UnionSpecial LF600 Series Setup guide

Adjusting instructions and

illustrated parts list

Two-

and

three-needle,

LF600

"Standard

Class"

differential

feed,

flatbed

coverstitch

machines.

From the library of: Superior Sewing Machine & Supply LLC

FOREWORD

This technical

manual

has

been

prepared to guide

you

the maintenance

your

new

UNION

SPECIAL

machine.

Careful

attention

the

instructions

for

operating

and

adjusting

these

machines

will

enable

you

maintain

the

superior

perfonnance

and

reliability

designed

and

built

into

every

UNION

SPECIAL

machine.

The

Adjusting

Instruction

portion

this

manual

explains

detail

the

proper

setting

for

each

the

components

forming

the

s~itch

and

completing

the

functions

the

machine.

Figures

are

used

illustrate

the

adjustments

using

reference

letters

point

out

specific

items discussed.

Adjustments

are

presented

sequence so

that

logical

progression

accomplished.

Some

adjustments

performed

out

sequence

may

have an

adverse

effect

the

function

other

parts.

Implementation

Preventive

Maintenance Schedule

can

bring

about

significant

improvements

operator

productivity

avoiding

costly

equipment breakdowns.

Whenever

becomes

necessary

make

repairs

replace

parts

your

machine~

sure

insist

genuine

UNION

SPECIAL

Repair

Parts.

These

parts

are

designed

specifically

for

your

machine and

manufactured

with

utmost

precision

assure

long

lasting

service.

This

has been

made

the

basis

avai1ab1e

information.

Changes

design

and/

improvements

may

incorporate

a s1i

ght

modi

cation

configuration

illustrations

part

numbers.

Reprinted

B/1192

CATALOG

NO.

143R

For

Styles

LF632K200MV

LF633K200MM

LF633K200MN

LF633K200MW

First

Edition

1987

Union

Special

Corporation

Rights

Reserved In All

Countries

Printed

in U.S.A.

From the library of: Superior Sewing Machine & Supply LLC

Each

UNION

SPECIAL

machine

identified

Style

number, which

this

machine

Class,

stamped

into

the

Style

plate

affixed

the

right

front

the

machine.

The

serial

number

stamped

into

the

bed

casting

the

left

rear

base

the

machine.

NOTE:

Instructions

stating

direction

location.

such

right,

left,

front,

rear

machine,

are

given

relative

the

operator's

position

the

machine,

unless

otherwise

noted.

The

handwheel

rotates

counterclockwise

operating

direction,

viewed from

the

right

end

the

machine.

STYLES

MACHINES

High

speed,

maximum

performance,

medium

sewing

capacity,

two

three

needle,

one

looper,

spreader,

differential

feed

flat

bed machines.

Totally

enclosed

feed and

looper

drive

mechanism,

fully

automatic

forced

feed

lubricating

system

with

easily

replaceable

oil

filter,

thumbscrew

adjustable

main

and

differential

feeds,

independently

driven

rear

needle

guard

and

quick

adjustable

looper

avoid.

LF632K200MV

Two

needle, four thread,

offset

differential

feed

machine

for

attaching

cellarettes

knitted

undergarments, long

length

rib

knit

strip

cut

perpendicular

the

wale

parallel

with

the

wale.

Stitch

type

602.

Standard

gauge

Nos.

and

12.

Speeds

6000

R.P.M.

Stitch

range 9

S.P.l.

LF633K200MM

Three

needle,

five

thread,

offset

differential

feed machine

for

attaching

cuffs

and

crotch

seaming

operation

knit

garments.

Stitch

type 605. Standard

gauge

No.

16.

Speeds

6000

R.P.M.

Stitch

range 9 to

S.P.l.

LF633K200MN

Same

as Style

LF633K200MM

except

fitted

with

tandem

differential

feed.

LF633K200MW

Same

as Style

LF633K200MM

except

fitted

with

parts

for

using a folder

attach

split

tube

borders

knitted

undergarments.

Stitch

range

9 to

S.P.l.

From the library of: Superior Sewing Machine & Supply LLC

SAFETY

RULES

CAUTION!

THIS

SYMBOL

INDICATES

YOUR

PERSONAL

SAFETY

INVOLVED

PREVENT

PERSONAL

INJURY:

-All

power

sources

the

machine

MUST

TURNED

OFF

before

threading,

oiling,

adjusting.

replacing

parts.

Wear

safety

glasses.

All

shields

and

guards

MUST

in position before operating machine.

NOT

tamper with

safety

shields,

guards,

etc.,

while

machine

in operation.

LUBRICATION

IMPORTANT:

Machine

must

in a leveled

position.

Oil has been

drained

from main

reservoir

before

shipment.

Use

straight

mineral

oil

with

a Saybolt

viscosity

125

seconds

100

degrees

Fahrenheit.

This

equivalent

UNION

SPECIAL

Specification

No.

175.

