Global LP 9974-C Manuale utente

I .

I ,

GLGBAL

PARTS

BOOK

INSTRUCTION

BOOK

M08El:::

9971-C •

LP9974-C

LP 9971 -C I LP 9974 -C

Thank

you

choose

.9971-C 9974-C

Post-bed

compound

feed

lockstitcl"

sewing machine

with

roller.

This

instruction

book

parts

list.it

could

help

you

how

use

machine

how

to care ofmachinecorrectly and

make

you

convnience

look

parts.

order

avoid troubleoccurring, please

read

this

instruction

book

carefully

before operating machine, and please accept

safety

operating guides

which

come

from

special technicianes

peoples of

having

operatorexperiences.

BRIEF

INTRODUCTION

MACHINE

9971-C{Single heedle)/9974-C (Double needle) Post-bed compound

feed

with roller

clockstltch

sewing

machineisa

high-grade

product

Post-bed

sewing

machine. It's

surface

beautiful

and

it'sstitch could

adjusted

freely.

before

you

adjusting

it,

the

stitch could keepnotchanging. Maintenance-free

ball

& needle

bearing, it

works

smoothly.

Owing

the

combination of wheel

feed

and

driven

rollerpresser; it'sclimbing capacity isvery

good.

itisspecial suitable for

sewing

high-grade leather

shoes,

bags &gloves etc.arcleatherproducts.

-1-

MAIN

SPECIFICATIONS

Max.Sewing

Speed:

2500 needle/min.

B. ScopeofNeedle StitchAdjusted: 1.3-7mm.

Presser Foot Lift:

7mm.

Needle

Travel:

mm.

Needle

System:

x 5. 11#-20#.

Hook

Assy.

Type:

Vertical Hook

Assy.

Sewing

Capacity:

6mm

Lubrication

Way:

Lubricating

Hand.

I. Motor: 370w(Clutch MotorSpecial

Used

For

Sewing

Machine).

CAREFUL

Before

the

machine

leaving

factory,

had

ready

been

checked

carefully

but

long-distance

transport,

may

vibrated

strongly

and

then

the

parts

loosen

wound

before

installing &

using

the

machine

you

must

check

carefully

when

you

ascertained

that

there

trouble

for

rotating

colliding

unregular

res

stance

and

unnormal

sound,

you

could

trying

it.

Hook

assy

feed

wheel

thread

tension

regulator

assy

etc.

parts

the

machine

easily

accumulated

dust,

and

this

would

affect

sewing

capacity.

you

must

often

clean

it.

After

you

cleaned

the

machine

please

oil

all

the

position

need

lubricating

use

sewing-machine

il.

0. If

sewing

material

and

thread

was

changed

the

vulnerab

parts

was

replaced.

the

clearance

machine

may

needed

adjusting,

this

time,

you

had

better

adjust it

through

special

technicianse

peoples

having

operator

experience.

INSTALLATION

NEEDLE(ORAWING

1 )

Please

use

x 5, 11#-20#

needle,

the

thickness

needle

should

decided

according

the

thickness of

sewing

material

&thread.

When

you installing

needle,

the

needle's

long slot

should

face

theoperator's left

side,

then

put

the

needle

shank

into

needle

hole,

and

take

the

bottom of

needle

hole,

then

tighten

the

clamping

screw.

-2-

•

THE

METHOD

PUTTING BOBBIN & BOBBIN

CASE

HOOK

ASSV.

(Drawing

Open

post

cap

assy~A).

Lift

bobbin

lever(B).

Lead

bobbin

thread

out about

50mm,

then putthe

end

of thread

slot

bobbin

case.

Putthe

bobbin

case

with bobbin

hook

assy.

Put

down

bobbin

lever(B).

Leading

needle

thread

left

hand,

rotating driving

wheel

right

hand,

wh~n

the

bobbin

thread

pulled

out,

then

put

the

bobbin thread

side.

Closed

the

post

cap

assy(A).

THE

WAY

THREADING. (Drawing

VVhen

threading the needle

thread,

the

needle bar

should

the position

highest

point. liftup presser

feet,

open

the

roller presser assy(pull itdown,

then

push

italong

with

the

direction

arrow).

then

lead

the

end

thread

from

spool &

threading

order.

