Kenmore 3401991180 User Manual ELECTRONIC SEWING MACHINE Manuals And Guides L9080185

KENMORE Mechanical Sewing Manual L9080185 KENMORE Mechanical Sewing Owner's Manual, KENMORE Mechanical Sewing installation guides

User Manual: Kenmore 3401991180 3401991180 KENMORE ELECTRONIC SEWING MACHINE - Manuals and Guides View the owners manual for your KENMORE ELECTRONIC SEWING MACHINE #3401991180. Home:Laundry & Garment Care Parts:Kenmore Parts:Kenmore ELECTRONIC SEWING MACHINE Manual

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3_.6

Reed lc b r,,,,{,
_
,%kt pp_d ._t I t ('lit';
I'pper
thread
break,.+
andl(ir
hook Jar',.
l{obbin lhri.0d
brt.aks
Io(.+.l. stit(I,e_,
or puckering
ill,t'_
/lOt st ratght-,it
t t i h properly
[i,,el; ni_t knot
_+tltibt'+% properl)
ll(.t.s tl(}t zlgvng-slttch
propirly
'iPbb|ll
thri,ad
d,,ts not wind plt,perly
|'el'd

dot

I

l.,llgilgelIll..nt

Poor

let.ding

add

Of

f+'brie

not

rtln

do(,l,

P!acl, lne
P:.l'blne
Hacblne

(h+e._#,mt hallo
do(_ not laake buttonhole.',
rum_ without
d(.pres_trg

htllb_

do

)_¢t

turn

SCRIP"

Top thread
tensio,
collie(}]
Needle
+lad ._lluttlc
area
Netdlc
tilnlng
and clearance
to hook
Needh'
bar lieight
and orientation
Bobbin
case bolder
to .qtop clearance
Needle
poqttion
at _trafght
stitching.
Zigzag
width
and timing
Needle
bar support
Shuttle
hook and gear
replacement
Fabric
feed mechanists
Needle
tiinleg
to feed
Feed dog height
ant
conteripg
Zero feed and pt4tch
length
l-eed dog engagement
and dlst.ngagenent
l_| Bt'e l llineous
Bobbin
winder
and clutch
Buttonhole
mechantm_

SE('T I 0,'_ 4

rilt_:

change,;
st,,tP_tnp,

",'lh 9

/|gzag
FPid t_

i,nl)

In

stitch

}€lni_lfl

I

31%11
3B.12
3P.l'l
{B,I4

/|lv!.o.lrd

dl+l.', i('t

I rn

plil+l

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<,l%qll

_ I t | fin,

diitiir_.llt

,_Tiudle
sWi

work

::lftcl'

:,l_d

Suddlp

3B.IP.

f, roperl_
toot
control

il,+iil-llvl.

1,1.

Speed prol.il.rl_
oi iil¢(irlc.i1
r"t,l{ r
Ha_binv epelatt ..,|'ut .us o_ |.,tl,hulb,.
r_maln dead
Nol_;y vihr.t|on_
fri.P nrvdh
bar ,.r teed
tJl,Jt.
_ht.n tlil,',' .re
.,rl,iil,t I rll_ Jr +¢mtr,il

leqtltrl,

ASD BEPI.ACF$_ENTS

Presser foot
height
and position
Replacement
of belts
Adjusting
potent
tometers
Hotor
repair
or replacement
C'lble
connector
positioning

{

(|,iwiir-i,i,

renperd, ted's :,Pit dl-pl,i_ r+..r,,It+ ,,It)
Illily
c('rl.lhl
_t it('b
pain
rn_ bi'il_!'
,+,_.l+

po

on

Hotor
:,peed
._elettlon
doe_ not
Reyt, oard
doe_ m,t work properly

Hlicil]'!l'

h,t.,lly "pill'
.,r,
d,.,id)

;'

bulbs

_lB.8

dJPengugeffl(.,nt

._aCll_lle

Till

IP,.7

'.e_¢h"

b;ir

1_

hi

.llt(tl

or

,ewillg

|..lil:lh
or _.'ldlh
Will.
%',lril,ll+
plttl'/ll
one (llilrllim
;iii+| I.t_l,
r.i<.

(1'_'1'11 I_'|lln
let,

dll

politti_.t(d

%l.]l.(lli!

p.!ltl.il.

'_'¢llllt

W
.ill

oa

,.lit

,.|.ll.

i.l

it,

llp

._lathlnl,

Wit|eel
toot
el,nice}
hi It,,, pr,' .,,'
proli'l+.,71_
It,p7,,r butt,mbt,le_
gequlrtd adJu._tment_ wi,,'nevt
r h,gh l,,,ird,.r { !,, +.!
1.(,op board
t.q replaced.
}I'OI

rllS_

tontro]

BOARDI AYt'I'r._ AND _','IRINI; DIAl,RAIl

',1Lf 101,1
1

340,19_1

|_0
Double needle hmit Key hmlts stitch w=dth to mac,mum _llh_w
able for double tleedle (5 ram)

.

I,.Ifi,loA}(lJ I Oflt.l lUllS
llllltlN|tU,
I', A BRItl i}[SiwlPTlON Ot
[Al.II Klf ()N ll!l KIYBOARD 51t(;41flt, ll_,
LO(.ATION, IOLNflfI(.ATIOI'I
AridfONCflOI;.

Single patteln Key programs mach,ne
tar. is completed

.

to stop after a smgl_ pat.

Pattern'Ddd Key permits addltmn of a second shtch pattern to
one selected previously. Pern.ts two patterns to he sewn al.
ter.ately
Pattern lenotn modzher Key: touching permits change m pattern
lungtl_"(up to 9/! ram) wmthout atfechng stiIch lemlth

s E_

Is DIgltsl
toad OUt

display

Backtacking Key. when tou(.hed machine will m,_k,: three for.
ward. throe backward stitches and then heg_:r straight stitching

--i t'''lu-,:;I--'',.°°°'°-"

e ZJg.Zsg stitch
Key

"40 I

i

IO Revtrse

; • -- --

II Single pattern
key

_1_

--

....

linch

$1 StitCh len9th

',

"1 Reverse Stitch Key' machine will

key Is touched.
L_L_J

:1 Snh h width
moddser key

4 Uouble needle
Im.t key

ssw In reverse as long as

key

Stitch length modifier
change.

modifier

key: touching permttu stitch length

12.

Stralgh Stitch key: programmed

to 2 5 mm stdch length

t3.

Confirm Program key. touched to show acceptance of program
any time the d=gltal read.out Is changed.

balancekey
.i

i
e P41ttllrrl

Idd key

i
7 Pdtt_rlt

len_lth

,,.AA Digital

Plead.out change key:
St,tch length or width change the two keys on the left ( ÷ ).
(_) chanqe read-out rapidly
The two keys on the right ( 4- ), (--) change read out slowly

moddler

NOTE. Stitch length and width readouts

always shaw i decimal point

PATTERN SELECTION fh,_ two left keys I + ) & (--)

,%

_.h,_.!le of raver.

f4 Olgltsl reed OUtchangekeys

t
t lOWER
"ON"
In(JlcMor

Reverse sbtcl, Balance Key. touching permits
se _titch balance

control Ihe h,lt number

tn the r,:ad out
The two ,right keys ( 4. ) & (--)
ber m the read out

Power ON Indicator: Glows when Power It "ON"

NOTE. Pattern numbers do not Mtuw a decimal point

15.
Zig-Zig Stitch Key: Pre.programmed to 2 mm length, 5 mm width

Stitch width modifier Key: touching permits stitch width change

cant,el th. l,ght num-

DIGITAL READ OUT displays numbms
stitch p,lth,rn selected or to the length
re, the sele(.tcd btdch pattern

corresponding to the
or w*dlh programmed

NOTL Out tit(; D_gzl.tl read out display, stdch sewings show a
decllnal p(rmt, pattern 5eli ctloe ,_.how no de,.'illlal point

SU.,T 1ON I

340.1991180

PRL,GRAF141NG _EQUEr4CE
UTILITY STRETCH, SATIN ,%TtTCHES.

MONOGRAMS

TIIE FOLLOWING CHARTS PROVIDE A BRIEF
EXPLAINAIION OI THE STEPS REQUIRED TO
PROPERLY ENTER A PARTICULAR STITCH OR
PATTE_I. TO OBTAIN THE STITCH SHOWN
IN THE LEFT HAND COLUMN TOUCH KEYS IN
THE ORDER SHOWN UNDER STEPS I THROUGH
5 BEFORE PRESSING Oh FOOT COrlTROI..

STEP
5

SlfP

I

STEP
6

SttP
,'

+-+"+
-il

Any numbered pattern
shown in machine cover

as memorized

Same pattern

But wider

_,

j

-?-1
Same pattern

But narrower

Same pattern

But wider 8, longer

_,"_]

Same pattern

But narrower &
shorter

r-T-_

Satin stitq_ea

Elongated. same
st,tch dens|ty

Any numbered pattern

S,ngle pattern or
monogram

Two lettera or patterns
continuously alternating

To be selected In
,-"
same pattero
group as shown In __.
machine cover
i

i

j

MACHINE PROGRAMMING
UTILII_ ,SIITi ICII ;';AII'I
StilL;HIS
MO,,t_,)L flAMS

Stt,llqht

Straight

.............

.

]VV_V_

Stdt:h
Ic.gth

memorized
12 5 ITIql)

Longer stnches
(up to 6 ram)

Straight

Shorter stitches
(down to I ram]

Zlg-Za_

As memorized

Zig Zag

ZIg-Zag

+,,?,l+,+P+..

tSTITGI! VARIATION

Wider th_o memorized

Wider & longer

--

o

Zig-Zag

_._i

UTILITY STRETCH, SATIN STITCHES.
MONOGRAMS __

Aa

Single pattern

Two monograml (or
monogrlm and period)

L_

I OKI

Clear

31EP

STEP
t

nn

_,

2

51EP
3

STEP
4

S'{EP'
5

!0KI

I$I

,,

14"1

Vv
\'/'V
-°_ AA --+--

tmemor,z+.,dth

Narrower

AA

IWId,,

Buttonholes"
ZIg-Zag

F _

I

Buttonholes"
/_/_VVVVV_NV_

AA

Narrower & shorter
• NOTE: MKhlmi will w
hole Issln,

llfl_ly

toich_J

lwI

r.o_piete
kly,

liill, wllio|e, thin

it Itogl

litlmlt_lilly

ill

flii(I to t_l¢h _._

I| yml wlm_ to llW

IImwI

341 InllU

SECTION
2
CHECKPOINTS

tIS THREADTEKSIONBALANCED
c.,c,,.o,,,.
BETWEENTOPAND
BOBBIN?

