Union Special 63400C, 63400KC User Manual

INDUSTRIAL

SEWING

FINEST

STYLES

63400 63400

®

QUALITY

c

KC

MACHINES

CATALOG

No.

121

KC

.

CLASS

STREAMLINED

HIGH

SPEED

LOCKSTITCH

THROW

UNION SPECIAL

63400

MACHINES

CORPORATION

CHICAGO

C a t a 1 o g N

(

S u p p 1 e m e n t t o C a t a 1 o g N

o.

1 2 1 K C

I N S T R U C T I 0 N S

F 0 R

A D J U S T I N G A N D 0 P E R A T I N G

S T 0 F P A R T S

L I

C L A S S 6 3 4 0 0

S t r e a m 1 i n e d L o c k s t i t c h

S t y 1 e s

o.

1 2 1 M )

6 3 4 0 0 C 6 3 4 0 0 K C

F i r s t E d i t i o n

@ 1 9 7 7

b y

U n i o n S p e c i a 1 C o r p o r a t i o n

R 1 g h t s R e s e r v e d i n A 1 1 C o u n t r i e s

UNION SPECIAL CORPORATION

INDUSTRIAL

SEWING

CHICAGO

MACHINES

P r i n t e d i n

2

U.

S.

A.

April,

1977

Each

into special. tain letter fixed

the the

UNION name Standard

letter

"Z".

to

the

SPECIAL

plate

Style

"Z". When Standard

only

machine

on

the

numbers

Example:

minor

Style

IDENTIFICATION

is

identified

machine.

have

"Style

changes

number. Example:

Style one

63400

are

OF

MACHINES

by a

numbers

or

more

C".

made

Style are

letters

Special

in a standard

"Style

number

classified

suffixed,

Style

63400 CZ".

which

as

numbers

machine,

is

standard

but

never

contain

a "Z"

stamped

and

con-

the

is

suf-

Styles

which

"63400".

junction

not

clarity,

KC

number, NOTE:

column.

those catalog

structions

herein.

in given of

differs

This

used

parts.

Opposite

When

Adjusting

in

This

this

from

handwheel

of

machines

from

catalog

therewith.

on

Style

certain

description,

ordering

Catalog

are

that

catalog

It

can

class.

the

and

the

ones pertain

also Reference

operator's

is

toward

63400 B

No. 121 M

similar

the

style

is a supplement

Only

63400 B

illustration

and amount

repair

operating

that

applies

be

the

number,

APPLICATION

those are

illustrated

parts

specifically

applied

position

are

page,

parts

instructions

for

Style

are

different

specifically to

direction,

operator.

in

construction

in

to

Catalog

parts

required.

always

with

which

shown

parts

63400 B. The

to

discretion

while

that

OF

and

in

use

for

from Styles

to

the

such

seated

are

grouped

it

contains

CATALOG

No. 121 M and

are

used

listed

phantom

are

identified

the

Styles

Style

63400 C and

Standard

as

part

only

63400 B

to

some right, at

the

to

under a class

no

letters.

should

on

Styles

at

the

back

help

number

63400 C and

Styles left,

machine.

locate

by

detail

listed

instructions

or

are

KC.

of

Special

front,

be

used

63400 C

of

this

the

number,

in

KC

are included

additional

machines

Styles

back,

Operating

number

Example:

in

con-

and

KC,

but

book.

63400 C and

part

the

second

similar

in in-

as

listed

of

machines etc., direction

For

to this

are

High Speed Heavy ulator, System, Bearing Driving Bar

63400 C

63400

Duty,

Stitch Head Adjustable Link,

11

1/8

For

1

1/2 pre.sse type depending

KC

Same

thread

Streamlined

Drop

Feed,

Length

Oil

Siphon,

Feed Timing on Lower Main

inches

miscellaneous

inch

.r

and

foot,

size,

on

as

wiper

(38.1

Style

Long Rotary Indicator,

Adjustable

Feed

(282.58

throat

operation.

and

Eccentric,

mm)

attachments

63400 C,

prepared

Arm

mm).

plain needle plate,

STYLES

Lockstitch

Hook,

and

except

for

OF

Horizontal

One

Hook

Needle

seaming

bar

travel.

feed

dog,

guides.

use

with

MACHINES

Machines,

Reservoir

Oil

Control,

Bearings

Shaft,

operations

Type 180

stitches

Maximum

equipped

needle

One

Hook

Shaft,

Enclosed

for

Maximum

on

per

recommended

with

"Klipp-It",thread

positioner.

