UnionSpecial 50000 Series Einrichtungshandbuch

CATALOG NO.

T129

Second Edition

LES

563

00VF

300VG

Finest Quality

Adjusting instructions and

illustrated parts list

Series

50000

- M

achines

with

"Air-Kiipp

®" Chain

Cutte

From the library of: Superior Sewing Machine & Supply LLC

CATALOG

NO.

Tl29VF

(SUPPLEMENT

CATALOG

NO.

129M)

ADJUSTING

INSTRUCTIONS

AND

ILLUSTRATED

PARTS

LIST

FOR

SERIES

50000

MACHINES

WITH

AIR-KLIPP

VACUUM

TYPE

CHAIN

CUTTER

STYLES

56300

Second

Edition

1982

Union

Special Corporation

Rights

Reserved

All

Countries

Printed

U.S.A.

June,

1982

From the library of: Superior Sewing Machine & Supply LLC

IDENTIFICATION

MACHINES

Each

UNION

SPECIAL

machine

identified

a Style

number

name

plate

the machine. Style

numbers

are

classified

standard

and

special.

Standard Style

numbers

have

one

letters

suffixed, but never contain the

letter

"Z".Example:

"Style

56300

VF".

Special Style

numbers

contain the

letter

"Z".

\~hen

only

minor

changes are

made

in a standard machine, a

"Z"

suffixed to the standard Style

number.

Example:

"Style

56300

VFZ".

Styles of

machines

similar

in construction are grouped under a class

number

which

differs

from

the

style

number,

that

contains

letters.

Example:

"Class

56300".

APPLICATION

CATALOG

This catalog

a supplement to Catalog

No.

129

Fifth

Edition,

and

should

used

in conjunction therewith.

Only

those parts

which

are used

Styles

56300

and

56300

VG,

but not

used

Styles

56300

F or

56300

Gare

illustrated

and

listed

the

back

this

book.

For

clarity,

certain

56300

and

56300

G parts are

shown

phantom

assist

in locating the

56300

and

56300

parts.Opposite the

illus-

tration

pages, parts are

identified

a reference

number,

part

number,

description

and

amount

required.

Any

part

that

component

another

part

indicated

indenting

its

description under the description of the assembly or base

part.

Always

use the

part

number

in the second

column,

never use the reference

number

in the

first

column

when

ordering

repair

parts.

This catalog applies

specifically

to the Standard Styles of machines

listed

herein.

can

also

applied with discretion to

some

Special Styles of

machines

this

class.

References

direction,

such

right,

left,

front,

back,

etc.,

are

given

from

the operator•s position while seated

the machine. Operating direction

handwheel

toward

the operator.

STYLES

MACHINES

CLASS

56300

Advanced

High

Speed

Single

Needle

Flat

Bed

Machines,

Medium

Throw,

Needle

Bear-

ing

Needle

Bar

Drive, Light

Weight

Presser

Bar

and

Needle

Bar

Driving

Mechanism,

Single Reservoir Enclosed Positive Automatic Lubricating System,

Filtered

Oil

Return

Pumps

for

Head

and

Base, Lateral

Looper

Travel,

Large

Handwheel

and

Improved

Belt

Guard, Indexed

Thread

Ratio Control

Parts,

"Air-Klipp"

Vacuum

Chain

Cutter, prepared

for

use with

Knee

Press for Presser

Foot

Lifter,

Equipped

with

Disc

Thread

Tensions,

Maximum

Work

Space

to Right

Needle

Bar

8 1/4 Inches (209.6

mm).

56300

Equipped

with

thumbscrew

adjustable

frame

needle thread

eyelet

and

feeding presser foot, for

seaming

operations

such

attaching pocket facings, run-

stitching

pocket

and

cuff flaps

and

siMilar operations

koratron or permanent press

materials.

Seam

Spec. 401-SSa-1.

Type

128

GBS

needle.

Maximum

recommended

speed

6500

R.P.M.

56300

Equipped

with

thumbscrew

adjustable needle thread

frame

eyelet,

for

seaming

trousers,

coats

and

for

similar

operations

precured perma-oress material.

