Consew 18 Manual

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CONSOLIDATED SEWING MACHINE CORP.

L INDUSTRIAL SEWING & CUTTING EQUIPMENT

OPERATING INSTRUCTIONS

and PARTS LIST

for

CONSEW MODELS 18 and 118

INDUSTRIAL SEWING MACHINES

IDA TED SEWING MACHINE

Oiling must be done at least twice daily when the machine is in continuous

operation to assure free-running and durability of the operating ports.

NOTE--During the breaking-in period a new machine should be oiled more frequently.

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Fig.

NEEDLE AND THREAD SELECTION

Consew Model

I 8

machines use standard

styles

I 6 X 63

needles for sewing

cloth and 16 X 64

for

leather

and

plastics ranging

in sizes from

14 to 25. The

thickness of the sewing thread, which must pass freely through the eye of the needle, determines the size of .the needle.

-2 -

SEniNG UP THE MACHINE

Carefully unpack machine fror:1 packing case and make						sure that all	small
ports and accessories ore removed from packing material.
Wipe machine clean of protective grease and lubricate						all oil holes	with a
good grade		of	sewing machine oil	!see	below!.
The	bed	of	the machine is made to		standard dimensions and requires a
normal	"long		arm" table cut-out,	size	19"X7-1/8"

CAPACITY AND SPEED

Consew

Model

18 is

designed

for

sewing

light and medium-weight materials

in cloth, plastics, and leather.

equipped

with

independently

adjustable

upper

and

lower

feeding

mechanisms.

consequence,

upper

and

lower

layers of materi<;~l can be fed slower or faster, as the need arises.

Maximum possible stitch length is 4 stitches per inch.

Maximum operating speed is 1400

stitches

per

minute, depending of

course

on the type of material

being sewn and its thickness.

To assure durability and troublefrce operation,

is imperative

that

for

the

first several weeks

of operation

the maxin1urn

speeJ

held

than

1000 to 1200

stitches

in order to allow the parts to oecome oropcr!y broken in.

DIRECTION OF ROTATION AND OPERATING SUGGESTIONS

operation,

the

handwheel of the machine

always turns toward the operator.

To avoid tangled threads and jamming of the sewing hook, do not

turn

hand-

wheel

otherwise.

Always

be sure

that

there is material between the

presser

feet and the

feed

dog when running the machine, particularly when

the machine

is fully threaded.

The machine will feed the material

without

your

assistance.

Therefore,

not pull the iabric

as this

rnay

cause

damage

the

needle.

OILING

not

operate

the

machine,

even

only

for

testing,

unless

it has

been

properly oiled

every

spot

requiring

lubricatio'1.

The arrows

the

follow-

ing illustration

indicate

these

spots.

•	~	•
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Remember-uneven,

knotted

rough

thread

impairs the

satisfactory sewing

performance

of your machine.

Only

left

twist

thread is to

used

for

the

needle.

test

for twist

hold

<=! length of thread between

thumbs and

index

fingers

your

hands.

Turn

thread counterclockwise.

If it

will

twist

tighter,

has

left

twist.

If it

unravels,

has a

right

twist.

The bobbin can

be wound with

either

left or

right

twist

thread.

THREADING THE NEEDLE


From		the	thread stand lead the thread	through hole A			in	the	spool	pin	on
top of		the	arm and over guide B at rear of the upper end of the face plate.
Now	run it		downward and around between		the two	tension		discs	C from		the
back,	then		over the wire guide D, and	down again		through		the	loop	of	the
check spring E, straight upward through				the	eye of the take-up lever F from						the
rear,	down		again through thread guides	G	and H and from		left to right through

the eye of the needle. Pull about two to three inches of thread through the needle's eye before you begin with sewing.

Fig. 3

REMOVING AND INSERTING THE BOBBIN CASE

Pull out slide plate, lift		latch of	bobbin	case with thumb and forefinger and
take bobbin case out	of machine.		Bobbin	will	drop out when the open end
of the bobbin case is	held	downward and		the	latch is released.
			3 -

.,...,

				Fig.	4
Take	bobbin		case by the latch after the full			bobbin	has been	·Inserted	and
place it	on	the	center stud of the shuttle.		See	that the finger of the		bobbin case
is in line with the notch on top of the shuttle race.
Release the			latch and press the bobbin case			into the	shuttle until the		latch
catches	on	the	center	stud of the shuttle. The bobbin thread				should	hang
down freely		about four		inches.

INSERTING A NEW NEEDLE

Turn	handwheel		toward	you	until needle has reached the	highest		point		of
its travel.		Loosen	the needle		set screw about one turn,	pull	out		the	old
needle	and	insert	a new	one.	Push the needle up into the needle bar as for
as it will go, setting its long					groove toward the left with	eye	of	the	needle
going	from	left to	right.	Tighten needle set screw securely.

WINDING BOBBINS

The boobin w1nder is

mounted

on the table

top

with

its

pulley

front

the driving

belt

that

the pulley will separate from the

belt

after

the

bobbin

has been wound with sufficient thread.

