Brother DB2-B721, DB2-B723, DB2-B722, DB2-B724 Manual

1.	«: 0) ;$: ,i , 1999.$6 ~ 0) T - 9 ,: £-::5 ~' -r 1'1=,t;x ~ ti t.: t 0) "f -t o
2.	ffB~,i-f'1s-~ ~ ,: aiBti:SE: ~ ti{> ~.g-tf ~ ~J *-t o
3.	~Jl.$11L"f fm*'.a"t {> ffB~,i, c===J ~*i"f 7F ~-rs ~J *-t o
	13

A . ~1*fffl1J . . . . . . . . . . . . . . . . . . . . . .		1
8 . J:.~·~fSJ!~1J . . . . . . . . . . . . . . . . .		3
C . ~ti! )	fffl1J . . . . . . . . . . . . . . . . . . . .	7
1
D. f!J1I~1J . . . . . . . . . . . . . . . . . . . . . .		9
E . i! ) ~1* . . . . . . . . . . . . . . . . . . . . . .		11
1
F . ~J:.'7fffl1J . . . . . . . . . . . . . . . . . . . .		19
G . ~fifffl1J
(B722, B724: -300 , -400, -900} . . . . .		19
H . 1J ? fffl1J . . . . . . . . . . . . .. . . . . . . .		21
J1 . !ijmfr:i5t~1* . . . . . . . . . . . . . . . . . .		25
J2 . !ijmtr:i¼t~1* . . . . . . . . . . . . . . . . . .		29
K. *ii:,,~1J . . . . . . . . . . . . . . . . . . . .		31
L1 . *m )	fffl1J (8722) .. . . . .. . . . . . .	35
1
L2 . *-l;J] )	~1J (8724) . . . . . . . . . . . . .	39
1
M . f!Jl I J:.'7fffl1J
(8722, 8724: -900 ) . . . . . . . . . .		43
N . **I:/. ~1J (8722, 8724) . . . . . . . .		43
P. *U1 ~1J
(8722, 8724: -400 , -900) . . . . .		45
Q. ~t{u:ffl~t:l:1~~1*
(8722, 8724) . . . . . . . . . . . . . . . . . .		47
R . :::J :., I--	Cl - Jt., ;Jf ·;,, ? 7- m,1J
(8722, 8724) . . . . . . . . . . . . . . . . . .		47

S . I::: -tf 7- 1'·;,7 ~1J
(8722, 8724: -900)			..	. . . . . . . . . .	49
T. ~fi.7- 1 ·;, 7~1J
(8722, 8724)		. . . . . . .	.	. .. . . . . . . .	49
u. i~Hi~1J (=-.t 7" :1/ :3 :., ffB~) . . . . .					51
V1 . ~Jinj!Jl I J:.1f		~1J
(8722, 8724mt:l:lffl) . .				. . . . . . . . . .	51
V2 . ~Jinj!Jl I J:.1i		~1J		:., ffB~) . .
(8722, 8724: =-.t 7" :1/			:3		53
w . *U1 -tz ·;, 1--		~1i
(8722, 8724: =-.t 7" :1/			:3	:., gB~) . .	55
Z. {-t!i~~1* .		. . . . . . . . .		. . . . . . . . . .	57
Ga 1 . 1f - ~.) $~-Ii~
(8721, 8722)		. . .. . . . ..		. . . . . . . . .	61
Ga2. 7- v·gB~-1[~
(8721, 8722)		. . . . . . . .	.	. . . . . . . . .	62
Ga3 . 1i - :JffB~-~~
(8721, 8722)		. . .. . . . .	.	. . . . . . . . .	63
J..:	~ •. tLB C	~.EE
Ga4 . ·1 -	1/ i:i 1:::11::i-.AL:t-~

(8723, 8724) . . . . . . . . . . . . . . . . . .	64
Wa. tf1s-7 ~·;t., . . . . . . . . . . . . . . . . . • .	65
~ 51 ...... .. ...............	66

From the library of: Superior Sewing Machine & Supply LLC

1

Notes for using this parts book

1.This book was prepared based on information available in June 1999.

2.Parts are subject to changes in design without prior notice.

,-----,

3. Parts supplied as complete assemblies are circled by a dotted line ~----

~ .

CONTENTS

A . Machine body ...................... .
B . Upper shaft and thread take-up
mechanism . . . . . . . . . . . . . . . . . . . . . . . . . .	3
C. Needle feed mechanism . . . . . . . . . . . . . .	7
D . Presser foot mechanism . . . . . . . . . . . . . . .	9
E . Feed mechanism . . . . . . . . . . . . . . . . . . . . .	11
F. Knee lifter mechanism . . . . . . . . . . . . . . . .	19
G . Quick reverse mechanism
(B722, B724: -300, -400, -900) . . . . . . .	19
H. Rotary hook mechanism . . . . . . . . . . . . . .	21
J1 . Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . .	25

Q . Synchronizer (B722, B724) . . . . . . . . . . . . .	47
R . Control box mechanism (B722, B724)	47
S. Knee switch mechanism
(B722, B724: -900) . . . . . . . . . . . . . . . . . . .	49
T. Quick reverse switch mechanism
(B722, B724) . . . . . . . . . . . . . . . . . . . . . . . . .	49
U . Foot switch pedal mechanism
(Option parts) ...... .. .......... . . ...	51
V1. Presser foot lifting solenoid set
(B722, B724: -900 ) . . . . . . . . . . . . . . . . . .	51
V2 . Presser foot lifting solenoid set
(B722, B724: Option parts) . . . . . . . . . . . .	53

	J2 . Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . .	29	W . Thread wiper set
	K. Threading mechanism	31	(B722, B724: Option parts) . . . . . . . . . . . .	55
	L1 . Thread trimmer mechanism (B722)	35	Z . Accessories . . . . . . . . . . . . . . . . . . . . . . . . . .	57
	L2. Thread trimmer mechanism (B724)	39	Ga 1 . Gauge parts List (B721, B722) . . . . . . . . . .	61
	M. Presser foot lifter mechanism		Ga2 . Gauge parts List (B721, B722) . . . . . . . . . .	62
	(B722, B724) . . . . . . . . . . . . . . . . . . . . . . . . .	43	Ga3. Gauge parts List (B721, B722) . . . . . . . . . .	63
	N. Tension release mechanism		Ga4 . Gauge parts List (B723, B724) . . . . . . . . . .	64
	(B722, B724: -400, -900) . . . . . . . . . . . .	43	Wa. Warning labels	65
	P. Thread wiper mechanism		Index	66
	(B722 & B724: -400, -900)	45

ii	From the library of: Superior Sewing Machine & Supply LLC

Hinweise zur Verwendung dieser Teileliste

1.Dieses Buch basiert auf den lnformationen vom Juni 1999.

2.Modellanderungen sind vorbehalten .

r-----,

3.Die Teile, die als kompletter Satz geliefert werden, sind mit einer ""I ----.JI gestrichelten Linie umrandet.

