Consew 223 User manual

OPERATING INSTRUCTIONS
FOR
MODELS
223, 223R
227, 227R
227B, 227BR
CONSOLIDATED SEWING MACHINE
A U.S.INDU»rfllB« CyMl^ANV.
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SPECIFICATIONS
SPEED :Maximum 3000 r.p.m.
(With reverse stitch mechanism or
with synchronized binder 2800 r.p.m.)
NEEDLE: 135x17
HOOK :Rotating hook
STITCH LENGTH : Maximum 5 mm
SIZE OF BED: 65^/>x269mm
MOTOR: 250W, 2P, clutch motor
DIAMETER OF MOTOR PULLEY : 50 cycle 70 mm
60 cycle 60.mm
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CONTENTS
Setting up the machine 2
Speed 3
Oiling 3
Needle and thread 6
Inserting and removing the bobbin 6
Winding bobbins 8
Threading the machine 9
Regulating the thread tension 10
Regulating the pressure on goods 11
Adjusting the stitch length 11
Adjusting the lift of
the alternating presser feet 12
How to re-set the safety clutch mechanism 12
INFORMATION FOR ADJUSTMENT
Replacement of the timing belt 13
Adjusting the height of the feed dog 14
Adjusting the timing of the needle plate, needle and feeder 14
Adjusting the height of the needle bar 15
Timing between the needle and hook 15
Relative position between bobbin case and opener 16
Adjusting the height of the presser feet 16
Timing of the vibrating presser foot 17
Adjusting the thread controller spring 17
Instructions for 227B or 227BR only 18
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SETTING UP THE MACHINE
Before setting up the machine on the table, attach the relative parts to
the table.
1. Motor
4. Pedal
7. Machine base
10. V shape belt
2. Stand 3. Treadle
5. Machine rest pin 6. Cotton stand
8. Head 9. Chain
11. Bobbin winder
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SPEED
Maximum operating speed after a break-in period is 3000 stitches per minute
depending, of course, on the type of material being sewn, its thickness and
that of seams being crossed. (In case of the machine with reverse lever or
synchronized binder 2800 r.p.m.)
To assure durability and trouble-free operation, it is recommended that for
the first several weeks of operation the maximum speed is held to not more
than 2400 RPM in order to allow the parts to become properly broken in.
in operation the hand wheel of the machine always turn toward the
operator.
OILING
Do not operate the machine, even if only for testing, unless it has been
properly oiled at every spot requiring lubrication.
The arrows on the Figs. 2, 3, 4 and 5indicate these spots.
Oiling must be done at least twice daily when the machine is in continuous
operation to assure free running and durability of the operating parts.
The hook mechanism should receive careful attention when lubricating the
machine.
The oil well beneath the hook should be filled with oil and the felt pad
in the same should be soaked with oil. in case of a new machine, oil pad
every time a new bobbin is inserted.
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NEEDLE
The machine is set up to use 135x17 in
sizes ranging from 14 to 24.
The thickness of the sewing thread, which
must pass freely through the needle eye,
determines the size of the needle.
To insert the needle, turn the machine
pulley toward you until the needle bar (1)
raises to its highest point, loosen the needle
set screw (2), and put the needle up into
the needle bar as far as it will go, with the
long groove of the needle toward the left,
and tighten the needle set screw securely.
Cotton, synthetic,
silk thread can be used according to your sewing purpose,
the thickness of thread available is up to #8.
Only left twist thread is to be used for the needle, to test for twist, hold
a length of thread between thumbs and index fingers of your hands. Turn
the thread counterclockwise,
if it will twist tighter, it has a left twist.
If it unravels, it has aright twist.
The bobbin can be wound with either left or right twist thread.
INSERTING AND REMOVING BOBBINS (Figs. 8 and 9)
1. Raise the needle bar to its highest point. Push open the right-hand
cover plate (1, Fig. 8) on the arm of the machine.
Pull up the latch (2, Fig. 8) and lift the bobbin from the bobbin case.
In case of the binding machine with a synchronized binder, lift slightly the
serrated nuts (1,
Fig. 9) and pull open the plate (2, Fig. 9) toward you.
2. To insert a full bobbin, hold it on one of its sides between thumb and
index finger of your right hand.