Seam

Spec. 401-SSa-1.

Type

128

GBS

needle.

Maximum

recommended

speed

6500

R.P.M.

From the library of: Superior Sewing Machine & Supply LLC

NEEDLES

Each

needle

has

both a type

and

size

number.

The

type

number

denotes the kind of

shank, point, length, groove,

finish

and

other

details.

The

size

number,

stamped

the needle shank, denotes the

largest

diameter of blade,

measured

dway

tween

shank

and

eye. Collectively, type

and

size

numb

er represent the complete symbol,

which

given

the label of

all

needles

packaged

and

sold

Union

Special.

Standard

recommended

needle

for

Styles

56300

and

56300

Type

128

GBS.

has

round

shank,

round

point,

short,

double groove, struck groove, ball eye,

spot-

ted, ball point,

chromium

plated

and

available in

sizes

080/032,090/036 , 100/040,

110/044, 125/049, 140/054,

060.

have

needle orders promptly

and

accurately

filled,

empty

package, a sample

needle, or the type

and

size

number

should

rwarded.

Use

description

label.

complete order

would

read:

1000

Needles,

Type

128

GBS,

Size 080/032

•

Selection of the proper needle

size

should

determined

siz

e of thread used.

Thread

should pass

freely

through needle

eye

in order to produce a

good

titch

for-

mation.

USE

GENUINE

REPAIR

PARTS

Success in the operation

these machines

can

secured only with

nuine

UNION

SPECIAL

repair

parts

furnished

the

Union

Special Corporation,

its

sub-

sidiaries

and

authorized

distributors.

They

are designed according to the most ap-

proved

scientific

principles,

and

are

made

with utmost precision.

Maximum

fficiency

and

durability

are assured.

IDENTIFYING

PARTS

Where

the construction permits, each

part

stamped

with

its

part

number.

some

of the smaller

parts

and

those

where

construction

does

not permit,

ident-

ification

letter

stamped

in to

distinguish

the

part

from

similar

ones.

Part

numbers

represent the

same

part,

regardless

catalog in

which

they

appear.

IMPORTANT!

ALL

ORDERS,

PLEASE

INCLUDE

PART

NAME

AND

STYLE

MACHINE

FOR

WHICH

PART

ORDERED.

TERMS

Prices are

strictly

net cash

and

subject to

change

without notice.

All

shipments

are forwarded

f.o.b.

shipping point. Parcel Post shipments are insured unless

other-

wise directed. A charge

made

to cover postage

and

insurance.

From the library of: Superior Sewing Machine & Supply LLC

FILL

MAIN

RESERVOIR

HERE

CAUTION!

FOR

CORRECT

OIL

LEVEL

NEEDLE

GAUGE

SHOULD

OPERATE

POSITION

FILL

ALL

OIL

RESERVOIRS

BEFORE

STARTING.

MACHINE

HAS

BEEN

DRAINED

BEFORE

SHIPPING.

Fig

. 1

THREADING

AND

OILING

DIAGRAM

FOR

STYLES

56300

and

VG.

The

oil

has

been

drained

from

the

machin

e before shipping

and

the

reservoir

must

filled

before

starting

to operate. Maintain

oil

level in

"OPERATE"

position

and

add

oil

when

needle

to the black

line

located to the

left

of the

"OPERATE"

zone

marked

"LOW".

The

machine

automatically lubricated

and

oiling

other than keep-

ing the

main

reservoir

filled

necessary. For

further

lubricating

instructions

refer

to paragraph

"LUBRICATION"

and

"RECOMMENDED

OIL".

Thread

machine

Styles

56300

and

in accordance with the

above

threading

diagram.

From the library of: Superior Sewing Machine & Supply LLC

LUBRICATION

Use

straight

mineral

oil

with a Saybolt

viscosity

125

seconds

100

degrees

This

equivalent to

Union

Special Corporation Specification

No.

175.

Before operating,

fill

machine

with

oil

plug

screw

{A,

Fig. 2).