Pa_I

q,ervire

lerords

indicate

thai

rustonlers

sometimes

do not

follow

or nusmterpzet

instructions

fn 1he Ovw1ef's Manual

?t_feadrngthe rnarhlne and balancing thread tension are commonly rmsunderstood

NO

Usually |faience of thread tension is arhteved by
adlushn9 the fop thread tenssoucontrol if bobbin
thread tPnsionodlnstmentis alsoneeded seeSector
5C

{_'orr proce,z,
dmq with trotlhieshuotingchaff, refer In importantnrfmmation m Section_- -General MamfenarhceUsersand
'rPfhnirlau$ shu.ld mtdelstand the baser pools covered m this section

Tripfollowingtheir will helpyou delernnnewhetherthe marhme needsfurlhoradlustment
COMPLAINTS RELATING TO STITCHING
PERFORMANCE

-

NO

Reptare with
properly

reflect needle or remserl needle

YES

IS THE TOP 71-1REAOING
CORRFCT?
NO - Cnnec! top threadmg

Y[S

IS THE BOBBINCASETHREADED
CORRECTLY
?
NO -

Correcthohbm case threadmg

NO
Make sure
• Only Konmore needle is used
• Needle is correct size for thread nod tah.c/see
Sect,on 58)
• Bent or blunt needle ts fief used
• Needle Js securely clamped vath screw
• Bastmg usmg shtch program37 requires special
baslmg needle

Re/eL to $octmn bA
Make sure
• Thread passes between the thread tension discs
• Thread is not tangled
• Thread tensioncontrol ts functtomngproperly(see
Sectron 2C I!

Refer to Sec_on 5A
Make sum
• Bobbm thread ts under tensqortsprmu
• Bebbm }s mstalled to rotate counterclockwiseas
thread is pulled

YES

t
tS THEPRESSER
FOOTPRESSURE
REGULATOR
SET
CORRECTLY?
NO

Refer to Sectmn 5E
Make sure pressureknob ts
• Set for taore pressure with hghtwetght fabrrc
• Set lot less pressure with heaw fahrfc

Correct the seftmg

YES

t

DOESTHE PRESSERFOOT SUIT THE TYPE OF
STITCHING?
NO

t

WAS STITCHPROGRAM
ENT}REOCORRECTLY"

A_k Ihe rustamer to sew ns ordnl to duphcate the
t)rohipru end rherk the following pomts as she/he
%ews

IS THF CORRECTNEEDLE PROPERLY USED ANO
INSERTED
?

YES

Refer to Sectron 5E

Replace the presser foot with su_table one (see
tnslftrchonsm Owners Manual)

Try t r enter selected program followmg _lh._uer
s
Mental mstrucftons step by step

YES

Check the lolfowmglist for section whichcorresponds
_vzth customer'scomplaint

COMPLAINT

SECTION

Needle breaks .............

2B 1

Skipped stdches ...............

2B 2

Top thread breakmgand/or lammmcJof hook . . .

2B 3

8obbm thread breakmg .............

2B 4

Looseshtchesor puckering .....

2B 5

Does not straight stitch properly ......

2B6

Does not knot shfches properly .......

_}07

Does net z.gzagpfopelly

............

2R 8

Does not word bobhmsproperly .....

2B9

Disengagementand engagementof feedmg ......

2B 10

Poorfeed of fabric ..............

2B 11

Machme does not run

................

2B 12

.............

20 13

Machme does not baste

Pool buttonholing ..............

2B 14

MKhme sews without foot control bemg pressed ....

28 1,_

Lightsremora oft ..................

2B 16

Motor speed selectiondoes not work .........

2B 17

Faulty keyboard ..................

28 18

YE_

t
AREALLCONTROLS
SETCORRECTLY?
NO -

YES

Correctoil the sottmgs

Makesure
• Bebbmwinderlever is properlypositioned
• Feed dogcontrolleveris properlypos0honed

lffl t8
rmouILt$#Oor_

t#
2U t

2t I

IlttOLF IRt4K$

.1140Ittl l #8
NEtOLEIltt41r$

USER HINTS
TROUBLESHOOTING
IN MECHANICALAREA

Adv,seuser to follow m,_tr_rftnns Getl,oq Readyto Sew ,n Owlet s Manna! tre(pleul .ladle break,.q,_a+eotle_.,a_JSe(1
l_v
lhe laL'r thal tlser is strll uolanilhar w_!h Se_,mq

Pqlhngor pushingthe fabric byband agamsl machine leedmg aChnn_ll makethe needlebend A bent needlewdl contacl and
rmr dammJethe needle plate or hook resulting in oeedle breakage
IS NfEOIE STRIKINGNEEOLEPLATEOR SCRAPING
EDGE OF THE NEEDLEHOLE?
ti S -

Needle posihOlris not rorfecf See Settmns 2C24 &
_'C2_, for adlu_lmen!

Sel machznefor straightstdchJng Use straight shlcb
needle plate

NO
ADVISE CUSTOMERABOUT FOLLOWING DONT S
1

Oon'l pull or push fabric while s_wlng rumply 9rode *I

2

Dont leave needle plate and presser IDol for sltazghl sf,lchmg while prnqrammmr!any ,ngtac]_t,trh pafleru

Remove both needle plale and cover plate

3

Oon'l fry to use worn.ool needles replace lhem regularly

Checkthat bobbincase Is properlyfastenedbyholder.
Wllh eno.gh play fell between case and holder See
Sechon 2C23

4

Don't use high speed when sewing thzck fabrics

IS NEEOLI:HITTING HOOK OR DOBBINCASE?
YES -

g needle clearance In hook ,s taro or 1oo bllle
Se_tmn 2C2 ! for adluShnent

see

NO

+
IS HOOK/BOBBIN CASEAREACLEAROFTHREADOR
liNTY
NO -

Refer to Sectmn 2B3 "Top Thread Breaking or
Jamming tit Hook" Also refer fo Sechon 5D
ANO THE FOLLOWING' DO S

YES

IS THETIMINGBETWEEN
NEEDLE
VERTICAL
MOTION
ANDZIGZAGBIGHTCORRECT?
NO

--Set correcl Imlmg

Refer to Section 2C25

YES

I

Elseneedlesaccordingto inslruchonsm Owner'sManual When using doubleneedle always pre_sdoubleneedle key on
keyboard Io bou! zzgZa9_dlh

2

Always use presser feel as mdzceled m Owner's Marmot

3

Select needle accmdmg to Owners Manual

4

Always draw approximately4 inches ol bolh lop and bobbinthreadto lhe rear of the machine beforeplaLmqIlle fabric

5

Checklhal surface cf the paris along the lhtead path are smoolh Damaged scralchedor roughsurfaceson paris along
the thread pelh. _nll weaken thread resullmg m thread _reokmg and/m shntlle hook ]amnunq

IS THE TIMING BETWEENVERTICALMOTION AND
FEED CORRECT?
NU -

Sel correcl

liming

Refer to Section 2C3 1

IMPORTANT:

If machiM ts elf wflk lalilic redes pressesfeet. chick feel needle pesdHm,befwa smtclMql die mackae

n If mmeeisdw.. werc,q_e eeb,€,mm I,oFdw_ethpward
yevle raiseMedlklWhian_dlklisevfoffakrg,o1tsIN
fil_ll

_I

ewl_h

mg_ee

M

Tee

gqH_

daln4qll

lhi

11414141141
M

|illli¢

by _

feNevnq Ibl

111111111;11141

I_ TH| PJittllf
IAKrll. _
NfI

-

%l_'f _,UIfAHIf _Or THrFAt) 4iqf)
IS THE HOOK TiP SHARP AND _MO(JTH?

.%pw.zq _helr tat..
_dh .eedtr ,.It lalqer lha.
may razz_0, i.urk_,rmq SPIPrf _.udah_e q,lle ftecdle
fit1, fahl,
refer In SPIh,,/I _8

1;)
Idr

I| lil$lOnler iS havmrj pt'oblem$ with $lfefch fabfK
_,liqqest use of 0 Needle TM Wdh this sperlal needle
wr fernmnlrnd .':,e of the rnnlplefely flat sole presser
foot I,Jlated ii1 the mar.bloc 5 arcesso.es
tray

NO-

Replace hool_ P_,ier to ,T_,(hmt2r27

YES

YES
IS HOOX3 PIVOT ProPERLY POSITIONrO Af 45 ?
fCheck with _jaz_geand too!l

iS THL NEEDLE CLEAHANC! TEl SHUTP.E IIOOK
CORRECT
?

NO - Refer to Sectmn 2£2 for adj.stment
NO-

Chrrl, rlearanre
wzth proper tools and qau!jes
rleafalifn
adle_sfment lefer In St,felon .7_'_ I

('of

YES

YES

t
IS NlfDII
NO -

IS NEEOL| BAR CORRECTLYORIENTED
? IChetk wdh
Oan_zel

HHGHT CORRECT?

NO - Refer to $ectmn 2C22

Cheek with propel qauqe Refer to Se_fmn 2C22
Relpt to ._;e,rtmn 2¢22
for adj.smlenf

for adl,,stment

YES
YES
ARE YOU GETTING SKIPPED STITCHES WH|N
SEWING WITH MAXIMUM WIDTH STITCHES 18
MILLIMETERi
?

IS NEEDLL TIMING TO SHUTTI| HOOK CORRECT?
NO -

YIS

Chef k ruth fro.no qa.rjes
adl*tstnlent

Refer to Sect/on 2C21

for

NO YES

Check that mKhioe rs not st=tchmg at width larriet
than 8 mm Relet to Sectmn 2C25
for th,,
odlustmenl

IS UPPERTHREADTAUTENOUGH
WHENTHENfEOIE
EYEIS OOWNTO NEEDLE
PLATE
S lEVEl?
NO - Beforeloweringneedle, pike remnant of sheerflbrJc
underpresser IDol, tolate h_dwhanl to brrngneedle
eye down to needle plato level Verify theethe theck
=pnng Js fur,chonmgcorrectly Refer In Sechon 2C I
for edlustmenft

I', lll'Pllr

TIkl%iUl_l LI]RNFCTIY

I_,

_I'T _

1'HL HOBfll!l

P/)_'.,illOkl|l)
BOTH SMAll
NIl

(,el

If.troll

floqi,N_l

HelF_

|rl

_'tl{lllll

|J_f

Hi!Ill,

IATfFI

Ph(]PlHiY

ANI) I'% t1" PHiIF'IHIV TIGHILNL!) HY
LATLNf_ (IF THE 5PNPoG HOIr_fH"

i_,

NO -

Yf5

Properly ,ese! leith

YES
IS GOODQIIAIITY THREt_OuSED_'
ARE NEEDLEHEIGHT.NEEDLETIMING TO SHUTTLE
HOOK CLEARANCEBETWEEN BOBBIN CASE AND
LATCH CORRECT_

NO " Some poor quahfy threads on The matleel are not
,_,fJlable for machine _ewinrj Use good qoahly Ihfead
_urh as _olfon wrapped polyesler

NO-

YeS

t

Reler to Se_hon_ 2C21
adluslme_ts

2C22

#nd 2C23

for

,S TOP THRFAO TANGLING ON PART,_ALONG THE
IF,READ PAtH_
YF5 .-Che_k needle spool pros thread qo,de$ fensaon
ass-mhly err Relhread ma(h,ne

NO

IlO ANY PARTS ALONGTHHEAOPATH HAVEROUGH
SURFACE3 OR ARE ANY DAMAG[D_

USER HINTS

Y|_, - [.he(It thread _zJides fensron ronfrol lhlead lake up
low; t_eedle eve presser loot Doodle hole needle
plate
_olary
Ilef e_%afy

,_huflle hook

eft

Replace

pMf'_

threads to the rear ol the mazhme before pla_,nq The1,abe,(

if

Use proper needle z((mdmzj |o kendof fable( add rfl_ea_l

NI)

15 THI TIP OF THE SHU_'IE HOOK SHARP AND
SMOOTH7
NO - Heplare

,,bottle

hook R_,fer to Se_tmn 2C27

YES

IS LIPJT OR BROKEN THREAD ACCUMULATED IN
5HLI_IE HOOK OR FEED OOG AR(A?

