Reliable 4300CW User manual

INDUSTRIAL SEWING MACHINE INSTRUCTION MANUAL
4300CW

CONTENTS
1.Brief instruction..............................................1
2 . M a i n s p e c i f i c a t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
3.Operation preparation..............................................1
4. In st al li ng th e kn ee li ft er me ch an is m. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .1
5.Lubrication.................................................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
17.Adjusting the height of presser foot.........................................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
20.Adjusting the needle guard plate.....................................8
21.Adjusting the inner hook guide.......................................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
25.Ttrouble and remedy...................................10
1.Casting components..........................................11-12
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.Thread tension components.......................................23-24
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. Opera ti on pr ep arati on
1. Brief i ntrod uc tion 1. Main sp ec ifi ca tion
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
walk i n g f o o t ; a n d high pr e sser fo o t s t r o k e a n d l i f t e r ass u 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 mu 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 ass ures safe opera tion .
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 vari ous arc and curved materi als. .
2000s.p.m
MSK-1341B
6mm
33.36mm
6.5mm by hand
15mmby knee
Slide type
Large hook
Dp×1 7 1 4"~24"(stan d ard23")
Oiled by hand
400 W ( special for sew i ng machine 2P)
Medium,heavy,extra heavy
weight materials
Befre first operate the machine,please clean the machi ne thoroughly in order to weed out the
dust and frlly lubricate the machine.
Please confirm if the power will be used is suitable for the designed voltage.
The rotating direction of the machine is counter-clock w ise when observed face to the hand wheel.
Before turn over the machine head,please take down the kne e lifter chain hook.
Before trial running,please take down the bobbin and needle.
Please control the sewing speed under 1800s.p.m within t he first operation month.
Only after the machine stops,then the hand wheel can be operated.
4. Insta ll ing t he k nee lif ter mec hanis m(Fig .1)
When use the knee lifte r pedal,plea se use the screw
to fi x the knee lifter l ever .
Knee lifter leaver and screw are packed in the a c-
cess ory carton.



272mm
61mm
100.5mm
33.5mm
① ②
Max.sewing s pee d
Max.stitch l eng th
Needle bar str oke
Presserfoo t lif t
height
Thread take- up le ver
Hook
Needle
Lubrication
Motor Power
Abblication
To center of V-belt

5. Lubri ca tion( Fig.2 )
1.Before runni ng,please fill the oil at the places as
arrow shown.
2.Lubricatin g the hook and hook shaft saddle.
Move the bed slide ,fill the oil int the hole A two or
three drops ever y day,fill the oil into the felt B four
or five drops.
3.Lubricatin g the feed dog support
Before running ,please fill the oil into holes C,D,E
two or three drops .
6.Installing the thread stand(Fig.3)
C
E
B
A
The th read stand should be lo cated on the righ t backside
of the t able,then tighten t he 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. Insta ll ing t he n eedle (fig .6 )
①
②
A
①
②
③
④
⑤
⑥
B
A

9. Insta ll ing t he b obbin c ase(F ig.7)
1.Op en the hook cover,put t he bobbin and bob bin
Case i nto the hook;
2.pu t the bobbin case on the ho ok driving shaf t,then
lay do wn the hook cover.
10 .Wind in g the b ob bin thr ead(F ig.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 .Put th e bobbi n in to bobb in case (fig. 9)
1.Dr aw the tip of bobbi n thread to th e right ,then put the
bobbin into bobbin case;
2.Dr aw the bobbin thre ad through th e slit on th e
bobb in case,then pass through the t hread tension
spri ng,finally,draw the thread ou t of the slit .
Remi nder:if the bobbi n is put corre ctly,then draw the
bobb in thread as A,the bobbin will r otates as B.
①
②
A
B
C
①
②
③
①
②
B
A

12 .Thre ad ing t he n eedle t hread (fig. 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 .Adju st ing t he s titch l ength (Fig. 11)
Turn the stitch dial co unter-clock wise or clockwise to
adju st the stitch leng th. The figur e on the dial is the
stit ch length.(mm)
Reve rse feed stitchin g
1.Pr ess the feed leave rdownward;
2.Wh en press the feed l ever downw ard, the feed ing is
reve rse;
3.Re lease the feed lev er, the machi ne recovers norma l
feed ing again.
②
14 .Thre ad t ens io n(Fig .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
BA
①
②
D
C

15 .Thre ad t ake -u p sprin g(fig .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 .Adju st ing t he p ressu re of pre sser fo ot(Fi g.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 .Adju st ing t he h eight o f press er foot (fig. 15)
1.Th e 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.Us ually, 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.Ad just the feed crank to leftward(A directon)
to increase the presser foot stroke.contrary,adjust
the feed crank to rightward (b direction) to
decrease the presser foot stroke.
①
②
③
③
①②
③
④
⑤
Standard
25mm
BA
①
②
①
B
AAA
②③
B
A