INHALTSVERZEICHNIS

A • Maschinengehause
B . Obere Welle und	3
Fadenabnahmevorrichtung
C. Nadelstange transportvorrichtung . . . . .	7
D . StoffdruckerfuB . . . . . . . . . . . . . . . . . . . . . .	9
E. Transportvorrichtung . . . . . . . . . . . . . . . . .	11
F. Kniehebel . . . . . . . . . . . . . . . . . . . . . . . . . . .	19
G. Umkehr
(B722, B724: -30D, -40D , -90D) . . . . . . .	19
H. Greifervorrichtung . . . . . . . . . . . . . . . . . . .	21
J1 . Schmierung . . . . . . . . . . . . . . . . . . . . . . . . .	25
J2 . Schmierung . . . . . . . . . . . . . . . . . . . . . . . . .	29
K . Fadenfuhrungsvorrichtung . . . . . . . . . . .	31
L1 . Fadenabschneidevorrichtung (B722)	35
L2 . Fadenabschneidevorrichtung (B724)	39
M. Stoffhalterhebervorrichtung
(B722, B724) . . . . . . . . . . . . . . . . . . . . . . . . .	43
N. Spannungsverminderungsvorrichtung
(B722, B724: -40D, -90D) . . . . . . . . . . . . .	43
P. Fadenwischvorrichtung
(B722, B724: -40D, -90D) . . . . . . . . . . . . .	45

Q . Synchronisator (B722, B724) . . . . . . . . . . .	47
R. Schaltkasten (B722, B724) . . . . . . . . . . . . .	47
S. Knieschalter (B722, B724: -90D) . . . . . . .	49
T. Umkehrschalter (B722, 8724) . . . . . . . . . .	49
U . FuBbetatigung (Sonderzubehor) . . . . . .	51
V1 . Solenoidsatz fur die anhebung des
stoffdruckerfuBes
(B722, B724: -90D) . . . . . . . . . . . . . . . . . . .	51
V2 . Solenoidsatz fur die anhebung des
stoffdruckerfuBes
(B722, B724: Sonderzubehor) . . . . . . . . .	53
W. Fadenspannvorrichtung
(B722, B724: Sonderzubehor) . . . . . . . . .	55
z. Zubehor . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	57
Ga1. Lehrenliste(B721,B722) . .............	61
Ga2. Lehrenliste (B721, B722) . . . . . . . . . . . . . .	62
Ga3. Lehrenliste (B721, B722) . . . . . . . . . . . . . .	63
Ga4. Lehrenliste (B723, B724) . . . . . . . . . . . . . .	64
Wa . Warnschilder . . . . . . . . . . . . . . . . . . . . . . . .	65
Verzerzeichnis . . . . . . . . . . . . . . . . . . . . . . .	66

From the library of: Superior Sewing Machine & Supply LLC

iii

Notes sur l'uti lisat ion de ce manuel d e pieces detachees

1.Ce manuel a ete fait d'apresles renseignements valables au mois de Juin 1999.

2.Les pieces peuvent etre sujettes a des modifications sans preavis.

3.Les pieces fournies en tant qu'assemblagescomplets sont encadrees avec un trait

r - ---,

pointilleL ____ J .

TABLE DES MATIERES

A . Corps de la machine . ... . . .. ....... .. .
B . Mecanisme de l'arbresuperieur et
releveur de fil . . . . . . . . . . . . . . . . . . . . . . . .	3
C. Mecanisme de l'entrainement
aiguille . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	7
D . Mecanisme de pied presseur . . . . . . . . . .	9
E. Mecanisme de l'entrainement . . . . . . . . .	11
F. Mecanisme de genouillere . . . . . . . . . . . .	19
G . Mecanisme de marche arriere rapide
(B722, B724 : -30D, -40D , -90D) . . . . . . .	19
H . Mecanisme du crochet rotatif . . . . . . . . .	21
J1 . Lubrification . . . . . . . . . . . . . . . . . . . . . . . . .	25
J2 . Lubrif ication . . . . . . . . . . . . . . . . . . . . . . . . .	29
K. Mecanismedel'enfilage .......... . ...	31
L1 . Mecanisme de coupe-fil (B722) . . . . . . . .	35
L2. Mecanisme de coupe-fil (B724) . . . . . . . .	39
M . Mecanisme de leveur du pinceur
(B722, B724) . . . . . . . . . . . . . . . . . . . . . . . . .	43
N . Mecanisme de la Iache de tension
(B722, B724) . . . . . . . . . . . . . . . . . . . . . . . . .	43
P. Mecanisme de tire-fil
(B722, B724: -40D, -90D) . . . . . . . . . . . . .	45
Q . Synchronisateur (B722, B724) . . . . . . . . . .	47

R. Mecanisme du boitier de controle
(B722, B724) . . . . . . . . . . . . . . . . . . . . . .. . .	47
S. Mecanisme de interrupteur de genou
(B722, B724: -90D) . . . . . . . . . . . . . . . . . . .	49
T. Mecanisme de interrupteur de marche
arriere rapide (B722, B724) . . . . . . . . . . . .	49
U . Mecanisme de la pedale
(Pieces en option) . . . . . . . . . . . . . . . . . . . .	51
V1 . Conjunto aereo del levantador del pie
(B722, B724: -90D) . . . . . . . . . . . . . . . . . . .	51
V2. Conj unto aereo del levantador del pie
(B722, B724: Pieces en option) . . . . . . . .	53
W. Mecanisme de tire-fil
(B722, B724: Pieces en option) . . . . . . . .	55
Z . Accessoires . . . . . . . . . . . . . . . . . . . . . . . . . .	57
Ga1 . Liste des Pieces decartment
(B721, B722) . . . . . . . . . . . . . . . . . . . . . . . . .	61
Ga2. Liste des Pieces decartment
(B721, B722) . . . . . . . . . . . . . . . . . . . . . . . . .	62
Ga3. Liste des Pieces decartment
(B721,B722) ... . . .. .. . ...... . ... .... .	63
Ga4. Liste des Pieces decartment
(B723, B724) . . . . . . . . . . . . . . . . . . . . . . . . .	64
Wa . Etiquettes d'avertissement . . . . . . . . . . . .	65
Index ... . ......... . .. . . . . ...........	66

iv	From the library of: Superior Sewing Machine & Supply LLC

Notas para usar este Manual de Piezas

1.Este libro ha sido compilado basandose en los datos de que se dispon,a en junio 1999.

2.Las piezas quedan sujetas a cambios de diserio sin aviso previo.

3.Las piezas suministradas como conjuntos completos se enmarcan con una Hnea

r----	,
punteada ~----	J .

INDICE

A . Cuerpo de la maquina ..... ...... .. .. .
B . Mecanismo del arbol superior
y trirahrlos . . . . . . . . . . . . . . . . . . . . . . . . . .	3
C. Mecanismo de la alimentaci6n aguja . . .	7
D . Mecanismo de la prensa tela . . . . . . . . . .	9
E. Mecanismo de la alimentaci6n . . . . . . . .	11
F . Mecanismo de levantador de rodilla	19
G. Mecanismo de la inversi6n rapida
(B722, B724: -300 , -400 , -900 ) . . . . . . . .	19
H. Mecanismo del cangrejo . . . . . . . . . . . . . .	21
J1 . Lubricaci6n . . . . . . . . . . . . . . . . . . . . . . . . . .	25
J2. Lubricaci6n . . . . . . . . . . . . . . . . . . . . . . . . . .	29
K . Mecanismo del enhebrado . . . . . . . . . . .	31
L1 . Mecanismo de la cortadura de hiros
(B722) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	35
L2. Mecanismo de la cortadura de hiros
(B724) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	39
M . Mecanismo del levantador de mensula
de trabajo (B722, B724) . . . . . . . . . . . . . . .	43
N. Mecanismo relajador de tensi6n
(B722, B724) . . . . . . . . . . . . . . . . . . . . . . . . .	43
P. Mecanismo del limpiador de hilo
(B722, B724: -400 , -900 ) . . . . . . . . . . . . .	45
Q. Sincronizador (B722, B724) . . . . . . . . . . . .	47

R. Mecanismo de la caja de controles
(B722,B724)		47
S. Mecanismo del conmutador de rodilla
(B722, B724: -900) . . . . . . . . . . . . . . . .	. .	49
T. Mecanismo del conmutador de inversi6n
rapida (B722, B724) . . . . . . . . . . . . . . . . .	. .	49
U . Mecanismo del pedal
(Piezas opcionales) . . . . . . . . . . . . . . . . .	. .	51
V1 . Conj unto solenoide del levantador
(B722, B724: -900) . . . . . . . . . . . . . . . .	. .	51
V2 . Conjunto solenoide del levantador
(B722, B724: Piezas opcionales) . . . . .	. .	53
W. Mecanismo del limpiador de hilo
(B722, B724: Piezas opcionales) . . . . . .	.	55
Z. Accesorios . . . . . . . . . . . . . . . . . . . . . . . . . .	.	57
Ga1 . Lista d'ePiezasde calibradores
(B721, B722) . . . . . . . . . . . . . . . . . . . . . . . .	.	61
Ga2 . Lista d'ePiezasde calibradores
(B721 , B722) .... . ... .. .. .. . ........ .	.	62
Ga3. Lista d'ePiezasde calibradores
(B721, B722) . . . . . . . . . . . . . . . . . . . . . . . .	.	63
Ga4 . Lista d'ePiezasde calibradores
(B723, B724) .... . .... .. . . ... ...... . .	- .	64
Wa . Etiquetas de advertencia . . . . . . . . . . . . .	.	65
lndice . . .. ... . . ... . .... . ..... . .......		66

