040 Knife (movable) Holder Screw Extension Pin

-36-

~ Description-42041 Knife (movable) Holder Spring42042 Knife (rnovable) Lever4204:1 Knife (movable) Lever Connection

42045 Knife(movable)Lever Hinge Stud and Presser Lever

Hinge Stud4204fl Kni[(' (s1.a1.ionary)with 4204942048 Knife (stationary) Clamping Stud42051 Looper (left hand) Lever42052 Looper (left hand) Lever Connection Link420fi:¡ Looper (left hand) Lever Hinge S1.\lO42054 Needle Bar42055 Needle Bar Connecting Link42057 Needle Bar Connecting Rod42061 Needle Bar Connecting Bracket42066 Needle Guar420()9 Presser Lever

42070 Presser Lever Lift.er

42071 Presser Lever Spring42072 Spreader

42073 Looper (right hand) and Spreader Lever

42074 Looper (right hand) and Spreader Lever Ball Stud,

Ncelle Bar Crank(back)Ball Stud420711 Loopcr(right hand) and Spreader Lever Conneetion

-37-

Nos. Description Nos. Description

42071 Looper (right hand) and Spreader Lever Connection 42112 Knife (movable) Gib

Guide, Needle Bar Connecting Rod Guide 42114 Looper (left hand)42115 Needle Bar Thread Retainer Bracket

42078 Looper (right hand) and Spreader Lever Hinge Pin42127 Thread (looper, right hand) Take-up

42079 Feed (front ) Rock Shaft Hinge Pin Bushing, Looper 42130 Lifting Lever(right hand) and Spreader Lever Hinge Pin Bushing 42131 Lifting Lever Bracket

42082 Tension (needle thread) Thread Guide, 42132 Lifting Lever Spring

42083 Thread (looper.Ieít hand)Eyelt 42145 Cloth Plate for 42146

42084 Thread (looper.Ieít hand)Tube 42147 Feed (back) Bar

42086 Machine Base With three wood screws 42148 Feed (back) Connecting Link

42089 Wrench for 1324,1374 and 1629(acessories) 42149 Feed (back) Dog

42093 Thread (looper, right hand)Staple 42150 Feed (back) Regulator

42096 Thread (needle) Eyelet 42151 Feed (front) Bar

42098 Feed (front ) Rock Shaft Pin 42153 Feed (front) Eccentric Cover

42101 Frame Side Cover (right) Lock Spring 42154 Feed (front) Rock Shaft42162 Thread (needle) Take-up

42102 Frame Top Cover Extension Holder42166 Looper (right hand)

42103 Needle Bar Crank (back)42182 Feed (íront) Dog

42104 Needle bar Crank (Iront) 42184 Presser Foot Chaining -off Fínger42105 Needle bar Crank Shaft 42185 Presser Foot (spring hinged) complete42106 Looper (right hand) and Spreader Lever Connection 42186 Throat Plate for 42149 and 42184

Oil Tube and Bracket 42188 Welt Guide (hinged)42108 Cloth Plate Extensioní upper) 42189 Welt Guide Holder

42111 Knife (rnovable) 42253 Needle Bar Bushing for 4225122539 Spool Stand complete

- 38 - -39-

~-;- .s # .ft i:

1 Nt 14- ~ 1 ( .R )

2 )m -k ( ¡;*;] ~fit!}];fJt.)m ) 1 ( t- )

3 ;tJt. 4t (GN x 1~ ) in ( t. )4 ?f ~ 4tt 1 (.re,)

5 -~~A (f:i5x5 50 x 3 ) ~l(.re,)

6 -*- *., ir 6 (.R )

7 ,j, ~ 4- 1 (.R )

7.Accessories and Spare PartsNo. Deseription Amount

1 Accessories box one peso

2 Oiler, filled with sewing machine oil one peso

3 Needle, type GN x ] ten peso

4 Threading tweezer one peso

5 Screw drivers, flat head. one peso50 x 3 one peso65 x 5

6 Woodscrews six peso

7 Wrench. small one peso

-40-