Singer 246K21 Manuale utente

Form

K6330

(558)

Supplement

Form

K6195

SERVICE

MANUAL

FOR

SINGER

SEWING

MACHINE

246K21

REVISED DESCRIPTION FOR 246K20

MACHINE

Machine

246K20

has

two

needles

and

two

loopers

and

fitted

with

trimmer

for

simultaneously

trimming

and

ovcredging

bathing

suits,

house

dresses

and

similar

articles. It

makes

a strong four-thread chain stiteh

consisting

oyeredge

stitching

and

single

line

reinforcing

stitching

running parallel and

to the

ovcredging

on the upper

side

of the fabric.

Clearance under presser foot is 1/4 inch.

Needle

gauges

are

.109

(7/64)

inch

and

1/16

inch.

Unless

otherwise

ordered, the

machine

will

furnished

with

needle

gauge

.109

inch.

The

machine

equipped

with

small

"horn"

beneath

the throat

plate

aid

tubular

work.

The

trimmer

can

adjusted

trim

from

3/32

inch

7/32

inch

from

the

needles.

The

knife

trims

ahead

the

needles.

The

machine

can

fitted

for

bight

from

3/32

inch

5/32

inch,

depend

ing

upon

the

material

and

the

thread

in use.

...

t'le

machine

is regularly

furnished

with a foot lifter, a

knee

lifter

wll

be furnished instead, when specified on order.

The

presser

foot

can

readily

thrown

out of

operaliiu'

jio.sition

prevent

interference

when

threading

the

machine

replacing

the

needles.

From the library of: Superior Sewing Machine & Supply LLC

The

elotli

plate

can be

swung

out

170° to

the

left of

the

needles, to

facilitate

adjustment

of tlie

machine.

The loopers are independently driven,

permitting

variations

their

adjustment in relation to each other and to the needles, to suit the work

being

sewn.

The Splash lubricating system

automatically

and continuously oils

the

principal ])carings, during the

operation

the

machine. This oiling

system

also includes an oil

sight

gauge

the

front

the

machine,

indicate

the

oil level to the

operator,

and an oil cooling

tank

the

rear

the

machine.

Sec X-Ray view of machine on pages 12 and 13 Form K6195.

Thread

Unwinder

Complete 151163 is

regularly

furnished

with

the

machine.

Machine

Pulley

164231, for 3/8

inch

V-belt,

furnished

with

the

machine,

may

also be used for 5/16 inch

round

belt.

246K21

MACHINE

Machine

246K21

similar

Machine

246K20

except

that

has

greater

looper stroke

and

astraight top knife.

The

iniichine

designed

for

trimming

and

ovcrcdging

medium

and

medium

heavy

fabrics.

The

distance

between

the

two

needles

fixed

.109

inch.

NEEDLES

AND

THREAD

NOTE

Distance

between

needles

246K20

Machine

can

.109

inch

1/16

inch

requested.

Machine

246K21

has

this

distance

fixed

.109

inch

only.

From the library of: Superior Sewing Machine & Supply LLC

SET

THE

FEED

DOGS AT

THE

CORRECT

HEIGHT

(Page

15)

Gauge

164883

tiiiperscdcs

164460.

SET

THE

NEEDLE CARRIER AT

THE

CORRECT HEIGHT

(Page

16)

Gauge 164883 supersedes 164460

TO SET

THE

LEFT

LOOPER IN RELATION TO

THE

NEEDLES

(Page

18)

Gauge 164883 supersedes 164460.

TO SET THE RIGHT LOOPER IN RELATION TO THE NEEDLES

(Page

19)

Gauge 164883 supersedes 164460

From the library of: Superior Sewing Machine & Supply LLC

ADJUST

THE

STATIONARY

KNIFE

FOR

WIDTH

BIGHT

K4862

Fig.

29.

Adjusting

Width

Bight.

The

position

of the

trimmers

relation

to the

needles

determines

the

width

bi<jht.

To adjust,

loosen

the

screw

A6,

Fig. 29, and

move

the

movable

knife

holder

B6,

Fig.

