Brother Db2-b757-3 Manual

							PARTS BOOK 
FOR 
BROTHER 082-8757 
; 
...... ____ _ 
/ 
•BROTHER• 
 
e .... , l(il fJ rfjlll 
High Speed Lock  Stitcher  (with Thread  Trimmer) 
BROTHER INDUSTRIES, LTD. 
NAGOYA, JAPAN 
From  the library  of: Superior  Sewing Machine  & Supply  LLC  
						

							0 
0 
From  the library  of: Superior  Sewing Machine  & Supply  LLC  
						

							Notes for using this parts  book 
1. If the symbol! L ___ ...~I is found in the Parts No. column or the Assembly No. 
column, refer to the different parts list on page 14. 
2. The symbol 1=-----------::1 in the Parts No. column indicates that the parts is not 
available for supply. If, however, there is a number in the Assembly No. column, 
the parts can be ordered as an assembly. Please, therefore, order by using the 
Assembly No .. 
3 . 
This book was prepared based on information available in March, 1979. 
4. Parts are subject to changes in design without prior notice. 
Anmerkungen  zum Gebrauch  dieses Stucklistebuches 
1. Dieses Zeichen L..l ___ .....~l in der Spalte Parts No. (Teilnummer) oder Assembly 
No. (Geratesatznummer) verweist auf die Gesonderte Sti.ickliste auf Seite 14. 
2. Dieses Zeichen I~ in der Spalte Teilnummer bedeutet, daB dieser Teil 
nicht lieferbar ist. Wenn jedoch in der Spalte Geratesatznummer eine Nummer 
steht, kann dieser Teil als ein Gerateteilsatz bestellt werden. Bestellen Sie daher 
bitte mit dieser Geratesatznummer. 
3. Dieses Buch basiert auf den Informationen vom Marz, 1979. 
4. Modellanderungen sind vorbehalten. 
Notes sur lutilisation de ce manuel de pieces detachees 
1. Si le symbole I  I se trouve dans Ia colonne Parts No. (No de pi~ce)" ou 
dans Ia colonne Assembly No. (No jeu de pees), veuillez vous referer a Ia liste 
de pi~ces annexe page 14. 
2. Le symbole 1-=--======-I dans Ia colonne No de pi~ce" signifie que Ia pi~ce ne peut 
etre fournie. Si, dans Ia colonne No jeu de pees, il  y  a un numero de nomen­
clature, Ia pi~ce peut etre commandee comme faisant partie dun jeu de pi~ces. 
Done, pour toute commande, veuillez specifier Je no du pi~ces. 
3. Ce manuel a ete fait d'apr~s Ies renseignements valables au mois de Mars, 1979. 
4. Les pi~ces peuvent etre sujettes a des modifications sans preavis. 
From  the library  of: Superior  Sewing Machine  & Supply  LLC  
						

							Notas para usar este Libro  de Piezas 
1. De haber un slmbolo I  I junto al Parts No. (Numero de Pieza) o en Ia 
columna del Assembly No. (Numero de Juego), habra que mirar Ia Iista de piezas 
separada de Ia pagina 14. 
2. El slmbolo /~/. que se encuentra en Ia columna del Numero de Pieza, 
quiere decir que nose dispone de dicha pieza sola. Cuando, empero, hay un numero 
en Ia columna del Numero de Juego, se podra ordenar Ia pieza con todo el juego. 
Por lo tanto, sera mejor hacer el pedido recurriendo al numero del juego respectivo. 
3. Este libro ha sido compilado basandose en los datos de que se disponla en Marzo 
de 1979. 
4. Las piezas quedan sujetas a cambios de diseno sin aviso previo. 
CONTENTS 
A. Machine Body ....................................................... 1 
B. Upper Shaft and Needle Bar Mechanism ............................... 2 
C. Lower Shaft and Feed Mechanism ..................................... 3 
D. Feed Mechanism ..................................................... 4 
E. Presser Foot and Knee Lifter Mechanism .............................. 5 
F. Lubrication .......................................................... 6 
G. Thread Trimmer and Tension Releaser (-100,  -200, -400,  -5 00) ............ 7 
H. Syn.chronizer (-100,  -200, -400, -500) .................................... _ 8 
J. Thread Wiper and Reverse Switch Mechanism (-200,  -400, -500) .......... 9 
K. Reverse Mechanism (-400,  -500) ....................................... 10 
L. Control Box Mechanism (-500) ....................................... 11 
M. Presser Lifter Mechanism (-500) ...................................... 12 
Z . Accessories ... _ ........ __ ............. _ ....... _ . . . . . . . .  . . . . . . . . . . . . . 13 
DIFFERENT PARTS LIST ....... _ ..................................... 14 
INDEX ............. _ ................................................... 26 
From  the library  of: Superior  Sewing Machine  & Supply  LLC  
						