Needle,

Push

Automatic

Take-up

Work

medium

GXS

or

inch,

Space

180

Light,

Button Head

Lever

to

and

heavy

GYS

thread

speed

Medium and

Stitch

Lubricating

Oiling, and

Needle

Right

needle. size,

of

weight

needle

5000 R.P.M. -

undertrimmer,

Reg-

Needle

Bar

Needle

work,

Specify

NEEDLES

Each U number denot es the The size number, measured

the

and

Needle description

Type 180

180

sample on

No.

GXS

GYS

To

label.

NION

SPECIAL

in

thousandths

size

number

Type 180 and

the

Round groove, um

140/054, 150/060.

Round groove, sizes 150/060.

have

needle,

A

shank,

plated -sizes

shank, 075/029,

needle

or

complete

kind

stamped

represent

GXS

sizes

round

wide

the

angle

round angle

orders

type

order

needle of

on

of

or

080/032,

has

both a type

shank,

the

an

180

available

075/029, 080/032,

promptly and would

point,

needle

inch

across

the

complete

GYS

Description

point, groove,

090/036,

size

read:

length,

shank,

the

symbol.

is

recommended

are

listed

and

lockstitch,

struck

lockstitch,

struck

100/040,

and

accurately

number

should

"1000

number and

groove, denotes eye.

below.

Sizes

short

groove,

090/036,

short

groove,

be

Needles,

size

finish

largest

Collectively,

for

Styles

length,

deep

100/040, 110/044,

length, deep 110/044,

filled,

forwarded.

Type 180

diameter

63400 C and

ball

spot,

ball

spot,

125/049,

an

empty

number. The

and

other

of

the

type

eye,

ball

eye,

chromium

Use

GXS,

single

point,

125/049,

single plated

140/054,

package,

description

Size

090/036".

type details. the

blade

number

KC.

Their

chromi-

a

used. stitch

size upon

kind to

above,

er

than

Selection

Thread

formation.

The

strength

of

the

size

The

following

of

thread.

which

the

Cotton

Size

30 B 36 A 40

should

thread

of

size

Thread

0

of

proper

pass

requirement

employed.

the

needle

table

The

choice,

may

dictate

specified.

needle

freely

SELECTING

of

The

employed.

shows

however,

the

Mercerized

so

60 00 70 000 80 90 0000

100

size

through

THE

the

seam

quality

the

preferred

selection

Size

0000

should

the

SIZE

OF produced

of

should

of a needle

Thread

A 0

be

determined

needle

THE

NEEDLE

the

work

size give

by

eye

in

order

is

largely

desired

of

needle

consideration

size

for a given

slightly

150/060 140/054 125/049

110/044 110/044 100/040 090/036 080/032 080/032 075/029

the

size to

dependent

is

largely

to

factors

to to to to to to

of

thread

produce

upon dependent

size

larger

Needle

Size

to

150/060

to

140/054

to

125/049 125/049 110/044 100/040 090/036 090/036 080/032

a good

the

and referred or

small-

4

IDENTIFYING

PARTS

Where

Parts

which

too distinguish

Part

appear.

IMPORTANT!

WHICH

PART

The

arrangement

replacement

The

ard

Styles

Each

plate

bled

position.

parts

with

particular

the

throat

chines.

Numbers

position

of ordering ed

view

plate

the

construction

small

numbers

IS

ORDERED.

parts

exploded

listed presents

On

their

view

plate,

in

the

parts.

carries

permits,

for a complete

one

part

from

represent

ON

ALL

the

ORDERS,

ORDERING

of

this

for

Styles

view

part

being

the part Always

in

a

the

feed

first

this

in

plates

catalog sector page

opposite numbers, shown.

dog,

and

column

the

illustration.

use

the a

reference

each

part

catalog

another same

PLEASE

catalog

stamping

part,

INCLUDE

OF

REPAIR

is

that

is

regardless

to

facilitate

63400 C and 63400

at

the

and

of

the

machine,

the

descriptions

Following

presser

are

back,

reference

cover

Style

63400 B

illustration

and

the

exploded

foot

parts

combinations

Reference

part

number

for

listed

each

is

stamped

are

similar

PART

PARTS

KC.

the

numbers

in

part

identified

in

of

the

NAME

AND

easy

differences

covered

being

aligned

will number view

plates,

only,

numbers

the

second

available

with

its by

part

letter

appearance.

catalog

STYLE

and

OF

accurate

between

in

Catalog

as

be

found a listing

of

pieces

are

available

and

merely

should

column. Each

for

number.

symbols

in

which

MACHINE

ordering

the

No. 121

in

their

required

plates

for

these

indicate

never

sale.

they

FOR

Stand-

assemof

in

covering

ma-

be

used explod-

of

M.

the

in

Sub-assemblies, or a solid can

be

furnished

the

description

29480

34 35

63458 H

36 37 38 39

660-360 670 G-18 670 G-23 660-347

In

catalog, parts ed

in

for

the

tration.