YES- Clean sh,rtflehook and feed dog areas Refer to
Sectmn5D
NO

Lm1,oqbrokenthread m these areas ml! delay laming
ol fhfe_l escape from shottlehook resulhngm thread
breaking

IS TENSIONOtt TOPTHREADAND BOBOINTHREAD
BALANCED?

DO ANY PARIS AtOtifi THREADPATH HAVEROUGH
SURFACESOR ARE ANY DAMAGED?
YES - Replere damuqed parts

CheEksmoOlll+lessoi hohhmcase ions,offspfmg god
thread path along hohbm Ease and needle plate

NO

NO - Adfusl iensmn of lop ffwead and of bol_', thread to
obiam good Balance Refer Io ..eectron5C

Loose shith#$ otcvr whelr top thread
loose Of bobbin thread i+ too tight

teusiolz Is tPt3

YES
IS BOBBINCASE PROPERLYTHflfADEB?

NO-

Remseri hobhm rose

YES

IS NEEDLETiP DAMAGED?
Check thai bobbin rotates tountlrcl_kw_se whdl
ih, ead rs pulled Check that thread posses under
hohhm (ase tension swing

i,

IS NEEDLE
SIZESUITABLE
FORTHREAD
ANDFABRIC
?
Damaged bobbin or bohbm case ell
smooth feeder of thread

enlerfere _lh

NO

Select sudable smzeneedle foe the fabric Refer to
Sechon 58

Sewer sheer fabt.r '_,th needle site larger fhaJI I0
may _ausn puckering

t

IS TENSIONOF BOBBIN CASE SPRING CORRECT
?

I_ UPPERTHREADPROPERLY
THREADED
BETWEEN
TENSIONDISCS?

Re_et tensmn refer to 5cotton _C
NO - Do upper tlweadmg ruth presser fool hired so thai
tone,on d_scsare open

YES

i,

YES

IS BOBWNTHREADEVENLYWOUNDON BOBBIN
?
NO-

NO-

YES

+
N(I.

NO

t

IS BOBBINENtIRElY ERE| TO ROTATEINSIDECASE?
YES - Replete damaqed part

YES- RepUte needle

Rewind the hubhm thread

R thread ,s not evenly wound on bobbm n ell
oovwnd smoothly

not

IS PRESSURE
ONPRESSER
FOOTCORRECT?
NO * Sll IXess_e knob on posmon 3 for normal sarong.
,i_relse preservefor h_lf fl_l(;,
decrease,t for thick
IOB.€

YES
IS CHECKSPRINGEUNCTIONING
PROPERLY!
NO- Replace tansies group Refer io $e+hon 2C !

Check smooth movemeni
limes mlh finger

of check

spring

several

YES

ARETENSIONDISCSWORKINGPROPERLY
?
NO-

YES

t

Replace tonsron group Refer to Section 2C I

Threadmachine from spoolio take up lever ond check
the r thread flows heely between iensmn (kscs when
pfessln font la raised, v_lo €Oqre¢ituns,,Jnis made
on El#earlwhen i_esar foot is lowered Ch_:kto see
11111frt¢iion on llwod loTrtaste w_n fellllOfl kl_ll IS
roilted IO_nud h_mr vl_oos

tltl

_, FIM IN
lOOSE Srlrcltl# ORI_UCItfAIII_

218

ARESTITCHES
IN STRAIGHT
SEAM AIIGNID')

IS UPPERTENSION KNOBPROPERLYPOSITIONED')
NO - OlrrulSe lenstoov_u semn_ hghff,'Ibf_(',n(ruasu II
when se_
on heew lebuc

.11411.
l lfl IN
IIMEBUI4R SrlMIG_Ir #1?PCHIII8

Correct

tension lot general

_ewsng it,

3'

selling

NO

yfS

YES

IS NEEDLE
BARPROOUCING
NOISYVIBRATION,
_

i

iS |||[100G

NO

H[IGH? CORRECT?

NO - Refer Io Section 2C32

'fES o Helot+oSeth+,. 3117

t

Io# adluslmenf

Ir_co.eClle_.d dog height wall cause poor fuedm9 or
loose sf,tche_ Checkheight of feed dog wtlh gauge

IS PRESSER
_OOTPRESS3R[PROPERTY
SET')

YES

YES

NO

N

_ is l'e

proper 5prhr'9 ln_ t_e_ve,
r,41 _e_+,,l_)

L..

fW,#,c

IS f!MING BEIWEfN NEEDLEAND FEED CORRECT')
NO - To cherk it

Adlust pressure
|lnsufhcJent
pressure may a,!aw

refer lo Sect+on2C31

!ttegtdar

feed,':l o!

IS PROPERSIZE OF NEEDLEBEINGUSEO?

To adlUSl hmmg ruler to Seclmn 2C3 1

YES

NO

II us_r;I thinP_edles un fabric.'+woven w,lb _,rk
ib;tacit seam may sho_ irreg,dar stitches
St!loci +lt'ed.+stall nellie ol ptope, s,/e
Refer 1o S:.£hon 5_

SERVICEHINTS
I

Sheer ur elashc fabrics tend to cauSe pucker,ng To avoedthts. recommendtissue piper under liver for sewslg such
fibres

2

every sewmg me,:hmeis Idfusled el 1111factory to producebesl sevmngm Ihe most frequwllly ugd shlch veo'lhsI_1
lenglhs Apperenf loose fenswn _en sewmg m_sl shtch v+sdthGod longestsldch length should nol _ cons,lemd I
mechamcal problem

DO YOUFIND EXCESSIVE
PLAYIN THEKINEMATIC
CHAIN OF MECHANISMS CONNECTING)'HE
ACTUATOR
WITH NEEDLE
BARS

YES • Ruler 1oSe:t,on2C26
IS NEEOLE
POSITIONED
TOWAROLEFTORNIGHTOF
THENEEDLEHOLEBOREDiN NEEDLEPLATE')
YES " Cl_tck Imtl it e#eseuvy reld_Ce lusts ot close loop
boarOs See S_hon 2C47 Check thiS cr,,,ant_lorss
will plugged Enid the pelenlJomele¢of mlel_e bar
Khllt_lt', refer to Sectmn 2_47
If p+obkem
pltusls.
refer to Sectmn 311!0

NO

i
WITH MACHINE SWITCHED ON. BUT NOT
OPERATING.CAN NEEDLE LIAR RE MANUALLY
F'USNEOTO LEFT OR RIGHT, WITHOUT A_Y
RESISTANCE+/
YES - Check that €o_neclor betw_n needle bw dictualor
ifltJ dose loop bo_'d is properly connected lit both
ends Refer to Sectmn 2C47 If negllive, refer to
SectPen30 !0

NO

AN| _PR!! THH[AOAlP l_JIl_t_tIHIq|AD PATH)
C_IC_q(
_l{Y ldtl OWlOf

Wllt! l!lOIt
fLAIl IqlgllOltfO loll SIUAIGHI
ShTCItltlGt,_IItAU 10010 lqllllllOW! ,._ NIIOII
POINTCORIqftli'f CIPJIIRIUovtl_ PlAit HOLt+

_det

Io .£e(/,,_o ,_A

vls

SMOOTHLY
_

HINTS FORUSER
Au,OO,J
fhO a! _'_s_otJl-, ol you' irlilchvlz_you flr,d the !_e_al qlramght
lhllh l_e_l$1trIoo! Ifh_ o_ wdh I sf_lll h_e _dlpd rn_t
above,Ihe prL._,te_'Iool IDyll 1o h! os!_ vdlen Sl_nn_ she!l lfretr:h II_l._

NO - C;_k I1_tIr*oper s,ze of spool_s( zt be ,_ _,_ed arid
Inl! IhK e_je i'_ smoofh Ill II011_14

vl$

I
ARt IOlX UPPER AND BOBBIN TEN,_IUN3
BALANCID_

Needle plale shooedhe pos_:_onedwvththe, small round hole Ira"sltazOhts'_lchdlg

NO

o Reche,'k and hell,re

fensrxms N,pIer fo Se'_.honz _E

e_d _C

YES
IS CLtARANCfBtI'WItN LATCHANDB_lflBl_CASt
COkRECP
NO " Refer to Sech_ _'23

to_ ._dluslment

If rle_,l_re
e$ Ioo ridge teppe: Ihce,ad [a_rlot _e lpl_
_gglhll
Illlgl_ll
tnol_ mi t lppelr _n I_e_ s_rfe,ol

YES

I
AN| SiJfl_ACtS Of UPPCRPARTCF BOBC'NCA5|
AN9 OF BOBBINSMOGTNt
NO - Smooth lorfli_e 0_ plrlt. O_repll(!

ro%_. l_rls

yES

I
IS THE CHECK_
OF THE TAr,t.UP tt_R
GROUPPRO_M.'t PUKING BACKUP THltEAIP
NO - Refer to Sectton ;C I far _,u_t,,or_

AR_ THE SHUI"]'L[ HOOKGROOVE.BOBI_ CASE
SLOT,ANDBQII_ CASEHOq.OEN
CLEANOF DUST
OR LINP
I1_ - _llelu!l I tk_

_

sh_k_ he_ cOmpm_nts

L_ end dust €_e
eKessgme _llnh_, bergen
IId_n cese ira41ho_ so lfla_ lhreK _se_! _ly
fed

This section dills vlnlhpfo_kemsof machine zigceg stitches producingip(o.ect or deformed patterns of _n,_ulf_Jentz_gtag
vwdlh

SERVICEHINTS
Vzieelionin st_fch knottingmay be caused by mKhma being run at uneven speed
Uppertension, when oewm9ruth slrelch stitches shouldbe set el h,ghervalue thanwhen sewingthe utdlty stitches, especially
whennrechme cs being tun at top speed

WHENMACHINEISTURNED
OFF.ISSIDEMOVEMENT
OF NEEDLEBARSMOOTHAND EASY?
NO

Checkk_nemahcchain of roach"rosins ffam needleher
KIuIIOf In needle bar. be sine no part ,s damaged
Checkthat megeetlc field created by actuatorhas not
attracted metall_ perhclas

Refer to So, hen 2C26

YES

TURN MACHINE ON AND PROGRAMZIGZAG
STITCHING IF YOU ROTATE HANOWHEEL.IS
MACHINEPERFORMING
ZIGZAGSTITCHING
?
NO -

Check to see that con_¢tor 8o securelyfattened to
crest loop control I_oard Refer to Section 2C47 If
problem shll remains, refer to Section 307 and
3B 10

YES
IS ZIGZAGWIDTHDIFFERENT
FROMTHEONETHAT
HAS BEENPROGRAMMED?
YES - Set zigzagel maximumwidth I_ghtshouldbe from
75 to 78 millimeters,at toast Refer to Sectmn
2C25
NO

IS THE RIGHT PRESSUREON PRESSERFOOT
PROPERLY
SET?
N_ -

Pool pressure causes .regular feeding

YES

WITH ZIGZAGSET AT MAXIMUM WIDTH. TURN
HANDWHEEL
ANO CHECKWHETHERNEEOLEEVER
TOUCHESEDGESOF NEEOLE
PLATEOPENING
YES * Re:or to Section 2C25

NO

for adjustments

Set proper pressure

211

34W.ltlIIN
IIIRIDUIAR IliAD

STITCHIIID

20.1

IS I_IFEDLEPATH CENTEREDALL ALONG NEEDLE
PLATE OPENING. WHEN NEEDLE MOVES OVER
OPENING DRIVEN BY ZIGZAG BIGHT?
NO - Refer Io Secfron 2C25

DOES CLUTCH RELEASEUPPER SHAFT FROM
MOTOR?
NO - Check clutch mechanzam, replace damaged paris
Refer to Sectmn 2C4 1

to" adtustments

YES

YES

t

DOESBOBBINWINDERSHAFTRUNPROPERLY?