While

filling

machine

with

oil,

check

gauge

(B).

When

proper

oil

level

reached,

gauge

need-

will

reaister

black

line

marked

FULL

• Oil

must

added

when

gauge

needle

registers

black

line

mark-

LOH'

1•

Although

the

machine

can

operated

safely

when

gauge

needle

registers

in the

0PERATE"

zone,

recommended

always

check

oil

level before operating,

sure

machine

filled

with

oil

to the

FULL

mark.

CAUTION:

NOT

over

fill

machine.

drain

oil,

remove

plug screw (C), or lower crank

chamber

cover

back

machine.

Oil

must

changed

every

2000

operating hours to minimize wear.

new

machines,

machine

out

service for

extended period of time;

lubricate

machine

as follows:

Remove

head

cover, clean out

lint,

then

directly

oil

needle bar

link

and

needle bar. Replace

head

cover

and

fill

machine

with

oil

to proper

level.

Run

machine

low

RPM

to ensure proper lubrication of

components

preventing

any

damage

which

may

occur

from

lack of

oil

distribution.

ADJUSTING

INSTRUCTIONS

OIL

GAUGE

CALIBRATION

recalibrate

oil

gauge, follow

instructions

in sequence as

listed:

-Place

machine

upright

a level surface.

Fig. 2

Remove

plug screw

(C,

Fig.

and

tip

machine

forward to drain

all

oil

from

reser-

voir.

Remove

lower crank

chamber

cover

back

of machine.

Fill

reservoir

until

oil

even

with

bottom

knee

press

shaft

bushing

{D).

Loosen

locknut

(E)

and

rotate

calibrating

screw

(F)

required

until

gauge

needle

registers

the black

line

marked

LOW

•

-Tighten

locknut (E), then replace plug screw

(C)

and

lower crank

chamber

cover.

Fill

machine

with

oil

until

gauge

needle

registers

black

line

marked

FULL

•

From the library of: Superior Sewing Machine & Supply LLC

SYNCHRONIZING

LOOPER

AND

NEEDLE

MOTIONS

Insert

looper into the looper rocker,

pushing

all

the

way

down

and

tighten

screw

against

flat

shank

of looper.

Turn

handwheel

in operating direction

un-

til

the point of the looper

{A,

Fig.

moving

to the

left,

even

with the

left

side of needle (B).

Note

the height of

the

eye

of the needle with respect to the

looper point

(See

Fig. 4).

Turn

the

hand-

wheel

in the reverse direction until the

point of looper again

moving

to the

left,

even

with the

left

side of needle

(See

Fig. 4).

the height of the

eye

of the

needle with respect to the looper point

are the

same,

looper

and

needle motions

are synchronized - a variation of

.005

inch

(.127mm)

allowable.

the

dis-

Fig. 3 tance

from

the

eye

of the needle to the

point of the looper

greater

when

the

handwheel

turned in the operating

direction,

the looper drive lever rocker shaft

will

have

moved

slightly

towards the

rear.

Moving

the

shaft

towards the

front

acts the reverse.

For

Proper

SYN

CHRONIZATION of

Looper

& Needle

these

o Dimensions will be the s

1164"

1/64"

(.4mm) (.4mm) --

-r

-~~~

Looper in

FRONT of

e N

in in

OPERATING REVERSE

Direction

Fig. 4

Fig. 5

NOTE:

The

1/64 inch

(.4rrm)

dimension

shown

in Fig. 4

for

final

setting

of needle bar height.

Adjust looper drive rocker lever

shaft

as follows:

Loosen

screw

{C,

Fig. 3) in looper drive lever

(D).

rod

of .146-40 thd. or

Union

Special

Screw

No.

22870

can

threaded into the looper drive

lever rocker

shaft

through the center of

thrust

ad-

justing

screw (E).

Tap

or pull

slightly

as required

to position

shaft

for proper synchronization. Tighten

screw

(C)

securely

and

remove

rod

or screw

used

position

shaft.

