JUKI 812K Einrichtungshandbuch

From the library of: Superior Sewing Machine & Supply LLC

ILLUSTRATE

PAR

5 LIST

FOR

HEAVY

KARPEl

DUTY

MACHI

Model

8 I

·,

421

NORTH

MIDLAND

AVE.• SADDLE BROOK, N.J.

07662•

(20

796·8800

12) 929-4415

National

Distributors

Juki

& Kin

Indu

rial

/ng

Machi

From the library of: Superior Sewing Machine & Supply LLC

OILING DIAGRAM

Fig.

- I -

From the library of: Superior Sewing Machine & Supply LLC

THREADING

DIAGRAM

Fig.

From the library of: Superior Sewing Machine & Supply LLC

THREADING AND ADJUSTMENT

INSTRUCTIONS

FOR

KINGLINE MODEL

812K

HEAVY DUTY KARPET KING

812K

One

needle

heavy

duty

flat

bed

machine

for

overseoming

rugs

and

carpets.

Stitch

type

505-EFD-1

(modified).

----SETTING

UP MACHINE

Clean

machine

thoroughly.

Fill

oiling

system

and

oil

all

bearings,

particularly

the

eccentrics

the

main

shaft.

Run

the

machine

slowly

for

minute

allow

the

oil

wicks

corry

the

oil

the

bearings.

See

that

the

wicks

ore

saturated

the

flow

from

the

oil

reservoir

and

that

they

contact

the

oil

holes

the

strops.

Repeat

the

oiling

and

run

for

five

minutes

2.000

R.P.M..

Oiling

diagram

(Figure

available.

Put

in a

new

needle,

class

1970.

size

100

(SOE)

and

check

location

needle

throat

plate.

The

needle

should

center

the

front

end

the

throat

p l

ate

needle

slot.

The

needle

point

its

highest

position

should

;!"

inches

above

the

top

the

throat

plate

(Figure

3).

Remove

the

presser

feet,

cloth

plates

and

feed

dog

for

convenient

access

the

machine.

Loosen

the

screw

(::::

93A)

the

right

side

the

feed

bar

and

push

the

rear

dle

guard

(::

81225K)

for

enough

the

rear

ovoid

its

contact

the

needle.

Pla

the

left

hand

looper

the

looper

holder

and

set

the

looper

gouge

inch.

The

looper

gouge

set

when

the

looper

its

farthest

poini

travel

the

eft

(Figure

4). This

adjustment

accomplished

rocker

and

raising

lower

the

boll

Fig.

Feed

Dog

1-z

Left

hand

ooper

- 3 -

From the library of: Superior Sewing Machine & Supply LLC

joint

15442K)

the

slot.

Raising

the

ball

joint

decreases

the

looper

gauge

and

lowering

acts

the

reverse.

Looper

gauge

available

for

setting

the

looper.

Set

the

left

hand

looper

that

it is

the

back

the

needle

without

deflecting

it. This

adjustment

readily

made

loosening

the

two

screws

95)

the

looper

rocker.

Set

the

rear

needle

guard

that

barely

contacts

the

needle

its

most

forward

point

travel.

Set

the

distance

between

centers

6038K

& #

6039K)

the

right

hand

looper

drive

connecting

rod

81241)

straps

This is

done

loosening

the

two

nuts

(:!;

269

18)

the

pitman

rod

and

turning

the

rod

until

the

desired

measurement

obtained,

then

tighten

the

nuts

and

reassemble

the

connecting

rod

the

machine.

Set

the

right

hand

looper

gauge

that

the

point

the

right

hand

looper

passes

~~"

the

left

the

center

the

needle

when

the

looper

its

extreme

left

position

(Figure

5).

The

looper

gauge

the

right

hand

looper

controlled

moving

the

looper

drive

lever

(:;;

81238)

the

cross

shaft.

increase

the

looper

gauge,

move

the

lever

clockwise

and

decrease

the

looper

gauge,

move

the

lever

the

opposite.

When

tightening

the

screws

the

looper

drive

lever,

make

sure

that

there

end

play

the

cross

shaft.

This

may

done

pushing

forward

the

cross

shaft

and

the

same

time

setting

the

looper

drive

lever

tight

against

the

casting.

Re-check

the

setting

the

looper

with

respect

the

needle

each

time

the

loop

drive

leve

r is

shifted.

Right

hand

looper

Fig.

When

right

hand

looper

moves

the

right,

must

pass

the

needle

possible

without

deflecting

it. It

must

also

cross

left

hand

looper

possible.

The

adjustment

for

setting

the

right

hand

looper

made

loosening

the

two

screw

(:;:;:

318)

the

front

the

machine

and

moving

looper

shaft

bearing

sliding

block

(¢

255).

Moving

the

block

upward

brings

the

looper

closer

the

needle

and

moving

downward

brings

the

looper

closer

the

left

hand

looper.

The

loopers

themselves

can

turned

slightly

loosening

the

holding

screws

and

holding

the

oopers

the

desired

position

while

retightening

the

screws.

- 4 -

--------

From the library of: Superior Sewing Machine & Supply LLC

10.

With

right

hand

looper

its

extreme

left

position.

set

the

right

hand

looper

thread

take-up

eyelet

(;:=

81266KB)

in a

vertical

position

being

careful

that

the

left

hand

looper

gauge

not

changed

when

nut

(::::

9937)

loosened.