From the library of: Superior Sewing Machine & Supply LLC

V

A . ::E1=f~il / Machine body/ Maschinengehause / Corps de la machine/ Cuerpo de la maquina

12----

©

17--0

28

J

(0------13

@--14

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			128 131		I
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			~) ..~
	l -			®ql11?
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,--~·		I	'	129
130	·

JJU

1	From the library of: Superior Sewing Machine & Supply LLC 117-721-050

A. ::i:1*f1Hl / Machine body/ Maschinengehause / Corps de la machine/ Cuerpo de la maquina

REF .NO.	CODE	Q'TY				1:::.-- ;11	NAME OF PARTS	RN
2	104829101	1 ;t--			\'?7'.:L- 'JL		BED LEG, L
3	104830101	1	;t--		t'?r.:L 'JS		BED LEG, S
4	140704001	2		;f. JI, I- 7.14			BOLT, SM7.14
5	118672001	1	;j.:,,77.1/ { -				PUMP COVER
7	S01416000	1	;;,f"		1 JI, 3	?° IJ / ?	RING, OIL STOPPER
12	104450109	5 ::i.L.t?:.--				a	RUBBER CAP, 8
13	104832009	1	::i'.L. t! :.-- 10.7				RUBBER CAP, 10.7
14	104451109	2 ::i'.L.-t? :,,23_9					RUBBER CAP, 23.9
15	108520009	1	::i'.L.-t?:.--19.8				RUBBER CAP, 19.8
16	104821009	1	::i'.L. -t?:,, 10.5				RUBBER CAP, 10.5
17	104449009	3 ::i'.L.t?:.				--1s.s	RUBBER CAP, 15.5
18	S12717009	1		::i'.L.t?:.--		11.5	RUBBER CAP, 11.5
19	156217009	1		::i. .L. t? :.--a.s			RUBBER CAP, 8.5
20	117936009	1		::i'.L. t! /		9 .4	RUBBER CAP, 9.4
21	142274009	1		::i'.L. -t? :,, 4.2			RUBBER CAP, 4.2
23	S09621151	1		V-3'1=¥°1'$1			RULER PLATE
24	062670612	1		j-rCJ357-40X6			SCREW, PAN SM3.57-40X6
27	S02499009	1		jf'71'$1			REAR COVER
28	062681012	7	j-A::::J437-40X10				SCREW, PAN SM4.37-40X10

----------	----------1....	---~----------------------		>	------------------------------------- --
			< 8723, 8724ffl		< For "8723 & 8724" >
29	111865009	1	-t?:.--6		CAP,6
--------------------	~---		~----------------------		------------------------------------- --
128	062680812	1	j-rs. ::J 437-40X8		SCREW, PAN SM4.37-40X8
129	062760812	3	j- A:: ::J 595-28X8		SCREW, PAN SM5.95-28X8
130	157969001	1	':J..$1 ':J J.:'		STUD
131	100645003	1	-lfjj*		WASHER
---------- ----------	~---		~----------------------	>	------------------------------------- --
			<B721, B723ffl		< For "B721 & B723" >
200	S45877001	1	B F-01\.:Z-JI,?.:. ST		B-PANEL ASSY, F-0 ST
201	S34448001	2	".::r- JI, :., :l 11' 1'		PANEL SUPPORT BRACKET
202	014680622	2	7'j-I-;( .::r- V- 4.37? ;f..:.		SET SCREW, SOCKET (CP) SM4.37

117-721-050

From the library of: Superior Sewing Machine & Supply LLC

2

B . J:.$11J • X:fffiPllJ~	u
1"Tl,,.Jl1J( /			pper shaft and
/ Mecanisme de	1•
			up1:::neur
		arbre s .... .

etthreadreleveurtak de filmechanism/Mecan1smo. ObdelerearbolWellesuperiorund FadY tenab~ahmevorrichtung e-up

nrah1los

< B722,EfJ / For "B722" >

20-2

< B722 EFKA,EfJ / For "EFKA" >

20-3

	,---			lI	16 17
	1
	18~			I
	I				®
				I~
	I	1a-2		I	.
	I		8
				_)

< B723,B724,EfJ / For "B

117-722-106

3	From the library of: Superior Sewing Machine & Supply LLC

B . ...tili!ll ·'SR H~i~ / Upper shaft and thread take-up mechanism/ Obere Welle und Fadenabnahmevorrichtung

/ Mecanisme de l'arbresuperieur et releveur de fil / Mecanismo del arbol superior y trirahflos

REF.NO.	CODE	Q'TY	t: ;.., ;( 1'	NAME OF PARTS	RIV
1	545806001	1	'7'7:l?	UPPER SHAFT
2	502805001	1	'7'7:l?;(:$1Jl,L	UPPER SHAFT BUSH, L
4	140726000	1	'7'7:l? ;( :$1 Jt,M	UPPERSHAFTBUSH,M
5	013760610	1	t- ;( .t :l5.95? ;f. ~	SET SCREW, (CP) SM5.95

--------------------I'--------------------------- ------------------------------------~ --
			<B721, B723ffl >	< For "B721 & B723" >
6	146331001	1	r'J'7:l?;(:$1Jl,R	UPPER SHAFT BUSH, R
			< B722, B724ffl >	< For "B722 & B724" >
6	502524001	1	'7'7:l?;(:$1Jl,R	UPPER SHAFT BUSH, R
----------	---- ------	-- ------------------------- ------------------------------------- --
8	181916101	1	i?'Yt-:n5-?~	SET SCREW COLLAR ASSY
8-1	100251001	2	t- ;( .t :J6.35	SET SCREW, SM6.35

---------- ---------- f-- - - ~---------------------- ------------------------------------- --
			< B721-3, B722-O03ffl	>	<For "B721-3 & B722-O03">
9-1	S45808001	1 r:..-t::..-1,s;:..-11~			THREAD TAKE-UP CRANK ASSY
9-1-1	545809000	1	r:..- t::..-15 :..-1		THREAD TAKE-UP CRANK
9-1-2	100251001	2	t- ;( .t :J6.35		SET SCREW, SM6.35
			<B721-5, B722-O05.ffl >		<For "B721-5 & B722-O05" >
9-2	545810001	1	r:..-1::: .:,, -,,s;:..-1-?~		THREAD TAKE-UP CRANK ASSY
9-2-1	545811000	1 7.:,,t;";..--'77;..--'}			THREAD TAKE-UP CRANK
9-2-2	100251001	2	t- ;( ;z, 1/6.35		SET SCREW, SMG.35
			< B723, B724.ffl >		<For "B723 & B724">
9-3	545887001	1	r:..-t::..--?5:..-11~		TH READ TAKE-UP CRANK ASSY
9-3-1	545888000	1	r:..-t::..--?5:..--?		THREAD TAKE-UP CRANK
9-3-2	100251001	2	t- ;( ;z:. :J6.35		SET SCREW, SM6.35
---------- ---------- ----			----------------------- ------------------------------------- --
10	104464001	1	'./ ;( *:l7.14		SCREW, SM7.14
11	014771022	1	7'-J- t- ;( .t :l6.35? ;f. ~		SET SCREW, SOCKET (CP) SM6.35