Remove

oil

filler

cap (A,

Fig.

and

fill

the

TOP

line

oil

level

gauge (B). Replace

oil

filler

cap.

CAUTION!

new

machines,

machines

that

have been

out

service

for

extended

period

time

machines

that

have been

drained

oil

and

refilled

•...

RUN

MACHINE

SLOWLY

300

R.P.M.

for

approximately

five

minutes

while

paying

strict

attention

the

oil

flow

indicator

which

should

rise

the

oil

filler

cap

(A)

and remain

steady

while

machine

running.

This

must

noted

ensure

that

oil

flow

indicator

functioning

and

oil

circulating.

Check

oil

level

while

machine

running

which

MUST

maintained

between

the

red

lines

oil

level

gauge.

maintain

maximum

recommended speed and

serviceability

these

machines,

refer

General

Preventive

Maintenance

Schedule.

Under

circumstances,

should

oil

remain

the

machine

for

than

one

year.

Oil

drain

plug

located

bottom

oil

pan.

ALWAYS

change

oil

filter

when

oil

changed.

this

time,

evaluate

the

contaminated

condition

the

oil

determine

the

oil

filter

should

changed more

less

frequently.

replace

filter,

remove

four

screws (C,

Fig.

and

cover

(0);

lift

out

filter

cartridge.

REMOVE

(brass)

BY-PASS

VALVE

FROM

TOP

OLD

FILTER

AND

INSTALL

NEW

FILTER.

Reassemble in

reverse

manner.

From the library of: Superior Sewing Machine & Supply LLC

l'l<.lt/1

LUBRICATION

DIAGRAM

•

PRESSURE

OIL

L'·IINLET

•

Fig. I

SIPHON

RETURN

FIL

TEA

BY-PASS

From the library of: Superior Sewing Machine & Supply LLC

PIVOT

GUARD

LEFT

FOR

THREAD

111A

THREADING

DIAGRAM

From the library of: Superior Sewing Machine & Supply LLC

NEEDLES

Each

needle

has

both a

type

and

size

number.

Type

number

denotes the

kind

shank,

point,

length,

groove,

finish,

and

other

details.

Size

number, stamped on

the

needle

shank

metric,

denotes

largest

diameter

blade,

measured midway

between shank and eye.

Collectively,

type and

size

number

represent

the

complete

symbol,

which

given

the label of all needles

packaged

and

sold

UNION

SPECIAL

CORPORATION.

Standard

recommended

needle

for

machines

covered

Type 128

GBS,

Size

75/029.

Below

the

description

and

sizes

available:

NEEDLE

TYPE

128

GBS

DESCRIPTION

Round

shank, round

point,

short,

double groove, struck groove, ball

eye,

spotted,

ball

point,

chromium

plated.

SIZE

AVAILABLE

65/025, 70/027,

75/029, 80/032,

90!036, 100/040.

have

needle

orders

promptly

and

accurately

filled,

an empty

package,

a sample

needle.

the

type

and

size

number

should

forwarded.

Use

description

label.

complete

order

would

read

1000

needles,

Type 128

GBS,

Size

75/029".

The

following

instructions

explain

detail

the

proper

setting

for

each

the

components

forming

the

stitch

and

completing

the

functions

the

machine.

Adjustments

are

presented

sequence

accomplished.

Some

adjustments

performed

out

effect

the

function

other

parts.

THREAD

MACHINE

ILLUSTRATED.

that

a logical

sequence

may

progression

have an

adverse

From the library of: Superior Sewing Machine & Supply LLC

Fig.

Fig. 4

TIMING

FEED

NEEDLE

Adjustment

would be

required

the

machine

feeding while

the

needles

are

in the

work.

This

can

accomp

1i shed

removing

top

cover,

head

cover,

left

cloth

plate,

and

top feed chamber cover. Rotate

handwheel

operating direction to position needle bar

bottom

stroke.

this

time,

the

first

screws

(A,

Fig. 2)

the

feed

drive

eccentrics

(B) must be

the

flat

the

feed

drive

shaft

and

vertical

position.

Adjustment

can

made

by loosening

two

screws (A,

Fig.

in upper mainshaft

sprocket

(B).

Hold

the

handwheel

firmly

with

needle

bar

bottom

stroke

and

rotate

pulley

as required

position

screws

(A,

Fig. 2)

they

are

vertical.

Tighten screws

(A,

Fig. 3)

securely.

SYNCHRONIZING

LOOPER

AND

NEEDLE

MOTIONS

NOTE:

End

cover

has

been removed

for

clarity

Figure

but

MUST

POSITION

WHILE

MAKING

THE

FOLLOWING

ADJUSTMENTS.

Looper

drive

belt

(A,

Fig.

has proper

tension

if,

when

turning

handwheel

operating

direction

position

looper

the

center

its

(right

left)

travel

there

noticeable

{right

left)

play

the

looper

mechanism.

There

should

approximately

1/8

inch

(3.2mm)

deflection

looper

drive

belt

when

pressing

firmly

with

thumb,

midway

between

sprockets

(8 and C).