Be sure that the thread draws out from the bobbins from left to right.
Place the bobbin on the center post of the bobbin case and push down the
latch (2).
Pull the thread into the slot (3, Fig. 8) inside of the bobbin case and to
the left between the bobbin case opener (4, Fig. 8) and a projection (5, Fig.
8) and under the tension spring (6, Fig. 8).
Draw out about 5 cm of the thread on the needle plate and close the cover
plate, but leave sufficient space for passage of the thread.
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WINDING BOBBINS
The bobbin winder is mounted on the table top with its pulley in front
of the driving belt so that the pulley will separate from the belt after the
bobbin has been wound with sufficient thread.
Push the bobbin on bobbin spindle (1, Fig. 10) as far as it will go. Pass
the thread from thread stand downward through the eye in the tension
bracket. Then between and around the back of the tension discs, bring the
thread forward toward the bobbin and wind from below in clockwise
direction several times around the bobbin. Push bobbin winder lever (3, Fig.
10) downward until the wheel (2, Fig. 10) contacts the drive belt and start
the machine.
After bobbin is filled with thread, release will cause the wheel to disengage
from the belt and winding will stop.
Cut the thread and remove the bobbin from the winder spindle.
The adjustment screw (5, Fig. 10) can be turned in or out to increase or
decrease the amount of the thread wound on the bobbin.
When fine thread is wound on bobbins, use light tension. It is regulated
by turning
the knurled nut (6, Fig. 10) on the tension bracket at the rear of
the bobbin winder.
Bobbin can be wound while the machine is sewing.
If the thread does not wind evenly on bobbins, loosen the screw (4, Fig.
10) and move the bracket to the right or left as may be required, then
tighten the screw.
Fig. 10
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THREADING THE MACHINE
Raise the needle bar to its highest point.
From the thread stand lead the thread from back to front through the
lower guide hole in the spool pin (1) on the top of the machine arm, then
again from right to left through the upper guide hole in this pin.
Pass the thread in weaving fashion through the three holes in the guide
(2), and from right to left over and between the tension discs (3). Now
pull the thread downward and from right to left beneath and around the
thread controller (4), continue to pull the thread upward against the pressure
of the wire spring into the fork (5) in the thread controller.
Guide upward through the thread guide (6) and from right to left through
the eye in the take-up lever (7), down through the thread guide (6) again
and then through (8), (9) and (10) from left to right through the eye of the
needle.
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REGULATING THE THREAD TENSIONS
For ordinary stitching, the tension of the upper and lower threads should
be equal so as to lock
both threads in the center of the fabric. If the
tension on either thread is stronger than on the other, innperfect stitching
will be the result.
If the tension on the upper thread is greater than that on the lower thread,
it will be straight along the upper surface of the fabric.
If the tension on the lower thread is greater than that on the upper thread,
the lower thread will lie straight along the underside of the fabric.
Fig. 13
Perfect stitching
^ Tight tension of needle thread
Loose tension of needle thread
Fig. 12
A. TENSION OF THE UPPER THREAD
To adjust the tension of the upper (needle)
thread, turn the serrated nut (1) to the right
for increasing tension. If you desire to de
crease it, turn the nut to the left.
B. TENSION OF THE BOBBIN THREAD
To increase the tension, turn the screw (1)
to the right, and to decrease it turn the
screw to the left by a screw driver.
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ADJUSTMENT OF THE PRESSURE ON GOODS
Fig. ]5
The pressure of the presser feet is
regulated by the adjusting screw (1, Fig.
2).To
increase the pressure, turn the
screw to the right, and to decrease it
to the left.
ADJUSTING THE STITCH LENGTH
[Numerals on pulley
jshow number of
:stitch per inch
~3
Stitch length
(m/m)
Fig. 16
In case of the machine without reverse
lever, the length of the stitch Is adjusted
by turning the serrated knob (2, Fig. 15).
It will be noticed that there is a notch
(3, Fig. 15) in this hub wherein appears
anumber. Same indicates the approxi
mate number of stitches per inch.
On the occasion of the machine with
reverse stitch mechanism, it is adjusted
by turning the serrated nut (1, Fig. 16)
so that the reference mark on the collar
(3, Fig. 16) comes in line with the desired
number of stitch length on the plate {2,
Fig. 16).
