Industrial sewing machines
Singer 144w204, 144w304 — User manual
User manual for Singer 144w204, 144w304. 28 pages in English. Read the original PDF, download or print a copy without registration.
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- Brand
- Singer
- Model / document
- Singer 144w204, 144w304
- Document type
- User manual
- Language
- English
- Pages
- 28
- File size
- 11.4 MB
- Category
- Industrial sewing machines
- Document date
- Not specified in catalog
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Page 1 · Read text
Form 2903w
Rev.(451)
73
INSTRUCTIONS
FOR USING AND ADJUSTING
SINGER
SEWING MACHINES /442B02.
144w204 AND 144w304
e aesr -62 0
EWING
KACHIN
THE SINGER MANUFACTURING COMPANY
Printed in U. S.AView original page 1Page 2 · Read text
USE SINGER OILS
and LUBRICANTS
They insure freedom from lubricating trouble and give
longer life to sewing equipment
The following are the correct lubricants for this machine:
TYPE B-MANUFACTURINGMACHINE OIL, HEAVY GRADE
When an oil is, desired which will produce a minimum of
stain on fabrics, even after a long period of storage, use:
TYPE D–MANUFACTURING MACHINE OIL, HEAVY GRADE
OTHER SINGER LUBRICANTS
TYPE E-THREAD LUBRICANT
For lubricating the needle thread of sewing machines for
stitching fabrics or leather where a thread lubricant is
required.
TYPEF- MOTOROIL
For oil lubricated motors and plain bearings in power
tables and transmitte rs.
NOTE: All of the above oils are available in 1 quart,
1 gallon and 5 gallon cans.
GEAR LUBRICANT
This specially prepared grease is recommended for gear
lubrication on manufacturing sewing machines.
BALL BEARING LUBRICANT
This pure grease is specially designed for the lubrication
of ball bearings and 'ball thrust bearings of motors and
electric transmitters, ball bearing hangers of power tables,
etc. Furnished in 1 lb, and 4 lb.tins.
1View original page 2Page 4 · Read text
TO ALL WHOM IT MAY CONCERN:
The improper placing or renewal of the Trade Mark "SINGER"r
any other of the Trade Marks of The Singer Manufacturing Company
(all of which are duly Registered Trade Marks) on any machine that
has been repaired,rebuilt, reconditioned,or altered in any way whatsoever
outside a SINGER factory or an authorized SINGER agency is forbidden.
THE IMPORTANCE OF
USING SINGER* PARTS AND NEEDLES
IN SINGER MACHINEs
The successful operation of SINGER machines can only be assured
if SINGER parts and needles are used. Supplies are available at all
SINGER Shops for the Manufacturing Trade, and mail orders will receive
prompt attention.
SINGER Needles should be used
in SINGER Machines.
These Needles and their Containers
are marked with the
Company's Trade Mark "SIMANCO,*" 1
Needles in Containers marked
"FOR SINGER MACHINES"
are NOT SINGER made needles. 2
Copyright, U, S. A., 1914, 1924, 1934, 1935, 1936, 1937, 1940 and 1945,
by The Singer Manufacturing Company
All Rights Reserved for al| CountriesView original page 4Page 5 · Read text
3
DESCRIPTION
MACHINE 144w204 is a single needle lock stitch machine with com
pound feed and high-lift alternating pressers for automobile work, tents,
furniture upholstery, etc. Ithos a bolt-driven r tory sewing hook ownings, on a vertical axis and a high arm with a working space of 20 inches at the
right of the needle bar. The balance wheel has a 64 inch diameter belt
Presser foot lift Ye inch. groove. Maximum length of stitch 2½ to the inch.
MACHINE 144w304 is a long-arm machine with working space of 30
inches at the right of the needle bar and is Used for stitching on automobile
is the same door panels and for similar large work. Otherwise the machine
as Machine 144w204.
SPEED
is 1500 revo The maximum speed recommended for these machines
lutions per minute, when permitted by the nature of the material being
sewn. The machines should be run slower than the maximum speed
until the ports which are in movable contact have become glazed by their
in operation,the balance action on each other. When the machines are
wheel should turn over toward the operator.
WeepLe s 7X3- 27
NEEDLES
#/2/00 foR Needles for Machines of Class 144w are of Class and Variety 7x3,made
in sizes 21, 22,23, 24, 25,26 and 27, forcloth and7x19 made in sizes 22, 23,
24,25 and 27 for stitching cardboard and fibre door panels.