Success

UNION

tion, the

mum

SPECIAL its

most

effici~ncy

line

FM

those

no

cases

specific

the

various

description,

in

Needles

subsidiaries

approved

and

which

box on

for

repairs,

of

the

Rotary

where a

usage

USE

the

operation

scientific

durability

are

the

picture

main

sub-assembly.

Tension Rotary Rotary Female Male Wire Solenoid

part

will

machines

and,

if

GENUINE

and

Repair

and

authorized

principles,

sold

are

complete,

plate.

indicated

or

by

Component

by

indenting

separate

parts

their

part,

of

sub-assemblies,

descriptions

Example:

Release

Solenoid

Cov~r-----------------------------------

Assembly---------------------

Solenoid----------------------------------------Connector

Sleeve,

green--------------------------

Terminal--------------------------------------

Lead

is

be

are

necessary,

NEEDLES

of

these

Parts

are

assured.

Cover-------------------------------------

common mentioned not

distributors.

to

all

in

the

same,

the

difference

AND

REPAIR

machines as

furnished

and

are

of

the

description.

the

specific

PARTS

can

be by They

made

machines

will

secured the

are

with

Union

designed

utmost

usage

be

only

are

in a bracket

covered

by

However, when

will

be

shown

Special

with

in

the

genuine Corpora-

according

precision.

which

under

1 1

1 2 2

1

this

the

mention-

illus-

to

Maxi-

parts your

Genuine

are

guarantee

needles

stamped

of

with the

are

packaged

the

highest

Union

quality

with

Special

in

labels

trademark,

materials

5

marked

U S Em

and workmanship.

~

blem.

. Genuine

Each

trademark

repair

is

TERMS

!'rices

.tru

forwarded

wisu

directed.

CAUTION!

handwheel.

Before carefully box,

the

A

bag attaching cellaneous

The bracket, clamp

and

Insert

the

upper

are

f.o.b.

A

~1en

Using

leaving

packed.

following

of

assembly

screw,

attachment

bag

of

one

synchronizer

three

hinge

frame

strictly

shipping

charge

unpacking,

both

factory, After steps

PREPARATION

one

extra

to

assembly

clamps

studs

eyelet

net

is

hands

the

should

parts,

the

parts

lead

for

in

to

top

cash

point.

made

DO

on bed each

machine

OF

consisting

bobbin,

bed

for

wire

tension

holes

of

and

subject

Parcel

to

cover

INSTALLING

NOT

lift

casting,

UNION

and

be

followed:

MACHINE

two

hinge

plate,

Style

clamp,

release

provided

arm (A,

to

Post

the

postage

machine

lift

SPECIAL

accessories

FOR

INSTALLATION

of

one

studs,

are

packed

fi3400

one

KC screw

solenoid

for

them

Fig.

2A

change shipments

and

out

gently.

machine

have

frame

thread

and

with

also

for

lead

in

rear

or

2B).

without

are

insurance.

of

box

by

is

sewed

been

eyelet,

two

screws

each

machine.

includes

synchronizer wire.

of

cloth

notice.All

insured

placing

off,

unless

one

inspected

removed from

one

eyelet

for

holding

one

synchronizer

lead

plate.

shipments

other-

hand

on

and

packing

mis-

wire

Assemble

STANDARD

Included

one

bobbin clamp and are

TABLE

spring, screw, essential

TOPS

Lockstitch

the

bed

plate

ACCESSORIES

also

with

winder four

one

isolator

when

assembly, knee

setting

machines

is

FLUSH

each

lifter

pads

are

with

machine

the

assembly and

up

the

installed

the

is a box

machine

clips, machine.

top

of

mounting

and

its

and

in

table

the

machine

of

STANDARD frame,

rubber

one

machine

tops,

one

pad,

rest

prepared

mounting

ACCESSORIES-containing

oil

bed

positioning

pin.

with

drain

jar

These

cut-out,

and

spring

parts

so

its

frame.

that

6

MACHINE

MOUNTING

FRAME

INSTALLATION

On a suitable

cut-out

through

over

right

the

retaining

nuts

side

as but

within

1/16 the

shown.

lifter the

rises

lightly.