Push the

bobbin on bobbin winder spindle as far as it will

go.

Pass

thread

from thread stand downward through eye in tension bracket;

then between and

around the

bock

the

tension

discs.

Bring

thread forward

toward

bobbin

and wind

from

below in

clockwise direction several

times around bobbin.

Push

bobbin winder lever downward until wheel contacts

the

drive

belt

and

start

machine.

After

bobbin

is filled

with

thread,

release

will

cause

wheel

- 4 -

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disengage from belt and winding	will	stop. Cut		thread		and	remove		bobbin
from winder spindle.
Adjustment screw can be turned	in	or out to increase or decrease the amount
of thread wound on the bobbin.
When fine thread is wound on	bobbins,		use light		tension.		It	is regulated
by turning the knurled nut on the	tension		bracket	at	the	rear	of	the	bobbin
winder. Bobbin can be wound while		the	machine	is	sewing.

				THREADING			THE BOBBIN CASE
1. Hold		bobbin	case		between		thumb		and	---·----......,,
forefinger of			left	hand, so		that		the	slot
in	the	edge	of the		bobbin	case		is on top
as	shown in		Fig.	5.
									Fig.	5

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2.Take the bobbin between thumb and forefinger of right hand so that the thread on top leads

from	the left to the right, as shown in
Fig.	6.

Fig. 6

3.Insert bobbin into bobbin case, pull the thread


into	the slot			of	the	bobbin case as shown
in Fig.		6	and	then draw it under the tension
spring		and	into		the	fork-shaped opening of
the	spring		as	seen in		Fig. 7.

Fig. 7

-- 'i

ADJUSTING THE STITCH LENGTH

The	length of stitch	is changed by movement			of the knurled knob in the			slot
at front of the machine		frame (fig.	31.	Turn	this knob	counterclockwise		to
unlock	it and move it downward to		lengthen the stitch.			To obtain	a shorter
stitch,	move it in upward direction.		Lock	knob	turning it	clockwise	after	the
correct	length of stitch	has been selected.

SEWING PROCEDURE

Turn the balance wheel towards you with the right hand until the needle

moves down and up again to its highest point, thus catching the lower (bobbin)

thread. Now pull the end of the upper thread you are holding and the

bobbin thread will be brought up with it through the needle hole in the needle plate.

Place both ends of		thread back under the	presser	foot.	Place the material
to	be sewn beneath	the presser foot, lower	the foot	upon	it and then start
the	machine.

TO REMOVE THE WORK

Raise the needle bar to its	highest	point;	lift the presser	foot and draw the
fabric back and to the left.	Cut the	ends	of the threads a	few inches long
from the needle

REGULATING THE THREAD TENSIONS

For

ordinary

stitching,

the

tension on the upper and lower threads should be

equal

so as to

lock both

threads

the center

the

fabric.

If the tension on either

thread

is stronger than on the other, imperfect

stitching will be the result.

the

tension

the upper thread is greater

than that on the lower there

it will

lie straight

along

the

upper surface of the

fabric

If the tension on the

lower

thread

is greater

than

that

the upper

thread,

the lower thread

will

lie

straight along

the

underside of

the

fabric

A.Tension of the upper (Needle) thread:

Before adjusting the tension of the	upper	(needle)	thread,	be certain	that
the presser foot is let down and not	in lifted	position	Turn	serrated nut	'S"
-	6 -

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•

INDEX

ACCESSORIES ••• , ... ,. .				······		PAGE
		..... ...... ......	......	······		8
BOBBIN WINDER •········································· 2
KNEE LIFTER	................................................					J/7
PRESSER FOOT AND UPPER FEED DOG				.. ..	.. .. ·.. · 7
PARTS FOR	WIPER	SEAM .. ·......	··....	·......	· ··..	7
Tne	word C	stem ped at the side of			ports
No.	means	a complete set	of	the	porto,

MODEL 18

		•
on	tension	device to the right to increase tension and to the left, if you desire
to	decrease	it.

B.Tension of the lower (Bobbin) thread:

Once the tension of the lower		!bobbin) thread			has been	adjusted correctly,
it is rarely necessary to adjust	it	ever	again. However,			it	if should	ever
require regulation, do so by carefully turning the					single screw		located at	the
outside of the bobbin case shell		on top	of	the	tongue-shaped curved spring .
Turn this screw clockwise no more than			1/4	turn	at one time to tighten tension
and counterclockwise to loosen	it.

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THE UPPER FEEDING MECHANISM

For normal		sewing operation the upper feeding
mechanism is odju3ted to work						in	synchronism				with
the feed	dog	in	the bed		of	the		machine.			By
loosening	set	screw		"N"	(fig.		8)	and		turning
thumb screw		" P"		clockwise		the		top	Ioyer		of
material	con	be	fed	foster.		Turning			the	thumb
screw "P" cou'1ter clockwise					will		feed

fig.

- 7 -

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