DO YOU HEAR MECHANICALRANGINGWHEN
NEEDLESEWSAT MAXIMUMZIGZAGWIDTH?
YES -

ZalO.IHItN
IODIIN TIlllEdDODESIIOT WIND. DI/ WINDS
INPRONRIY

NO - Checkto see d thread*s tangledaround bobbinwinder
shaft Check shape of rubber ring m bobbin winder
assembly rubber material may chamgeshe,,o wulh
age Replace rubber rmg Refer to Section 2C4 1

Check correct posmonmg of actuator Refer toSechon
2€25
Check correct posrttoumg of actuator cod
hn,fmo devices Check Ihat maximum _qgzag vlndth
does not exceed 7 Omm Refer to Sectmns 2C 25 for
adluslments

YES

1

_Jo

IS INITIAL THREADINGOF BOBBINCORRECT?

DOESZIGZAGWIDTHCHANGE
WHENSEWING
SPEED
IS BEINGINCREASED
?
YES - Checkthat machineIsnol runningover I.OOOr p m

NO - Correctmmalthreadingof bobbinReferto Owner's
Manual
Refer to Sectmn 2C45 for adjustment With specael
gauge check zmgzaghmmg phase. Sectron 2C25

NO

YES

IS THREADPROPERLY
WOUNDON BOBBIN?

O0 YOU FIND SUDDENVARIATIONIN STITCHW_DTH
AND/OR LENGTHWHEN ZIGZAG SEWING?
YES - Rule, Io Sectmn 388

NO - A correctly wound bobbin should have a cyhndracal
shape R shape is rather _rregola_.bobbm w,nder
tension disc may need edlustment Refer to Sectmn
2C4!

YES

IS PROPERAMOUNT OF THREADWOUNO ON
BOBBIN
?

SERVICEHINTS
Much,he should not be mn at speed higher than 1.000 shtches/mmote Higher speed would not aXow enough time for
ele_tromechamcalactnat_s to properly puS,hunneedle bar or feed eccentoc rod. resulting m irregular sewing of pattern

NO

- Bobbinwinder mecbentsm automahcaflyslops before
boWamis full Too much thread on hobhm can be a
cause of thread Meglklna m' Inose _,,.:Lhes

AdluSlwinder hm,tmg device Referto Sertmn 2E4 !
for adluslments

WHEN FE(O DOGSARE OiSEf_I.Ar,
EL).ARETHEY
LOWEREO
BELOWTHENEEDLE
PLATE
?
NO " Checkcondlhonsof the lifting springpulhngthe feed
_Q_ mount, hfhng spnng could be unhooked or
broken Check to see that feed dog's teeth are not
leaning against edges of feed dog's windows Check
to see that feed hiring lever has not lumped out of
position Refer to Section 2C34 for repairs

YFS

IS THEFEEDDOGGROUP
SOMETIMES
JUMPINGOUT
OF ENGAGEMENT?
YES - Spring€ontTollmgthe pos_honof the feed hiringlever
may be out of positron,or damaged Replacespring.
refer to Sectron 2C34

NO

O0 YOU FIND THE FEED DOG GROUP HARD TO
ENGAGE?
YES - Checkto see that surfacebetween cyhndncalportion
,_t t[.e.d hftmg lever end the eccentnc shaft is not
•]f,.ied or damaged Checkto see thai feed dogs ere
co,ectly ahgnedwith needleplate windows Refer to
Sections 2C32 and 2C34 fm captors, or part
replacement

IS FEEDDOGLOWERING
LEVER
(LOCATED
IN BOBRIf,_
AREA.TO THE RIGHTSIDE OF SHUTTL[ HOOK)
PROPERLY
POSITIONED
?
NO -

Move lever m the proper pasthon

YES

IS PROPERPRESSUREAPPLiEO ON PRESSERFOOT';
NO * Mare pressurefor hght.wezghted fabric, less pressure
for heavy fabric Refer to Sectmn bE

YES

LINI"ORPIECES
OFBROKEN
THREAD
ACCUMULATEO
IN FEEDDOGSAREA
_
YES - Remove needle plate, clean feed dog area

Lint of piecesof thread accumulatedm feed doq areal
Wig decrease feeding _e shlch lenglh

NO

AREFEEDOOGTEETH
ALIGNED
WITHNEEOLE
PLATE
WINDOWS
?
NO - Checkthat clearance between feed dogs end n_edle
plate opemngsere as rod_caledm Sectmn 2C32

YES

IS HEIGHTOF FEEDGOGTEETHCORRECT?
NO - Incorrectfeed dog hmghl may result in poor feeding
or loose stitches Use ,_eeddogheight gaugeto check
herght Refer to Section 2C32 for adluetmento In
straight stitching, check to sea that maximum sfrtch
length is between 55 and B 0 millimeters For
necessary adlustments, refer 10 Section 2C33

YES

AREFEEDDOGSBELOWNEEDLE
PLATEWHENFVER
NEEDLE
IS IN ITS LOWERPOSITION?
NO - Checkfeedtimingto needlemovement,asperSection
2C3! Resettiming accordingly
YES

1

Correct ahgnmeot accordingly

7# It

,I_.tHI litO
POORF£f#ING OF FABRIC

2#.17

IS FABRICBEINGFED WITHOUTEXCESSIVE
SIDE
DRIFTING?
NO -

Szdednftingis rou_pdbymsufficentaririhonbetween
presserfoe: '.(__. ,rod feed dogs

340.till lifo
MACHINEDOESNOT RUN

Jamming or ftoelmg of mechanicalparis or elacffic componentswill be the main cause of Ih,5 problem
CAUTION: W11ene machine y_ll not run due to mechamzcalIommmg.do not force el to run wsth extra power otherw)se
machine may lose ,Is liming cwnplelely end fad to sew
Replace
dfleven

presser fool

if so_

appears

damaged or

IS BOBRIt;WINDERLEVERDISENGAGEO?

YES

NO - D,sengagelever
IS LENGTHqF SEWEOSTITCHES
DIFFERENT
FROM
KEYBOARD
PROGRAMMED
LENGTH?
YES -

Checkto see thal no part Is stuck in feed kinematic
mechamsmRefer to Seehon 186 Resetstitchlength
control refelrmg to Settmn 2C33

YES

IS CLUTCHWORKINGPROPERLY?
NO -

NO

STITCHINGWITH REVERSE,ARE YOU MAKING
BACKWARD
STITCHES
OF SAMELENGTHASWHEN
STITCHING
FORWARD?
NO -

Referto Sectmn 2C33 for necessaryadlustmeots As
a hnal cheer, enter program26 Ihroughkeyboardand
sew

Cheek clutch components,replace damaged paris.
refemng to Sectmn 2C4 1

YES

DO YOUFEELSTRONG
RESISTANCE
IF YOUTRYTO
MAI_UALLY
ROTATEHANOWHEEL
?
NO

Y£S

YES
IS ANYTHING
TANGLED
IN THEGEARSOF ROTARY
HOOK.OR00 GEARSSHOWDAMAGEDTEETH?

IS MACHINEFEDONLYIN ONEDIRECTION
ANDWITH
MAXIMUMSTITCHLENSTH.EVENWHENDIFFERENT
STITCHPATTERNS
ARE PROGRAMMED?
YES -

NO

Vertfythat connectorhomfeedingacluptortsproperly
pluqgedto close loop board Cheekfusesof closeloop
hoard and replace them if necessary I! problem
persists, refer then to Seclron 3B3

YES -

YES -

O0 SOMESTITCHPATTERNSSEEM TO BESEWINGIN
A STRETCHEDELONGATEOSHAPE?
Cheek to see that no loose tolerances ore to the
imemahe chain of mechanisms hoklng lied lctoitor
vath lead dog. tiler to Section IB$ for Idluslments.
or foe replacmg defacbvo paris Also. see Section
IR tO Check that metallic burrs are not trapped
ms,de acloator magnetic held If you still have
problems,refer to Section 3B4 and 3B8

Clean parts Oil odequalelyonly where youh,d dued
up luhncant Be careh,I that ,o o,I dri.ps Oll PC
boards Refer to Sectmn 2C4/

WAS THE MACHINE DROPPED̀>

NO

YES -

Clutch allows machine to he dr*yenby ele(tru, maim
when bobbin winder Js nol engaged When bobbin
_nde! _s engaged, clutch cuts off upper & lower
machme shafts so that motor dr_ve _s d,re[ted to
bobbin winder group only Isee So(ban IB I

Repastoqreplace damagedparts If the ma,u IfanlP is
bent or broken machme i,, nol e_onomually
repairable

DO BULBSLIGHTUp?
NO *. Replace mum fuse Replace etectrrecord Refer Io
Sectmn 3B t and 3B 2

Cheek to see that machine r5 properly plngqed mfo
wall sockel and that fool control plug es well phJgqed
Into mochifle

YES

IS THE "ON.OFF
OPERATIVE
?

tED SIGNALON KEYBOARD

USER HINTS
Wrih properpresser tool addfeed dogsat the correctheight,the sewmg machineautomaticallyfeedsthe fabric Usermust nGt
pull o_ push fabric against machine's feeding aelron

NO - Replace fuses of close loop board If you st,II have
problems,refer to Sechon 30 ! and 362
YES

Conneclors of eonlrolhng potentmmeter5 of both
needle bar and feeding oetuatms must he securely
connected o foully e,attc Lonnectlonwould cause
fuse. to cut feeders cneuit

J410.1$111110
21112 MACHINEDOESNOT RUN

21.13

ARE THE CORRECTLED'sliT WHEN STRAIGHT OR
ZIGZAGSTITCHING IS PROGRAMMEO?

_kP.I I OI I N
MACHINEl_Of$ KOT IIASrE

IS BASTINGNEEDLE
INSTALLED
ON MACHINE?
NO - Besting on this electronic sownngmachine reqmres
the special needle (the one w,th tt'te golden stem)

NO - Problems ore in the elocfromc cffcoltry, reler to
Secfron 3B I and 382

Install to.err

needle

YES
YES

WAS BASTINGPROGRAM
CORRECTLY
ENTEREO
?
ONCE THE STITCHING PROGRAM HAS BEEN
ENTERED,CAN THE MACHINE SEW AS SOON AS
CONTROLI$ BEING PRESSED
?
NO -

Replacefool control, if machine still does not work,
checkto see that connectorsiommg motor and foot
control to the motor coolrol board are properly
plugged in Refer to Section 2C47 Check to see
whether elecmc motor brushes need replacement.
cbe(.k hrnsh springs Check condmon of motor
commutator

NO - Bastingprogramcodenumberis 37 Try to enter*t
againinto keyboardIf moperat,ve,refer to Sectmn
38 tO
For all thesecheckmgprocedures,
refer tO Sec_on
2C46

YES

t
ARENEEDLE
HEIGHTANDNEEDLE
BAROR:ENTATION
CORRECT'_
NO - CheckwithpropergaugeRefertoSectmn2C22 for
adjustment
YES

t
SERVICEHINT
if motor commutator shows damagedue to escesswesparking,replace motor to avoid secondservicecall To replace motor.
refer to Sectlmr 2C46
If above checks show no result, refer Io Sectron 3B5

ARETIMINGBETWEEN
NEEDLE
ANGSHUTTLE
HOOK
RIGHT?
NO - Checkwith propergauge ReferIn Section2C 2 ! for
adlostmenl
YES

IS CLEARANCE
BETWEENNEEDLEAND SHUTTLE
HOOKCORRECT
?
NO - Check clearance, referring to Section 2C2 !