Place

inch

retaining

of Tip

must

Before

maximum

approximately

with

left

the

the not

rod the

the hinge

hinge

plate

sewing

(1.59

plate

board

machine

All

bind.

the

should

lift

head.

tableboard,

hinge

pad and

pad;

(21393

head

mm)

clearance smartly

and

end

play

machine

be

of

the

This

5/16

lugs

tighten

insert

R)

in

the

tighten

back

against

of

the

is

put

adjusted.

presser

may

be

inch

place

to

the

round

to

outside

frame

between

upward

locking

cross

into

The bar

done

(7.94

machine

rear

securely.Assemble

head

mounting,

the

with

nuts

the

rest

shaft

production, left and

by

setting

mm).

mounting

(Fig.

wood

a hammer

stop

its

1).

screw

front

and

cloth

securely. pin,

should

screw

parts

the

of

Insert

and

pan

after

plate

to

and

be

the

do stop

frame (21393

the

bed

positioning

tighten

section,

being

edge

and

insure

assemble

taken

bell

(22597 F)

not

a good

up by

crank interfere

screw

N)

countersunk

spring(63474

securely.

as

shown, and

sure

the

so

the

grip

knee

the

(21665

should

that

there frame

cone

be

with

the

in

the mac

is

sides,

on

press

J)

of set moving

presser

hin

wood

Assemble

screw

snug

about

rap

the

under-

assembly

bearings,

the

knee

so

that

parts

e

A)

up

bar

TABLE BOARD

22846Q-16

63476

·.'-21393R

. ·-65

'-

213935

1-1

6

-

63476C

Fig.

1

Additional Style Needle

63400

Positioner".

instructions

KC

will

be

found

for

preparation

in

the

applicable

7

of

section

table

frame

covering "Electro-Drive

for

installation

of

and

Fig.

8

2A

B

Fig.

2B

The

located when

in allow pulley the

belt scribed 121

M.

bobbin directly operation.

the

mechanism

of

the

to

under

winde

winder,

wind

"Winding

in

the

BOBBI

r sho

uld

be

secured

f ront

The b

to

of

t he sewi ng machi ne

ase

of the wi nd e r has two

be moved closer to

when

bobbin.

the

in

operation, Regulation

Bobbin",

N WI NDER

to Lhe t

should and

under

BELTS

able

belt

elongated

or

farther

exert

operation

OPERATOR'S

top

so

that

and

will

away from

only

of

INSTRUCTIONS

bear

attaching

enough

the

bobbin

belt

its

pulley

against

holes,

as

needed.

pressure

winder

in

Catalog

will

the

belt

which

against

is

de-

No.

be

The

These

Thread tively. threaded

reservoir

gauge line,

when

"LOW". 90 Union

2B).

the and

Threading

CAUTION!

Fill

(D).

located

needle

Use a

to

125

Special

Oil

The dial in a clockwise

machines

machine

from

left

must

main

Oil

to

is

stainless

seconds

specification

may

be

quantity in

the

are

Styles

at

the

to

Oil

has

be

filled

reservoir

is

at

the

right

to

the

at

100°

drained

of

oil

direction

equipped

63400 C

check

right.

been

maximum

black

drained

before

at

plug

of

line,

water-white

Fahrenheit

No.

from

supplied

of

to

THREADING

and

spring

OILING

starting

screw

safe

operating

"OPERATE"

located

175.

main

decreases

the

reservoir

to

arrow

use

either

KC

has

from

straight

the to

(C,

zone,

in

the

hook

(counterclockwise)

the

as

indicated

been

main

operate.

Fig.

level

to

the

mineral

main

by

oil

Ill

enlarged

marked

removing

is

flow.

"Vee"

reservoir

2A

or

2B)

when

"FULL".

left

of

oil

reservoir.

controlled

or

round

in

Figs.

for

clarity.

before

and

check

the

needle

Oil

"OPERATE"

of a Saybolt

This

plug

screw

by

dial

increases

belts.

2A

and

shipment

is

should

zone,

is

(E,

2B

respec-

Needle

oil

level

to

the

be

marked

viscosity

equivalent

Fig.

