INDUSTRIAL SEWING MACHINE
INSTRUCTION MANUAL
4300CW
CONTENTS
1 . B r i e f i n s t r u c t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2 . M a i n s p e c i f i c a t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
3 . O p e r a t i o n p r e p a r a t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
4. In st al li ng th e kn ee li ft er me ch an is m. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .1
5 . L u b r i c a t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
6 . I n s t a l l i n g t h e t h r e a d s t a n d . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
7. In st al li ng th e be lt co ve r an d bo bb in wi nd er .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .3
8 . I n s t a l l i n g t h e n e e d l e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
9 . I n s t a l l i n g t h e b o b b i n c a s e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1 0 . W i n d i n g t h e b o b b i n t h r e a d . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1 1 . P u t t h e b o b b i n i n t o b o b b i n c a s e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1 2 . T h r e a d i n g t h e n e e d l e t h r e a d . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1 3 . A d j u s t i n g t h e s t i t c h l e n g t h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1 4 . T h r e a d t e n s i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1 5 . T h r e a d t a k e - u p s p r i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1 6 . A d j u s t i n g t h e p r e s s u r e o f p r e s s e r f o o t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1 7 . A d j u s t i n g t h e h e i g h t o f p r e s s e r f o o t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1 8 . A d j u s t i n g t h e h e i g h t o f f e e d d o g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1 9 . A d j u s t i n g t h e n e e d l e a n d h o o k . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2 0 . A d j u s t i n g t h e n e e d l e g u a r d p l a t e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 1 . A d j u s t i n g t h e i n n e r h o o k g u i d e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 2 . A d j u s t i n g t h e l e n g t h w a y s p o s i t i o n o f n e e d l e b a r f r a m e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 3 . S a f e t y c l u t c h d e v i c e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2 4 . R e l o a d i n g t h e t i m i n g b e l t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2 5 . T t r o u b l e a n d r e m e d y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 0
1 . C a s t i n g c o m p o n e n t s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1 - 1 2
2 . U p p e r s h a f t a n d t h r e a d t a k e - u p l e v e r c o m p o n e n t s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 3 - 1 4
3 . N e e d l e b a r a n d h o o k d r i v i n g s h a f t c o m p o n e n t s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 5 - 1 6
4 . P r e s s e r f o o t c o m p o n e n t s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 7 - 1 8
5 . U p p e r f e e d m e c h a n i s m c o m p o n e n t s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 9 - 2 0
6 . L o w e r f e e d m e c h a n i s m c o m p o n e n t s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1 - 2 2
7 . T h r e a d t e n s i o n c o m p o n e n t s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 3 - 2 4
8. Be lt co ve r an d bo bb in wi nd er co mp on en ts .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 25 -2 6
9 . K n e e l i f t e r c o m p o n e n t s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 7 - 2 8
1 0 . A c c e s s o r i e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 9 - 3 0
Operation instruction
Parts list
3.Op erati on pre parat ion
1.Br ief int rodu ction 1.Ma in spec ific ation
T h i s c y l i n d e r b e d s e w i n g m a c h i n e a d o p t s s i n g l e
n e e d l e , s l i d e t y p e t h r e a d t a k e - u p l e v e r , a n d v e r t i c a l l a r g e
h o k . U p p e r a n d l o w e r s h a f t s a r e d r i v e n b y s y n c h r o n i z e d
t o o t h e d b e l t . C o m p o u n d f e e d b y f e e d d o g , n e e d l e a n d
wal kin g f oot ;an d h igh pr ess er foo t s tro ke a nd li f te r a s su r e
i t s h i g h s w e i n g h e a v y a b i l i t y a n d e a s y f o r s e w i n g m u l t i -
l a y e r l e a t h e r a n d u n e v e n m a t e r i a l s . S a f e t y c l u t c h d e v i c e
also assures sa fe operation .
I t s w i d e l y u s e d f o r s e w i n g l e a t h e r p r o d u c t s , s u i t c a s e s ,
s h o e s a d c a p s . E s p e c i a l l y , i t s c y l i n d e r b e d i s s u i t a b l e f o r
sewing various arc and cur ved mat erials. .
