Union Special 39500PA, 39500PE, 39500PF, 39500PP, 39500PT User Manual

CATALOG

NO.

Adjusting

instructions

and

103PA

First Edition

STYLES

39500PA 39500PE 39500PF 39500PP 39500PT 39500PW

illustrated parts list

([)

Class with thumbscrew adjusted

Finest Quality

39500-Differential

feed overseamers

feed travel

FOREWORD

This technical

new

UNION

SPECIAL adjusting these liability

setting functions

Check rectly.

designed

The

Adjusting Instructions portion of

for

each

of

the machine.

and

Procedure.

The

Procedure

manual

has

machine. Careful

machines

and

of

will enable

built

the

components

into every

The

Check

is

given to explain the proper steps to

been

prepared to guide attention

related to forming the

text

of the Adjustments

depicts conditions

adjustments are required. Figures are ence

letters

to point out

specific

items discussed.

Adjustments are presented in sequence plished. the function of other

Some

adjustments performed out of sequence

Implementation of preventative maintenance procedures cant Whenever sure to fically

improvements

it

becomes

insist

for

on

your

in operator productivity

necessary to

genuine

machine

UNION

and

make

SPECIAL

manufactured with utmost precision to assure long

ing service.

you

in the maintenance

to the instructions for operating

you

to maintain the superior performance

UNION

used

repairs

Repair Parts.

SPECIAL

this

manual

machine.

explains in

stitch

is

divided into

when

the parts are adjusted cor-

be

to

illustrate

so

that

a logical progression

by

avoiding costly equipment or

replace parts

the adjustments using

may

have

an

can

bring about on

These

parts are designed speci-

detail

and

taken in the event

adverse

your machine,

of

your and

and

re-

the proper

completing the

two

sections -

refer-

is

accom-

effect

on

signifi-

breakdowns.

be

last-

To

simplify exploded views. VIEW

which

illustrated

presents the

on

identification

These

illustrations

mechanisms

this

page

will appear

of

repair

will usually

of the

shaded

Catalog

For 39500 39500 39500

PA PE

PF

First

Copyright

Union

Special Corporation

Rights Reserved

parts, machine

in the

No.

103

Styles

Edition

1981

By

In

All

the

mechanisms

be

shown

assembled.

KEY

PA

39500 39500 39500

pp

PT

PW

Countries

are

illustrated

in conjunction with a

The

specific

VIEW.

by KEY

parts

Printed

May,

In

1981

2

U.S.A.

High

Speed,

ential

feed overseaming machines. Fabric trimmer with spring pressed lower knife.

Independent

automatic

one

and

two

thumbscrew

lubrication

CLASS

curved needles,

adjustments for

system.

Fan

cooled.

DESCRIPTION two

loopers, three

main

and

differential

and

four thread,

feed

travel.

differ-

Enclosed

39500

woven

PAfabrics.

straight

(2.4mm),

STITCH SEAM

FEED

MAXIMUM

(Depending

AND

TYPE

..........

SYSTEM

........

SPEED

on

Operation) LUBRICATION

One

needle,

........

Stitch seams l/8

on

inch

pajamas (3.2mm),

......

low

range

504

.

512

Independent

.

Main 6500

.

7000

Enclosed Automatic Splash

.

Return

capacity

is

8-20

and

women's

5/32 inch

TECHNICAL

SSa-1, Styles SSa-2, Style

DATA

39500

thumbscrew

and

Differential Feeds.

RPM, RPM,

Styles Styles

39500 39500

Pump

MACHINE

machine S.P.I.

STYLES

for

sewing

Typical application -

underwear. Available

(4mm).

PA,

PE,

PF, PP,

PT

PW adjustments for both

PF,

PP,

PT,

PW

PA,

PE

System

light

with

to

mediumweight

Seam

Widths: 3/32 inch

For

Oil

seaming

knit or

long

39500

tion -

39500

PE -Same

Seaming

PF -Same

heavyweight knit

T.P.I. 39500 39500

Maximum 39500

1 7 I

64

Each stamped

The

Stitch PPPT -Same

shirring PW -Same

inch (

UNION

in the

serial

Same

6.