Adlusl clearance accmdznqty

YES

IS ZIGZAGTIMINGCORRECT?
NO - Checkhmmg veth hmlnggauge, refer to $ectmn
2C25

Reset hmmg as per Sectm,_ 2C2_

YES

IS THE SHUTTLEHOOK TIP SHARP AND SMOOTH?

NO - Replacehook.refer to Sectmn2C27

USER HINTS
Suggest the* user select low speed for basting, it's the best way to nob,evehomercontrol m gusdmofabrfc since basting
program number 37 prov,desextremely fast feeding of machine

2114

J_.Illl
lN
UNSATI$FA_-?'ORVIUTTONHOUNO

21t.15

DOES BUTTONHOL[LOOK PROPFBEYCLOSEDAND
COMPLETE
?

._IO.IH! IN
MACHINE $1W$ WIIWOUT FOOl' COAti'ROt
IIEllBleRESSED

TURNINGTHE MAIN SWITCHON. DOESMACHINE
START SEWING. EVEN IF NO PROGRAMWAS
ENTERED
THROUGHTHE KEYBOARO?

NO - Check to see that machine cnntacl points PrOperly
respond Io hutlonhole foot mohon Refer In Secfmn
2C42

YES " Refer to Sectron 3811

Yfs

NO

ARE BAR TACKS OF THE SAME LENGTH?
NO -Check
to see thai sole ghdes freely along
butlonholers guide, and that sn?e ,s properly
posthonedbelme starting to sew Check to see thai
the sole corre(lly positionedto start bultonhobn9,the
d,slance between sensorlevers and contact points tS
properly set For possible adlustments, refer to
•":;eOron2C 42

USER HINTS
1

Sel speed selector on low spe,:d, we recommend low se_ng speed for better butlonhohng Besure buttonholerfoot rs
properly mounted, refer In Owner's Manual

2

Selectionof holtonholelength and shape shouldbe checkedon remnant of the samematerial overwhzchbuttonholesvail
be later sewn I,n th,s way you ascertain thai feeding stitch length and width are the most suded Io your demand

3

l:eed on some lahr_cssuchas ferry €loth.sheerlabncsand velvet are uneven We suggestto ircreose pressureonpresser
font and to lay t,ssue paper under fabric before lowering presser loot Stitch length should also be increased

4

Before startingto sew a buttonhole,be surethat ghdmgsole is correctlyposzf,onedfall the.way forword,towardoperator)

WHEN A STITCHPATTERNHAS BEENENTEREDAND
THE OK KEY PRESSED. DOES MACHINE SEW
WITHOUT THE FOOT CONTROLLERBEING PUSHEO
DOWN. OR DOESMACHINECONTINUESEWINGEVEN
IF FOOT CONTROLIS RELEASED?
YES - Replace toot control If problem remains, refer to
Sectron 3B I I

,t#.l$

.1NW.lnltM
lIGHTS REMAIN OF:

2#.17

You may have 8 mechgmclll or In electr_al Problem

IS JUST OREBU!BOff ?
YES -

Replace hidbs

,le4_.
lot/N
MOTORSPEEDSELECTIONDOtS NOT WORK

If problem remoras refer to Secl/on 3B6

The low speed c_ffoi _11 allow machme to sew up to ,500 r p m 's. maximum speed shouldbe between 950 and t 000
r p o's Methme shouldnot be allowed to run taster or poor stitch quahty wall result
A WORD OF CAUTION: If ply _ico

mch_

to ke eal'y aiifi, do nit fwce H to operate. Find Ike raesoM tirol

NO
OO YOU FINO HANOWHEEL
STIFF WHEN YOU
ROTATEIT)
ARE 80TH BULBSOFF BUTMACHINEOPERATES
REGULARLY_
YES -

Check connectors tr, see thai they are firmly
connected

NO

YES

Replace bulbs

IS THERE ANY TANGLEDTHREADOR DRIED
LUBRICANT
BETWEEN
OPERATIVE
PARTS
?

Refer to Section 3B6

NO

YES - Remove thread
clean out dry lubricant oil
CAREFULLY lad can mterfere wdh PC board
contacts)

IS TOOTHED BELT BETWEEN UPPEH AND LOWER
SHAFT TOO TIGHT?
NO

YES - Refer to Sections

2C44

for adlustmerds

IS TOOTHEDBELTBETWEENMOTORAND UPPER
SHAFTTOOTIGHT
?
NO

YES - Refer to Sectron 2C44

for adluSh,ents

WAS MACHINEOROPPEO?
YES - If mare frame is henl or broken the rnachme _'; nor
economically repaffahle
OlherwJse. tape,

WITHMACHINEALLSETTOSEW.IS JUSTA LIGHT
PRESSURE
ON FOOTCONTROL
ENOUGH
TO CAUSE
MACHINETO RUNAT FULLSPEED?
YES - Repla:e for* control Checkto see that inlemiplor is
_curaly lesioned to motor control board Refer to
Sect/on 2C4 7 H problem remoras,refer to Sect/on
3B5

NO

o€ replace damaged

paris

21.17

NI.IRII_
MOTOR,fPIEO SELECTIONOOE$ NOT WORK

KEEPINGSAME PRESSURE
ON FOOTCONTROL.
00
YOU NOTICEA DIFFERENCE
IN SPEED.WHEN
FLIPPINGSPEEDCONTRQE
LEVERFROMtOWERTO
HIGH SPEED.ANDVICEVERSA
?
NO -

YES

IS THE MAXIMUM SPEEO WITHIN SUGGESTED
RANGE?
Reter

to

Section

2C45

for

adl.Stmenl

oF

polentromefer

YES
IS FOOT CONTROlMAINTAININGSAME SPEEO.
WRENBEINGPRESSED
WITH EQUALPRESSURE
?
_0

-

Replace toot control

YES

i,
AS SOOFJ
AS A STITCHING
PROGRAM
IS ENTERED,
DOES MACHINERUN WITHOUTFOOT CONTROL
BEINGPRESSED?

YES -

,14_.III I18
FAUtlI' KEvlOARD

Fimlty keyboardperformancers uszmlly related 1o a problem zn the eleclror, c r*tcuJtr_,
Refer to Section 302

Refer I0 Secfron 3B5

NO-

211#

Replace foot control It problem remains fetal to
3eoLian3B II

SERVICEHINTS
It is always adv,_lhle to (hack ta.slons of toolhed balls
maim belt redz_es speedend it tallg_as motel

Too much tension is stressing pulley supports, excasswe tension on

J4_.l_flN
#E, AOJUSrMEIIt AND M/_ACtMtNF

?C.I

A

,P_. MPF Im
tOP TIIMAD rE!I#10# CUmTRI
CHECKING1ENSIGN CONTROLDISC OPENING

L

SPECIFICATIONS

When presser fOol is f#;sed rleara_

e bel_eerl leo_mn disf s _hoofd _.? 0 i _) _he_

i ] itlfq_l ?|l _l,r,fv

the above SHt:lhlahoos

D

I

•

[o_r

presser foot

•

5el thread len*,,on requlafm

•

Insert iip_r

renslofl

at 5

disc goalie 68939

between

dl_r'_ IFequt_, I'

The qa.qe

sho.id

oat tall

,/

_C
B
FIGURE I

E
•

Ra.se pfesseT fool

The (]aoge should fall /Figm'e 2r

]
I

I
I

2

ADJUSTING DISC OPENING WHILE PRESSER FOOT IS UP
I| adluSlmeolis flecessa_ loosenstrew IAI shghtly fFtq_lfe21 end ado,st _O_,IIIOII
_lluslrated T_qhfensrrew IAI serurely alter adlusfment

SERVICEACCESS
Fo_ serv_e arress

s_de A O D and base C covers ran he removed by removmo

BelGie _ooseflmg s¢few
AIIMh

fo I_

lAIr

remove flfsl

covet e. W_l(5 is pressurl

hvqe slods protruding from undefMalh

of mien |faille.

screws as shown

mounted trader mKhlfle
_le five su_pof_ feet No

head
68349

nf

le_t,,"rt]_ ,pw_td i)r dowe,_af,I as

2_ I
]

_o tNI Im
TOPT_LO TE_M# L_tTRL

?€,;

34_,tiff; IN
TOPrlU#/_ rcnlwl_ €_wr#oL

TOPTNNAD 1'!1111011
©MTItOL
•

U_ • tone, _td

•

RJ_so_'ess|f

loot a,d m*s_ t_eid

•

Lo_I

(ool

pro_r

i_l_estpt th_t_t
befwee, d_srs m tension ossen_;ly

• _el left,*on
(ontrol
at 3
• Tiethe 55 _om w_lqhll}io6_Y401 to theend o| the thfe_Id
_tfmg m floM of m_hme fin
marhme lo_af4 youfft_re ,_1 T_ I_fead _hould he held bet_en tl_ Ivnslon_sls and I_e _
qram v_,_t ,J_u;_ not lower Ad_ the _; _
_t
to_o S.S_jram w_ght The m_ea__h_d_
f_ave _lowly thfo_Jh the hmsmn d_srs allo_ng the _gfitS to mo'_ downwe_l

4

TOP TNREAOTENSIONADJUSTMENt
41 The thread tone,on assembly is Odlusted by turning knurled nut IAI tF.7u_e 4_ h wdl he ne(e,;._a_ tc;
refilove fh_ le_Is_onsSsPf_)ly i'F/_UIL. 41 |tom the' m,1_h_ce to make fhls a(f].srmqnf
Tension Assembly I_plecement" paragraph 7
•

the tflrea(f fen_on

tests described previously If sat,sloctofy adlustment tanner be obtained repla(e

tens,on assembly

A

X

B

FIGURE J
Remove v_ghts and _el t@mloncontrolto 0 Pull on th,ead andverify that no tensionis p_esent

•

_1 lenslon centralto I A veryhghltensson should he felt as 15othread_spulledthroughfile d,scs

•

N tensmn assembly does not of_erale at des_nhed aho_

Oppe_

To adjust tensmn assembl_, rotate the knorled r;ng nlot fA) I._sCU_. 4; rep_efrnq

/

•

fi'_fet to

adlnSt thread tonsmn essend)ly

FIGURE 4

2_ I

5

MS. Inl I_
tOP rNI_A$ rill#lOll C$11rllOL

,

CHECKINGTHE THREADCHECRSPfllNG
•

Thread m_lone set tension regolatof at 3 Pl_e a hqhtwl_qht I_lre of Imbr_€underI_eSlll lOOt
Lo_r presser loot

•

Relate hand.eel

and watch the cherkspfm 9 I(_i mohon

properly posllionef_
st|rib,

i

_.I

platting

it will contact tl_ small hmdm o bf_kel

IFigr_o 5/

When the checkSp.oO

TIlISIOII

AISIlIIIT

the fabric

Toa_lo'_t (hecksprmgpos_ttmlloosenscrew Ill and adlusl Imntmg bracketIfl then tighten screw
f|i v,hde holdinq hootingbracket If) rn its nev_v adplsted position enlb a Seconds_re_r_ver