2000s.p.m
MSK-1341B
6m m
33 . 36mm
6. 5 mm by hand
15 m mby knee
Sl i de type
La r ge hook
Dp ×1 7 14"~24"(st a n dard23")
Oi l ed by hand
40 0 W(special fo r s ewing machin e 2 P)
Me d ium,heavy, e xtra heavy
we i ght material s
Befre first operate the machine,please clean the machine thoroughly in order to weed out the
dust and frlly lubricate the machine.
Please confirm if the power will be used is suitable fo r the desig ned volta ge.
The rotating direction of the machine is counter- clock wis e when obse rved face to the hand wh eel.
Before turn over the machine head,please take dow n the knee li fter chai n hook.
Before trial running,please take down the bobbin and needle.
Please control the sewing speed under 1800s.p.m w ithin the f irst operation month.
Only after the machine stops,then the hand wheel ca n be operat ed.
4.In stall ing th e knee li fter m echan ism( Fig.1 )
When us e the knee lifter pedal,please use the screw
to fi x t he knee lifter lever .
Knee li fter leaver and s cr ew are p ac ke d i n t he ac-
cess or y carton.
272mm
61mm
100.5mm
33.5mm
① ②
Max.sew ing speed
Max.sti tch length
Needle ba r stroke
Presser foot lift
height
Thread ta ke-up leve r
Hook
Needle
Lubrica tion
Motor Pow er
Abblica tion
To center of V-belt
5.Lu brica tion (Fig. 2)
1.Before running,please fill the oil at the places as
arrow shown.
2.Lubricating the hook and hook shaf t saddle.
Move the bed slide,fill the oil int the ho le A two or
three drops every day,fill the oil into the felt B four
or five drops.
3.Lubricating the feed dog support
Before running,please fill the oil i nto holes C,D,E
two or three drops.
6.Installing the thread stand(Fig.3)
C
E
B
A
The th re ad stand should be located on the right backside
of the t ab le,then tighten the nut C.
C
7.Installing the belt cover and bobbin winder(fig.4、5)
1.Install the belt cover support column into the screw
hole;
2.Install the belt cover support plate on the machine
casting;
3.Install the belt cover on the belt cover support
column and the belt cover support plate;
4.Install the bobbin winder into the cover and
adjust it to the proper position;
5.Fix the bobbin winder on the table;
6.Install the V-belt on the hand wheel,the n install the
belt cover and belt cover .
①
②
③
①
⑥ ③
⑥
④ ⑤
1.T urn off the pow er;
2.T urn the han d whe el to lif t the nee dle bar to its
hig hes t pos iti on;
3.l oos en the nee dle set scr ew ,an d mak e the nee dle
gro ove Ato the rig ht sid e;
4.I nse rt the nee dle sha nk unt il to the bot tom of the
nee dle bar soc ket ;
5.T igh ten the scr ew .
②
①
②
8.In stall ing th e needl e(fi g .6)
①
②
A
①
②
③
④
⑤
⑥
B
A
9.In stall ing th e bobbi n case (Fig. 7)
1.Op en t he hook cover,put the bobbin and bobbin
Case i nt o the hook;
2.pu t th e bobbin case on the hook driving shaft,then
lay do wn the hook cover.
10.W indin g the bo bbin th read (Fig. 8)
1.T hre ad as fol low ing ord er A,B ,C, the n win d the thr ead
aro und bob bin sev era l cir cle s;
2.P res s dow n the bob bin pre ss pla te ,th e win din g
pul ley wil l be tou che d wit h the V-b elt ;
3.w ind ng amo unt can be adj ust ed by the scr ew ,th e
opt imu m cap aci ty of bob bin thr ead is fil l abo ut 80%
of bob bin out sid e dia met er. Tur n the scr ew clo ckw ise
to inc rea se the win din g amo unt ,co ntr ary ,to dec rea se
the amo unt ;
4.I f the thr ead is not nea t,p lea se mov e the bra cke t
to adj ust is;
5.W hen the win din g is ove r, the bob bin pre ss pla te
wil l be loo se and the bob bin win der wil l sto p aut oma -
tic all y.
①
②
③
①
11.P ut the bo bbin i nto bob bin ca se(fi g.9)
1.Dr aw the tip of bobbin thread to the right ,then put the
bobb in into bobbin case;
2.Dr aw the bobbin thread through the slit on th e
bobb in case,then pass through the thread tension
spri ng ,finally,draw the thread out of the slit .