The size of the needle to be used should be determined by the size
of the thread, which must pass freely through the eye of the needle. If
rough or uneven thread is used, or if it passes with difficulty through the eye
of the needle, the sUccessful use of the machine will be interfered with.
Orders for needles must specify the quantity required, the size number,
also the class and variety numbers separated by the letter X.
The following is an example of an intelligible order:
"100 No. 24, 7x3 Needles.'"
The best results will be obtained when using the needles sold by
Singer Sewing Machine Company.View original page 5Page 7 · Read text
5
Loosen the thumb screw in the upper end of the face plote, turn the
face plate upward and oil the wick and bearings which are thus uncovered,
then turn down the face plate and tighten the thumb screw.
Fig. 4. End View of Machine Showing Oiling Points
Also Adiustments on the Machine
Apply a few drops of oil four times daily to the felt pad in the side wall
of the bobbin case as illustrated in Fig 10.
E20815
Fig. 5. Base of Machine Showing Oiling PointsView original page 7Page 8 · Read text
3/0- 24- 3
THREAD RIE .0
Use left twist thread for the needle. Either left or right twist thread
may be Used for the bobbin,
Fig. 6. How to Determine the Twist
Hold the thread as shown above. Turn the thread over toward you
between the thumb and forefinger of the right hand; if left twist, the strands
will wind tighter; if right twist, the strands will unwind.
TOSET THE NEEDLE
Turn the balance wheel over toward you until the needle bar moves
up to its highest point; loosen the set screw in the needle bar and put the
needle up into the bar as far as it will go, with its long groove toward the
left, the eye of the needle being directly in line with the machine bed, then
tighten the set screw.
TO REMOVE THE BOBBIN
Draw back the slide plate in the bed of the machine and turn the
balance wheel until the bobbin case opener (M, Fig. 7) moves clear of the
bobbin. With the forefinger or a screwdriver,raise the latch ()to a ver
tical position and lift out the bobbin.
El2376 M
Fig. 7. Removing the BobbinView original page 8Page 9 · Read text
7
TO WIND THE BOBBIN ON MACHINE 144w204
(See Fig. 8)
Fasten the bobbin winder to the table with its driving pulley in front
of the machine belt, so that the pulley willdrop away from the belt when
sufficient thread has been wound upon the bobbin.
2
B
EI528
Fig. 8. Winding the Bobbin
Place the bobbin on the bobbin winder spindle and push it on as far
as it will go, being sure that stud (C) enters a hole in the bobbin.
the tension bracket, Pass the thread down through the thread guide()in
around the back and betwe en the tension discs (2). Then wind the end
of the thread around the bobbin a few times, push the bobbin winder pulley
over againstthe machine belt and start the machine.
When sufficient thread has been wound upon the bobbin, the bobbin
winder will stop automatically.
If the thread does not wind evenly on the bobbin, loosen the screw (4)
in the tension bracket and move the bracket to the right or left as may
be required, then tighten the screw.
The amount of thread wound on the bobbin is regulated by the scr
(B). To wind more thread on the bobbin, turn the screw (B) inw
To wind less thread on .the bobbin, turn the screw outwardly.
Bobbins can be wound while the machine is stitching.View original page 9Page 10 · Read text
TO WIND THE BOBBIN ON MACHINE 144w304
(See Fig. 9)
Place the bobbin on the bobbin winder spindle and push it up against
the shoulder until it is in line with the bobbin winder latch.
2
Fig. 9. Winding the Bobbin
Pass the thread from the unwinder, under and between the tension
discs (1), through the eyelet (2), and wind the end of the thread around
bobbin (3) a few times. Push the bobbin winder pulley against the
fficient balance wheel and press the latch against the bobbin. When su
thread has been wound on the bobbin, the bobbin winder will stop auto
Bobbins can be wound while the machine is stitching.View original page 10Page 11 · Read text
TO REPLACE THE BOBBIN
AND THREAD THE BOBBIN CASE
Hold the bobbin between the thumb and forefinger of the right hand,
the thread drawing on the bottom from left to right as shown in Fig. 10, and
EI5382
Fig. 10. Direction of Thread on Bobbin
place it on the center stud of the bobbin case, then push down the latch
(L Fig. 11). Draw the thread into the slot (1, Fig. 10), under the tension
spring and into slot (2)as shown in Figs. 10 and 11, leaving a loose end of
thread about two inches long above the slide. When closing the slide
plate, leave just enough space for the thread to pass through.