To removt th| lilflslon essllr.lbly film the mKhm_ flrSl rOmlT_e._lOSler r,_ IHI I_F(IIfP _1 from the p_vnfrod ill the
needleba, hohler To do this.remora'! chpII1 endthen bll r Onn_rIIOCI fed Illl,r L_derto qam _(es'_ ,sodf.tj_ert s,_rirW_.
IMI erld 1_1 _mow idlusler ling IHI

7.1 hmev_O Ton_

•

Tensiontreated hy the checksprmghas heed factory adplsfnd Adlnstmentwas made by posdmnmg
fheckSp¢lo
o tad into one of the _otrhes corved in Ihn ha_k end el the checksprtfl9 bracketIF| to
sob,eve a lensmn load on the thread of 13 17 grams

•

If this adlustmenl

ts incorrect, the checksprlog

Ibration will alter

the thecksprmg

tim he leadlosted

Changing the checksprmng fad

Iov_f presSer toot

•

Rotate hln_wbeel unrd take up Io,_r ts in ,Is Iowesl position Removescrew IAI Ál_qute6r an_
lamove lever IBI

•

Removestre_ ICI and (fit NOT[ It may he _eressare to loosen_trew ! and relate hrarl'e: If_ l_
Iemove strew IDI ,I che(:ksp,
hng IG} interferes wdh _emoval nl screw I01

•

P.sh Io_er pHI of tensionassembly to the dffecflorrin(l_caledby arrow 1II _n/rr.9._e 6 a_d the.
relate 11 as showmby arrow 121 "f_s dual mobile wll lace]late removal

1.2 I_tdNq

Te_

F

A_

• To instill, ravelseI_Kldu_eaxial,ned _nprecedzog
plraO_aPh7 | It rs sllggestedlhatyoutlqhfen
sc:ewlot beforescrewIC)
•

E

Alaml_

•

Ir,_,r.e 51

tension

ItlPIACIMINT

is

IFi at the same tone the needle tip

ADJUSTINGCHECKSPRIND
•

_.IHIIN
MP fNMA$ Fl#$1O# COtlMOL

G

Allef metalling tanszo_assemb_, plate adluster ring IX) backinto pastime ruth the larger opemog
up Tighten _rew IN| end lhen t_ghtan .,_cew (MI f:om under connecting rod Ill Hemstall
connectingrod ILl a_d checkto see thai needle bar holdermovesfreelybul has no verticalplayon
shall Reinstall "l" thp (I)

• RepotllrOncheckspfmgbfa_ketIF) (see paragraph51

r

• Inst_l lever(O)_
_d 3

t_ghtenstrewIA) Checktensiondzscspecdzcahons
asdesonhedm parqr_phs
f

A

BC

P

I

FIGURE $
FIGURE $

tC t
|

#ltDlt

_M_ Iffllm
MR #HUFTIt HOOK AMA

tot

_O, Ittlltt
Jttll tHUITII ttOOIf MtA

#tlOlt

CHIECKIflOROTARY|HUTTLt HOOK AIOGLtAIIU AXIAL POSITIOHIIIG
NO1| The toife_t_fHImstttt_tto_s shooedI)t IollaMd vd_t.,levttedtt_tmeflfs f_ rep_rs cotmlKhwteveeremade theeroldd
huve lauded mtsldtostmehts m shott_ hook lflg_ e_ total posttto_lKi
•

flotale handwhealto I_m_l needleto ds hqghes,posit,on _t_moveneedle pies;at toot needleplate.
Gobb,n bbbb,o case a_d hubb,n case holdee Toremovebol_bmrise holder, sidletab "IT" (F_,_e.91
downward Tins wdt release fl,e bobbin ctse hol_,,r tefatrongnor

•

l_otale
$h.lIl¢ h_okbYhand uahl the shuttle ho_k t_ reactors,Is I _ o r I_k poset_etInsert _la_.,l*
No 6893_ hrml_ tote the thuttle dssemblytF_lm'e _0! _t.d _t,o.
,t _o ,'hatt_ppets,des IA) ,_t
gouge em peraNel ruth the feed dog _emngs m needle plate say

•

Lo_tr the shuttle hook ,,ssemblylad gaoget0_thee imtd the feel ol the _k^'_ St_Pfr poet,on_e
_l

•

_entove bobbin taste stop IAI/F_guw

81 by remowog strews Ill)

B

totghtog

Ihe needle

I_atf

and the Io_l,r

poftmn

o| the git_le

,s tl_amia,nm_j

the p/_e_

,_nqln t_

the shuttle assembly Igaoge most be e_nly seated m _huttfe _me osse_,i)lyt

B

•

Tighten s.evw IF) _
(G) serenely RemstatlgatJ_leand rerherk _huttle posdtun Bpmn_ethe
go.go _md verily thai the shuttle assembly rotales freely at,d _l_o_J*hly

•

Reposmon.own gear CO!and teghtens_rews _C_se_, ely zlzq_,w.9_ CAUTION Ousts dNmMke
_ Mt SOlql_ it Io eteln m llkMkogThere ¢tetdd _1 IH_My q; maddqnwqeHMMeel Irl I_1

,nmddy
•

Reinstall gau0e and re_hetk ahg.ment to fleedle plate

B

A

FIGURE #
•

loosen screws IC) /Fl_luW91 _ld heave crown gear 101 away foam shuttle proton _ear Ill

•

Loosen so,eWe(FI and IG) /Flo'Jte,91 and p_ll shuttle hoo2Aassembly upw'ofd

•

_tnstall

No. ei193S

needle plate and _ro(, lead oo.qs

¢
FIGURE tO

?€ _ t

!

MlSll

CHICKIH

JW.Iltl IM
TOINUITif _/(
_IAU/KI

I_AV# MO

#_2. I

MIWI

JdU.l l_l l d_
W l_r_(
_

rAtlAwrMI#

II||OLIE,TO-SHUIFIL|,HO01_TIMMIG

•

To thick pOSlf_ arid aE_r.ntf_! rl]tlll$ hi_el
Io b_a_ ne_dH,bl_ ,o ,is _)hes! posdto_
Removeeesrfie p_e_er f_ot eeedl¢ ?life hoM,n a_d boM_Jnrose Hemovebe_hmtl_e slop (Zip
It_.rr
_1 by remomml _eew_ IBI

•

ktssrl _lm|$ NO 68936 tnl_) need_ bar _tlua,of Io (enter neesle bat is dlustratedm Jrrjr_e II
Alfath r_arJq_NO _8933 to _redle bar Turnha_d*hee! _0 hi,n9 _eedle bar Io ,ISl_s!
_O_hO_O

No. 6111131

No. UISJ

No. 60030

FIGURE 12
_1 By hand lma han_whee: tm,_vardyou m_hl qih_je NO 68932
:_ar holder fFrgm_ _31

No. SCOWl

FIGURE II

FIGURE 13

I_ fa,sed and st_)S aqamsl Ihe n[,edle,

#lEall

J40.IHt IN
W SNUITil #OOI rIMmO AND
f_EAIM#€I

2CZI

• The hm,n9 betweenneedle and shuttle hookis correcl if, unfh gaugeNo 6893G in pllce and hiving
ped0rmled The_taps described m plrigrlphS C, D told [, the shuttle hooktip Is hiddenby the lh:n
lower cabber rod of No 68933 andcannot be seenwhd¢s_ttrngin from ol the mechlno (F*gute;/3
and 14J

3

,11411.
ll_l IN
NEEDLeTOSHUITIE HOOK 11#1116AID
CIEAIMICE

CHECKINGNEEDLE-TO-SHUTTLE-HOOK
CLEARANCE
With needle positioned for stralght
side of needle Js acceptable,

FIGURE 14

006 mr '+,10 1 0 _"mmt h,.tween oh.tile hook hp and hark

w, th needle lip rms,(I

To chert needle to.shuttlehook clearance posmon qange No 58936 ,nlo needle hat art.arm
fFIgrue III Is+stall o _14 needle

•

Lowerneedle bat In rts lowest pus,hun P(,smonqaog.'.No 68932 on needle her Plate qauqeNo
f_8931 aroundneedlebar andon top of gaugeNu 65932 andraise bothga,+Jesuntd theyare r,qht
against needle bar holder !l_loute121 Tightenknob on qange No 68932 and remuve qazlqeNo
68931 Turn hondwheel mannally unhl gauge No 68932 _s ll_jhl against needle bar support

•

Clearance between needle and hook _s correct when wtth very hr|hf pressnre on the needle Ilnwatd
back nf machine) the needle lip touches shuttle hook ten tF+,9_.,re16! Clearanre shnnld be 004
inch IO I 0 2 mmt

If ahgomem dosccsbedin paragraph above is DOt correct, make adluntmeot as follows
1) LoosenscrewscA)in clown gear (8) (flclute 15! Turnhandwheelto raise gaugeNo 68932 until d
++lops
against needle bar holder(Figuce131 Rotate shuttle hook manually,until shuttle hooktip Js
hidden behindthin c.'::her rod of gauge No 68933 Pulse mot_ centeringtool No 58936 mostbe
m place during _lS adlustment
•

Repo'+,y,on
crown gear (B) and t,ghlen screws (At Recheckai,gunlen! as describedin the las!
paraqraphunder number I

•

CAUTION' CceweDeer (B) end p_kln De_ (O) sbedd be say5 bvl netse lilist is to creete
IlindilqlTkl'e shdd beno lip II_ddewlamovementef the skvflleassemblyThisad_uslment
is
ciihed for sme_mess el llllrlliM
add RM$I heel

•

Checkclearancebetweenneedle o .,I shuttle hook as explal..edin thefollowingparagraph
3

.004-.008

inch

(0.1-0.2 men)
]4"

FIGURE IS

A
B

c
FIGURE IS

112 mch 12 8 ulm) from el'+ Iowesl po_,t,un

•

008

2 ADJUSTING NEEDLETO SHUTTLEHOGv TIMING

shtchmg, clearance of 004

when measured

2C 2.1

340,/fit/It}'
2C.2.1 NEEDLETOSHUI'TIE NOOKTIMINGAND
CLtARMICt

.;4_.fill 180
NEERtE TO SHUITL! NOON rIMING AND
CIE,I#MI#E

!.