---------- ---------- ---- ----------------------- ------------------------------------- --
			<B721-3, B722-O03.ffl	>	< For "B721-3 & B722-O03" >
12-1	534295001	1	/ \ IJ *'7I,, ;_, 7J ;_, ? ~		THREAD TAKE-UP LEVER SET
12-1 - 1	145465001	1	~ ;( ;z- ::.i'3.57L		SCREW, SM3.57 L
12-1-2	140004001	1	~ ;( i 1/3.57		SCREW, SM3.57
12-1 -3	111468001	1	r:..-1::·:..--t.t-t.t.:r. V ?		THREAD TAKE-UP SUPPORT SHAFT
12-1-4	147777000	2	=. - FJl,,X7'IJ :..- 7		NEEDLE BEARING
12-1-5	145624000	1	7.:r.Jt, t-		FELT
12-1-6	155488000	1	?~t:-=e		WICK,L=90
12-1-7	158727001	1	? ~ t:'e4X4		WICK, 4X4 L = 27
			<B721-5, B722-O05.ffl >		< For "B721-5 & B722-O05" >
12-2	S45815001	1 I\ 1) *'7I,, ;.., :h ;.., ? ~			THREAD TAKE-UP LEVER SET
12-2-1	145465001	1	~ ;( .t V3 .57L		SCREW, SM3.57 L
12-2-2	140004001	1	~ ;( .t :'..i'3.57		SCREW, SM3.57
12-2-3	111468001	1	r:..-t::..--tt-t.t.:r.:J-?		THREAD TAKE-UP SUPPORT SHAFT
12-2-4	116735000	2 =.- t,:'Jt,,x7'IJ ;_,7			NEEDLE BEARING
12-2-5	145624000	1	7 I.JI, t-		FELT
12-2-6	155488000	1?~t:'e			WICK, L=90
12-2-7	158727001	1	? ~ !::t4X4		WICK, 4X4 L = 27
			< B723, B724.ffl >		< For "B723 & B724" >
12-3	S45897001	1	/\ IJ *'7I,,;_, ;h ;_,? ~		THREAD TAKE-UP LEVER SET
12-3- 1	145465001	1	~ ;( .t V 3.57L		SCREW, SM3.57 L
12-3-2	140004001	1	~ > ;z- V 3.57		SCREW, SM3.57
12-3-3	111468001	1	r:..- t: :..--t.t-tt.:c -;; -,		THREAD TAKE-UP SUPPORT SHAFT
12-3-4	116735000	2 =-- F Jl, -"'7'IJ ;..-7			NEEDLE BEARING
12-3-5	145624000	1	7 :r.Jt, t-		FELT
117-722-106

From the library of: Superior Sewing Machine & Supply LLC

4

B . J:Wlh. ~ f:!iRA
/ M	iSl<d~ / Upper sh			e-up me h .
	ecanisme de 1·arb	re
			supeaft ·and threadeveurtak		de Iii / Mecan·,smo delere·Welleb und Fadenabnah
						ar_o~I=su=p=erior y t . . mevorrichtung
------ -~=r=ie:ur~e~tr=e~Ive					c arnsm / Ob	nrah1los

-

1

< B722 E KAm / For "EFKA" >

20-3

,---

1

18~

I

I

I

117-722-106

5	From the library of: Superior Sewing Machine & Supply LLC

B. J:ilid!·X:Hlfflf / Upper shaft and thread take-up mechanism/ Obere Welle und Fadenabnahmevorrichtung

/ Mecanisme de l'arbre superieur et releveur de fil / Mecanismo del arbol superior y trirahflos

REF.NO.	CODE	Q'TY	!:: :,, ;( 1	NAME OF PARTS	RIV
12-3-6	118768001	1	'7~!::,:	WICK, L= 150
12-3-7	158727001	1	'7 ~ !:: ,:4X4	WICK, 4X4 L = 27

13----------	---------- ----~----------------------			:>6.35				---------------------------------------
	013781012	1	I-;( ;z..					SET SCREW, (CP) SM6.35
14	110367001	1 -tf -Ji*						WASHER, PLAIN SPECIAL 8
15	102630001	1 I\ 1J ;f- '7 7' :,, -;- 1 tJ '7 ::i 7						SLIDE BLOCK, N-BAR GUIDE
--------------------	---- -----------------------							------------------------------------- --
			<B721-3, B722-O 03.ffl >					< For "B721-3 & B722-O 03"	>
16	143855001	1 I\ 1) -(		:$1	...	.. .	< l c~ 143855>	NEEDLE PLATE ........ .....	<Marked in 143855>
16	143857001	1 /\ IJ -(		:$1	······		< flc -ls- 143857>	NEEDLE PLATE .... ....... ..	<Marked in 143857>
			< B721-5, B722-O05.ffl >					<For "B721 -5 & B722-O 05" >
16	148842001	1 /\ IJ -( :$1						NEEDLE PLATE
			<B721-5, B722-O 05.ffl >					< For "B721-5 & B722-O 05" >
			< B723, B724.ffl >					<For "B723 & B724" >
16	S13101001	1 /\ IJ -(		:$1				NEEDLE PLATE
17--------------------	---- ~----------------------							------------------------------------- --
	100032004	2-tt5;z.. V°4.37						SCREW, FLATSM4.37
18	180018151	1	1	1 :$1		'7 ~		SLIDE PLATE ASSY
			A I'( J
18-1	114561001	1	1	1 :$1		'7 7 I ( ;z..		SPRING
			A /X J
18-2	122771051	2 ~ ;( ;/', ::; 2.38						SCREW, SM2.38
--------------------	---- -----------------------							------------------------------------- -- ·
			<B721, B723.ffl >					<For "B721 & B723">
20-1	145471109	1 7 - IJ						PULLEY
			< B722, B724.ffl >					< For "B722 & B724" >
20-2	S02538109	1 7 - IJ		............			<!*lift~>	PULLEY . .. . ... . .. . . . .. ..	.. . <Buit-in type>
			< B722:r. 7 tJ ffl				>	< For "EFKA of B722" >
20-3	S02539109	1						PULLEY
21--------------------	~	---	~----------------------	I- ;I. '7 *~ 595-14				------------------------------------- --
	S33689002	2 7' :$l 7						SET SCREW, (CP) SM5.95-14
			" ::t 7	:--	=1	:,,l}Hifii	"	"OPTIONPARTS "
16	118681001	1 /\ IJ -(		:$1	......		< Kc~ 118681>	NEEDLE PLATE .... ........ .	<Marked in 118681 >
16	140715001	1 I\ 1) -(		:$1			< Bc~ 140115>	NEEDLE PLATE ....... .... ..	<Marked in 140715>
16	141156001	1 /\ IJ -(		:$1	······			NEEDLE PLATE
					.....	.	< Rc~ 141156>		<Marked in 141156>
16	147954001	1 I\ 1) 1 :$1			......		< l c~1419s4>	NEEDLE PLATE ............ .	<Marked in 147954>
16	148300001	1 /\ 1) -(		:$1	......		< Rc~148300>	NEEDLE PLATE .... ..... .. ..	<Marked in 148300>
16	S01988001	1 /\ IJ -(		:$1	......		< Bc~S01988>	NEEDLE PLATE .. .. .........	<Marked in S01988>

117-722- 106

From the library of: Superior Sewing Machine & Supply LLC

6

1	~f~ I Needle feed mechanism I Nadelstange transportvorrichtung
C . Hiz )