The numerical numbers on the plate
show millimeter.
When making reverse stitch, push the
lever (4, Fig. 16) down as far as it will go.
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ADJUSTING THE LIFT OF THE ALTERNATING PRESSER FEET
The thickness of the material sewn should control the height of the lift of
the alternating presser feet.
It should normally be just high enough for clearance of the material. With
normal adjustment both feet lift to equal height.
To adjust the lift, loosen the wing nut (1), move up the nut to raise the
lift, and push down this nut to lower the lift.
When altering the lift of the lifting presser foot (4,
Fig. 7) unequally against
that of the vibrating presser foot (5, Fig. 7) or vice versa, see the instructions
"ADJUSTING THE HEIGHT OF THE PRESSER FEET".
Fig. 17
HOW TO RE-SET THE SAFETY CLUTCH MECHANISM
The sewing hook and its mechanism are protected by a safety clutch. In
case the hook gets jammed with thread or other foreign matter, the safety
device disengages the driving belt, stops sewing, and thus prevents the
machine from getting damaged.
If it should become necessary to re-engage
the safety clutch, depress the button (2, Fig.
2) in
the bed plate, at the same time, turn
the handwheel away from you until the lock
ing mechanism re-engages the driving shaft
beneath the bed of the machine, open the
slide plate above the hook and rock hand-
wheel back and forth to remove any foreign
matter which may have lodged in the hook.
Do not use any sharp-edged tools, lest
Fia. 18 the hook be damaged.
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REPLACEMENT OF THE TIMING BELT
1, INSERTING THE BELT
Turn the hand wheel toward
you until the take-up lever reaches
to its highest point.
Turn the lower shaft (1, Fig. 19)
until the arrow mark on the lower
belt pulley (2, Fig. 19) comes in
line with another arrow on the
timing plate (3, Fig. 19).
Insert a new timing belt into the
belt pulley at this position.
2. REMOVING THE TIMING BELT
Move the machine top cover (2, Fig. 3), remove the timing belt from the
belt pulley. Loosen the collar set screw (1, Fig. 20), draw out the feed
regulating dial (2, Fig. 15) from the arm shaft.
Loosen the two set screws (4, Fig. 15), draw out the hand wheel (1, Fig.
15) from the arm shaft.
Loosen the set screw (1, Fig. 4) and draw out the rear bushing (2, Fig. 4)
through the arm hole.
Removing and inserting the timing belt is made through the hole drawn
out the rear bushing.
After inserting a new belt, replace the arm top cover, screws to their
original places securely.
Fig. 20
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ADJUSTING THE HEIGHT OF THE FEED DOG
1 The maximum height of the feed dog (1)
j 1 from the surface of the needle plate (2) is
T / * normally 1 mm. (In case of the machine with
I m the synchronized binder, the height of the
feeder should be equal to the surface of
I adjust this height, turn the hand wheel
so as to raise the feed dog to its highest
Draw out the cylinder (4, Fig. 2).
p. Loosen the set screw (3), adjust the height
of the feeder by raising or lowering it.
Securely tighten the screw and replace the cylinder.
ADJUSTING THE TIMING OF THE NEEDLE PLATE,
NEEDLE AND FEEDER
Fig. 23
1. RELATIVE POSITION OF THE FEEDER
TO NEEDLE PLATE
Adjust the feed motion to the maximum
and loosen the screw (4, Fig. 19).
Set the position of the feeder so that both
clearances A and B(Fig. 22) are equal before
starting feed motion and after finishing the
feed.
Securely tighten the screw.
Fig. 22
2. THE POSITION OF THE NEEDLE AND NEEDLE
HOLE OF THE FEEDER
To adjust this, turn the hand pulley to raise the
needle bar to its highest point and put a perfect
needle.
Turning the hand wheel to lower slowly the needle
bar, check whether the needle descends to the center
of the needle hole of the feeder or not.
If the needle does not enter into the center of the
hole, loosen the screw (1, Fig. 23) through the window
of the arm (5, Fig. 2).