18 .Adju st ing t he h eight o f feed do g(Fig .16)
The s tandard position of feed dog i s 1mm higher t han the
surf ace of throat plat e .
Plea se adjust it as fol owing order a ccording to sewin g
requ irement or after c hange a new fe ed dog:
1.Pl ease confirm the h ighest posit ion of feed dog;
2.loosen the screw ;
3.Th e height can be adj ustd by turni ng eccentric pin( P22).
4.Af ter the requred he ight is got, t ighten the screw .
①
②
③
③
19 .Adju st ing t he n eedle a nd hook (Fig. 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
②③
④ ⑧⑧
①
55.2mm
④
⑤
0~0.05mm
⑥
⑦
1.7mm
2.4mm
0~0. 05mm

20 .Adju st ing t he n eedle g uard pl ate(F ig.18 )
Afte r changing hook , p lease confir m the position of
need le guard plate. Th e standard po sition of needle g uard
plat e is that needle gu ard plate is touched with the
flan k side of needle slightly, if not,bend the plate and
adju st the position:
1.If the needle guard p late bends in ward, please a dju st
the p late outward with a screwdrive r;
2.If the needle guard p late bends ou tward,please adj ust
the p late inward with a screwdriver ;
②
①
0~0.05mm
①
②
21 .Adju st ing t he i nner ho ok guid e(Fig .19)
1.Tu rn the hand wheel t o make the inn er hook guide
reac h its final positi on;
2.Tu rn the bobbin case as the direct ion shown by arrow
Bunt il to the slit of th roat plate ;
3.Lo osen the screw , the move the ad justing plat e
of in ner hook guide as a rrow shown di rection,assure
the c learance between the inner hoo k guide and the
bobb in case flange is a bout 0.1~0.1 5mm.
①
④
⑤ ⑥
0.1~0.15mm
①
②
③
④
⑤
⑥
A
BB
B
22 .Adju st ing t he l ength ways po sitio n of need le bar fr ame(F ig.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
7.5m m

23 .Safe t clutc h de vice( F.21)
If th e hook blocks the t hread when ru nning ,the safety
clut ch device will wor k, which make the lower timing
pull ey rotate without load.
1.Re store as followin g order:
a.cl ean the thread blo cked in the ho ok;
b.Pr ess the button and turn the ha nd wheel at re verse
dire ction.
2.Ad justing the force of safety clu tch:
Turn the screw clockwise(A direc tion) to incr ease
the f orce, contary, tu rn the screw c ounter-clockwis e(B
dire ction)to decreas e the force.
①
②
24 .Relo ad ing t he t iming b elt(F ig.22 )
1.Un loading the timin g belt:
a.Lo osen the screw , , , , ;
b.Ta ke the hand wheel and b ushing down;
c.Pu ll the feed lever , out ward to make t he timing
belt have enough space to pass thro ugh;
d.Ta ke down the belt an d take it out f rom the bush lole o f
uppe r shaft.
2.Re loading the timin g belt;
a.Th e loading order of timing belt i s the reverse orde r
of un loading;
b.Ad justing the timin g relationsh ip between upper
shaf t and lower shaft;
Turn the hand wheel to l ift the threa d take-up lever to
its h ighest position, turn the lowe r shaft to make the first
scre w on the collar align with the m ark on the
rear bushing of lower s haft,under t his condition, in stall
the b elt on the lower ti ming pulley .
①②③④⑤
⑥ ⑦
⑨
⑧
⑩
①
②
B
A
③
④
⑤
⑥
⑦
⑧
⑨
⑩
①
②