L
Fig. 11. Bobbin Case ThreadedView original page 11Page 12 · Read text
10
THREADING THE NEEDLE
(See Fig. 12)
in the Pass the thread from the unwinder through one of the holes (1)
thread oiler, and under the wire guide (2)(which may be raised by prying
127 5
AND
13
14 EI7315
1 3 2
4
5
J6 9 8
I7.
X
Fig. 12
the end (X)out of its position hole with a screwdriver and turning it to the
right), then under the oil pad (3) and out through one of the notches (4)
in the thread oiler; downward to the thread guide, up through the eyelet
(5), down through the eyelet (6), over between the tension discs (7), down
around the thread controller (8) and into the thread controller thread
guide (9), ínto the thread take-up spriíng (10), up through the guide (U),
from right to left through the hole (12) in the take-up lever, down through
the guide (13), into the thread guide (14) (used only for thread smaller than
No.12), back of the lower guide (15), into the self-threading needle bar
thread guide (16)and from left to right through the eye (17)of the needle.View original page 12Page 13 · Read text
TO RAISE OR LOWER THE PRESSER FEET
The presser feet are raised by pressure on the foottreadle and may
be locked in the raised position by moving the lever (D,Fig. 2) all the way
to the left. A slight pressure on the treadle will automatically release
the locking device.
TO PREPARE FOR SEWING
With the left hand hold the end of the needle thread, leaving it slack
from the hond to the needle. Turn the balance wheel over toward yoU
EI2182
Fig. 13. Pulling Up the Bobbin Thread
until the needle moves down and up again to its highest point, thus catching
the bobbin thread; draw up the needle thread and the bobbin thread will
come up with it through the hole inthe feed dog. lay the threads back
under the presser feet and close the slide.
TO COMMENCE SEWING
Place the material beneath the presser feet, lower the presser feet
and commence to sew, turning the balance wheelover toward you.View original page 13Page 14 · Read text
12
TO REMOVE THE WORK
Have the thread take-up lever at the highest point, raise the presser
feet, draw the work back and cut the threads close to the goods. Lay the
ends of the threads back under the presser feet.
TO REGULATE THE LENGTH OF STITCH
To change the length of stitch, two adjustments are necessary-one
tor the forward and backward movements of the needle and one for the
travel of the feed dog. THESE ADJUSTMENTS MUST BE MADE AT THE
SAME TIME.
The forward ond backward movements of the needle are regulated
by means of the knurled plunger (J, Fig. 14) in the arm. The travel of the
feed dog is regulated by means of the right hand button (K, Fig. 14) in
the bed.
K V
EI71|
Fig. 14. Adjustments for Changing length of StitchView original page 14Page 15 · Read text
13
The plunger (J, Fig. 14) and the button (K, Fig. 14) must both be FULLY
DEPRESSED when changing the length of stitch. NEVER TURN THE
BALANCEWHEEL WHEN ONE OF THESE PLUNGERS IS DEPRESSED WHILE
THE OTHER IS OUT, FOR, TO DO SO WOULD CHANGE THE TIMING
BETWEEN THE NEEDIE AND THE FEED DOG.
Tochange the length of stitch, press in the knurled plunger (J) and at
the some time slowly turn the balance wheel toward you by hand until the
lunger ()enters the odjustoble eccentric on the arm shaft, then turn the
plunger turn to the right or left to lock it in position.
Now, depress ond continue to-hold down the button (K) in the bed,
making certain that it has entered the notch in the feed driving eccentric.
A very slight movement of the balance wheel forward or backward may
be necessary to allow the button to drop into the notch. The stitch length.
con now be changed by turning the balance wheel over toward you to
increase the stitch length or away from you to shorten the stitch. When
the desired stitch length adjustment has been made, release he button
(K)in the bed and before starting the machine, turn the plunger ()in the
arm until it springs outwardly, thus releasing the adiustable eccentric in
the arm.
When the foregoing instructions have been followed and it is desired
to change the stitch length again, it may occur that, after locking the plunger
(0) in the arm, the button(K)cannot be pressed directly into the notch in the
feed driving eccentric, depending on the direction in which the balance
wheel was turned to make the previouUs adjustment. To overcome this
in the arm first, then while pressing thedificulty, lock the plunger ()
button (K)in the bed, turn the balance wheel backward and forward until
the button (K) drops into the notch.
CAUTION
NEVER change the forward and backward movements of the needle
without also changing the travel of the feed dog.