							A. Machine Body 
12 • 
II~ 
10--
l
						

							B. Upper Shaft and Needle Bar Mechanism 
:::!11 
15Jt 1&---
						

							c 
C. Lower Shaft and Feed  Mechanism 
2 
3-3-1/ 
3-t~% 23-2---4 
Ref. Nmnc of Parts No. C-I  Ft,.•d Bar Sha ft C -2 Feed Bed c. 3 R in g 
C -4 Screw ~· 0 Feed  Do g . · ~6 O il  Cap .  7 Feed Sha ft  Bush in g Small c . 8 Screw C -9 Thrust l~ing C -10 Feed Bar  Arm C-11 Scre w ---C-12 Screw C-1 3 
Ft:cd Ro ck  Shaft 
C -14 Screw C-1 5 Feed Rock Shaft Arm C :l6 Feed Shaft  Bu sh in g L ef t C-17 Screw C-18 Lower Shaft 
C -19 F elt C -2 0 S cre w 
C.: ! I Bobbin Cas e llolde r Position Bracket C -22 Screw C-23-1 Spring Adjusting Screw C -2:l-2 Spring Set Screw 
C -23-3 Lower Thread Adjusting Spring C -23 .. 1 Hobh in Case C-24 Bohhin Case Sheet C·25 Bobbi n C-2 6 
Rot:lr> !look Assembly C -27 -1 
Oil Stopper 
C -
27-2 Scre w 
C-28 Lower Shaft  Bu shing Left 
3 
Qty Parts No. Assembly No. Ref. No. I 116!li7-0 -0I  C
-2 9 
I 118845-0-01 C -3 0 
I  I 15 663-0 -01 C -31 2 I OOOR0 -0 -0 3  C
-32 I C -33 4 1118115-0-01 C-:14 -1 
I 11676fi- 0-0I 
I  101706 -0 -01 C 
						

							D. Feed Mechanism 
Ref. Name of Parts Qty No. 
0- 1-1 Vertical Feed Eccentric Wheel I 
0 -
1·2 
Screw 2 
0 - 2 
Ve rtic a l Feed Connecting Rod I l>· 3  Stopper I 
0 - 4-1 
Eccentric Whee l I 
0 ·  4-2 Screw 2 
() . 5-1 Screw 2 
0-5· 2 Crank Rod I 
0 -
6 Screw I 
() .  7-1 Feed Con troller Shaft I [) .  7-2 Screw I 0-7-3 Nut I 0-7-4 Feed Controller I 0-8 Stop Ring I 0· 9  Connecting Plate I D-10 Screw 2 D
·ll Spring I D -12 Spring I D-1 3 Pin I D -14·1 Length Control Screw I 0 -14·2 Packing I 
0 -14·3 Length Control D ial I 
0 -14-4 Washer 1 D -14-5 Screw 1 0·14-6 Feed Regulator Plate I 
0 ·15-1 Packing I D -15-2 Feed Controller Lever Shaft I 
D -15·3 Screw I 
0 ·15-4 Reverse Lever I 
II 
@-7-l 
r1-z 
6 7-t 
t~-~-)~ 
7-4 8 t 
a@---10 
15-t 10 9 
26 23·9 
Parts No.  Assembly No. R
ef. Name of Part s No. 
~ 0-1  D
-16 Screw Eccentric D-17 Re verse Lever Stopper 
151604 -0-01 Wheel D -18 Pin 11!0791-0-01 D-19 Scre w 118758- 0-0 1 D-20 
Screw 10 1482 -0-0 1  D-21 Lever Feed Connecting Rod 
~ 0
-4  0-22 Feed Rock Shaft Arm Pin 
Eccentric D
-23- 1 Lever Regulator Connecting Rod 151604-0-01 Wheel D -23 -2 Sto p Ring 0-23 -3 Stud 144712-0-01  D-5 D-23-4 Lever Feed Link 
~ 
Crank Rod D-23-5 Screw 
118725 -0-0  I 
D-23-6 Stud Small 151604-0-0 1  D-23 -7 Pin 118744 -0 -0 1  D-7 D-23-8 Stud Large 1
5 1607-0-0 1 Feed D -23-9 Feed Reg ulator Controller 10 5234 -0-01 Assembly D-24 Feed Regulator Shaft 
--
15 3 142-0 -01 0 -25 Screw 048 070-3-42  D-2 6 W asher 118746·0 ·0 1  D
-27 W asher 112 072·0 ·0 1  0-28 Collar 
100 328 -0-0 1  D-29-1 Coll
ar 
100 327- 0-01 
109151 -1 -0 1  D
-29· 2 Screw 
108549 -0 -0 1  D-14  D
-30 Bolt 153168·0·01 Length Control D-31 Feed Regulator Bracket 142746 -0 -02 A ssembly D-32 Screw 142747 -0 -02  181482-0-01 0-33 Feed Rock Shaft Arm Pin 151507- 0-0 1 
1 04 564· 0·01 
D-15 118751 -0-0 1 
0 157 71-0 -12 Reverse L eve r Assembly 
-4-
Q ty PartR No. A ssembly No. 
I  00968 0-7 -14 I 118865 -0 -0 1 1 118713-0 -0 1 
I  15 160 1-0-02 
I  15 1601· 0·0 2 { I 
118736 ·0·01 
I  11874 0-0 -0 1 
I 111~730-0-0 1 
I 04804 0-3 -42 I 118737 -0 -01 D-23 
I  118729-0 ·
01 Feed 
I 151601-0 ·0 2 Regulator 
I  118732 -0 -0 1  Assembly 
2 118733
-0 -01 118727 -0 -01 
I 118731 -0-01 
I 
--2 118734 -0 -0 1 2 15 1604 -0 -01 2 118735- 0-0  I 
I  025100-1-30 
I  118748 ·0-01 
1 ~ D -29 Collar 2 15 1604- 0-0 1  118824-0-0 1 
I  108749 -0 -
01 
0 I  118747 -0-01 1 151601 -0-02 1 109153-0- 01 
--
From  the library  of: Superior  Sewing Machine  & Supply  LLC  
						