25 .Trou bl e sho ot ing
1.Th read breakage
(thr ead wear and
tear )
2.Skip stitch
3.Loose stitch
Trouble Causes Solution
① Thre ading course, need le tip, hook blad e
tip or t hread passing g roov e on the throat
plat e is rough.
② Too la rge needle thre ad ten sion.
③ Too bi g clearance of in ner ho ok guide.
④ coll ision between n eedl e and hook guide
tip.
⑤ Too sm all needle thre ad ten sion.
⑥ TOOl arge or too small s trok e thread take
-up sp ring tension
⑦ Not ti ming between ne edle a nd hook.
① Too big clearanc e between nee dle and
the tip of inner hoo k blade.
② Not timing betwe en needle and h ook.
③ Too small pressu re on the outer p resser
foot.
④ the height of need le bar is not eno ugh.
⑤ No effect of needl e guard plate .
⑥ Wrong needle siz e.
⑦ Wrong needle thr eading.
⑧ Rotary hook is scr aped.
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 the burr on the hook bla de tip
and po lish the thread passi ng groove on
the th roat plate with fine em ery cloth.
Adju st the needle thread to p roper tension .
Decr ease the clearance, refer to21.
Adju sting the inner hook gu ide.
Rdfe r to 19. Adjusting the ne edle and
hook .
Adju st the needle thread to p roper tension .
Decrease the tension of thread take-up
Spri ng and increase the spr ing stroke.
Refe r to 19. Adjusting the ne edle and hool.
Refe r to 19.Adjusting the n eedle and hook.
Refe r to 19.Adjusting the n eedle and hook.
Tigh ten the pressure scre w.
Refe r to 19.Adjusting the n eedle and hook.
Refe r to 20.Adjusting the n eedle guard
plat e.
Chan ge a proper needle.
Refe r to 12.Threading the n eedle thread.
Get ri d of the burr on the hook gui de tip
with f ine em ery 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.Ca stin g comp onen 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
25
33
46
47 48

1.Ca stin g comp onen ts
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 p late
Screw
Gear c over
Screw
Screw
Rubb er plug
Thre ad take-up lever co ver
Screw
Connecting hook
Thre ad guide(middle)
Screw
Side p late
Wing b olt
Screw
Oil pa n
Felt
Oil ai ck
Screw
Thre ad guide(upper)
Screw
Take -up oil splasher
Screw
Take -up spring adjusting plate
Screw
Screw
Thro at guide(lower)
Felt
Thro at pate base
Thro at plate base
Screw
Thro at plate
Screw
Left s ide plate
Screw
Bed sl ide
Righ t side plate
Lowe r shaft front cover
Screw
Mach ine base
Rubb er plug
Oil tu be
Oil tu be
Oil tu be
hinge
Thro at plate base
Screw
Cyli nder bed cover(lo wer)
Left s crew
Righ t 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
GB70-85 M8 ×20
SM11/64”×40
SM11/64”×40
SM9/64”×40
SM9/64”×40
SM9/64”×40
SM9/64”×40
SM11/64”×40
SM9/64”×40
SM11/64”×40
#1
#1SM11/64”×40
SM9/64”×40
SM9/64”×40
SM11/64”×40
For341
For341N
SM15/64”×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.Up per sh aft an d thre ad tak e-up l eave r comp onen ts

2.Up per sh aft an d thre ad tak e-up l ever c ompo nent 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
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 leve r 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 bu sh(front)
Screw
Oil felt
Oil felt
Upper shaft bu sh(middle)
Screw
Oil felt
Upper shaft bu sh(upper)
Set screw
Screw
Screw
Screw
Upper shaft be aring bush
Screw
Upper shaft bu sh(rear)
Bearing
Reataining collar
Hand wheel
Screw
Screw
Timing belt
Spring pin
Timing pulley(lower)
Spring ring
Screw
Screw
Safety clutc h push button
Push button cylinder
Safety clutc h disc
Safety base
Spring
Safety clutc h spring
Safety clutc h hook
Safety clutc h counter-hook
Counter-hook spring
Safety clutc h link
Safety clutc h link pin
SM15 /64”×28
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 /64”×28
SM1/ 4”×40
SM15 /64”×28
SM9/ 32”×28
SM9/ 32”×28
SM9/ 32”×28
SM9/ 32”×28
SM1/ 4”×40
GB894.2-86 26
15×3 5 11(202)×
SM15 /64”×28
SM15 /64”×28
GB87 9-86 2×10
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.Ne edle b ar and h ook dr ivin g shaf t comp onen ts

3.Ne edle b ar and h ook dr ivin g shaf t comp onen 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 A5×28
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 /64”×28
SM15 /64”×28
SM11 /64”×40
SM9/ 64”×40
DP×17
SM1/ 8”×40
SKRT341-NR
GB95 -85 5
GB70 -85 M5×12
SM9/ 64”×40
For3 41
For341N
T=1. 88 #1
T=1. 92 #1
T=1. 96 #1
T=2. 00 #1
T=2. 04 #1
SM15 /64”×28
SM1/ 4”×40
SM15 /64”×28
SM11 /64”×40
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.Pr esse r foot c ompo nent s

4.Pr esse r foot c ompo nent s
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 a ssembly
Presser bar lifting lever
Hinge screw
Screw
Screw
SM15/64”×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
SM11/64”×40
SM15/64”×28
SM3/16”×32
Ref.NO.
Parts No. Name of parts Qty. Remarks