Remi nd er:if the bobbin is put correctly,then draw the
bobb in thread as A,the bobbin will rotates as B.
①
②
A
B
C
①
②
③
①
②
B
A
12.T hread ing th e needl e thre ad(fi g.10 )
P o s i t i o n t h e n e e d l e b a r o n i t s h i g h e s t , d r a w t h e t h r e a d
f r o m t h e t h r e a d s t a n d a n d t h r e a d a s s h o w n o r d e r
a c c o r d i n g t o F i g . 1 0 .
13.A djust ing th e stitc h leng th(Fi g.11 )
Turn th e stitch dial counter-clockwise or clockwise to
adju st the stitch length. The figure on the dial is the
stit ch length.(mm)
Reve rs e feed stitching
1.Pr es s the feed leaverdownward;
2.Wh en press the feed lever down wa rd , t he fe ed in g i s
reve rs e;
3.Re le ase the feed lever, the machine recovers normal
feed in g again.
②
14.T hread t ensi on(Fi g.12 )
1. Ad ju st in g th e te ns io n of ne ed le th re ad
Tu rn th e te ns io n ad ju st me nt nu t cl oc kw is e( A
di re ct io n) to in cr ea se th e te ns io n of ne ed le th re ad ;t ur n
th e nu t co un te r- cl oc kw is e( B di re ct io n) to de cr ea se th e
te ns io n.
2. Ad ju st in g th e te ns io n of bo bb in th re ad
Tu rn th e te ns io n ad ju st me nt nu t co lc kw is e( C di re c-
ti on )t o in cr ea se th e te ns io n of bo bb in th re ad ; tu rn th e
nu t co un te r- cl oc kw is e( D di re ct io n) to de cr ea se th e
te ns io n.
①
②
①
②
③
④
⑤
⑥
⑦
⑧
⑨
⑩
6
5
0
4
3
2
1
①
②
B
A
①
②
D
C
15.T hread t ake- up spri ng(f ig.13 )
1. Ad ju st in g th e th re ad ta ke -u p sp ri ng st ro ke
a. Lo os en th e sc re w ,a nd mo ve th e di sc le ft wa rd
or ri gh tw ar d;
b. Mo ve th e di sc ri gh tw ar d to in cr ea se th e sp ri ng
st ro ke ,c on tr ar y, to de cr ea se th e sp ri ng st ro ke .
2. Ad ju st in g th e te ns io n of th re ad ta ke -u p sp ri ng
Ti gh te n th e nu t ,t ur n th e sp ri ng sh af t co un te r-
co lc kw is e to in cr ea se th e te ns io n, co tr ar y, to de cr ea se
th e te ns io n. Pl ea se us e a sc re wd ri ve r to ro ta te th e sp ro ng
sh af t to ge t th e re qu ir ed te ns io n.
①
② ③
④
⑤
16.A djust ing th e press ure of p resse r foot (Fig. 14)
Adj ust the pre sse r foo t pre ssu re acc ord ing to the mat er-
ial s.( the sta nda rd hei ght of pre ssu re adj ust men t scr ew
is 25m m).
1.T urn the scr ew clo ckw ise (A dir ect ion )to inc rea se
the pre ssu re, con tra ry, tur n the scr ew cou nte r-
clo ckw ise (B dir ect ion )to dec rea se the pre ssu re,
2.A fte r the pro per pre ssu re is got ,ti ght en the nut .
①
①
①
②
17.A djust ing th e heigh t of pre sser fo ot(f ig.15 )
1.The optimum fixed position of presser foot is to adjust
The presser foot to the “1/8”indication line on
The feed crank.
Loosen the nut and adjust the cam link assembl ing
position.
a.At he highest position A, the max .Presser foot
Vertical stroke is got;
b.At the lowe st position B, the mi n. Pr esser foot
vertical stroke is got.
2.Usually, the srtoke of outer presser foot is same as that of
the inner presser foot.
A.Loosen the screw ;
b.When the thread take-up lever is at its highest
position,lay down the presser bar lever;
c.Adjust the feed crank to leftwa rd(A directon)
to increase the presser foot stroke.contrary,adjust
the feed crank to rightwa rd (b direction) to
decrease the presser foot stroke.