7mm)

SPECIAL

number

machine.

as

39500

women's

as

39500

or

woven

range

as as

is 39500 39500

ratio

as

39500

.

machine

style

plate

is

stamped

PA

except

robes

PA

and

except

fabrics.

8-16

S.P.I.

PF

except equipped with a

PF

except prepared

is

3 to

PP

except

fitted

lingerie.

machine

Also

1.

Available machine

IDENTIFICATION

carries a style located to the

in the extension of casting

with

narrow

is

high capacity

sewing

equipped with a

main

for

continuous or

Seam

Width:

has

two

needles. Available

OF

MACHINES

number,

right

which

rear

of

parts.

for

sewing

main

feed

dog

having

intermittent

1/8 inch

on

this

(3.2mm).

class

the machine.

at

the

right

Typical applica-

dog

medium

having

12

to

16

T.P.I. shirring.

Seam

Width:

machine

is

rear base of

3

TO

PREVENT

THIS

SAFETY

PERSONAL

SYMBOL

INJURY:

SAFETY

A

CAUTION!

INDICATES

YOUR

RULES

PERSONAL

SAFETY

IS

INVOLVED.

-All

-

mineral equivalent to

oil

bulb

Clean Oil

power

justing Wear

All

shields

DO

NOT

Oil

Machine

level

on

To

magnetic plug of

MUST

sources to the

or replacing

safety glasses.

tamper

capacity

oil

with a Saybolt

at

oil drain

be

and

guards

with

of

UNION

is

filled

sight

level

changed

indicator

oil

remove

machine

parts.

MUST

safety

Class

SPECIAL

gauge

periodically

shields,

39500 viscosity

specification

with

oil

on

front will

magnetic plug

any

metallic material

MUST

be

TURNED

be

in position before operating

guards, LUBRICATION

is

eight

at

spring

of

register

to minimize wear.

ounces

of

90

to

No.

cap

machine.

between

from

THREADING

back

OFF

etc.,

that

while

(227

milliliters).

125

seconds

175. in top cover. Before operating,

When

proper

red

of

machine

may

gauge

before threading,

machine.

machine

at

oil

near

have

accumulated in crankcase.

100

level

lines.

is

degrees

bottom

oiling,

in operation.

Use a straight

is

reached, red

edge

F.

ad-

This

of base.

is

check

Be

sure

machine

Styles

arm wheel No. 660-240

thread, (3) needle thread.

arm

wheel

No.

thread, (3)

39500

Before threading machine; unlock presser foot release bushing,

and

in operating

Thread

Before threading machine; unlock presser foot release bushing,

and

in operating

660-240

Thread

PA,

cloth plate out

are furnished with machine

cloth

plate are furnished with machine

right

is

threaded properly according to threading diagram Fig. 1,

PE,

PF, PP,

THREADING

of

direction

in sequence

out

of

direction

in sequence

needle thread

PT,

or Fig. lA,

DIAGRAM

position

until needle

THREADING

position

until

STYLES

and

machine

as

shown;

DIAGRAM

and

needles are

machine

as

shown;

and

(4)

for

Style

39500

pull

is

to aid in threading.

(1) lower looper thread, (2) upper looper

STYLE

pull upper looper thread tube

to aid in threading.

(1) lower looper thread, (2)

left

4

PA,

uppe

r looper thread tube

at

highest position.

at

needle thread.

39500

PE,

39500

highest position.

PF, PP,

PW

PW.

PT

swing

up.

Thread

swing

up.

Thread

upper

presser

Turn

tweezers

presser

Turn

for

hand-

tweezers

looper

ROUTE

TENSION

THREAD

POST

THRU

SLOT

TURN TO PRESSER ARM

SWING PRESSER ARM

RELEASE

··

·

~.

ROUTE IN

THREAD

"'--

OUT

LOOPER

FRONT

PULL-OFF

··"~

~\,~

THREAD

OF

LOOPER

..

A

~··~

~

..

~

5

Fig.