CHECKINGNEEDLEBANHEIGHT
PLOT(

Before proceeding

center.n_

4

...,,m

with

end iigtag

'he steps descrlhed in Ih.s paragraph v'.e spqqesl veil

verily

av),t if flPress_rv

Set/zg/ag al maximum w.dth wDth needle positioned all the way to the loll Needle bar helqhf is properly adlifsled _hPi)
_dle. in its .pward stroke from its least per(lion has lop of needle eve IDeated O?O en(h i _) m111_
helovs shulrh, hr,t)k

ADJUSTING NEEDLE-TO.HOOK CLEARANCE
Q It clearance (s nol torrerl loosenscrews IAI and relate rest heshmg (HI wh(chsuppers the hook
until Ill_' rorrect settmrJ(S obtained ffrgu[e 171 Tighten screws 1_) sererely alter adlustment

I p, when the shollle

hook lip is d.eclly

•

Remove needle

•

Install gaoge No 68933

behind the needle

presser fool needle plate

hobhm rose and hohhm rasp ".top I,om the ,zarh.fie

re needle bar rFr_lUre 18J

.}
B

It

--

A

No, 68933

A
FIGURE 17

•

_ldol,l

timing Isee Serhon 2C _ 51

Remove qauqe Ha 68932 from needle bar Relate handwheeltoward yD. rheckmg to see that
shnllle hook hp does oat h(t needle H ;I does repeat adlustmenVa_ dn_rnbed m preceding

FIGURE I#
•

Tom machine

•

Manually rotole handwheel toward you to ass.re that needle bar has mnved to the tell positron
Cool:nero Io rnlzte the hendwheel Lmld the needle has (lone all the Way down and ,s heqmmoq Io

paraqraph
• Recherk shnltle hook needle lmnng as covered io paragraph I figures 13 and 14 C,:eckand (f
neressary adto_,tneedle bar hesghtand needle bar or,enlallon as descnbodin Iollo_ng Sechon
2C77

on

Program stitch paltem

1 (left t.qzaql and set ,'olzaq wldlh at zero mm

r($e
Needle bar height (s correct when hawng performed the pro(edtire In"
above lop nl _h.lfle
hook is hidden by the thin rod of gorge No 68933 end Ihe very tip of the hook is at the same level

•

as the qfoove on the gauqe If/qurt,

19J

FIGURE19
ADJUSTING NEEDLE NM

HEIGHT

•

LoosenscrewIA) IFrgure181and odlustneedlebar up or dovmto properpostage T,qhvenscrew (A)
securely whde holding needle bor m the proper or,enfalmn

•

Check adloStelenl rotating handwheel

2Ca.?

)

.HI. I001 tN
IIEtDLE UAII Iltl_ltT ANO ORItNTATION

341.1H! tN
2C.2.3 CLFARANCtILrTWttN 80181N CASI_
NOLDtR AND 80RIIN _.A$1STOP

CHECKINGNEEDLEBARORIENTATION
Needle bar onPntahon is wdhm specd,'ahon when ghl side bar of panqe No 68933 is hetween zero and 060 inch 11 ,_
rum) of parallel hoe wdh Iron: edge ol needle f.lale See Fiqt,r_"o .',r,, 21 and ,72
•

.

The 060 inches 11 5 mm) position wall improve machine performance when using stretch lhread_

CHECKING THE CLEARANCE
•

CIParancebetween the small stud protrudingfrom upper port,on ol hnhh,r"qa_,eholdera,d the
boltom of slot rn bobbin case slop must he 015 022 inch

•

To checkclearance,use warefeeler gaugesIF_gute241 The O15 ga._qeshould enter(learanre and
the 022 qaoge should be log lh_cklo enler

IFrom'es 21 and221 This 060 inch Iwasl given to the needle bar wall make at easier for the hdok tip
to lOCk up the I_read loop

• In no rase shouldthe left handrod Iratherthanthe rtghl rodtbecloser totheplateedge(Figure
22J
4

2

AI1JLISTiNGNEEDLEBAR ORIENTATION
•

To adpJsl,loosenscrewIA) (,Crgute201 androlale the needlebar as reqo,ed for properadloslment
Re fateful nut fo change needlehat height Tightenstrew IAr securely Removega,(le andimnstall
hobbm rase needle needle plate presser fool and bohhm case slop

•

Adlusl the poslhon ol bobbin case stop Refer to Sectmn 2C2

ADJUSTING CLEARANCE
Loosenscrews (A) and adlUSl the slop

position

Tighten screws ser:urolyafire

3

/

A
A

No. 68933

FIGURE21
FIGURE 24

No. 68933

0

FIGURE 20
FIGURE 22

adlnsluignt

341o.lllnm
_C.2.4 nFEDLEPOSITIONAT STRAIGIITSTITCHING

_M_.IHIIm
2C.2.4 NEEDLEPOSITIONAT STRAIGHTSTITCHING

To obtain reflect ahgnuleflt both merbamcal and electoral lero positions must be propedy set

•

If adlostmenl is needed because needle ts not centered front to bark m needle hole adlusl
eccenlnc m needle plate screw IA) fFogutt 261

CHECKING MECHANICAL ZERO POSITION

2

3

•

To verify set needle plate wdh straight stitch hole under needle

•

Place gange No 69936 into needle bar actuator (l_ogrxe251

•

Remove needle and attach gazige No 68933 to needle bar as illustrated

•

Rotate haodwheel to slowly move needle bar down

•

The merhamral lore position ts correct of gaugerod penetratesthe needlehole witbool touching
hole edge

CHECKING ELECTRICALZERO POSITION
•

Remove gauge from needle bar actuator

•

Rotate haodwheel to raise needle bar to upper pos,t,on

•

Turn machine "on" and programat for sfranghl shtchmg

•

Rotate handwheel to lower the needle bar

•

The rod of gauge No 68933 sho.ld penetrate the strauqht shlrh needle hole m the raider and
shouldnot contact the needle plate

ADJUSTINGMECHANICALZERO POSITION
•

•

If needle _slust shghtly oil center then simply loosen screw cB) (Frgute25/and turn eccentric
strew iC) untd needle us centered fight end lefl Tighten screw (Or serntely alter adfustment
If needle centenng cannot be obtained with eccentric scre%,v(C_ slightly loosen screv_ (A) and
move needle bar octuafor toward front or hack ot machine until gauge fed centers in needle hole
Tighten screws (AI sertaely

YES

4.

ADJUSTING THE ELECTRICALZERO POSITION
•

If electrical centering ,s not correct as descnbed above of wdt be nere_sarv to
potenhometer Rater fn Sectmn 2C 4 5

adlu_t

alter adlnstmenf

NO
No. 68936

i

B
A
A

No. 66933

\

FIGURE 26

FIGURE26

Ihe

2Ct, J

_, tIM 18
CHICXI#_ TIM/N_ AND WIDTH OFZIGZAG

_m.IO01100
2C.2.$ CHECKINDTIMIND AND WIDTH Of EIDZAI_

CHECKING ZIGZAG TIMING
•

2. ADJUSTINGZIGZAGTIMING

Z,gtag timing rs eo.eet d needlestarts its side muttonwhends tip is 340 inch18 5 mmlabove the
needle place Th_smeasurementis taken when the needleis hemgraised toward,is upperposlllon
Cheek th_s measurementas follows

•

•

Posmon needle plate for llgzag shtchmg

•

Remove gauge and turn off the nlachme

•

Install o site 14 needle

•

•

Turn the machine "'off" and program it for _lgtog _,htchmg at maxlmnm width

Rotate handwheel and check the clearance between board and magnet ICJ thgute 28r The
clearance shouldbe 012 040 inch between magnet (C) and eachof the two magmstors(01 and
(El Check thusclearance with feeler gauges

•

Recheckneedle bite nsmg gauqe No 68931

TO adjust, sbghtly loosen screw IA) of lever (BI on nlarhme lower shaft iFI IFiq,te 28J Rotate le_er
(8) on the shaft to obtain the correct sethng
selling _s correct,

• Lower feed dogs

hghten screw

•Mauually
relate the handwhenltoward youat least one complele Into Iheo stop wllh needle m
eppei position
•

Place !lange No 68931 on needle plate Mal,.esure thai gauge ts dnectly centeredover zigzag
needle hole as shown m Figu/e 27a

•

Mannally rotate handwheeltoward youandobservethai needlepassesoverthe secondstepof lhe
qauge without lunchingit (Figure27a! Then.slide the gauge toward the front of the machine,so
thal the third stepis posillonndunder the needle The side mohooof the needleshouldDO,Sothe
qauge to hp over when hondwheel is being rotated fFigute 27b!

Recheck needle b_te with qanqe Nn 68931

V_eu

(AI seenrely

E

A

E]

t

/

F

O

C

B

FIGURE 21
3.

CHECKING ZIGZAG WIDTH
•

Maximnm zlgtag wndth 18 0 ore readouti should allow lhe needle a bale belweeu 7 .5 a.d 7 8
mdhmntnrswhen uncrated mammgy wdh the handwheel

• To veery this position needle plate for ,,_pzagshlrhmg

No

611931

• Install a number 14 needle
• Lower feed dogs
• Turn mach,ne "on'

Red mark

FIGURE 27a

FIGURE ?Tb

and program for w_desr,,ig._aqshlrh

•

Cheek needle b,te clearance nsmg gauge No 68931 iFimlr_,Z71

•

Manually retain handwheeltoward yov thrmJgh one completet,gtag cycle andobserveneedle bar
holder (A) and pivot IB) (Figure 29) The clearanees between pivot (81 a_d each of ttze hmdmg
demons(CI mustbe equal Alsohinder ICI nlUSlbe 020 032 mehes belov, holderIA)/Ftqute 29_
Check €lemonces with leeler gauges

•

If adlustmentis feqmred loosenscrew(OI sl,(Ihllyandrotate Imuts Afteradl.slmenl hqhten,_rlew
IO) securely and recheck clearances
A B

DC

FIGURE29

2C2.$

34# IHI tO0
CHFCKIll6 TIMIN6AIID WIDTHOF ZIGZA6

2C2,6

.

•

Place a hrm piece of paper over needle plate Mannally rotate handwheel toward you hrongh one
(omplete t_gtaq cycle Remove the paper and measnre the distance between Ihe two holes The
(Direct distance will be 7 5 7 8 mr. If:gme 301

340.1ffl IH
KttOiE IILq SUPPORT

REMOVING THE SUPPORT
•

Remove"E" chps(AI (Iron,re311and remove conneclmgrod IB) offof pJvot_of al'lualor andneedle
bar siJpporl

•

Loosenscrews holding ring IC) Remove ring

AOJUSTII_G ZIGZAG WIDTH

•

Loosenscrew IOI of Imnlmg device (E)

II needle hole spa(ing ix not toffee! adluslmenl of potenl_ometeris needed Refer to Seclmn 2C4 5

•

Loosenscrew (FI Iowel pivot IG). remove

•

Remove needle bar snpl)orf (I] from machine

E chp IH) and shp ezJl pivot (GI

B

A

A C

0

H

F

7.5-7.11mm
FIGURE 30

FIGURE 31

2Clt

J4_ I #$ t ttt
#fEOIE tAR SUPPOhr

2C21

JM_.lttl IN
tlltOlE tAR SUPPORT

INSTALLINGTHE SUPPORT
•

J_anungy turn hondwheel .ntd toke tip lever is at its highest posmon Insert p_votrod horn block lit
Iftg.te

321 at,to the

artacldated

Joint IIIoahng

h.shmg)

IMI

in md fNI

•

Tom machine on and program d for ma_mlum ;zglag width Manually rotate handwheel towa,d yon
throogh one cdmplete tJgzag cycle whde observing pivot _(]1 and hn.tmrl dev,r es (|l The tlea_an_ e
hetween the ptvOl and each stop _hoolP be eqnal IF_qme 341 Che_k the _learanre between t,p ol

N

both stops and needle hat _oppor! ;Jsmg!eeler qanqe The (mre(t

€learance v_ll he 070

g adloStment is i'eq..ed loosen s_rew IOI and fepo,_t,on hollt dewce
not h_! or brad on hm;t/nq _lew._e

I 0

M

L
FIGURE 32

D E
•

Insrrl psvol IG) Ihro.gh

the bottom of the needle bar support Before pivot reaches the highest

porhm, ot ,leedle bar supporl locate the Imntmg device 1[1 Be sore that p,vof IOI is between the
two