①
②
③
③
①
②
③
④
⑤
Standard
25mm
B
A
①
②
①
B
AAA
②
③
B
A
18.A djust ing th e heigh t of fee d dog(F ig.1 6)
The s ta ndard position of feed dog is 1mm higher than the
surf ac e of throat plate .
Plea se adjust it as folowing order according to sewing
requ ir ement or after change a new feed dog:
1.Pl ea se confirm the highest position of feed dog;
2.lo os en the screw ;
3.Th e h eight can be adjustd by turning eccentric pin(P22).
4.Af te r the requred height is got, tighten the screw .
①
②
③
③
19.A djust ing th e needl e and ho ok(Fi g.17 )
1.Adjust the stitch dial to figure“3”
2.Turn the hand wheel to lower the needle bar to its
lowest position, and loosen the scrwe ;
3.confirm the standard height of needle bar:Lift the
needle bar up to 2.4mm from its lowest position, there
should be1.7mm clearance hetween upside of needle
hole and the tip of hook blade ;the lowest position
of needle bar is that there is a clearance of 55.2mm
from the bottom of needle bar rocking frame to the
bottom of needle bar.
4.Loosen the screw ,move the gear cover , and
loosen the screw and screw ;
5.Loosen the screw ,move the hook shaft saddle left-
ward or rightward,assure the clearance between the
tip of hook blade and needle is 0~0.5mm, after
finish, tighten the screw;
6.Make the tip of hook blade align with the center of
needle bar,then tighten the screw ;
7.Turn the hand wheel clockwise, tighten the screws
alternately.
①
⑥
③ ②
④ ⑧
⑤
⑦
④
⑧
1 mm
①
②
③
②
③
④ ⑧⑧
①
55.2mm
④
⑤
0~0.05mm
⑥
⑦
1.7mm
2.4mm
0~0.05mm
20.A djust ing th e needl e guar d plate (Fig .18)
Afte r c hanging hook , please confirm the position of
need le guard plate. The standard position of needle guard
plat e i s that needle guard plate is to uc he d w it h t he
flan k s ide of needle slightly, i f n ot ,b en d t he pl ate and
adju st the position:
1.If th e needle guard plate bends inward, please a djust
the p la te outward with a screwdriver;
2.If th e needle guard plate bends outward,please adjust
the p la te inward with a screwdriver;
②
①
0~0.05mm
①
②
21.A djust ing th e inner h ook gu ide(F ig.1 9)
1.Tu rn the hand wheel to make the inner hook guide
reac h i ts final position;
2.Tu rn the bobbin case as the direction shown by arrow
Bunt il to the slit of throat plate ;
3.Lo os en the screw , the move the adjusting plate
of in ne r hook guide as arrow shown direction,assure
the c le arance between the inner hook guide and the
bobb in case flange is about 0.1~0.15mm.
①
④
⑤ ⑥
0.1~0.15mm
①
②
③
④
⑤
⑥
A
BB
B
22.A djust ing th e lengt hway s posit ion of n eedle b ar fra me(Fi g.20)
1.Adjusting the relationship between the inner presser
foot bar and pressing bar:
a.Adjust the stitch dial to min.figure;
b.Loosen the screw , adjust the distance between
theinner presser foot bar and pressing bar to
7.5mm.
Note:Dont make any clearance at axis direction of
needle bar frame.
2.Adjusting the relationship between the feed dog and
needle bar:
a.Adjust the stitch dial to min.figure;
b.Loosen the screw ;
c.Adjust the position of feed dog to make the needle
ali gn with the center of needle hole on the throat
plate(towards to the operator slightly).
①
③
③
①
②
7.5mm
23.S afet cl utch d evice (F.2 1)
If th e h ook blocks the thread when running ,the safety
clut ch device will work, which make the lower timing
pull ey rotate without load.
1.Re st ore as following order:
a.cl ea n the thread blocked in the hook;
b.Pr es s the button and turn the hand wh ee l a t r ev er se
dire ction.
2.Ad ju sting the force of safety clutch:
Turn th e screw clockwise(A directi on ) t o i nc re as e
the f or ce, contary, turn the screw counter-clockwise(B
dire ct ion)to decrease the force.
①
②
24.R eload ing th e timin g belt (Fig. 22)
1.Un lo ading the timing belt:
a.Lo os en the screw , , , , ;
b.Ta ke the hand wheel and bushing down;
c.Pu ll the feed lever , outward to make the timing
belt have enough space to pass through;
d.Ta ke down the belt and take it out from the bush lole of
uppe r shaft.