1

TURN

TO

PRESSER ARM -

RELEASE

---.ll"!:j

6

Fig. 1 A

ADJUSTING

INSTRUCTIONS

CLASS

39500

NOTE:

Instructions

stating of machine, are given handwheel

right

rotates

end

of machine.

NEEDLES

EXAMINE

TYPE

CHECKS FORE LE

NEEDLE

AND

SIZE

GUARDS.

AND/OR

IS

BEING

TO

NEEDLE(S)

THE

NEEDLE(S),

DISCARD

AND

NEEDLE(S).

- Place a alongside the

new

needle of the

existing

vature of needle blade

-

Apply ness and/or shown

-

Check

the thumbnail

hooks

(B,

Fig. 2).

for

any

sharpness around

on

grooves of needle(s). forth through the needle shred

and

severe the thread.

direction

relative

or

location,

to

operator's

clockwise, in operating

NEEDLES

USED.

REPLACE

as

test

the

TO

ASSURE

THE

FOLLOWING

MUST

same

needle to

shown

to tip

For

eye

BE

MADE

LOOPERS

ANY

OR

DEFECTIVE

type

and

check

{A,

Fig. 2).

check

for

of needle(s) as

eye

and/or

a quick check, pull

as

shown

PROPER

BENEED-

cur-

blunt-

(C,

size

Fig.

such

as

position

direction;

the thread

2).

If

any

right,

when

left,

at

the machine.

viewed

Fig. 2

up

and

sharpness

down,

exists,

front from

back

or The

the

and it

rear

will

-

Be

sure needle(s)

the spot or

Machines

chart

per

The

39500

NEEDLE

154

machines.

TYPE

GAS

scarf are

machine

39500 39500

following

groove, struck groove, spotted, chromium

is

all

the

way

up

in needle holder

to the rear

sewn

off

and

as

shown

shipped

(D,

Fig. 2).

from

the factory with needle(s)

style:

Machine

PA,

PE,

Sty

PF,

le

PP,

PT

PW

chart

lists

additional needle types

DESCRIPTION

Round

shank,

round

point, curved

blade, standard length, single

plated.

and

positioned

correctly

listed

Type

and

Size

154

GAS-075/029

154

GAS-090/036

and

sizes available for Class

SIZES

AVAILABLE

055/022, 065/025, 070/027,

075/029, 080/032, 090/036, 100/040, 110/044, 125/049, 140/054, 150/060

with

in

154

GBS

Same

as

154

GAS

except

it

has

a

double groove.

7

070/027, 075/029,

080/032

NEEDLE

TYPE

DESCRIPTION

SIZES

AVAILABLE

154

GES

154

GHS

154

GJS

154

GLS

To

have

needle orders promptly needle or type complete order

Same

as

154

GAS

shorter blunt point.

Same

as

154

ba

11

point. as

154

tapered b

as

154

GAS

1 a de.

GAS

ball eye.

and

size

would

number

except

and

should

needles,

it

has

a

it

has

a

it

has

a

it

has

a

accurately

be

forwarded. Type

154

filled,

GAS,

NEEDLE

Rotate presser foot release bushing

counterclockwise

left.

Turn

handwheel until needle(s) clamp

(A,

nut using socket

Fig.

3),

then

055/022, 065/025, 070/027,

075/029, 080/032, 090/036,

1 00/040,

11

0/044, 125/049,

140/054, 150/060

065/025, 070/027, 075/029,

080/032, 090/036

055/022, 065/025, 070/027, 075/029, 080/032, 090/036, 100/040

070/027, 075/029, 080/032,

090/036, 100/040

an

Use

description

Size 075/029

empty

package, a

on

label.

11

•

REPLACEMENT

and

swing

presser foot to the

in operating direction

is

at

lowest position.

wrench

remove

needle(s).

No.

21388

sample

A

Loosen

AU

Fig. 3

Fig. 4

is

at

all

the

scarf

Turn

handwheel

highest position.

way

up

in needle holder with spot or

to

the

rear.

presser foot to the

sewing

position with presser foot release

bushing.