							E. Presser Foot and Knee  Lifter  Mechanism 
---
 
 
19-1-e tl--20 
16-1 17-4 
r-­
/. 
18 
··~ / .  
~ ------17-l~--
,------
  
 
l __ _ 
19-2 
11 ,. ~ 
~~ 13   
25 12 
23-• 23-J 
Ref. N arne of Parts Qty Parts No. Assembly No. Ref. Name of Parts No. No. E· I  Scre w I 
141207 ·0·01 E-17· 1 Nut E· 2 Nut I 14 7846· 0-0  I E-17·2 Presse r Bar Lift in g  Cam E· 3 Presser Spring Bar I 141 2 0 8 ·0·0 1 E-17·3  Presser Bar 
Lif tin g Shaft E · 4  Sprin g I 14 172 8·0·0  I  E-17·4 Presser Bar Li ft in g  Lev er 1-· 5 Wash er I  14 0407 ·0 ·01 E-17· 5 Screw 
E·  6·1 Presser Bar Bracket I ~ 
E·6 E-18 Knee Lift er Upper Crank Presser Bar S haft 
E ·  6· 2 Screw I 
151604 ·0 ·01 Assembly E -19·1 Screw 180102·0·01 
E· 7  Screw I 0096 80·7 ·1 3 
P resser Bar Bracket Thread E-19·2 Knee Lifter Crank Upper E· 8 Guide I  111469 ·0·01 
E·2 0  Pin 
E· 
9 P resse r Bar B us hin g I 111467 ·0·0 1 E-2 1 Knee Lifter Connectin g  Rod E -10 Presser Bar I 111466· 0·01 E-22 Knee Lifter Complying Bar E-11 Screw I  0016 70· 8·1 4  E-23 ·1 K nee Lifter 1 o int E-12 Presser Foot I 
E·23 ·2 B olt E-13 Hinge Screw 
1 E-23·3 Knee Lifter Bar E-14 Tension  Re lease Lever 1 E -23· 4 Bolt E ·l5 Tension  Release  Le ver  Sprin g I 
E-23·5 B olt 
E-16·1 Presser Bar L iftin g 
1 109144·0 ·01 E -16 E-23 ·6 Knee Lifter Plate Stopper Connector Presse r B ar E -23·7 Knee Lifter Plate Li fting E-16 ·2 S crew I 
10 0 294· 0·01 Assembly E-23 ·8 Knee Lifter Cover E-16·3 Presser Bar Lifti n g  Bracket I  100 290· 0·01  181623· 0·01 
E-24 Washer E-25 Finger Guard ) *I arts E-22·23 are for -100·-200 and -400 type specification. 
-5-
21 
tf----23-c 
®...---23-5 ~ 23-1 
) 
( 
 