2.Re lo ading the timing belt;
a.Th e l oading order of timing belt is the reverse order
of un lo ading;
b.Ad ju sting the timing relationship between upper
shaf t and lower shaft;
Turn th e hand wheel to lift the thread take-up lever to
its h ig hest position, turn the lower shaft to make the first
scre w o n the collar align with the mark on the
rear bu shing of lower shaft,under this condition, install
the b el t on the lower timing pulley .
① ② ③ ④ ⑤
⑥ ⑦
⑨
⑧
⑩
①
②
B
A
③
④
⑤
⑥
⑦
⑧
⑨
⑩
①
②
25.T roubl e shoo ting
1.Th re ad breakage
(thr ea d wear and
tear )
2.Sk ip s titch
3.Lo os e stitch
Troubl e
Causes
Soluti on
① Thre ad in g co ur se ,needle tip, hook blade
tip or t hr ea d pa ss ing groove on the throat
plat e is r ou gh .
② Too la rg e ne ed le t hread tension.
③ Too bi g cl ea ra nc e of inner hook guide.
④ coll is io n be tw ee n needle and hook guide
tip.
⑤ Too sm al l ne ed le t hread tension.
⑥ TOOl ar ge o r to o sm all stroke thread take
-up sp ri ng t en si on
⑦ Not ti mi ng b et we en needle and hook.
① Too big clearance bet ween needle and
the tip of inner hook bla de.
② Not timing between ne edle and hook.
③ Too small pressure on t he outer presser
foot.
④ the height of needle ba r is not enough.
⑤ No effect of needle gua rd plate.
⑥ Wrong needle size.
⑦ Wrong needle thread ing.
⑧ Rotary hook is scrape d.
① The thread passing parts are not smooth.
② the bobbin cannot rotate smoothly.
③ Too big clearance of inner hook guide.
④ Too weak tension of bobbin thread.
⑤ too tighten when winding bobbin thread.
⑥ bobbing thread doesn't pass the thread
tension spring on the bobbin case
Get ri d of t he burr on the hook blade tip
and po li sh the thread passing groove on
the th ro at plate with fine emery cloth.
Adju st t he needle thread to proper tension.
Decr ea se the clearance,refer to21.
Adju st ing the inner hook guide.
Rdfe r to 1 9. Adjusting the needle and
hook .
Adju st t he needle thread to proper tension.
Decr ea se the tension of thread take-up
Spri ng a nd increase the spring stroke.
Refe r to 1 9. Adjusting the needle and hool.
Refe r to 19.Adjusting the needle and hook.
Refe r to 19.Adjusting the needle and hook.
Tigh ten the pressure screw.
Refe r to 19.Adjusting the needle and hook.
Refe r to 20.Adjusting the needle guard
plat e.
Chan ge a proper needle.
Refe r to 12.Threading the needle thread.
Get ri d of the burr on the hook guide tip
with f ine emery cloth.
Polish them with fine emery cloth.
Reset the bobbin and rotary hook.
Refer to 21. Adjusting the inner hook
guide.
Adjust the bobbin thread tension properly.
Decrease the tension when winding.
Threading the bobbin thread correctly.
1.C asting co mponent s
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
25
33
46
47
48
1.C asting co mponent s
Ref.NO.
Parts No.
Name of parts
Qty.