NEEDLE Check: Needle(s)

slot(s) shown remove

must

(left

to

in Fig. 4.

fabric

guard

enter

right)

off.

until needle holder

Insert

Tighten right

and

new

clamp

nut,

lock foot into

ALIGNMENT

the center of needle

in

If

adjustment

and

looper thread

throat

plate,

is

(B)

needle(s)

swing

as

necessary,

pull-

8

Procedure:

Loosen

(A, slot(s) driving Temporarily tighten

needle driving

Fig.

5)

and

of

throat

arm

(B)

arm

clamp

screw

center needle(s) in needle

plate

left

by

to

right

clamp

adjusting needle

as

required.

sc.rew

(A), then

proceed to needle height adjustment.

NEEDLE

HEIGHT

Check:

Rotate

needle(s)

height

top of as

handwheel

measurement

throat

shown

in Fig. 5.

is

in operating

at

highest position.

from

plate

point of needle(s) to

must

be

direction

1/2 inch

Procedure:

Loosen

obtain needle height

thread

clamp

screw

pull-off.

(A)

shown

and

adjust

needle driving

in Fig. 5, then tighten

until

The

needle

(12.7mm)

arm

clamp

(B)

front screw

Fig.

to

(A)

5

back

and

as

required to

replace looper

PRIOR

MAIN,

BLADE

TO

MAKING DIFFERENTIAL ASSEMBLY.

Remove ing screw and

screw

{B) (D)

Before replacing cloth

(C)

and

tighten screw

move

swing plate flat

machine

end

play, open to

machine

and 11V

bed.

when

11

notch of stud

THE

FOLLOWING

AND

CLOTH

cloth

plate

and

lifting

still

yet

assembled to

allowing cloth

assembled.

by

inserting

notch to the

Tighten screw

(C)

against screw

ADJUSTMENT;

CHAINING

PLATE

{A,

Fig.

upward

plate,

(D)

only

Assemble

stud

rear

(B)

FEEDS.

6)

by

ON

loosenwith stud plate.

hold stud

enough

to

plate

to

cloth

(C)

with

into hole

to press 11V

(D).

REMOVE MACHINE

(C)

re-

of

11

CLOTH

PLATE,

STYLE

39500

CHIP

GUARD,

PT

REMOVE

Fig. 6

UPPER

THE

SHIRRING

KNIFE,

9

Check:

LOWER

LOOPER

Fig. 7

left

needle

on

Style Procedure: PRIOR Gauge

TO

ADJUSTING

No.

21225-l/8 or 21225-1/16 should

LOOPER,

Position lower looper looper to extreme er

shaft handwheel set

looper point to touch but

right

to obtain

to position looper into

and

tighten

left

l/8

clamp

39500

(A)

and inch

nut (C).

PW.

Point of looper should touch but

POSITION

to extreme

set

looper

(3.2mm)

scarf

NOT

deflect

PRIOR FRONT

LOOPER

TO

CHECKING

AND

REAR

GAUGE -With position, 1/8 inch between

1/16 inch 39500

LOOPER

looper point

(1.6mm)

PW,

as

shown

CLEARANCE in operating direction

from

UPPER

right

gauge

or 1/16 inch

the extreme

LOOPER

be

and

by

UP

used

to properly

loosen

adjusting looper in or out of the loop-

(1.6mm)

of needle or

AND

left

needle(s), then position looper to extreme

LOOPER

NEEDLE

GUARDS.

looper

(3.2mm)

and

to

left

in Fig.

TO

NEEDLE(S) -Turn

left

into

AWAY

FROM set

clamp

nut (B).

for Style

needle

ADJUSTMENT;

at

extreme

is

the distance

centerline

needle

on

7.

so

that

looper

scarf

NOT

LOWER

of needle or

deflect

LOOPER.

looper gauge.

Then

on

39500

Style

PW.

REMOVE

left

of needle; Style

handwheel

travels

needle(s).

position

Rotate

39500

PW

and

Fig. 8

needle(s) while also

setting

with needle thread as loop

(C)

securely.

Guard

looper

at

must

any

NOT

interfere

point of

travel.