A Leading thread through two holes of4 hole thread retainer(1

Leading thread from right to leftthrough the right threading hole

tensioning

adjusting-plate, then leading it

and clamping itbetween small tension discs(2).

Go round dividing thread pin downward, pass through tension discs(3).

Go round thread tension plate assy(4) from right

left.

Leading thread up and passthrough upperthread guide(5), then passthrough

the hole

thread take upleverfrom right to left.

Downwardthrough middlethread guide(6),underthread guide(7) &needle bar·s

hole(B

passthrough the hole

needle(9), and leading thread outabout 1

OOmm

forusing.

-3-

7. ADJUSTING OFTHREAD TENSION (Drawing

The

normal

stitch

this

sewing

machine

should

same

drawing

showing.

the

stitch

unnormal,

may

appear

thread

breaking

sewing

material

wrinkling

etc.

this

time,

you

should

adjust

the

tension

needle

thread

bobbin

thread

until

the

stitch

good.

A If

the

stitch

is as same

drawing B

showing,

means

thatthe

tension

ofneedle

thread

too

high

the

tension

bobbin

thread

too

low.

You

should

turn

tension

nut

clockwiseso thatreduce

the

pressure ofneedle thread. Ortighten the adjusting

-screw(B}

using

small

screwdriver

increase

the

tension

bobbin

thread.

Showing

drawing

the

tension

needle

thread

too

sman

the

tension

bobbin

thread

too

big.

You

should

tum

tension

nut

clockwise

increase

the

pressure

needle

thread.

loosen

the

adjusting-screw(B)

using

small

screwdriver

reduce

the

tension

bobbin

thread.

REGULATING

THE

PRESSURE

PRESSER

FEET

(Drawing7)

The pressure ofpresser feet should

regulated

according

the thickness ofsewing

material. If

the

sewing

material

thicker,

the

pressure

presser feet should

increased,

this

time

,you

may

turn

round

regu

lating-screw on

the

back of head

clockwise

drawing showing.

contrary,reduce

the

pressure.

-4-

REGULATING

STITCH

LENGTH

!Drawing

Press

down the stitch length regulating-button

(8)

using forefinger

left

hand.

B. Turn round the pulley blancewheel(A) slowly by right hand.

When

the

stitch length regulating-button(B) was pressed down, you may

regulate

the

stitch length.

The

figure

stitch length is shown on

the

pulley blance wheel(A),

the

figure is more bigger then the stitch length is more bigger. Turning round

the

pulley blance wheel(A} until

the

figure

stitch length

you

need aim

datum

point(C), then loosen the stitch Length regulating-button(B) and it return

back

the

the original position. Then the stitch length is regulated good.

...

'· "

. -

--.--:.:

----J----'L

•

10.

REGULATING

THE

GAP

BETWEEN

HOOKASSY AND

NEEDLE

!Drawing

.We suggest that the gapbetween hookassy and needle should be regulated

by special technicianes

peoples having operating experiences.

A Turning round the pulleyblance wheel by hand, when

the

needlego up

2mm

from the lowestposition, the position

needle hole should be lower1.6mmthan

hooktop.

B. Turning round the pulleyblance wheel by hand, when

the

needle

2mm

from thelowestposition, hooktop should aim atneedle slotand the gap is0.05mm.

TROUBLE,

CAUSE

REMEDY

Trouble

Thred

Breaking

Cause

)The quality

thread is pool.

(2)Caused

needle

Needle curving

Needle installing wrong

Needle

too small(compared

with thread)

(3)The tension

needle thread ls too big.

Stitch

)Reasons caused by

needle

Dropping Needle curving

7'~

Thread

Floating

Needle not

fit

the

thickness

thread.

(2)Reasons caused by

wrongly

installing

needle

When inserting needle, the depth

notenough.

When inserting needle, the needle

inclined.

)Tension

needle

thread

too small

(2)Take-up

spring

is too loosen.

(3)Tension

bobbin

thread

is too

big.

-5-

Remedy

Replace thread which is very

good.if

the thickness

thread

is noteven

there is some

joint

in thread, do

not

use it.

Replace a new needle.

Re-installing needle.