Remarks
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
50WF2-004
16WF1-059
50WF2-005
13WF2-008
50WF2-008
50WF2-009
1WF-038
50WF2-010
16WF2-012
7WF5-017
50WF2-013
50WF2-012
50WF2-011
50WF2-019
50WF2-020
7WF4-004
50WF2-014
16WF2-015
50WF2-021
19WF4-002
50WF2-022
1WF1-026
16WF2-015
50WF2-015
50WF2-016
50WF2-023
106WF2-001
50WF2-024
50WF2-027
106WF2-002
50WF2-028
50WF2-029
50WF2-031
50WF2-032
50WF2-030
50WF2-025
50WF2-026
50WF2-003
50WF3-090
50WF3-091
50WF1-055
50WF2-006
50WF2-007
1WF1-016
22WF5-027
Face plate
Screw
Gear cover
Screw
Screw
Rubber plug
Thread take-up lever cover
Screw
Connecting hook
Thread guide(middle)
Screw
Side plate
Wing bolt
Screw
Oil pan
Felt
Oil aick
Screw
Thread guide(upper)
Screw
Take-up oil splasher
Screw
Take-up spring adjusting plate
Screw
Screw
Throat guide(lower)
Felt
Throat pate base
Throat plate base
Screw
Throat plate
Screw
Left side plate
Screw
Bed slide
Right side plate
Lower shaft front cover
Screw
Machine base
Rubber plug
Oil tube
Oil tube
Oil tube
hinge
Throat plate base
Screw
Cylinder bed cover(lower)
Left screw
Right screw
1
2
1
2
8
1
1
2
1
1
4
1
1
1
1
1
1
2
1
2
1
1
1
1
2
1
1
1
1
2
1
1
2
1
4
1
1
1
3
1
2
1
1
1
1
1
4
1
1
1
SM9/ 64” ×40
SM9/ 64 ”×40
GB70 -8 5 M 8 ×20
SM11 /6 4”×40
SM11 /6 4”×40
SM9/ 64 ”×40
SM9/ 64 ”×40
SM9/ 64 ”×40
SM9/ 64 ”×40
SM11 /6 4”×40
SM9/ 64 ”×40
SM11 /6 4”×40
#1
#1SM 11 /6 4”×40
SM9/ 64 ”×40
SM9/ 64 ”×40
SM11 /6 4”×40
For3 41
For3 41 N
SM15 /6 4”×28
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
27
28
30
50
51
52
53
54
56
57
58
59
50
40
55
60
61
62
63
38
2.U pper shaf t and threa d take-up leaver comp onents
2.U pper shaf t and threa d take-up lever compo nents
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
Plug
take-up lever pin
Oil wick
Screw
Oil wick
Screw
Thread take-up leaver
Feed cam
Screw
Oil wick
Take-up lever sliding block
Oil wick
Hinge screw
Needle bar crank rod
Upper shaft
Oil wick
Plug
Oil wick
Crank pin
Needle bar crank
Screw
Screw
Screw
Screw
Upper shaft bush(front)
Screw
Oil felt
Oil felt
Upper shaft bush(middle)
Screw
Oil felt
Upper shaft bush(upper)
Set screw
Screw
Screw
Screw
Upper shaft bearing bush
Screw
Upper shaft bush(rear)
Bearing
Reataining collar
Hand wheel
Screw
Screw
Timing belt
Spring pin
Timing pulley(lower)
Spring ring
Screw
Screw
Safety clutch push button
Push button cylinder
Safety clutch disc
Safety base
Spring
Safety clutch spring
Safety clutch hook
Safety clutch counter-hook
Counter-hook spring
Safety clutch link
Safety clutch link pin
SM15 /6 4”×2 8
16WF-010
50WF1-022
50WF1-004
50WF1-005
50WF3-043
18227
50WF1-006
50WF1-062
50WF1-057
50WF1-015
50WF1-014
50WF1-008
50WF1-011
50WF1-009
50WF1-013
50WF1-012
50WF1-010
50WF1-016
50WF1-019
50WF1-017
50WF1-018
18227
50WF3-034
50WF1-062
50WF1-024
50WF1-025
50WF1-013
50WF1-019
50WF1-035
50WF1-021
50WF1-022
50WF1-020
50WF1-023
50WF1-028
50WF1-019
50WF1-029
50WF1-027
50WF1-032
16WF1-043
21WF6-007
50WF1-030
50WF1-051
50WF1-053
50WF1-052
50WF1-034
16WF3-046
22WF1-013
22WF1-018
22WF1-016
22WF1-014
22WF1-017
2
1
1
2
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
2
1
1
1
1
1
1
1
2
1
2
1
1
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
SM15 /6 4”×2 8
SM1/ 4”×4 0
SM15 /6 4”×2 8
SM9/ 32” ×28
SM9/ 32” ×28
SM9/ 32” ×28
SM9/ 32” ×28
SM1/ 4”×4 0
GB89 4. 2- 86 2 6
15×3 5 11(2 02)×
SM15 /6 4”×2 8
SM15 /6 4”×2 8
GB87 9- 86 2×1 0
SM9/ 64” ×40
SM5/ 16” ×24
Ref.NO.
