Bonis S-50, S-51, S-51-2, SS-51-2, SK-51 User Manual

PARTS

ASSEMBLIES

FOR

Bonis

Models

S-50,

SK-51,

S-21,

S-51,

S-51-2,

BS-8

SS-51-2,

BONIS

131

Bonis

Bros.

All

Copyright

Sewing

Rights

West

(c)

1971

Machinery

Reserved

29th Street,

BROS.

Corp.

SEWING

New

York,

Cable Address: "BONIBRO"

N.

MACHINERY

Y.

10001 •

Phone

CORP.

212/563-6161

·

Boms

PARTS

Models

S-5f

SK-51

A!

MAl N

FRAME

ASSEMBLY

i .

Refer.

~

1

2

3(2)

4

5(2)

6

6·A
6-8(2)
7(6)
8(2)

9(2)
10
11(2)
12(2)
13
14
15
16
17
18

18-A
19

20
21

22

23
24
25

26(2)

27(2
28
29
30
31

32(2)
33

34
35(2)

36
37
38(2)
39(2)
40

1(4)

4
42
43

44

45
46
47
47-A
48(2)
49
50
51

52

53

54

Part

~

226 ...........

133 ...........

129 ...........

213

.........

12

8 .

..........

703

.........

704 ...........

221

...........

405

........... Top Cove

612

. .

611 .....

610

...........

248

...........

409

........... Small

30-B·T

29·B·T

1

05·51.

24 ............

203 ....

617 ...........

1

16

. .

19-S.

.......... Feed Disc

19

·A .......... Feed Disc

108

-A

108 .........

219-S
230 ...
127·T.

201-S
224

)

........... Fe

201·L
1·T

...........

51

........... Cut-

52

...........

51·A

.. . .

405 ...
107-S

121

-S .

639 ...........

18-S

. ....

39-S .......... Disc

426

.......

1 07-N .

121

·N·1·1/

639-N

18

·N·1·

46-S

..........

121-N-7/8" ...
18·N

· 7/

46

-S a

18

· R

..........

18

-R

.....

202

...........

21

............ Pressure Leve

158 ...
157 ...

250 ... .

259 ...
Chain

~o~~c~ri~pt~io~n

______________________

Tension

Nut
Top Cover
Tens

..

Ten
Top

..

Top

Front
Front

.........

...

Top

... Top

Top

Main

.........

Main

......... Main

........

Main
Belt

.......

Belt Wheel Scre
Needle

.........

.........

.........

Needle

Top

. .

Bottom

Arm

........ Work

......... Wo

......... Feed

.........

Pressure
Main

Cut·off

......

........

Cut-off
Cut-off

ion

0 i

sion Post

Cover
Cover

Cover
Cover

r Hi
Cover
Cov

er Hi

Cov

er L

Shaft

Oil

Cup

Shaft
Shaft
Shaft

Wheel

Bar

Bar

Arm

Pin

Arm

Pinch Screw

Guide

rk

Guide

Shaft

ed

Shaft

Lev

Frame

oft

Knife

Knife
Knife
Knife

Tension

Spring

sc

Thr

ead

Guide

Screws

nge

Screws

Hing

e Stoppers

nges

ock

Spring

Bushing Set Scr

s

Bushing,

Short,

Bushin

g, Long, Bron

w

Bushin

g

Tension

Post

Arm

Complete

Arm

Only

Pin

Set

Screw

Screw,

Short

Screw

Nuts

er

Shaft

Screw

Bracket
Blade
Bracket
Bracket

. ........ Front Feed Disc Stud--

........

......

.........

1/8"

8"

nd

.....

.. .

. . F

8"

.... Needle

.... Fron

..

...... Fro

426

.... Disc

Needle

Guard

Need

le

Guard_Pin

Front Feed Dtsc

Stud

Washe

Disc

Stud

Washer

ront

Feed Disc

Guard

Needle Gua
Disc St

Needle Gua

t F

eed

ud

rd

Disc

Washer

rd

nt Feed Disc

Stud

Was

Feed

her & Scr

Disc,

Rear

ch

Screws

r

Screws

Stud=.::.::.::

Screws

------

27

teeth per i

..... SawTooth Rear Feed Disc

Rear

Feed

Disc

Set

Scr

r

........ Pressure

........ Pressure Lever Spri

.......

........

Pressure
Pressure

Lever Sh
Lever

Adjusting Scr

Lever

Adjusting

aft

ng

ews

With

s,

Screw,
Screws

--

ew

ews

Screw

Bronze

ze

Pins

Long

Small

-l

::l

nch

ew Nut

FITTED
COMPLETE
# I

B.S

·C

FITTED
COMP

LET

E

#IB·N·II/8"·C

39, 41, 44, 45,

FITTED

COMP

LET

E

o#IB·N·718"·C

____

46

___

*

"C"

after

Part

Number Denotes

"COMPLETE"