Remove holder into

{A,

throat

Replace (C)

with

of knife holder as

screw

(C)

ing guard to

Rotate

so

lower looper

left

into

surface of guard

guard as

is

being

low

formed

as possible to prevent

to

rear

with lower knife holder

REAR

NEEDLE

spring

Fig.

plate

from

8),

then assemble knife holder

support block.

rear needle guard

front

edge

of guard centered in

shown.

to hold guard in

be

adjusted.

handwheel

scarf

(D)

of needle(s). Set guarding

in operating direction

travels

(B) to touch but

GUARD

inside of lower knife

(B)

using screw

Temporarily tighten position,

from

yet

the extreme

NOT

it

from

interfering

of needle(s), then tighten screw

movement

or contact lower

slot allow-

deflect

10

FRONT

NEEDLE

GUARD

Replace front needle guard

(F)

to

hold

screw

Rotate then mately

set

.004 inch (.

needle(s}

PROPER

ADJUSTMENT ESSENTIAL THE

PATH

THE

MAXIMUM

Rotate

and

closely observe the path of upper looper

it

as

travels

handwheel

guarding surface of guard

is

FOR

TRAVELED

SEAM

handwheel

proches the lower looper The in

ance

point of

head

of

and

upper

lower

pass under lower looper thread.

guard in position,

in operating direction until needle(s)

lOmm)

NOT

being pinched

UPPER

OF

SUCCESSFUL

BY

and

LOOPER

THE

UPPER MACHifiE

THE

UPPER

THICKNESS

in operating direction

from

the extreme

as

looper

looper with

SEWN.

MUST

(E,

tighten

between

LOOPER

OPERATION.

LOOPER

right

shown

in Fig. 9.

pass the notch

minimum

Fig.

8)

using screw (F). Temporarily tighten

yet

allowing guard to

(E)

to needle(s) with

screw

(F)

front

securely.

and

IS

EFFECTS

and

ap-

clear-

rear

be

adjusted.

is

at

minimum

Check

clearance - approxi-

adjustment to ensure

needle guards.

Fig. 9

lowest position,

Again upper looper as

shown

upper looper

rotate

is

positioned to extreme

in Fig. 10.

MUST

scending needle or

right

the extends previously must

NOT at

any

of the upper looper thread,

from

the

eye

formed

contact the

point of

travel.

Figures 11, 12, justing

the upper looper

MACHINE

STYLE

39500

PA,

PE

the

handwheel

At

be

in position

right

needle will pass to

this

until the

time, point

so

of the looper to the

stitch.

lower

13

SHANK ABOVE

DIM. l/32 inch

The

upper looper

looper or needle(s)

and

the following chart

at

extreme

EXTENDED

HOLDER

non

FIG.

11

8mm}

(.

left

the de-

which

right

DIM.

31/64 inch

of

relate

and

left

HEIGHT

THROAT

nEn

ABOVE PLATE

FIG.

10

Fig.

approximate dimensions for ad-

positions of

13

(12.3nm)

travel.

POINT CENTERLINE

DIM.

5/32 inch

OF

nFn

LOOPER

OF

FIG.

(4nm)

TO NEEDLE 13

39500

PF, PT,

PP, PW,

3/32

inch

(2.4mm)

35/64 inch

(13.9mm)

11

9/64 inch

(right

Style

needle

PW)

(3.6mm)

on

t

...

tions

To

adjust

listed

upper looper, follow

in sequence as follows:

instruc-

Fig.

11

1. Position upper looper travel,

and

Fig. ly tighten

2.

With

end holder

looper in (

C,

3. Rotate bringing the upper looper into the lower looper,

(A, looper to head ance.

4.

Again ection extreme

(C,

er

er throat

loosen

set

looper

11

above

upper looper positioned

of

travel,

(B)

slightly

Fig. 12, then temporarily tighten screw

Fig.

11

handwheel

See

Fig.

11)

of lower looper with

rotate

until

left

Fig.

11} as required to to dimension

plate.

clamp shank

holder (B), then temporari-

screw

as required to

) .

enter

(A).

loosen screw

back

in operating direction

Fig. 9.

and

set

the notched area behind

handwheel

the upper looper

end

of

and

rotate

set

"E"

at

the

left

end screw to dimension "0"

of

Loosen the point of upper

travel.

point of

Fig.