Parts No.
Name of parts
Qty.
Remarks
1
2
3
4
5
6
7
8
9
10.11.12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43.44.45.46.47
48
49
37
38
50
52
53
54
55
56
57
58
59
60
61
62
63
51
57
3.N eedle bar a nd hook dri ving shaft componen ts
3.N eedle bar a nd hook dri ving shaft componen ts
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
Needle bar rocking frame assembly
Needle bar rocking frame shaft
Needle bar slide blockPin
Needle bar rocking frame
Felt
Retainer
Rocking shaft bush(front)
Rocking shaft bush(rear)
Washer
Washer
Washer
Washer
Screw
Rocking shaft crank
connecting rod
Hinger screw
Nut
Feed shaft crank
Screw
Screw
Needle bar
Needle bar connection
Felt
Screw
Needle
Screw
Needle bar thread guide
Bobbin
Rotary hook
Inner hook guide
Slide block
Slide block pin
]Screw
Screw
Adjusting plate
Screw
Washer
Hook shaft saddle assembly
Hook shaft saddle
Hook shaft saddle
Hook shaft bush(upper)
Hook shaft bush(lower)
Washer
Washer
Washer
Washer
Washer
Hook shaft gear
Lower shaft
Feed cam
Screw
Lower shaft bevel gear
Lower shaft bush(front)
Oil felt
Lower shaft bush(rear)
Screw
Screw
Felt
Felt
Lower shaft collar
Screw
Oil wick
Felt
GB11 7- 86 A 5×28
50WF3-001
50WF3-002
50WF3-003
50WF3-004
50WF3-005
50WF3-006
50WF3-007
50WF3-008
50WF3-010
50WF3-009
50WF3-011
50WF3-012
50WF3-013
50WF3-014
34T5-540
36T5-008E5
50WF1-001
50WF1-003
22-WF3-014
22T2-017
50WF1-002
33T1-027
50WF1-047
50WF1-048
50WF1-046
16WF2-017
50WF1-049
50WF1-050
106WF1-001
50WF5-045
50WF1-044
50WF1-043
50WF1-031
50WF3-016
50WF3-017
50WF1-040
50WF1-036
50WF1-037
50WF1-038
50WF1-022
50WF1-041
50WF1-039
50WF1-042
17027
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
3
1
1
1
2
1
1
T=1. 5
T=1. 35 # 1
T=1. 65 # 1
T=1. 65
SM15 /6 4”×2 8
SM15 /6 4”×2 8
SM11 /6 4”×4 0
SM9/ 64” ×40
DP×17
SM1/ 8”×4 0
SKRT 34 1- NR
GB95 -8 5 5
GB70 -8 5 M5×1 2
SM9/ 64” ×40
For3 41
For3 41 N
T=1. 88 # 1
T=1. 92 # 1
T=1. 96 # 1
T=2. 00 # 1
T=2. 04 # 1
SM15 /6 4”×2 8
SM1/ 4”×4 0
SM15 /6 4”×2 8
SM11 /6 4”×4 0
Ref.NO.
Parts No.
Name of parts
Qty.
Remarks
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
4.P resser fo ot compon ents
4.P resser fo ot compon ents
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
Presser bar
Presser bar lower bush
Screw
Screw
Outer presser foot assembly
connecting pin roller
Presser bar bracket guide
Guide plate base
Pressure adjustment screw
Nut
Presser spring
Hand lifter
Hand lifter pin
Hinge screw
Screw
Presser lifting lever base
Screw
Spring
Thread release guide assembly
Presser bar lifting lever
Hinge screw
Screw
Screw
SM15 /6 4”×28
22WF3-005
50WF4-001
50WF1-022
22WF3-014
50WF4-002
50WF4-011
50WF4-017
50WF4-015
1KT4-001
1KT4-002
50WF4-006
50WF4-007
50WF4-008
50WF4-014
16034
50WF4-009
50WF4-010
50WF4-013
50WF4-012
50WF4-018
50WF4-019
22WF2-017
50WF4-016
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
3
1
SM9/ 64 ”×28
SM11 /6 4”×40
SM15 /6 4”×28
SM3/ 16 ”×32
Ref.NO.
Parts No.
Name of parts
Qty.
Remarks
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