BEFORE COPERATING THE MACHINE, the plungers (0) and (K) must be
disengaged from the eccentrics in the arm and bed.View original page 15Page 16 · Read text
14
TENSIONS
The needle ond bobbin threads should be locked in the center f the
thickness of the material, thus:
E154
Fig. 15. Perfect Stitch
Ifthe tension on the needle thread is too tight,or if that on the bobbin
thread is too loose, the needle thread will lie straight along the upper
surface of the material, thus:
EW31
Fig. 16. Tight Needle Thread Tension
If the tension on the bobbin thread is too tight, or if that on the needle
thread is too loose, the bobbin thread will lie straight along the under
side of the material, thus:
Fig 17. loose Needle Thread Tension
TO REGULATE THE TENSIONS
The tension on the needle thread is regulated by the thumb nut (Q,
Fig. 18) at the front of the tension discs on the front of the machine. To
increase the tension, turn this thumb nut over to the right. To decrease
the tension, turn this thumb nut over to the left.
The tension on the bobbin thread is regulated by means of the screw
nearest the center of the tension spring on the outside of the bobbin case.
To increase the tension, turn this screw over to the right. To decrease
the tension, turn this screw over to the left.
TOREGULATE THE PRESSURE ON MATERIAL
To increase the pressure of the presser feet on the material, turn the
To thumb screw (H, Fig. 14), at the back of the machine, downward.
decrease the pressure, turn this thumb screw upward.
The pressure on the material should be sufficient to enable the feed
to move the work along evenly.View original page 16Page 17 · Read text
15
INSTRUCTIONS
FOR
ADJUSTERS AND MACHINISTS
THREAD CONTROLLER
The thread controller spring should be set so that it reaches its lowest
in its descent.point as the eye of the needle nearly reaches the goods
P
EI5260 N
Fig. 18. Adjustment of Thread Contro!ler
For more controller action on the thread, loosen the stop screw (0.
Fig. 18) at the right of the controller and set the stop lower, and for less
action set the stop higher.
To strengthen the action of the controller spring on the thread, loosen
the spring stud screw (P,Fig. 18) at the rear of the stop screw and turn the
spring stud (N, Fig. 18) slightly to the left with a screwdriver,or to lighten
its action turn to the right and retighten the spring stud screw.View original page 17Page 18 · Read text
16
TO SET THE NEEDLE BAR
See that the needle is up in the bar as far as it willgo. There are wo
lines across the needle bar about two inches above the lower end. When
the needle bar is at its lowest position, the upper mark should be iust
visible ot the end of the needle bar frame.
In case the needle bar is not correctly set, loosen the needle bar
connecting stud pinch screws at (G, ig. 4) and place the needle bar in
corect position as directed above, then retighten the screws (G).
TO SET A NEEDLE BAR WHICH HAS NO MARK
Adjust the feeding mechanism as instructed on page 13 so that there
is no feed movement of the needle bar, then set the needle bar so that
when it rises V% inch from its lowest position, the point of the sewing
hook will be about 1/16 inch above the eye of the needle.
TO ADJUST FEED DOG
The feed dog should be set so that the needle is centered in the
needle hole. In case the needle does not enter the hole in the feed dog
correctly, loosen the pinch screw (L2, Fig. 26) and adjust the feed dog as
required, then securely tighten the pinch screw (L2).
RELATIVE POSITIONS OF VIBRATING PRESSER BAR
AND LIFTING PRESSER BAR
The distance between the vibrating presser bar and lifting presser bar,
after adjusting the feed mechanism so that there is no feed movement of the
inch as shown in Fig. 4.needle bar, should be %
EI7323
Fig. 19View original page 18Page 19 · Read text
17
f the distance between the vibrating presser bar and the lifting presser
bgr is more or less than 8 inch, see that the feeding mechanism is set
SO thot there is no feeding movement of the needle bar, then remove the
cover at the front of the machine, loosen the clamp screw (Y, Fig. 19) which
holds the needle bar rock frame rock shaft and move the needle bar frame
forward or backward to the required distance. A piece of metal of the
correct width may be Used to determine the correct distance. When the
gdjustment has been made, securely tighten the clamp screw (Y), replace
the cover plate and restore the feeding mechanism to its original position.
TO CHANGE THE AMOUNT OF LIFT OF
THE ALTERNATING PRESSERS
The height of lift of the pressers is adjustable by moving the link (F,
Fig. 4) to any of thefour holes in the rock shaft crank. The maximum lift
is secured with the link in the bottom hole. The amount of lift should
be regulated according to the thickness of the material being sewn. The
feet should lift just high enough to clear the material.