Loosen

lock nut

{F)

and

TORQUE

thrust

adjusting screw

(E)

to 6 in. lbs. (7cm/kg);

re-tight-

lock nut

(F)

securely.

With

looper

extreme

right

end

its

travel,

check

location of the center-

line

right

looper connecting

rod

bear-

ing using

gauge

No.

21227

CX.

Remove

nut

from

looper lever stud

{A,

Fig.

and

place hole in

gauge

(B)

over threaded

stud.

The

left

end

gauge

should locate

against the

RIGHT

side of looper rocker

cone

(C).

adjustment

necessary,

loosen

clamp

screw

(D), reposition looper

drive lever

(E)

required

and

retighten

screw

(D).

gauge

is not

available,

setting

can

checked

with a

scale.

Dim-

ension

from

centerline of stud

(A)

centerline of

cone

(C)

which

should bt

4 1/16 inch

(103.3mm).

From the library of: Superior Sewing Machine & Supply LLC

SETTING

THE

LOOPER

Insert

new

needle, type

and

size

speci-

fied.

Looper

gauge

5/32 inch

(3.97mm)

for

Styles

56300

and

56300

VG.

Set the looper

(A,

Fig.

the distance

from

the center of

the needle

(B)

to the point of the looper

(A)

5/32 inch

(3.97mm),

when

the looper

its

farthest

position to the

right.

Looper

gauge

No.

21225-5/32

(C,

Fig.

can

used advan-

tageously in

making

this

adjustment.

adjust-

ment

required, loosen nut

(D)

(it

has

left

hand

thread)

and

nut

(E)

connecting

rod

(F),

turn the connecting

rod

forward

backward

obtain the 5/32 inch

(3.97mm)

dimension.

Re-

tighten both nuts,

first

nut (E), then nut

(D).

Make

sure the

left

ball

joint

vertical

position

and

does

not bind

after

adjustment.

Fig. 7

The

looper

set

correctly

line-of-feed,

if,

moves

to the

left,

behind the needle,

its

point

(A,

Fig.

brushes, but

does

not pick

the

rear

of needle

(B).

adjustment

necessary,loosen

lock screw

(G,

Fig.

and

turn stop

screw

(H)

required. Turning stop

screw clockwise

sets

the looper to the

rear

and

turning

counterclockwise

acts the reverse.

Holding

looper to

the

front

while

making

this

adjustment

may

prove helpful. Tighten lock

screw

when

setting

obtained

and

recheck

the adjustment.

SETTING

HEIGHT

DLE

BAR

The

height of the needle

(C,

Fig.

correct

the top of

its

eye

l/64

inch

(.4mm)

below

the underside

the looper, with the looper point flush with the

left

side of the needle

(See

Fig.

4).If

adjustment is necessary,

loosen screw

(B,

Fig. 8)

and

move

needle bar

(A)

down

as required

and

ret

ighten screw.

Fig. 6

Fig. 8

e needle

have

equal clearance

the

right

and

left

sides of the needle

slot

throat

plat

The

descending needle

must

deflected

the

back

the

looper.

From the library of: Superior Sewing Machine & Supply LLC

SETTING

THE

FEED

DOG

Set the feed

dog

(A,

Fig.

in the

throat

plate

(B)

there

equal clearance

all

sides.

See

that

the

tips

of the

teeth

extend the depth of a tooth or approx-

imately 3/64 inch (1.19

mm)

above

the

throat

plate

and

are

parallel

with the

throat

plate

high

point of

travel.

Adjust the support screw (C),

under the feed dog, to maintain

this

setting.

Screw

(D)

used to hold feed

dog

position.

Fig. 9

feed

dog

teeth

are not

parallel

with the

throat

plate,

loosen nut

(A,

Fig.

10)

and

turn

screw

(B)

clockwise to lower the

front

teeth,

or counterclockwise to

raise

the

front

teeth.

Retighten nut

when

feed

dog

set

properly.

Fig.

Should

necessary to

move

the feed

dog

to the

left

right,

loosen screws

(A,

Fig.