11.

Put

the

feed

dog,

cloth

plates

with

throat

plate

back

the

machine

and

set

the

front

needle

guard

the

needle

without

deflecting

it.

This

guard

readily

adjusted

loosening

the

screw

(::::

90)

top

the

throat

plate

front

the

needle

slot

and

moving

the

guard

into

position

and

retightening

the

screw.

Place

the

presser

feet

the

machine

and

check

the

vertical

movement

the

presser

bars

with

the

pressure

released

much

convenient.

The

bars

must

move

freely.

THIS FACTOR IS VITAL.

12.

The

height

the

feed

dog

correct

when

its

hightest

point

travel

the

tips

the

rear

teeth

project

32"

above

the

throat

plate.

stop

screw

provided

maintain

the

adjustment

(Figure

3).

13.

Screw

the

edge

guide

the

cloth

plate

and

abjust

that

the

edge

guide

tongue

81203KA-1)

against

the

presser

foot

stitch

tongue.

14.

Draw

the

thread

into

the

machine

and

start

operating

piece

rug

materia

Threading

diagram

(Figure

available.

Adjust

the

stitch

length

give

the

desired

number

stitches

per

inch.

This

adjus

ment

made

loosening

the

stitch

regulator

stud

nut

(::::

18A)

the

side

the

feed

rocker

(:::

80233)

(Figure

Raising

the

feed

driving

arm

(::::

80651)

shortens

the

stitch

and

lowering

engthens

the

stitch.

After

the

stitch

length

set,

the

rear

need

guard

that

barely

contac

the

needle

when

its

most

forward

position

trave

Shorten

Lengthen

stud

nut

Fig.

- 5

From the library of: Superior Sewing Machine & Supply LLC

16.

Regulate

the

pressure

the

presser

feet

that

the

springs

exert

pressure

sufficient

feed

properly

. A

comparatively

heavy

pressure

usually

required.

17.

Adjust

the

left

hand

looper

thread

take-up

(

81266K)

outward

clockwise

until

the

left

hand

looper

thread

just

tightens

the

left

hand

looper

thread

comes

off

the

right

hand

looper.

{CAUTION

LEFT

HAND

LOOPER

THREAD

SHOULD

DRAWN

FROM

THE

CONE

THIS

TIME).

All

the

left

hand

looper

thread

should

drawn

from

the

cane

the

left

hand

looper

moves

the

end

its

travel

the

right.

18.

The

needle

and

right

hand

looper

thread

tension

should

set

low

possible

yet

high

enough

give

positive

and

consistent

control

the

needle

and

right

hand

looper

thread.

The

left

hand

looper

thread

tension

should

just

high

enough

give

beaded

appearance

the

lower

thread

the

purl

edge.

19.

Make

sewing

test

single

thickness

rug

material.

satisfactory

samples

are

not

obtained,

check

the

following

thread

controls.

20.

NEEDLE

THREAD

CONTROL

I o

pull

less

needle

thread

into

the

stitch,

move

purl

down,

increase

needle

thread

tension,

raise

needle

frame

eyelet.

Most

the

needle

thread

should

drawn

from

the

cone

the

upstroke

the

needle.

21.

RIGHT

HAND

LOOPER

THREAD

CONTROL

pull

mare

right

hand

looper

thread

into

the

stitch,

move

purl

down,

reduce

the

right

hand

looper

thread

tension

move

right

hand

looper

thread

tcke-up

{eyelet

)

clockwise,

being

careful

that

the

left

hand

looper

gauge

not

changed

when

nut

{:::;:

9937)

loosened.

22.

LEFT

HAND

LOOPER

THREAD

CONTROL

The

left

hand

looper

thread

control

eyelet

(take-up)

should

adjusted

outward

clockwise

until

the

left

hand

looper

thread

just

tightens

the

left

hand

looper

thread

should

drawn

from

the

cone

the

left

hand

looper

moves

the

end

its

trave

the

right.

- 6 -

From the library of: Superior Sewing Machine & Supply LLC

376

880687

376

~~~

Rrfoi

ii,.,

80631

881201A

81239

80648

80437A

80438

880688

22574

/ 1\

,/ I \

80440

Plate

No.

I -

From the library of: Superior Sewing Machine & Supply LLC

376

420

22574

80437A

80438

80440

80631

80648

80649

880687

880688

881201

881201A

81239

Plate

No.

Set

screw

for

Hinge

pin.

Set

screw

for

Presser

bar

lifter

guide

plate

and

Looper

thread

guard.

Screw

for

Face

plate.

Lifter

lever

stud.

Screw

for

Cloth

plate.

Cloth

plate

swinging

extension

hinge

Spring

for

Locking

bolt.

Locking

bolt

knob.

presser

bar

lifter

guide

plate

Lifter

lever.

Lifter

lever

spring.

Face

plate.

Top

cover.

Cloth

plate.

Cloth

plate

swinging

extension.

Cloth

plate

swing

extension

loc

ing

bolt

••

pes.

pes

pes.

pe.

pes.

pc.

pe.

pes.

pc.

pe.

pc.

From the library of: Superior Sewing Machine & Supply LLC

80630C

80630

806300

806948

29782H

81222

80681

#...._

!4E

HA66K

88062

l H

80694C

80685

80621A

80674

2539

HA81

HA95

Plate

No.2

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