I Mecanisme de 1•entra1nement aiguille / Mecanismo de la alimentaci6n aguja

14 15

1 2

117-721-107

7	From the library of: Superior Sewing Machine & Supply LLC

C. ,t* )	~i~ / Needle feed mechanism/ Nadelstange transportvorrichtung
1
/ Mecanisme de l'entrai nement aiguille / Mecanismo de la alimentaci6n aguja
REF.NO.	CODE	Q'TY					t: / ;( -(	NAME OF PARTS	RIV
1	S16299001		1 /\ 1)		:;t ?	I) I.,, / jJ /		NEEDLE FEED CONNECTING ROD
2	S45816001		1 1':.-i ::;6,35					SHOULDER SCREW, SM6.35
3	159486001		2 -tf'ifi					WASHER
4	110744002		1 -J- ")		~ 6.35			NUT, SM6.35
5	S45817101		1 7' :.i-\' A~					ADJUSTER
6	156264001		1 'J ?6,35X19,5					STUD, 6.35X19.5
7	014680622		1 7'-J-		~ ;( ;z, :.i'4.37? ;f. ~			SET SCREW, SOCKET {CP) SM4.37
8	159487000		1 I' iJ :;t -7 IJ ::; -7 '7 -'r					NEEDLE FEED SHAFT ARM
9	014780622		2 7'-J-~;(i'J6.3S?;f.~					SET SCREW, SOCKET {CP) SM6.35
10	S45818101		1	/ \ 1) :;t ?		1) :; ?		NEEDLE FEED SHAFT
11	159489101		1 /\ I)		:;t? 1) 'J? ;( ~ Jl,R			BUSH, RN-FEED SHAFT
12	01376061 0		1	~ ;( i V'S.95? ;f, ~				SET SCREW, {CP) SM5.95
13	159490001		1 /\ I)		:;t? 1) :.i? ;( ~ JI, L			BUSH, L N-FEED SHAFT
14	120023001		1 n5-					COLLAR
15	048120142		1	~;<'7:.i?3'7C12				RETAINING RING, EXTERNAL Cl 2
16	140092001		1 i:? ·.:1		~ n 5-			SET SCREW COLLAR
17	014680422		2 7'-J-~;(-*:.i4.37?;f.~					SET SCREW, SOCKET {CP) SM4.37
18	S45819001		1 / I 1)		:;t ?	1) '7 T? ~		NEEDLE FEED ARM ASSY
18- 1	S45820001		1 / \ 1)		:;t ?	I) '7 T		NEEDLE FEED ARM
18-2	062061616		1 -J- A;" ::i 6X 16					SCREW, PAN M6X16
19	S45823101		1 / \ 1)		*'7 ,;I { ? ~			NEEDLE BAR BRACKET ASSY
19-1	014680422		1 7'-J- ~ ;( -t, '1/4.37? ;f, ~					SET SCREW, SOCKET {CP) SM4.37
20	S45833001		1 l\ 1);f,rj,;t'-(;(~Jt,L					NEEDLE BAR BRACKET BUSH, L
21	S45834001		1 I\ )		;f, '7 ,;I -( ;( ~ Jt, R			NEEDLE BAR BRACKET BUSH, R
				1
22	S45835000		1 n-7::iv7'/-J-1'					SLIDE BLOCK GUIDE
23	062501616		1 -)-A;"::J SX16					SCREW, PAN M5X16
24	151308101		1 1.,, :--n :.-::;112.s					CONNECTING STUD, 12.5
25	014500536		2 7'-J- -7 ;f, ~ sxs					SET SCREW, SOCKET {CP) M5X5
26	S45836000		1 / \ I)		;f; 'J,;f -( 7' :., -j- -(			NEEDLE BAR BRACKET GUIDE
27	062672012		2 -J- A;" ::i 357-40X20					SCREW, PAN SM3.57-40X20
28	151594001		1 / \ I)		*'7 1		~ 7' :,,-j- -(	THREAD GUIDE, NEEDLE BAR
29	140553102		1 7'~ v •y			:\=-	~ ;< i './3.18	SET SCREW, SM3.18
----------	----------	---- -----------------------						------------------------------------- --
				<B721J:ll >				< For "B721" >
				<DB!t -3J:ll >				< For using the DB needle "-3" >
31	S45828001		1 / \ 1)		*'7			NEEDLE BAR
				<DPtt -3J:ll >				<For using the DP needle "-3">
31	S45821001		1 /\ 1)		*'7			NEEDLE BAR
				-sm<>				< For "-5" >
31	S45829001		1 /\ 1)		*'7			NEEDLE BAR
--------------------		1---	- -	~----------------------				------------------------------------- --
				<B722J:ll>				< For "B722" >
				<DB~.t · DD 3J:ll >				<For using the DB needle "-003">
31	S45830001		1 J \ 1)		*'7			NEEDLE BAR
				<DPU -OO 3.ffl >				<For using the DP needle "-003">
31	S45822001		1 / \ 1) *'7					NEEDLE BAR
				<·D D SJ:ll>				<For"·DDS">
31	S45831001		1 /\ 1)		*'7			NEEDLE BAR
--------------------.,_ ___~----------------------								------------------------------------- --
				<B723J:ll>				< For "B723" >
31	S45889001		1 / \ 1)		*'7			NEEDLE BAR
--------------------		1-----		~----------------------				------------------------------------- --
				<B724J:ll>				< For "B724" >
31	S45890001		1 /\ 1) ;f.rj					NEEDLE BAR
117-721-107

From the library of: Superior Sewing Machine & Supply LLC

8

D . tEfl I ~H~ I Presser foot mechanism / StoffdruckerfuB / Mecanisme de pied presseur I Mecanismo de la prensa tela

15 10

24 -	-	l~
25 ~
			< B722, B724 "-10O ,-30O ,-40D "m
			I For "-10D ,-30D & -40D "
23			of B722 & B724 >
		21	9

	I	I33
		< B721, B722-90D , B723Jft / For "B721, B722-90D & 8723" >
	..J
1	l
2
8	I

rl

29 31

30 28

117-721-201

9	From the library of: Superior Sewing Machine & Supply LLC

D . tlJlI m!i~ / Presser foot mechanism/ StoffdruckerfuB / Mecanisme de pied presseur / Mecanismo de la prensa tela

REF.NO.	CODE	Q'TY		I:: ;.., ;( 1
1	111466101	1	;;f" -t; I	;f. '7
2	145472001	1	;;f" -t; I	;f. '7 ;( 11 JI,	-t- ::J
3	531012001	1	;;f" -t; I	7" 3 '7 i? ':I
4	531013001	1 7" 3 '7 i? ·:;-t- ::J •:; 7 ~ j- ·:; I-
5	141728001	1	;;f"-tj"J:Jq,
7	141208001	1	;t -t; I	/ q , 7' ;.., T 1
8	181919101	1	;;f"-lj"I;f.rj $(:\'-,t-		:'.l '.:I =\'-
8-1	142403001	1	;f.JI, I- 5.95
9	145580001	1	;t-t;IJ>.lfL,J ( -
10	546734001	1	;;f"-t;I 7'.ljt.,1 ( -',; ?
12	546736001	1	;;f"-t;I 7'.lfl.,/ ( -		J'l ,t-
13	109763002	1	-ttn-t-
14	048040342	2	I- ;( '7E4

15501998001 1 7' 11 7 ·:; :\'-I-;( -t- ::d .57

16545908001 1 l:::-tfJ'.lfL, ;.., 71 ;..,

17	145478101	3 ~;.., ,t- ',;4 .76
18	145479002	1 l:::-tf7' .If L,/ ( -

NAME OF PARTS

RM

PRESSER BAR

BUSH, PRESSER BAR

ADJUSTING SCREW, PRESSER

ADJUSTING NUT, PRESSER

PRESSER SPRING

SPRING GUIDE

P-BAR GUIDE BRACKET W/SCR.