11)

which

hold the

feed rocker

(B)

onto the feed rocker

shaft

(C),

and

move

feed rocker to desired

position

and

retighten

screws.

Make

sure the feed rocker

arm

(D)

does

not bind

after

making

this

adjustment.

When

handwheel

turned in operating

direction

the

feed

dog

should

have

equal clearance

both

ends

of the

throat

plate

slots

with feed travel

set

to desired

stitch

1ength.

Should

necessary to

move

the feed

dog

forward

or backward, loosen nut (E, Fig.

11)

which

clamps

the

feed rocker

arm

to the feed rocker

and

move

the feed

rocker forward or

backward

as needed

and

retighten

nut.

CHANGING

STITCH

LENGTH

Set the

stitch

to required length. This

accomplished

loosening locknut

(F, Fig.

11)

1/2 turn

(it

has

left

hand

thread)

the

end

of the

stitch

regulating

Fig.

stud

and

turning the

stitch

adjust-

ing screw

(G)

located under the

left

end

of the cloth

plate,

in the

head

main

shaft

(H),

which

marked

with

and

• Turning the screw

clockwise shortens the

stitch

(moves

stitch

regulating stud toward the

)

and

turning

in a counter-

clockwise

direction

lengthens the

stitch

(moves

stitch

regulating stud

toward the

Retighten locknut

securely.

prevent

destructive

damage

to the feed drive bearing,Key

screw

(J)

must

engage the

shaped

key

slot

ferrule

(K).

NOTE:

Any

change in

stitch

length

will

necessitate

a corresponding

change in

rear

needle guard

setting.

From the library of: Superior Sewing Machine & Supply LLC

CHANGING

STITCH

LENGTH

(Continued)

Machines

having needle bearings in the feed rocker

.locations

(L. Fig. 11)

may

require repacking

after

years of service. Bearings

should

tnroughly cleaned

and

repacked with

Union

Special Corpor-

ation grease

No.

28604

SETTING

REAR

NEEDLE

GUARD

Set

rear

needle guard

(C,

Fig.

10)

horizontally

that

does

not

quite

contact the

rear

of needle

(D)

when

its

most

forward

point

travel.

A clearance of .005 inch

(.127mm)

permissible.

should

set

low

as possible,

yet

have

its

vertical

face ap-

proach within about 3/64 inch

(1.19mm)

of the needle,

until

the

point of looper (E),

moving

to the

left,

even

with the needle.

move

needle guard forward or backward, loosen screw (F),

move

needle guard

required,

and

retighten screw.

raise

or lower

needle guard, loosen screw (F),

and

turn screw

(G)

clockwise to

lower needle guard or counterclockwise to

raise

it.

Retighten screw

(F)

after

guard

properly

set.

NOTE:

Any

change in

stitch

length will require a

change

rear

needle guard

setting.

THREAD

TENSIONS

Tension

the needle thread should

only

sufficient

to produce uniform

stitches

the under surface of the

fabric.

Pull needle thread through the eyelets

and

set

the

needle thread tension

ounces

(85.05

gr).

Looper

thread tension

applied

the

cast-off

sup-

port tension disc assembly,

and

the adjusting nut should

set

that

the tension

looper thread

just

suf-

ficient

to steady the thread.

THREAD

TENSION

RELEASE

Thread

tension release

set

correctly

when

be-

gins to function

the presser foot

raised to within

1/8 inch

(3.17mm)

of the

end

its

travel

and

entire-

ly released

when

the presser foot

has

reached

its

highest

position.

adjustment

needed, loosen tension release lever

Fig.

screw

(A,

Fig. 12), located

the

back

the

machine

and

move

tension disc separ-

ator

as required. Retighten screw. After adjustment there should

binding

any

point.

PRESSER

BAR

HEIGHT

(FOR

56300

VG)

Height of presser bar

(D,

Fig.

13)

set

correctly

possible to

remove

the presser foot

when

foot

lifter

lever

(B,

Fig.

12)

fully

depressed.

From the library of: Superior Sewing Machine & Supply LLC

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