{A,

Fig.

11)

at

the

right

(C)

and

rotate

set

shank

vertical,

screw

minimum

in operating

is

Loosen

upper looper hold-

13

from

as

clear-

at

upper

top of

of

dirthe screw

of

shown

loop-

Fig.

12

13

5.

6.

With

upper looper

left

end

of

travel, adjust the looper holder in shaft "F" right to position upper looper to the of and

If upper looper, clearance to the needle(s) can looper

will then

the angle

Also See

position the upper looper

needle(s).

to

set

point of looper to dimension

Fig.

13

to the

needle

travel,

screw

the needle(s}

be

increased

shank

reset

Step 3. Reversing

centerline.

then tighten screw

(A)

above

be

necessary to

back

upper looper to lower looper,

still

it

left

securely.

is

being deflected

by

reducing the length

holder,

of

vertical,

positioned

may

be

necessary to

or

of

needle and/or

Rotate

{C,

See

slightly

See

this

procedure will

closer

at

out of

handwheel

right

Fig.

by

Step 1.

reduce

Step 2.

to the

the its

end

11}

the

of It

12

MAIN

AND

DIFFERENTIAL

FEEDS

ASSEMBLE

AND

THROAT Check: Rotate

teeth face level with the feeds teeth

(1.2mm) Procedure: Loosen

feeds, then tighten lock screw

Loosen above

On

all

set

height of chaining feed

screw

MAIN,

handwheel

of

rising

of

throat

at

highest position

should extend approximately 3/64 inch

above

lock screw

feed attaching screws

throat

Styles except

(D).

DIFFERENTIAL,

PLATE

TO

MACHINE.

in operating

feeds are plate. throat

throat

(A,

plate

as

plate

39500

above

The

feeds should

plate

of

as

Fig.

14)

shown

in Fig. 14, then tighten screws (C).

PW;

even

at

CHAINING

direction

the top sur-

this

travel,

shown

and

(A).

(C)

and

with feeds

with the

FEEDS

time.

their

in Fig. 14.

rotate

adjust

until be

With

tilt

at

stitch

adjusting pin

feeds

highest

up

or

position,

tongue of

Fig.

(B)

down

to obtain proper height

throat

14

as required to level

loosen screw

plate,

then tighten

(D)

and

LOWER

INSERT

AND Check: Cutting

and

Examine

and Procedure:

Loosen

down

of

If

rear

and Adjust knife

to

Hold on tance specified

SPRING

ASSEMBLE

edge

parallel

sewn

appearance.

screw

until

throat cutting

as required, then tighten screw (C). Holder

NOT

bind, with needle guard centered in

specified

knife in

a piece of selected material to

from

BACK

HOLDER

of

knife with top surface of sample

(B)

and

its

cutting

plate,

edge

needle penetration to

seam

then tighten screw (B).

of

(A},

left

seam

width

this

width or appearance.

KNIFE

INTO

LOWER

TO

THROAT

(A,

for

specified

adjust

edge

knife

position

is

to

by

Fig.

right,

measuring

KNIFE PLATE

knife

is

tilted,

and

HOLDER SUPPORT.

15)

must

throat

seam

(A)

flush with top

by

tighten screw (F). Adjust

further

edge

be

even

plate.

width

up

or

loosen screw

slot

loosening locknut (E), screw

from

center of needle

check

of material. Readjust

Fig.

(C)

and

rotate

MUST

move

of knife holder.

adjustment,

freely,

to

cutting

UPPER

by if

15

holder

(F)

KNIFE; measuring the necessary, to obtain

(D)

front

left

to

and

set

edge

of knife.

then sew-off

to

right,

knife

dis-

13

UPPER

KNIFE

REMOVE

ARM.

NEEDLE(S)

ALSO

RE-ASSEMBLE

AND

Check:

At

lowest position the front

inch (.4 -

.8mm)

below

Procedure:

With

upper

knife

(G, knife firmly against front

of

Assemble

guard then tighten nut

tip

lower

(L)

of upper knife cutting

knife, then tighten

knife

clamp

against top surface of

{M).