BOLT, (CP) SM5.95-28X10

PRESSER BAR LIFTER LEVER

SHAFT, P-BAR LIFTER LEVER

SPRING

WASHER

RETAINING RING, E4

SET SCREW, SM3.57

KNEE LIFTER CONNECTING ROD

SHOULDER SCREW, SOCKETSM4.76

LEVER, KNEE LIFTER

--------------------	---- -----------------------				------------------------------------- --
		<B722-10O , -30O,-40O.Ell >			<For "B722-10O,-30o &-400 ">
		<B724-10O,-30O,-40O.Ell >			<For "B724-10O,-30O &-400 ">
19	145480101	1 $f ::...,-t-	-;/ 6.35		SHOULDER SCREW, SM6.35
20--------------------	---------------------------				------------------------------------- --
	502548001	1 I:: -tf 7'If *'7			KNEE LIFTER BAR
21	545837001	1 ;;f"-!J-I7'.lf?7;..,?			PRESSER BAR LIFTER CRANK
23	S31006001	1 ;;f"-t;IJ'.lf7::J			PRESSER BAR LIFTER
24	062351216	1 7"-' ::::J35X12			SCREW, PAN M3.5X12
25	102707001	1 -tf jj -t-			WASHER
--------------------	~---	~----------------------			------------------------------------- --
		<B721-3.Ell >			<For "B721-3">
28	141158101	1 ;t-!J-I?~ ....		< Bl ~ 141158>	PRESSER FOOT ASSY ......	<Marked in 141158>
		<B721-3, B722-O03.Ell >			< For "B721-3 & B722-O03" >
28	536909001	1 ;;f"-!J-I?~ .. ..		< Bl~S36909>	PRESSER FOOT ASSY, W/F-G <Marked in S36909>
		<B722-03.Ell >			< For "B722-03" >
28	147703101	1 ;;f"-IJ-I?~ ... .		< l l ~ 147703>	PRESSER FOOT ASSY ... ...	<Marked in 147703>
28	536911001	1 ;;f"-IJ-I?~ ....		< Bl ~ S36911>	PRESSER FOOT ASSY, W/F-G <Marked in S36911 >
		< B721-5, 8722-O05.Ell >			<For "8721-5 & 8722-005">
28	140717101	1 ;;f"-t;I?~ .. ..		< Bl ~ 140717>	PRESSER FOOT ASSY ... ...	<Marked in 140717>
		<8721-5.Ell >			< For "8721-5" >
28	536910001	1 ;;f"-!J-I?~ ....		< Bl ~ S36910>	PRESSER FOOT ASSY, W/F-G	<Marked in S36910>
		< B722-O05.Ell >			< For " 8722-0 05" >
28	536909001	1 ;t-t;I?~ ....		< Bl ~ S36909>	PRESSER FOOT ASSY, W/F-G	<Marked in S36909>
		< 8723,8724.Ell >			<For "8723 & 8724">
28	545919001	1 ;;f"-!J-I?~ .. ..		< l i!~ S45919>	PRESSER FOOT ASSY ......	<Marked in S45919>
28	545920001	1 ;;f"-!J-I?~ ....		< Bl~S45920>	PRESSER FOOT ASSY, W/F-G	<Marked in S45920>
29--------------------	--------------------------- ------------------------------------- --
	513385001	1 :;, ;( -*	-;/ 3.57X10		SCREW, SM3.57X10
30	150384101	1 -;1;....	-Ji--Jj-f:		FINGER GUARD
31	025350132	1 l:::7-lj';'j'-t-:;,3rj			WASHER, PLAINS 3.5
--------------------	1-----	~----------------------			------------------------------------- --
		<8721, 8722-900, 8723.Ell >			<For "B721, 8722-900 & 8723">
32	154347001	1 l:::-1j' 7' .lfl.,/ \ - / \*			SPRING
33	S31010001	1 1' ;.... ::;· ? 6.35			SHOULDERSCREW, SM6.35
34	062671612	1 T"-::J357-40X16			SCREW, PAN SM3.57-40X16
117-721-201

From the library of: Superior Sewing Machine & Supply LLC

10

1	~i~ I Feed mechanism/ Transportvorrichtung / Mecanisme de l'entrainement
E. ~ )

/ Mecanismo de la alimentaci6n

82-'f}

81 ~

®

l

72

19

18

20 21

23 22

2425

72

~~1

~ ~ !1. lJ . ~olb©~

34~~cr::?~1 --r

_j

--·

L ~· -'@

®--

75

-~

!

-

~

-

~

4,

,____-rr

15 ~

A

U~ -

40

)~"--

68 70 69

~ ~p~39

,

~-- :~9 27

~

38_1

I 'a~

30-1 28 I~

38-6

l~;1 -s

116

1t 13

~~©~i

85 861

~

~ \)

~ 0

~

31

38-2 38-3

\.~':f'\U'\.-

a::::::37

r -----

O

26-2

34-2

13-2~~:

1t i ?~ J

36 fi

_l--;r

1 @Q

< 8721,8722-10D.lfl

--- I

~

-+-

?

/ For "8721 & 8722-100" >

35 37

~'S-- I _><-

1

8

< 8723,8724-10D.lfl

'--1

~ rr-

'

76

77

I

/ For "8723 & 8724-10D" >

'@@!

15

17

J'--- -3~ ~-

_)

29

31 <,;; -_::>

8 6 7

~6, y 32 ~

~,

3

30-2 ~at~~·

a::::::3T

28

21

~

26-1

34-1

49

~w-----5453

117-722-202

11	From the library of: Superior Sewing Machine & Supply LLC

E . i! 1) 001~ I Feed mechanism/ Transportvorrichtung / Mecanisme de l'entrai nement / Mecanismo de la alimentaci6n

REF.NO.	CODE	Q'TY
1	S19135001	1
1- 1	013761410	2
1	S16325001	1
1-1	013761410	2

I: :,, ..,c 1'		NAME OF PARTS	RM
< B721-3, B722-O03.EJi >		<For "B721-3 & B722-O03">
" :,, :;., :.., 1) :,, *:}·:;	~	LEVEL FEED ECCENTRIC WHEEL W/S
t- ..,c .:f :JS.95'7 ;f. ~		SET SCREW, (CP) SM5.95
< e121-s. e122-oosm >		<For "B721-5 & B722-O05" >
< B723, B724.ffi >		< For "B723 & B724" >
;z_ 1' " 1' " :,, :;., :,, 1)	:.., .:f :., •:; ~	LEVEL FEED ECCENTRIC WHEEL W/S
t- ..,c .:f :JS.95'7 ;f. ~		SETSCREW, (CP) SM5.95