•

stops ol the hnatmg

device ([I

Place elasl,c washer (P) on pivot

IGI

Remstafi E" (hp IH) If;quce 3t) into slotin pivot IG) Besure thal elastic washer(PJls above "'_ '
thp till While ntamtamm9 an upwardpressureon the bottom of pivot IG}. install the retainerring

fCb
•

The wider opening of Ihe tmq should be tip Tighten screws

serarely

•

I,learance helween botlom of needle bar suppml and malnlrzme sechon shouldbe 040 II ram)
inch (Frgure 311 Check clearance w_lh feeler gauge Ihen tighten screw If)

•

I_,a,,;la!ly move needle bar sapporl hack and forth In he sl;_e it operates smoothly and does not have
aay vertical play If verhral play as,sis. Ioosea strews holding ,etelner clog (_j _ldloSl ring level and
Ilghlen

•

SL'IPWSsee.rely

Install crnaerlmg rod IB) as ,lluslraled in Figure33a hgme 33b showscoanecf,nqrod incofrectly
installed Remslall the '[' chps IAI fFigtlre 311

L
FIGURE 33a

FIGURE 35h

FIGURE 34

[

032 mrh

,_'OTf Be _a_teps_ol doe_

it 2 t
I

141 IR! IN
RI_ACm_ 1Hi $H01711 HOOKAND
KltATIO 01_

34_.IIII 18
2C.?.7 #EPL4ClNG THESHUTTll HOOKAND
RtlltlTO 8EARS

REMOVING THE SHUlrTLE HOOK ASSEMBLY
•

Remove needle presser foot r_edle plate end bobbin case hn,der

•

loosen slrews IB) and remove bobbin case _tep (A) ([rg#te 361

B

•

Ldt and push hack feed do_Jbracket (HI IFtgute 3[.J then fenzove sh,ttle hook

B

FIGURE38

,

REMOVING THE SHUTTLE HOOK DRIVE BUSHINC
removing
the sh.tlle assembly,the bnshmg(an be removed byloosening_1few II1slilJhily
hook drive bushing (L) IFIguce .791
After

and slid|fit I

outthe _Jn_trlv

FIGURE36
,

REMOVING THE CROWN DRIVE GEAR

•

Loosenscrews (CI /Figr/te 371 and shde crown geal (DI away front shultle hook l_n,On gear {El

•

Tum handwheel by hand to bnnq take lip level In its lowest posd,on

•

Turn handwheel n,annally to bring take tip lever to ii$ IoMst position

•

Removescrews G fFiqure 391 remove hrackel IM) andshde bushingholderINl oil of lower ,_haff

•

Inosen screws IFI

(Flgme

371 and remove shuttle hook piniongear Ill

Loosenscrews IG) slightly

L
C

MG
G
F

E
FIGURE37

D

FIGURE 39

I
•

Ca,el.fly
IHl

pull Io'e_f fhafl

fOI downwind

Remove rro_m qeaf IOI Ifsq,te

Watrh

IOI st(for

blo(k IF Whl(h mey €nine out of qLndO

401

INSTALLINGTHE SHU'IrTL| HOOK
•Vefaf¥

IIISTALLIIIG CROWN GEAR
•
•

Hnldmq Iowe_ shaft tO)

poslhon [_ft and posh barkwald

o_ the fee4 doqs

slide un the (form

{leaf IDI

pressure

then hushing holder IN) IFogme 411

with ¥onr hngefs

OlD _le

shultlt' hook and pm_on qeaf

tnlhten srxe_

IFI _ectoelv

Ve,_fy thai blork IP) ts properly IrKafed m qtude err and reposdmn enwer shall mto _ts mounhng
posit,.,

•

thef the take |NOlever zs stdl m *Is lowest

IH) IFeglee 421 $t,p shottio hook nero its hoshmg and apply pmmn qear I|; To the end of shuffle
hook shaft Press plmOf_qeaf and shottle hoM hrmly together as shown ,n F_lute 43 Be sere tha!
one of the two stee_s fl_l zs IoraleO nvel the flat side of the shotfle hook shall Keepmq I_rm

fFIqurP 40J

Po_dmr: brarket

IMI tFrql/te 39/

ant1 loosely mstall strews

IGt

R
D

FIGURE42
•

0

srlews
•

FIGURE 40
5

Tom sholtle hook by hand to he sine thai _t turns f.eely and doe _ not have any vell_! al p*a'_ T,;hteu
((]l IF_gu_

43r

Toln marhme "on ' While ma£inne zs fonmnq lightly and _epealedly
s(_ewdr_ver handle to help sell pnrjnlnl] bushings adlust

•

INSTALLINGHOOK BUSHING

Swtt('h machine off
pos,tmnlnfl

Cher'k that the sholtle hook auqle ts _et rnrre_tty

Cheek needle tlmmq In shtlttin hook

•

Install bobbin

_a_e stop

•

Install needle plate and needle

Reler to Serhon 2(. 2 3

L

N

D
FIGURE 41

Cberl_ .,h.ttie

Rele_ In 5e_l_oo ,_C 2

Install '.lmltle hook h.shmo ILl IF/gure 41! olin hoshmg holder IN) _Jsino{] should be posdmned so thai its beveled end
(S) enters the lop ot the b.sinrtg holder and protrudes from the hotlom of the holdee and Jfs flal side (TI is facing Clown
gear (01 fF#q.te 41J Only the beveled end ISI of he hoshinQ should [nolrnde below Ihe holder Tighten st:tow ill

hd mafhme In_',er _hatl v,lth

thonT_,elve_

FIGURE 43

|]O(Ik aelaf

lC 3
tC # t

I

2

Mt.ltttlN
FUO tttCNMNIM
tltIOit

J_. Itt l _Pt
2€..?,2 FttO Ito_It _ttl_tlt_#

i'1MIII8 TOFtlO

I

Cfl[CKING NEEDL| TIMING TO FEED
•

Needle hrmng to feed _sforfeit wSeo after hovmgmoved the needlebar to IS o_st
tan reedy both of the fugo_ng ronthttOns

•

fIRST CONDITION- The t_p IAI Irn_essid (_:ltoothedwheel (B) IFigwe 4.1) pegoed to _nacbme
lower shaft (Di mus._ .it tacmg su_ott ICE _d_ch protludes horn mamtlame

•

S|CGNO CONOITION_ The pfoftudlog etlentt_c pofhoo ot teed eccentIicIll must be orientedm
the same dlfechon as tip IAI IThey musl be mremed opposl,e nt o_tatof ) t!/_u_ 441

•

II Ihe tlfsl ot these two tnndltlons

CHECXIIIG FEED DOgS €|IIT|IDflO

• To thetk rlea_ante remove needle and I_eSse, loot
t

Tom hon_vheel by hend to b,m[I feed doqs to the,r h,_o,_t po,_,tl(]nah_e Ihe needle plate
CifecktO see that life 002 ruth t 0,_ mntl blade ot the leelet gauge can be resortedbetween oath
side of feed dogs and the ta_m_ needle plate edge (F_u_e 45_

2

cannot he relined

IIIIG#g

41 Feeddogs me €OrrECtlypositionedWen the cite€once betweenthe edges of needleplate wmdows
and the teed dogs is el least 002 tnch ( 05 me,)

posnon. you

ADJUSTING llEEDtE TIMING TO FEED

_O

ADJUSTING FEED DOGS CENTERING
loosen both sclews tat slightly and adlusl po_t,nn of feed shall pln_ ir_ttO_lef_lerwdh teed holder ICE fie s.re .,,t _o
leave any play between feed homer and feed sSMt pins 7_ghte_,strews 1_ '_ec.rely after adl_lme.t

it means that the ful_matJg methemsn) Inking

the needle bat to the lower shall mohnns is oul ot tlmJeg This nay have happened if the togged
belt t orlnet h,_ o_et and towel shales and/_ togged belt €onnectmg uDper shah and needle bat
umt had been lenD,red and iml)fop_tly
•

If the set ol_ i ond_hon cannot he verlhed it me_s

that feed et (entre(" I_ t IFaq,le 4_1 was removed

front lower shall tnl and later installed wqfl the wTong onentat,on
properly repos,hon teed ertentf_hqiflen strew It) setleely

IVOP!

CHECKING FEED DOG HEIGHT

rnsfalled Itor bell to pulley timing tetel to Se(tlon _C 4 4f

loosen strew t_) sh_bife

Ithat ,s tumnd 180 degfeesl To

rotate teed et_eottr_

leo degwes and

• With teed dO_ls_a_sedto the h,grleStposlho'l lhe lips ol teed dog teeth should he 036 mrh f 9
mini _ove needle pta|o love!
•

$W_Khmachine 'on' and program it tm $tra,qbt stdrbmq at maxmuml stltth lenOt_

Be suw to recberl_ both ronrhhon; e_,p/essed m pataqraph I

B

C
D

%

B
A

D
E

B
A

F

C

0
FIGUR N
FIGURE 4S

A

tC 31

J4_.IHI In
FEID OOB$ Ct!lrtlllllQ 4110Illl_Nr

J41.IRIIM
,_CJJ #EROFEE#PO,flI'IONII_;SrlrCk IENOTII

•

Ple_. qaoqe No 68931 a(,o$_ feed doq opemmja_ shown,n figure 46 w_thted m_k f,ghl abo_e
feed d_ Irelh IFqlure45al Men.ally re,ale handwheeltoward Veil The feeddogfeelh should511
the Uimqe

Z!,fOfeed pll$0h&mng0spfopedy Setwhen fh,e|eedmg me(hemsmranses a fdhn{j mof_flnonly wzfhool,lnv !eedm0 at ,€ft _f_'
Ihe ¢0.e(:f NtO feed pos_hom_ bolh mechllmcal ond elerlt_(al _efo pos_hon_m_l be properlyset

•

Shd_!)aoqe so Ihal fed mofk ts 5eyond lead d_q feelh fFl#ore 45#1 [ton han4h_eel again The
leefh thoold not Idl lhe g_lLIqe

T.

CHECKING MECHANICAL ZERO POSITION
•

4

ADJUSTINGFEIEODOG HEIGHT
•

PlaTe one lhlckne_;so! fab'ht fWslha sehe._of pa,allel lines drawsl)nndel the pres,.el loot/F,_UPP
47,

LOG'.ans_:_'ewIAI slightly tF_g.te 461 and adl.._l e.:cenlrp: Pivot IB) Io,_:aled,niI, lefeed I,fl,ng level
When le*',l desrr_bed m pretedmg parag,aph 3 ran hi, $.t'._:essfolly pc,formed

hghlen screw (JI)

sp_ Li,ely
•

Jiepeal tesl a(jam

Torn machine oil

and m*.tall presser fool and ire*die

Red mlrk

FIGURE45k

FIGURE 45m

FIGURE47
A
FIGURE46

It 4tlach qaIKJ0M0 6893fi te teed acfl,etof f,t_lre
•

418/

Mimuallyrotate handvd+eel++ovefallens lad Wal(h _e hnes df_vm n. Pte lah_

•

LNSIIv _rllm

•

MO_ Pe IKIulI¢
n_) el00INmng

•

Move _h_tOt hovelIX! IOWlid bottom otmefhme zmhl_tt.att_ [ml re_ts aLja'o+',t,*h_mPlate (104
I_h feeler _ge blade b|tvv_enI_o_k se_tofIMI endle.er IN) Move shaft fit 0+_hror left unhl the
co.k

1";',1'I,'{-I'l

_' 
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