~ 
 
Qty Parts No. Assembly No. 
1 02168 0·2·02 E-17 I 142015 ·0 ·0 1 
Presser Bar I  142017·0·01 Liftin g Lever I 
--
Assembly 1 142 018 ·0·0 1  14 2014 ·0·0 1 
I  10914
5·0·0 1 
1 
1 0025 1·0 ·0  I E-19 Knee Lifte r Crank Upper 
~ 
Assembly I 
14 2756·0·01 
I 
045161 ·0·00 
I  141168·0· 01 
I  145573· 0·00 
1 146039· 0·01 
I 017762·0·13 
I  104619·0·02  E-23 1 1
0 0463 ·0·01 Knee Lifter I  110087 ·0·01 Assem bly I 
114967·0·01 181427·0 ·01 I 
114966·0·01 
I  140503 ·0· 0 1 I 
I 
From  the library  of: Superior  Sewing Machine  & Supply  LLC  
						

							F. Lubrication 
Ref. Name of Parts Qty Parts No. Assembly No. No. F· I Wick I 108804·0·01 F· 2 Wick I 109405-0-01 F· 3 Tube Stopper I 148806-0-01 F· 4 Screw I 009670-5-12 
F · 5 Felt Support I 145737-0-01 F· 6  Dust Cover with Tube I 145792·0 ·01 F· 7 Screw I 151603-0 -02 F· 8 Upper Oil Tube I 146329·0·00 
F · 9 Tube Guard I 146326-0-01 
F -10 Oil Hole Bolt for Oil Gauge I 143196-0-01 
F -11 Packing I 081014-6-70 
F-12  Oil Gauge Window I 104547-0-01 
F-13  Oil Gauge Flange I 104546-0-01 
F-14 Screw 4  I 02538·  0-02 
F-15 Vinyl Tube 2 118996·0·00 
F -16 Oil Tube I 146319·0·01 
F-17 Tube Joint I 146324·0·01 
F-18 Vinyl Tube I 146323·0·00 
F-19 Spring I 100328-0-0 I F-20 Wick  I 108801-0-01 
F -21 Wick Supporter I 109171 -0 -01 F -22 Screw 2 009679-3 -12 F-23 Vinyl Tube I 104566-0-01 
F -24 Wick I 108802 ·0 ·01 F -25 ·1  Oil Pan I F-25 
F -25·2 Stop Ring I 146293·0·01  Oil Pan F-25·3 Knee Lifter Shaft I Assembly 
-6-
Ref. 
No. 
F -25 · 4 F-25 · 5 F-25· 6 F-25· 7 F -25· 8 F-25· 9 F -25·10 
F -25·11 
F -25·12 
F-25·13 
F-26 · 
I F-26· 2 F-26· 3 F-26· 4 F -26· 5 F-26 · 6 F-26· 7 F-26· 8 F-26 · 9 F-27 
F-28 
F-29 
 
 
--~ .......... (to tt 12 n 
\~tt) 
 r 14 
Name of Parts Qty 
Knee Ltfter I Nut 2 Screw 2 
Bolt  I 
Spring I Oil Cap I Knee Lifter Shaft Bushing 2 0 Ring I Screw I Packing I Tube Joint I Plunger 1 Spring I Screw I Pump Body 
I Pump Propeller I Pump I Spring 2 Screw 4 Oil Stopper I Pump Filter I Screw 3 
Parts No. Assembly No. 
146037·0·01 
100022·0·04 
104885-0-01 
146367-0-01  F-25 
Oil 
Pan 140480·0 ·01 149578-0 -00 Assembly 
081007 -0-70 
140518-0-01 
146040-0-01 
144878·0·0 
I 144875-0-01 
144876-0-01  F-26 
112467 ·0·02 
148848·0·01 Pump Body 
148849-0-01 Assembly 
144869-0-01  181476
·1·01 
144874·0·01 
009670·8·12  146196·0·01 
144872-0-01 
009680-7-13 
0 
From  the library  of: Superior  Sewing Machine  & Supply  LLC