Replace a needle which

fit

the thickness

thread.

Looseingthreading nut.

Replace needle.

Replace a needle which

fit

the thickness of thread.

Insert needle to the fixed-position plane ofneedle bar.

Re-installing needle.

Turn round tension adjusting nut colockwise to regulate needle

thread.

Adjusting the tension oftake-up spring. when sewing thicker

material(stitch length

long}, the tension

take-up spring

should be increased.

Tighten the spring plate screw

hook

case.

•

Model

INDEX

Page

ARM BED AND IT'S ACCESSORIES

- -

------------------------

1 - 2

B. UPPER THREAD TENSION REGULATOR MECHANISM

-------------

3 - 4

C. SINGLE-DIRECTION BEARING SHAFT MECHANISM

-------

------

5- 6

ROLLER PRESSER FOOT MECHANISM

-----

-------------------

7 - 8

TAKE-UP LEVER MECHANISM

-----

----

-----

-----------

9 -10

F. UPPER SHAFT AND BALANCE WHEEL MECHANISM

---------

----

11-12

G UPPER SIDE SHAFT MECHANISM

-------

--------

------

13-14

H NEEDLE BAR MECHANISM

---------------------

---------

----

15-16

L NEEDLE BAR ROCKING MECHANISM

---

---------

----------

17-18

PRESSER FOOT BAR MECHANISM

----

- - - - -

---------------

19-20

K TIMING BELT DRIVING MECHANISM

---

----

---

----

- -

------

-21-22

STITCH REGULATOR MECHANISM

-----

---

------------------

23-24

M FEED SHAFT MECHANISM -

-------

---

--------

- -

--------------

25-26

N CLUTCH SET MECHANISM

------------

----------------------

27-28

0 CENTRAL BRACKET MECHANISM -

- -

------------------

29-32

LEFT

SIDE BRACKET AND CENTRAL BRACKET MECHANISM

------

33-34

LEFT

SIDE BRACKET MECHANISM

----------------------------

35-38

R FEED WHEEL SINGLE-DIRECTION DRIVING MECHANISM

----

- - -

39-40

RIGHT

SIDE BRACKET MECHANISM

---------------------------

41-44

T ACCESSORIES

----------

----

---

- -

---

------

---

------

GAUGE

PARTS LIST

-----

----------

-----------------------

V NUMERICALPARTS-LIST

------------------

-----------------

50-53

ZM805007

J-i-365-0A

ZMB06002_j

ARM

BED

AND

IT'S ACCESSORIES

ZMC05001---cl!IO:)

J1063-0A---,~~

J1077-0A

ZMB06002

.b-J1052-0A

~ZMB0~003

~A1055-0A

ZMB04011

-1-

J1051-0A TI012-0A

~1041-0A

LzMao4011

J4.360-0A

ZMB05004

Part No.

1055-0A

J1041-0A

J1051-0A

1052-0A

1063-0A

J1077-0A

J4360-0A

J4365-0A

T1010-0A

T1012-0A

T3030-0A

ZMB04011

ZMB04017

ZM805003

ZMB05004

ZMB05007

ZMB05010

ZMB06002

ZMC05001

ZMH04001

ARM BED AND IT'S ACCESSORIES

Name

Part

9971-C 9974-C

Thread

Guide

Wire

---

---------

------

Stopper

---------

---

----

------------

Hole

Thread

Retainer

----

-1

Thread

Guide

Wire

-------

-------------

Thread Take-up

Cover

---------

----

- 1

Needle

Bar

Upper

Bushing Cap

-----------

---------

---

-Bottom

Cover

-----------------------

Bracket

---------------------

--------

Face Plate

---------------------------

Arm

Side

Cover

----

------------------

Arm

Side

Cover

----------------

----

---

Screw

(M4X0.7X8)

--------------------

Screw

(M4x

X7)

------------------

Screw

(M5X

--------------------

Screw

(M5X0.8X

10)

-----

- -

---

------

Screw

(M5X0.8X25)

-----

----

---

-1

Screw

(M5X0.8X35)

-------------------

Screw

(M6X

1.0X

10)

---

-----------

Screw

(M5X

a.ax8)

--------------------

Screw

(M4X0.7X4)

------------

------

-2-

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