(F).

the

Turning

oil

is

and

at

black

added

of

2A

or

flow

the

to

It

is

a

long

recommended

period,

be

Fig.

that

lubricated

12A

a new

by

machine,

removing

parts. further

chine oil can

or

the

slowly to then

10

one head After

hand

the

be

that cover

oiling,

oiling

for

various

expected

has

and

will

several

parts.

without

been

out

oiling

replace

be minutes

Full

of

service

all

the

head

required.

to

speed

damage.

moving

cover

as

Run

distribute

operation

for

no

ma-

The

63400 B

instructions

headings

covered

adjusting

that

will

indicate

instructions

in

Catalog

are

INSTRUCTIONS

No.

different

the

page

for

121

from it

Styles

H,

the

can

FOR

HECHANICS 63400 C and

with

following

ones

be found

covered

in

that

KC

are

exceptions

in

Catalog

catalog.

the

same

and

No.

as

for

additions.

121

M,

Style

The

the

The

(11.11

This

dimension

by

tipping

and

relocating

stop

screw

be

obtainable.

NOTE: this

adjustment,

as

possible

presser

mm)

If

above

the

to

the

without

bar

the

should

machine

the

stop

the

right

Tighten

1/32

inch

the

PRESSER

connection

presser

be

1/32

back

screw or

left,

lock

(.79

bell

striking

crank

BAR

(A,

bar

inch

against

(B) on

proper

nut

(A)

mm)

should

it.

CONNECTION

Fig.

bushing

(.79

the

to

dimension

the

secure

be

16A) (B) on

mm)

rest

lifter

setting

on

set

(Pag

should

on

pin,

the Style

as

e 15)

Styl

Style

loosening lever of

stop

near

be

set

so

that

e 63400 KC,as shown

63400 C.

bell

the

presser screw

63400 C

to

the

This

lock

crank

bar

in

place.

cannot

underside

nut

(C).

connection

be

it

is

7/16

in

Fig.

is

accomplished

(A,

Fig.

By

turning

obtained

of

the

inch

16A.

15) the

should

by

base

When Fig. against its ly between

ure presser 1/16 ters to

the

(C)

16A)

lowest

when

and

To

from

inch

the

Set

bracket

PRESSER

locating the

the

position. there the the

obtain

the

foot

(1.59

middle

presser

the

is 4 3/4

Fig.

BAR

presser

throat

is a 1/16

bottom

top

of

this presser to

insure mm)

of

foot

needle

15

GUIDE

the

presser

foot

plate

The

inch

of

the

presser

setting,

spring

its

dimension,

the

needle

by

turning

thread

inches

(Page

must

with

guide

presser

bar

(D,

being

pull-up

(120.65

16)

bar

guide

rest

the

feed

is

set

(1.59

remove

slot.

mm)

bar

connection

Fig.

down on

center the

presser

bracket

(C,

directly

dog

proper-

space

guide

(A).

the

press-

16A)

Retighten

mm)

the

above

and

the

foot

in

loosen

throat

by

screw

spring

(G,

Fig.

the,throat

set

plate.

turning

(E)

in

regulator

16A)

screw

Set

it

guide

(F)

so

that

plate

Fig.

(E).

the

so

that

and

clockwise.

the

(Fig.

16A

Tap on

guide

the

apply

underside 16A).

the

to

the

needle

pressure

G

en-

of

11

1.

2.

3.

Set

the

spring

Solenoid plunger

inch

by

18A)

Tension

(J, pin ance in

(.127 and solenoid until

taken

tension

(1.59

loosening

as

Fig.

(H)

between

the

This

mm)

the

it

not

tension

eyelet

plunger

must

mm).

required. release

16A)

is

to

tension

can spacer

end

of

should

contacts

to

disc.

assembly

(A,

Fig.

pin protrude

If

adjustment

set

screw

solenoid with a set have

approximately

it

and

the

disc.

be

accomplished between

tension

then

the

exert

too

After

TENSION

(FOR

so

that

18A).