RE-ASSEMBLE

UPPER

cutting

Fig.

15)

lower

knife, adjust knife holder

UPPER

KNIFE

tip

of upper knife cutting

edge

at

lowest position of travel

edge

screw

(K)

and

chain

upper

KNIFE

IN

HOLDER

AND

INTO

HOLD

SLOT

KNIFE

edge

of lower knife. ·

and

(H)

left

l/64 - l/32 inch (.4 -

(J).

guard

(L)

knife

in position using nut

and

slightly

back

OF

UPPER

FIRMLY

must

extend l/£4 - l/32

KNIFE

IN

POSITION.

while holding upper

to

.8mm)

of

right,

below

(M).

its

to position cutting

Set chain

cutting edge,

DRIVING

edge

Loosen

If

screw

{F)

desired, the

to enable spring pressed lower knife to

lower

knife

can

be

locked in position

knife holder.

NOTE:

Locking

nut

{E)

must

be

tightened to hold

also serves as a latch pin for cloth

plate.

LOCK

THE ROTATE POSITION.

Check:

Right left as

edge

shown

by

screw

(F)

PRESSER

HANDWHEEL

edge

of presser foot

FOOT UNTIL

of needle

Ref.

Point

move

freely

tightening

in position;

FOOT

ALIGNMENT

IN

SEWING

NEEDLE(S)

must slot A,

in throat plate

Fig.

left

screw

POSITION

IS

align with

16.

to

(F)

AT

right.

against

(F)

AND

LOWEST

Fig.

16

Presser foot The

adjustable must as

center over

shown

must

in Fig.

14

lie

stitch

16.

flat

on

throat

tongue

on

pr.esser foot

tongue of throat

plate.

plate

Procedure:

With release bushing screws lifter right left shown screws (8, Fig. lever

presser foot locked in

(A,

Fig. 17), loosen

(B)

and

lever

edge

shaft

of

of needle

Ref. point arm

(E)

clamp

presser foot aligns with the

so

screw (C), then adjust

(D)

left

slot

A,

Fig. 16. Tighten

17)

and

its

in

while holding

stop screw

sewing

to

right

throat

intermediate lever (G), tighten

(C).

Completely unlock release bushing (A,

Fig. 17). Plunger should

clear

without binding.

Loosen

tongue

screw (8, Fig.

(C)

left

to

right,

16)

and

adjust

to center over

Fig. 16, then tighten screw (B).

Check:

position

collar

until the

plate

(F)

is

clamp

presser

stitch

PRESSER

as collar lifter

against

screw

arm

stitch

FOOT

by

tongue of

LIFT

Fig.

throat

17

plate

as

shown

in

Lift Upper

presser foot to highest position

looper

must

not contact presser foot Procedure: Loosen

fere Loosen

is starts

locknut

(H,

Fig.

with upper looper, then tighten locknut

locknut

(K)

and

set

approximately 1/16 inch

to

rise,

then tighten locknut

Check: Sufficient

pressure

must

pressure will cause feeds Procedure: Rotate

positioned (M)

handwheel

below

clockwise

in operating direction

for

throat

more

plate.

pressure or counterclockwise

locknut (L).

17)

and

adjust

stop screw

(1.6mm)

free

(K).

PRESSER

be

maintained to feed

and

presser foot to

Loosen

and

rotate

at

stop screw

(H).

(F)

on

upper

motion

FOOT

PRESSURE

until

locknut

handwheel

any

point of

(J)

in

lifter

work

wear

both (L,

Fig.

in operating direction. travel.

so

presser foot will not

end

of

lifter

lever

arm

so

lever before presser foot

uniformly. Excessive spring

prematurely

main

and

17)

for

less pressure, then tighten

when

chaining.

differential

and

turn adjusting screw

feeds are

inter-

there

NOTE:

Adjusting screw Plunger

When against ment

must

clear

release bushing

throat

must

be

made.

(M)

presser

plate.

will

effect

arm

is

locked in position, presser foot

If

these conditions

the function of pressure release bushing

when

pressure release bushing

do

not

15

exist

is

unlocked.

must

be

held firmly

the following

(A).

adjust-