Holding the bottom of the needle bar rock frame
(1, Fig. 3) move it as may be required to get the
correct position to the feeder. Then, tighten the
— 14 —
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ADJUSTING THE HEIGHT OF THE NEEDLE BAR
1. When the needle bar Is at its highest point, normally the measurement
between the surface of the needle plate and the upper end of the needle
eye is 21.1 mm (in case of the machine with the synchronized binder, it is
19.3 mm).
To adjust this, loosen the screw (2, Fig. 3), move the setting position of
the needle bar and needle bar connecting stud (3, Fig. 3) to get the correct
position. Then tighten the screw.
2. There is another method for this adjustment by setting the needle bar
to its lowest point.
The normal position, in this case, is 4 mm approximately from the hook
point to the upper end of the needle eye.
NOTE: These measurements are approximate standard, accordingly, following final
adjustments are recommended.
TIMING BETWEEN THE HOOK AND NEEDLE
After setting the needle bar height as stated 1. or 2., confirm as follows:
Set the stitch length to 0, turn the hand wheel to lower the needle bar
to its lowest point, turn the hand wheel toward you.
When the needle raises 1.9 mm from the lowest point of its travel, normally
the hook point is at the center of the needle and the measurement between
the hook point and the upper end of the needle eye should be 2.1 mm,
further the clearance between the hook point and the needle hollow should
be about 0.05 mm to 0.2 mm.
If they are not measured as above, adjustments are made as follows:
2.1mm
1.9mm
Fig. 24
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j' 1. timing adjustment
/' ance and tighten the screws.
Fig. 25 Be sure to use perfect needle.
RELATIVE POSITION BETWEEN BOBBIN CASE AND OPENER
1. Loosen the screw (1), turn the hand
IR , wheel until the opener (2) is located at
mV I the extreme right hand position of its
^clearance between the inside edge
^ 1 opener and the tab on the bobbin
case holder is about 0.2 mm.
HH[RBRRH|HRII| ^ After the adjustment, tighten the screw.
ADJUSTING THE HEIGHT OF THE PRESSER FEET
1. ADJUSTMENT BY THE PRESSER BAR LIFTER
Loosen the screw (1, Fig. 2) sufficiently, raise the presser bar lifter and
loosen the set screw {1, Fig. 27).
Move the lifting presser foot (4, Fig. 7) up or down as may be required
so as to get the correct height and tighten the screw.
2. ADJUSTING THE LIFT OF ALTERNATING PRESSER FEET
On the model 227, 227R, 2278 and 227BR if the height of the lifting
presser foot changes, the momentums of the lifting and vibrating presser foot
vary, thus the height of the vibrating presser foot must be adjusted.
A. Lower the presser bar lifter, holding the vibrating presser foot (5, Fig. 7),
loosen the hexagon screw (2, Fig. 27) and move the presser foot up or down
as may be required.
B. After setting the position, tighten the screw.
Normally, the momentums of the alternating presser feet are adjusted to
equal, but for piping work, it is effective to adjust less momentum of the
vibrating presser foot than that of the lifting presser foot.
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TIMING OF THE VIBRATING PRESSER FOOT
This is the normal timing when, turn the balance wheel toward you, after
lowering the presser bar lifter, the vibrating presser foot should reach the
feeder earlier than the needle eye comes to, and when the needle raises,
the vibrating presser foot should leave the feeder after the needle eye has
left the feeder.
This is due to the reason that the vibrating presser foot must tightly hold
the goods while the needle is passing the goods for avoiding irregular stitches.
To adjust this, set the lift of the alternating presser feet to equal, loosen
the two screws (3, Fig. 27) and adjust the rotating position of the cam (4,
Fig. 27) faster or slower as may be desired, and tighten the screw.
ADJUSTING THE THREAD CONTROLLER SPRING
Normally the thread controller spring (2, Fig. 13) should hold slack of the
upper thread until the needle reaches to the goods, and it should pause
while raising of the needle and passing of the upper thread through the
bobbin case.
For more controller action on the thread, loosen the stop screw (3, Fig. 13)
and move the stop (4, Fig, 13) to the right.
For less action, set the stop to the left. Then tighten the screw.
To strengthen the tension of the spring, loosen the serrated nut (5, Fig.
13), loosen the screw (6, Fig. 13) and turn the tension stud (7, Fig. 13)
slightly to the left with a screw driver, or to lighten the tension, turn to
the right.
Then tighten the screw and nut.
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