(H,

Fig.

a minimum

located

is

secured

screw

tension

the

release

be

slipped

solenoid

much

pressure

tightening

RELEASE

STYLE

the

16A)

is under

in

.005

release

by

placing

head

pin.

onto

plunger

set

(Page

63400

tension

must

of

1/32

required

machine

to

flat

bracket.

inch

of

solenoid

The

bushing

pin.

thereby

screw

17)

KC)

discs

touch

inch

move

arm

of

Solenoid

(.127

witl1out

a

.005

tension

and moved

Care

opening

remove

are

tension

(.79

tension

and

bushing

mm)

inch

plunger

release

should

spacer.

centered

release mm)

post

moving

plunger

clear-

thread

in

be

the

on

the

and

to a maximum

assembly

stop

screw

Fig.

check

the

of

in

(B,

18A

end 1/16

or

of

out

Fig.

4.

The release

and release above

NOTE:

the

slot

oil

gauge

TRIMMER

as

1.

There

pivot

be

made lease play

manual

The

then

Head

in

ADJUSTMENTS

follows:

should carrier

lever

or

thread

tension raising

point

the

throat

oiler

the

to

be

Remove

by

relieving

tension

connecting

sure

be

loosening

(C)

release

tension

release or

is

between plate.

bracket

it

ADDITIONAL

the

no

(A,

Fig.

and

the

when

lowering

must

rod.

reads

positioning

bind

28).

screw

taking

bind

cam (K,

the

presser

cam

can

be

to

suit

1/4

to

5/16

Tighten

locate

The

full

INSTRUCTIONS

or

shake

(B)

up as

wick

and

finger

This

on the the

screw

in

adjustment

the excessive case

Fig.

foot

positioned

the inch

securely.

the

needle

must

operates

FOR

and

lower

pivot

may

16A)

sewing

(6.35

contact

freely.

STYLE

knife

reend

be.

should is

raised

by

loosening

conditions.

to

bar

link

the

63400

assembly

can

be

7.94

set for

mm)

oil

wick

needle

KC

from

so

that

back

screw

The

of

presser

in

bearings.

machine

it

tacking.

(L,

average

the

and

will

Fig.

tension

foot

center

Check

proceed

not

16A)

lift

of

the

12

Fig.

28

TRIMMER

2.

Position

ing

ADJUSTMENTS

upper

finger.

knife

Check

0 good

(Continued)

(D)

parallel

to

see

If

this

the

eccentric

starting

centric

the

arm

with

that

the

is

not

so, bushing point

bushing of

the. positioning

lower

loosen

would

(F)

the

left

knife

(F)

located

side

is the until

be

to

approx.

finger

of

parallel

finger

the

have

(Fig.

the

with

set

knives

the

90°

to

30).

arm screw

are

the

of

the

(E) and

parallel.

hole

right

position-

upper

in

knife.

turn

the

side

A

ec-

of

3.

4.

Fig.

Assemble

machine.

finger holder projection the

and

1/32

projection

(Fig.

Locate

forward

solenoid pivot be

and

until

bobbin knife

inch

12A).

the

release

maintained

29

Adjust

knife

(A,

case assembly (.79

and

cutting

as

possible

lever

Adjust To lower

CAUTION: justment

tion positioning

right, a To position

positioning

the assembly

the

finger

Fig.

mm)

the

(B)

lever

when

12A)

holder

attaching

clearance

inside

solenoid

and

contacting

(D),

knife

adjust

knife

The

should

point

make

bobbin

recess

on

recess

edge

parallel

so return

lower

the

Be

or lower

the

of

these

knife.

finger

case

by

turning

the

screws

between

bracket

the

that

knife

lower

and

sure

parallel

not

finger run the

adjustments

and holder

is

positioning

(B) and

of

with

there

spring

until

counterclockwise

bushing

knife

extend

(B).

out

of

positioning

knife

the

at

the

tighten

securely,

the

bobbin

(A,

the

cutting

it

knife

adjustment

positioning

Fig.

is a 1/32

(A,

Fig.

beyond

As

the

cutting loosen

assembly

bobbin top.

finger

outside case

31) line solenoid

Fig.

turn

is

finger

the

allowing recess

just

flange

not

29) the

the

case

Place

finger

edge

as

of

feed.

inch

32)

contacts to

raise

turned

will

lower

into

plunger

have

in

its

left

edge as

indicated

screws

into

the

of

far

With

(.79

is

in

the

screw

it.

while

to

extreme

side

knife

(C) must

(A,

the

(C),

mm)

position.

upper

(G)

clockwise

making

be

checked.

left

of

the

moves

Fig.

adjust

clearance

to

coincide

at

point

30) and

30

cutting

knife.

this

arm

the

to

posi-

of

at

(D).

to

ad-

the

Fig.

12A

13

Fig.

31