---------- ------------- ------------------------ ---------------------------------------
2	S16327001		1	;z. 1' "- 1' :t '7			) I.,, :,, tJ :..,	LEVEL FEED CONNECTING ROD
							1
3	S45842001		1 ~ 1) tJ ::r. ~ .,				~	FEED REGULATORASSY
3- 1	156951001		2	:t ., 1) 1) :.., . , :} . ,				FEED LINK STUD
3-2	014680622		2 7'j-		t- ..,C .:f ':/4.37'7 ;f. ~			SET SCREW, SOCKET (CP) SM4.37
4	118734001		1 ~ 1) tJ ::r. ~ :} .,					FEED REGULATOR SHAFT
5	118735001		1 -tfn-*					WASHER, PLAIN 6
6	156967001		1 ~ )		tJ I. :J '7 L			FEED REGULATOR SHAFT, L
				1
7	151439002		1 -tf jj.:f					WASHER
8	014760622		2 J'j-		t- ..,c .:f :JS.95			SET SCREW, SOCKET SM5.95
9	S16330101		1 ;z_ 1' "			1' :t '7	) '7 ::P	FEED ROCKER ARM
							1
10	014780622		2 7'Tt->.:t-::J6.3S?;f.~					SET SCREW, SOCKET (CP) SM6.35
11	156958001		1 ;z. 1' "			1' :t '7	) '7 ::P :J 7	STUD, FEED ROCKER ARM
							1
12	014680622		1 7'T t- ..,c ~- :J4.37? ;f, ~					SET SCREW, SOCKET (CP) SM4.37
13	S16333100		1 ~ 1) tJ I.~ I.,, I { -					FEED REGULATOR LEVER
14	S07959001		1 7' T ;j; JI, t- 476-32X 14					BOLT, SOCKET SM4.76-32X 14
15	151308101		3 1.,,;..,tJ;..,:J-712.s					CONNECTING STUD, 12.5
16	014680422		2 7'j-		t- ..,c ;t- ~/4.37? ;f. ~			SET SCREW, SOCKET (CP) SM4.37
17	S16331001		1 ~ 1) tJ ::r. ~ 1.,, :,, tJ :.., D					F-REGULATORCONNECTING ROD, D
18	S16332001		1	~ )	tJ ::r. ~ I.,,		:.., tJ :.., u	F-REGULATOR CONNECTING ROD, U
				1
19	S07656001		1 ";.., :., ;..,I::..,					PIN
20	014680622		1 7'j- t- ..,c ;t- 1/4.37? ;f, ~					SET SCREW, SOCKET (CP) SM4.37
21	S16334001		1 :t ?		I)	7" 3 '7 i? ·:; ~		FEED REGULATOR
22	156970001		1 :t ?		)	7" 3 '7 i? ·:; ~ ::; ?		FEED REGULATOR SHAFT
					1
23	014761030		1 7' T '7 ;f. ~ 595-28X10					SET SCREW, SOCKET (CP) SM5.95
24	S02556001		1 -tfjj;t-					WASHER
25	048070342		1	t- ..,c	'7 E7			RETAINING RING, E7
--------------------		i	-----	~----------------------				------------------------------------- --
				<B721, B722-10O.EJi >				<For"B721 &8722-100">
				<B723, B724-10O.EJl >				< For II B723 & B724-1 OD " >
26-1	S32922001		1	tJ::r. :;.,.:X 1' 1.,,/{- ::J ?				SHAFT, REVERSE LEVER
--------------------i-.---				----------------------- ------------------------------------- --
				< B722-30O, -400
							-90O.EJl >	< For 11 8722-300, -400 & -900 11 >
				< B724-30O, -400
							-90D ffl>	< For II B724-30O, -400 & -900 11 >
26-2	S33681001		1 t)I.:;.,.:X1 L,,J { - :J ?					SHAFT, REVERSE LEVER
27--------------------	147504201	---- -----------------------						------------------------------------- --
			1 tJ :.., -tf					SPACER
28	048080342		1	t- ..,c '7 ES				RETAINING RING, ES
29	025100132		1 l:5-tf:ti;t-:;.,3'710					WASHER, PLAINS 10					--
--------------------		'9----		~----------------------				-------------------------------------
				<B721, B722-10O .EJl >				<For	11	8721 & 8722-100	11	>
30-1	104564001		1	<B723, B724-10O.EJl >				< For 11 8723 & B724-1 OD ">
				0 ) :..,/'j				ORING
				1
32	213765001		1 j- ~ '702X10.SX20					WAVE RING, 02X10.SX20
--------------------		---- -----------------------						------------------------------------- --
				< B722-30O, -400
							-90O.EJi >	< For 11 8722-300, -400 & -900" >
				<B724-30O,-40O
30-2	S33680001		1	0 ) :..,?			-90Offl>	< For 11 B724-30O, -400 &-900 " >
								CRING
				1
117-722-202

From the library of: Superior Sewing Machine & Supply LLC

12

E . ~ 1J ~1* /Feed mechanism/ Transportvorrichtung / Mecanisme de l'entrainement / Mecanismo de la alimentacion

82~

81~

~

72

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18

20 21

23 22 24 25

~~--1

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35

37

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---1 _..x--0

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L 'I36

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76 77

15

17

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29

31

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	I I I
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117-722-202

13	From the library of: Superior Sewing Machine & Supply LLC

	1		001* / Feed mechanism /Transportvorrichtung / Mecanisme de l'entrainement
	E. i*	)
	/ Mecanismo de la alimentaci6n
	REF.NO.			CODE	Q'TY			t::...	} 1	NAME OF PARTS	RIV
	31			062670712	3 1"~ ::J 357-40X7					SCREW, PAN SM3 .57-40X7
	33			S11170001	1 t:~1,;t.					SPRING
	----------			----------	.,_	.,_ ______________________				------------------------------------- --
						< B721, B723Jfl >				< For "B721 & B723" >
						<B722-10, B724-10OJfl >				<For"-1 OD of B722 & B724" >
	34- 1			S45838001	1	:hI~x1vl<- ? ~				REVERSE STITCHING LEVER ASSY
	35			S37333001	1 1""-'::J4.76-32X14					SCREW, PAN SM4.76-32X14
	36			153484001	1	-tf:ff .:t-4.76				WASHER, PLAIN 4.76
	37			028050240	1	,,;t,.-!f:ff.:t-2-s				WASHER, SPRING 2-5
	----------			----------	.,_ ___ ~----------------------					------------------------------------- --
						< B722-30O, -400
									-90O.lft >	< For "B722-30O , -400 &-900 " >
						<B724-30O, -400
						:hI ~x 1 v i \ -			-90O.lft >	<For "B724-30O, -400 &-900 " >
	34-2			S45840101	1				? ~	REVERSE STITCHING LEVER ASSY
0	----------			----------	---- ~----------------------					------------------------------------- --
						<B721-3, B722-O 03.lft >				< FOR "B721 & B722-O03" >
	38-1			S31015101	1	;f" '7	1) j t	1) ,:t 1 -t1 JI, '7 ~		STITCH LENGTH DIAL ASSY
	38-1-1			S06999101	1	;f°? •J-;:-3		'7-t?',:J;t,::;.		ADJUSTING SCREW
	38-1-2			S31016001	1	;f" ?	I) j t	I) ,:/ 1 -t'JI, Ef fi		STITCH LENGTH DIAL, 4Marked in
	38-1-3			521514101	1	~ j	;t,. "1/4.76			SCREW, SM4.76
	38-1 -4			108549001	1 QI):..,?					ORING
	38-1-5			142746002	1	j t	IJ 1 9- :;f" 'If I			SUPPORT PLATE

< B722-30O, -400

						-90O.lft >
38-1	S31018101	1	;f" ?	1)	j t	1) -:11 -t'JI,? ~
38-1-1	S06999101	1	;f" ?	1	T 3	'i -t? ·,:., ;t,. ::;
				)
38-1-2	S31019001	1	:;f" ?	IJ	j t	1) -:11 -t'JI, § §
38-1-3	S21514101	1	~ j	;t,. "1/4.76
38-1-4	108549001	1	0 I) /?
38-1-5	142746002	1	j t	IJ	1 9,	:;f" 'If I
			< B723, B724ffl >
38-1	S45904101	1	;f" ?	1)	j t	1) -:f 1 -t'JI,? ~
38-1-1	S06999101	1	;f" ?	IJ T 3 'i -t? ·,:., :t- ::;
38-1 -2	S45905001	1	;f" ?	I)	j t	I) -:f 1 -t'JI, § §
38-1-3	S21514101	1	~ j	:i "1/4.76
38-1-4	108549001	1	0 I) /?
38-1-5	142746002	1	j t	1) 1 9,		;f" 'If I

<For "B722-30O,-40O &-900 ">

STITCH LENGTH DIAL ASSY, 5 ADJUSTING SCREW

STITCH LENGTH DIAL, 5Marked in SCREW, SM4.76

ORING SUPPORT PLATE

< FOR "B723 & B724" >

STITCH LENGTH DIALASSY, 6 ADJUSTING SCREW

STITCH LENGTH DIAL, 6Marked in SCREW, SM4.76

ORING SUPPORT PLATE

------------------------~----------------------								------------------------------------- --
39	145502001	1	j	t	IJ 1 T :!If j		!:: :..,	POSITIONING PIN
40	100328001	1 j		t	IJ 1 -;:- ~ j		t: :., , , ;t,.	SPRING
41	S02568101	1 ;1.		1 /0\. 1 ;f" ? 1)			:_J ?	FEED ROCKER SHAFT
42	S16432001	1 }1,Jl,18.8						BUSH, 18.8
43	S31014000	1 j		9- JI, 19.3				BUSH, 19.3
44	224485000	1	'7 2X15X22ST					RING, 2X15X22ST
45	048150142	1 I-		j	'7 :;/? 3 '7C15			RETAINING RING, EXTERNAL C15
46	183493001	1	;f" ?		1)	::;" ? iz ',:I j- jJ 7 - ? ~		SET SCREW COLLAR ASSY
46-1	101706001	2	I-} .:t- V- 6.35				-:11 'I 7	SET SCREW, SM6.35
47	156244020	1	A 1 /0\. 1 ;t ? )					FEED ROCKER BRACKET ARM
						1
48	062681212	2 1"~::J437-40X12						SCREW, PAN SM4.37-40X 12
49	511172101	1	;f" ?		IJ	,:t -( ? ~		FEED BAR ASSY
50	S25349021	1	;t- ?		IJ	-:I 1 V -7		FEED BAR SHAFT
51	120990001	2 7'9- v				'Y ~ t- j	;?,- :.i"4.37	SET SCREW, SM4.37-40X8
52	158722001	1	-tj" jj ;?,-4.2					WASHER, PLAIN 4.2
117-722-202