29,

to the right. Then

loosen

the

screw

C6,

Fig.

29,

and

move

the

stationary

knife

holder

D6,

Fig.

29,

the

left

right

rci]uircd.

Securely

tighten

the

screw

C6.

Now

with

the

eiitting

edge

the

movable

knife

E6, Fig. 30, at its

lowest

position,

i.e., slightly

below

the

rutting

edge

the

stationary

knife

F6,

Fig.

29,

move

the

knife

holder

B6,

Fig.

29,

the

left

against

the

stationary

knife

F6.

Tighten

the

screw

A6,

Fig.

29.

Contact

pressure

between

the

stationary

knife

and

the

movable

knife

is adjusted

tinder

'"To

Replace

the

Movable

Knife",

page

From the library of: Superior Sewing Machine & Supply LLC

M6 M7

Fig.

30.

Adjusting

the

Trimmer.

REMOVE

THE

STATIONARY

KNIFE

remove

the

stationary

knife

F6,

Fig.

29,

loosen

the

clamping

screw

G6,

Fig.

29,

and

draw

the

knife

upward

and

out.

REPLACE

THE

STATIONARY

KNIFE

replace

the

stationary

knife

F6,

Fig.

29,

push

the

knife

down

into

the

knife

hohler

D6,

Fig.

29,

until

the

cutting

edge

is flush

with

the

top

the

throat

plate

H6,

Fig. 30.

Tighten

Screw

G6,

Fig.

29.

REMOVE

THE

MOVABLE

KNIFE

remove

the

movahic

knife

E6,

Fig.

30,

remove

the

clamping

si-rew

A6,

Fig. 29,

and

the

knife

holder

B6, Fig. 29.

Then

loosen tiic screw K6, Fig. 29,

and

withdraw

the

knife

E6.

From the library of: Superior Sewing Machine & Supply LLC

REPLACE

THE

MOVABLE

KNIFE

To replace

the

movable knife E6, Fig. 30,

insert

the

knife into the knife

holder B6, Fig. 29,

and

tighten

scrc\v K6, Fig. 29. Replace tlic knife holder

B6 and

the

clamping screw A6, Fig. 29, and move

the

knife holder to the left

until

the

movable

knife

contacts

the

stationary

knife

F6,

Fig.

29.

Tighten

clamping

screw

A6.

Turn

the

machine

pulley

over

from

yon

until

the

movable

knife E6,

Fig. 30, is at the lowest

point

of its stroke. In this position loosen the screw

K6, Fig. 29,

and

raise or lower

the

knife E6

until

the

highest

point

its

bevelled

cutting

edge is

just

below the

cutting

edge of the

stationary

knife

F6, Fig. 29.

Tighten

the

screw K6. Now loosen

the

screw C6, Fig. 29,

sufficiently to release the spring behind the

stationary

knife holder D6,

Fig. 29,

permitting

the

stationary

knife F6 to

make

tight

spring

contact

with

tlte

movable

knife

E6.

Securely

tighten

the

set

screw

06.

With

the

movable

knife E6, Fig. 30

the

lowest

point

its

stroke,

cheek

alignment

knives

and

F6.

Should

the

cutting

edges

the

knives

gape

their

forward

ends

(point

nearest

operator)

loosen

the

screws

and

C6,

Fig. 29

and

M6, Fig. 30.

Then

turn

in screw M7, Fig. 30

until

the

cutting

edges are

correctly

aligned.

Tighten

the

screws M6, L6 and €6 in

this

order.

Verify

alignment

knives.

Should

the

cutting

edges

gape

their

rear

ends

(point

away

from

oper

ator)

rci)cat

the

above

instructions

but

reverse

the

procedure

with

screws

and

M7,

Fig.

30,

i.e.,

loosen

screw

and

turn

screw

until

correct

alignment

knives

has

been

obtained,

then

tighten

screw

M7.

THE

SINGER

MANUFACTURING

COMPANY

•A

Trade

Mark

THE

SINGER

MANUFACTURING

COMPANY

All

Rights

Reserved.

Printed

Great

Britain

From the library of: Superior Sewing Machine & Supply LLC

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