Adjustment

can

made

1ooseni

two

screws (A,

Fig.

and

turn

looper

module

(D,

Fig.

4) counterc1

ockwi

se to

tighten

clockwise

loosen,

viewed

Figure'

Retighten screws (A, Fig.

5).

synchronize machine,

remove

needle bar

eyelet

guard,

needle

thread

take-up wire

holder,

needles,

presser

foot,

throat

plate,

looper,

and

feed dogs.

Turn

handwheel

position

needle

bar

BOTTOM

stroke

and

looper

holder

EXTREME

right

end

travel.

From the library of: Superior Sewing Machine & Supply LLC

SYCHRONIZING

LOOPER

AND

NEEDLE

MOTIONS

(Continued)

Using gauge

No.

21227

mount gauge

plate

with

throat

plate

attaching

screws.

Insert

(included

with

gauge)

into

looper

holder.

Mount

indicator

block

machine

head

with

one

of the screws

removed

from

needle

bar

eyelet

guard.

Insert

shank

indicator

gauge

into

indicator

block

and

tighten

screw

against

shank.

See

Sketch

for

reference.

Rotate

handwheel in

OPERATING

direction

until

the

looper

holder

contacts

gauge

plate.

Loosen screw

{A,

Fig.

needle

bar

connection

(B) and

position

needle

bar

(C)

required

set

the

pointer

indicator

gauge

"0" and

tighten

screw

(A)

VERY

LIGHTLY.

NOTE:

This

screw

specifically

tightened

ONLY

10-

in-lbs

(12-

em/kg).

Rotate

handwheel

REVERSE

direction

until

looper

holder

again

makes

contact

with

gauge

plate

and

note

the

reading

the

gauge. A

variation

(1)

graduation

the

scale

permissible.

the

reading

above

"0".

loosen

screws (E,

Fig.

4) and

turn

rear

looper

drive

sprocket

(B)

towards

the operator (clockwise

viewed

Figure

4).

the

reading

below

non,

turn

sprocket

away

from

operator

(counter-

clockwise

viewed

Figure

4).

Tempor-

arily

snug

screws.

Rotate

handwheel

OPERATING

direction

until

looper

holder

contacts

gauge

plate

and

note

the

reading

scale.

the

reading

above

"0".

loosen

screws

{E)

and

turn

sprocket

{B)

away

from

operator

(counterclockwise

viewed

Figure

4).

the

reading

below

"0",

turn

sprocket

towards

the

operator

(clockwise

viewed

Figure

4).

Temporarily

snug

screws.

Continue

OPERATING

pointer

graduation

handwheel

tightening

have

.002

sprocket

connecting

check and

adjust

both

and

REVERSE

directions

until

indicator

gauge comes

within

(1)

the

scale

when

turning

the

either

direction.

Before

screws (E)

securely,

sure

inch

(.051mm)

clearance

between

(B)

and

needle

guard

drive

rod

(F).

Fig. 5

Sketch

Fig. 6

From the library of: Superior Sewing Machine & Supply LLC

lr.?

SYNCHRONIZING

LOOPER

AND

NEEDLE

MOTIONS

(Continued)

LOQPFR

FRONT

t\Ei:OLE

Sketch B

OPERATING

DIRECTION

synchronizing

gauge

not

available

...

turn

the

handwheel

operating

direction

position looper point

even

with the

left

side

RIGHT

needle

and check

the

distance

from

the

eye

needle

the

bottom

ooper

blade.

Turn handwheel

reverse

direction

position

looper

point

even with

the

left

I OOPFR

BEHIND

NEEDLE I '

side

RIGHT

needle

and

check

the

distance

from

the eye

needle to the bottom of

looper

blade.

the

distance

was

greater

when

handwheel

was

turned

operating

direction.

shown

Sketch

B, 1oosen

screws

(E,

Fig.

and

turn

rear

looper

drive

sprocket

(B)

away

from

operator

For

Proper

SYNCHRONIZATION

looper

Ne~dle

the same

AI()H

Sketch C

REVERSE

DIRECTION

(counterclockwise

viewed

Figure

4).

the

distance

was

greater

when

handwheel

was

turned

reverse

direction~

viewed

Sketch

turn

sprocket

towards

the

operator

Looper

BEHIND

Needle

Looper in

FRONT of

(clockwise

shown

Figure

4).

Needle

Temporarily

snug

screws.

Continue

check

OPERATING

Direction

REVERSE

Direction

and

adjust

in both

OPERATING

and

REVERSE

Ale!!

Sketch D

directions

until

the

distance

from

the

eye

the

right

needle

the

bottom

of looper

blade

the

same

either

direction,

shown

Sketch

Before

tightening

screws

(E, Fig.

securely,

sure to

have

.002

inch

(

.051mm)

clearance

between

sprocket

(B)

and

needle

guard

drive

connecting

rod

(F).

Fig. 7

From the library of: Superior Sewing Machine & Supply LLC

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