From the library of: Superior Sewing Machine & Supply LLC

14

E. i2s. 1J ~ii I Feed mechanism/ Transportvorrichtung / Mecanisme de l'entrainement / Mecanismo de la alimentaci6n

82 -yJ

81 ~

68 70 69

~

f°i

76 77

49

~~ 54

53

117-722-202

15	From the library of: Superior Sewing Machine & Supply LLC

1	~ il / Feed mechanism /Transportvorrichtung / Mecanisme de l'entra,nement
E. *)
/ Mecanismo de la alimentaci6n
REF.NO.		CODE	Q'TY	1:: :.- ..,c-(	NAME OF PARTS	RIV
			<B721-3.J:ll >		< For "B721-3" >
53		S01158001	1 :;f'71) J		FEED DOG
53		S01159001	1 :t 7 1) / \		FEED DOG
			<B721-5, B722-O 05.J:ll >		< For "B721-5 & B722-O05" >
53		S13102101	1 :;f'7	IJ J\	FEED DOG
53		159525001	1 :t71)/{		FEED DOG
			< B722-O03ffl >		< For "B722-O 03" >
53		159521001	1 :;f'7	IJ }\	FEED DOG
53		159525001	1 :;f' 7 IJ /\		FEED DOG
			< B723, B724ffl >		< For "B723 & B724" >
53		545903001	1 :;f'7	IJ /\	FEED DOG

--------------------1-----1------------------------ ------------------------------------- --
54	100080003	2	::,..,c*::;3.18	SCREW, SM3.18
55	S02574101	1	V°3'7-'f:t7I) 1/7	FEED LIFTING ROCKER SHAFT
56	S31014000	1	..,c ~ Jl,19.3	BUSH, 19.3
57	224485000	1	'7 2X15X22ST	RING, 2X15X22ST
58	048150142	1	t- ..,c '7 ::; 7 3 '7C1 5	RETAINING RING, EXTERNAL C15
59	180322001	1	1/ 3 'J'7:;f'7 IJ '77 7 ~	F-LIFT. ROCK SHAFT CRANK ASSY
59- 1	062681412	1	-j-l'\':::J437-40X14	SCREW, PAN SM4.37-40X14
60	183493001	1	:;f' 7 IJ 1/ 7 -tz ':J f- tJ 7 - 7 ~	SET SCREW COLLAR ASSY
60-1	101706001	2	t-)-* 1/6.35	SETSCREW, SM6.35
61	502575000	1	1	F-LIFTING ROCK SHAFT CRANK
			:l 3'7'7:t7):/7'7
62	062711212	1	7"-:::J476-32X12	SCREW, PAN SM4.76-32X12
63	147509001	1	:1.:,.*:,-7.14	SHOULDER SCREW, SM7.14
64	104689002	1	-;-·y t- 7.14	NUT, SM7.14
65	118758001	1	::; 3 '7'7:t 7 ) I,, :.., tJ :.,	FEED LIFTING CONNECTING ROD
			1

------------------------ -----------------------
		1	<B721-3, B722-O 03.Jfl				>
66-1	502576001		/\. _:,. :/ _:,. I) :..., *			1/ •:J :\'-
66-1-1	151604001	2	t- ..,c *	V-5.95
66-1-2	047200642	1 A 7 IJ		:..., ? t: .:,. AW2
			< B721-5, 8722-D 0Sffl >
66-1	S19137001	1	" :..., ::, .:,. 1) ;...-		*	::; ':J :\'-
66-1-1	151604001	2	t- ..,c *- V'S.95
66-1 -2	047200642		1	;...- ? t: :..., AW2
		1 A 7 )
			< B723, B724ffl >
66-1	545914001	1 /\. _:,. :/ _:,. 1) /			*1/ ':J :\'-
66-1-1	151604001	2	t- ..,c-* V-5.95		;...- AW2
66-1-2	047200642	1 A 7 IJ		;...- ? t:
68----------	----------502562001	...., ___-----------------------
		1 J\*tJ'r
69	502563001	1~1-"::,,,*
70	153132000	1 7-(Q.:,.7.i-'i
72	S45832000	2	A -( "- -( :t 7		1) 1) ;...- 7
73	S32919000	2	A -( "- -( :t 7		1	1
					)	'77 ) :..., 7
74	156956001	1	) ;...-7 : ;-7
			1
75	144458001	1	7'~v"J :\'-t- ..,c *::;3_57
76	S01753001	1	At-':JJ\
77	062680812	1	-j-l'\':::J437-40X8
79	156948001	1	v ;...- tJ ;...- :;f''ij-I
80	108960002	2-ij-7*:,-3,57			t- ':II\-
81	159690001	1	:t7 1) tJi.,,A
82	062670412	1	7"-:::J357-40X4

------------------------------------- --

< For "B721-3 & B722-O03" >

ECCENTRIC WHEEL W/SCREW SET SCREW, SM5.95

PIN, SPRING ROLLAW2

<For "B721-5 & B722-O05">

ECCENTRIC WHEEL W/SCREW SET SCREW, SM5.95

PIN, SPRING ROLLAW2

<For "B723 & B724">

ECCENTRIC WHEEL W/SCREW SET SCREW, SMS.95

PIN, SPRING ROLLAW2

------------------------------------- --

SPRING HOOK SPRING NYLON TUBE

FEED ROCKER LINK FEED ROCKER ARM LINK LINK SHAFT

SET SCREW, SM3.57 STOPPER

SCREW, PAN SM4.37-40X8

CONNECTING ROD PRESSER SCREW, FLAT SM3.57 STOPPER, FEED CAM SCREW, PAN SM3.57-40X4

117-722-202

From the library of: Superior Sewing Machine & Supply LLC

16

E. ~ )	™If~/ Feed mechanism/ Transportvorrichtung / Mecanisme de l'entrainement
1

/ Mecanismo de la alimentaci6n

82--yj

81 ---=

(iJ

																									72
19	18		20 21		23 22				2425												72		~~1
	~~L-lj~oU>©~_											1						~·	34r~~a:?~v-r							_j
	--	. ~													~						®-r ' ~ -~
!																			_!-~
		-		~									,		l:Y'"~					L----tr
1s~~			~		-																joit""--				68	70 69
				~;=~ig																	~:'~g 27				~
				38-1		I 1	1J				. _38-5					14	13				30~-12~8J8)
					38-6		~			:~_:,_)					,				~?			0		~
						r			~38-2::t							~		,						.l
							8		8
						13-2--0~.l								I ti~~												34-2	fi
						j_--;r							2.i-@d:?			< 8721,8722-10Offl								35 37
				---		I		~					,		'	/ For "8721 & 8722-100" >
		~s -				I		.><-					1		8	<		8723,B724-10Offl						"-	'
													I												1 36
		~			JC											/For"B723&8724-10O">								'•(§(			76 77
			11,								3										30-2 iaf~~·
				8 6 7					3-2-.				_J									31			__::>
		15						-	-		T -								~b, y 32						~
				17																	29			<,;;: -
																~T					28 21			~
																			26-1						34-1

49

~~t - 54

~53

117-722-202

17	From the library of: Superior Sewing Machine & Supply LLC