TO ADJUST THE RELATIVE HEIGHT OF LIFT
OF THE VIBRATING AND LIFTING PRESSERS
As a rule, the vibrating and lifting pressers should lift an equal height,
but some grades of work may require that they lift an unequal height. To
change the relative lift of the presser feet, loosen the screw (E, Fig. 3) at
the back of the machine and move the vibrating presser bar upward or
downward as required, then securelytighten the screw (E).
TO TIME THE SEWING HOOK
Set the feed mechanism so that there is no feedingmotion.
Remove the throat plate and turn the balance wheel over toward yoU
until the lower mark across the needle bar is just visible at the end of the
needle bar frame on the upward stroke of the needle bar. Ifthe needle
bar and sewing hook are correctly timed, the point of the hook will be
at the center of the needle and about 1/16 inch above the eye.
In case the sewing hook is not correctly timed, turn the balance wheel
over toward you until the needle bar has descended to its lowest point and
has risen until the lower timing mark across the needle bar is just visible at
the end of the needle bar frame.
Loosen the two screws in the hub of the hook driving gear (T, Fig. 20)
and tap this gear to the right or left on the hook driving shaft until the point
of the hook is at the center of the needle. Tapping to the right gives an
earlier hook timing, and to the left a later hook timing. Securely tighten
the two set screws in the gear ().View original page 19Page 20 · Read text
18
TO SET THE SEWING HOOK TO OR FROM THE NEEDIE
Toprevent the point of the hook from dividing the strands of the thramd scarf)as possible. it should run as close to the needle (within the
S EI7316
Fig. 20. Adjustment of Hook Saddle
Turn the balance wheel over toward you until the point of the sewing
hook is at the center of the needle. Loosen the two screws (R, Fig. 20)
holding the hook saddle underneath the bed of the machine and move
the hook saddle to the right or leit, as may be required, until the point
of the hook is as close to the needle as possible without striking it, then
securelytighten the two screws (R).
is attached to the side of the The needle guard (Y, Fig. 22), which
it prevents the needle from striking thesewing hook, should be sprung until
hook in case the needle is deflected towards the hook.
W
X
EI2184
Fig. 21. Removing Bobbin CaseView original page 20Page 21 · Read text
19
TO REMOVE THE BOBBIN CASEFROM THE SEWING HOOK
Remove the bobbin case opener (M, Fig. 21); remove the four hook
lift of the hook gib (Z, Fig.gib screws (W,Fig. 21) from the sewing hook,
22)and remove the bobbin case (X, Fig. 21).
TO REMOVETHE SEWING HOOK FROM THE MACHINE
Remove the throat plate, feed dog and the bobbin case opener.
Loosen the fwo screws in the hook shaft gear (S, Fig. 20) and lift out the
sewing hook.
E15266
Fig. 22. Sewing Hook Removed from Machine
Showing Hook Gib and Needle Guard
TO RAISE OR LOWER:THE FEED DOG
its highest position, it should show a Usually when the feed dog is at
full tooth above the throat plate.
Remove the throat plate; clean the lint and dust from between the
feed points and replgce the throat plate; tip the machine back and turn
is at its highest position; the balance wheeltowards you until the feed dog
in the feed liftingcam fork on the feed bar and raise loosen screw (U,Fig. 20)
or lower the feed dog, as may be required, and retighten the screw (U).
its underside When raising or lowering the feed dog, be careful that
does not drop low enough to strike the sewing hook.View original page 21Page 22 · Read text
20
IO REMOVE THE NEEDLE BAR ROCK FRAME ROCK SHAFT
Remove the face plate and needle bar rock frame, then loosen the
clamp screw at (Y,Fig. l9) and draw out the rock shaft and remove ke
sleeve.
THE FEED ECCENTRIC
The feed eccentric is provided with a gib (B2, Fig. 23) which can be
adjusted to take up any wear or loose motion between the feed eccentric
and the eccentric body. To adjust the gib, loosen the two locking screws
(C2, Fig. 23) nearest the gib, then turn in the two adjusting screws (A2)
against the gib until all play is eliminated and the eccentric fits snualy
in the slot in the eccentric body. Securely tighten the two locking
screws (C2).
EI7316 A2 B2 C2 D2 E2
Fig. 23
The spring (D2, Fig..23) presses against the feed eccentric cam to
prevent it from moving out of position white the machine is operating.
The collar (E2) should be set flush with the end of the hub of the eccentric
body and the set screw in the collar should enter the hole in the hub of
the eccentric body.View original page 22Related documents and language editions
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From the ISMACS International. Original publisher and archive notices are retained.
Check the model and edition against your equipment.
PDF verified 2026-10-11.