Consew 733R-5 Use and care manual

LDNSEIN
OPERATING INSTRUCTIONS,
PARTS LIST
MAINTENANCE PROCEDURES
CONSOLIDATED SEWING
MACHINE CORP.
Model
733R-5
EXTRA HEAVY DUTY
LONG ARM
SINGLE NEEDLE
DROP FEED
ALTERNATING
PRESSER FEET
LOCKSTITCH MACHINE
CONSOLIDATED SEWING MACHINE CORP.
COPYRIGHT (01989 CONSOLIDATED SEWING MACHINE CORPORATION
From the library of: Superior Sewing Machine & Supply LLC

INTRODUCTION -CONSEWMODEL 733R-5
ConsewModel733R-5 is a single needle,flatbed,type 301 stitch,reverse feed,industrial
sewing machine usedis the fabrication andrepair
of aerial delivery equipment.
ConsewModel 733R-5 is capable
of sewingfabrics thatrange from heavy cotton and
nylonduckto multiple layers
of heavywebbing.
ConsewModel 733R-5 is able to fabricate and install
personnel-,cargo-and
extraction-parachutes, bridle loops,locking stowloops,harnesses and multiple layer
heavywebbing splices.
Preventive Maintenance
Machines should
be keptcoveredwhennot in operationto preventdust and dirt
accumulationwhich,when allowedto buildup,mixes with oil and becomes cakedonthe
machine.
Afteruse, sewingmachines should
be wipeddownwithoil anda soft clothbefore
covering.
Once a weekthe inside of the machine andthe motor should be
blownoutwith shop air if available.Ifshop airis not available, cleanwith a softbristle
brush.
CAUTION: USE EYE PROTECTION WHENUSING SHOP AIR.
Once a yearthe machine shouldbe cleanedwith a solvent such as Freon, then
immediatelyoiledthoroughly to preventrustand corrosion.
CAUTION: ENSURE GOODVENTILATION WHENUSING SOLVENTS.
Whenthe machines are in constantuse theyshould be oiledatleast twice daily.
Usingtheproperoil is of utmostimportance. For lubrication of the machine,onlygood
quality sewingmachine oil shoud
be used.
a. Oilingpoints are shownin figures 10 and 11.
b.
Use one drop at each oilingpoint.
From the library of: Superior Sewing Machine & Supply LLC

SECTION I1 OPERATING INSTRUCTIONSAND
MAINTENANCE PROCEDURES
Characteristics and Capacity
The CONSEW Model 733R-5 singleneedle,extraheavy duty lockstitch machine is
designed for sewing canvas,tents,sails,hamesses,safetybelts,webbing and similar
products.
It is equipped with altematingpressers,drop feed and a long-beakoscillating shuttle on a
horizontal axis.It has a
cleanceof25.4mm(l" )under the presser foot. Clearance,on
bed,at right
of needle is413mm(16 t;4' )and length ofbcd 655mm(25-3/4")
The machine is equippedwitha stitching reverse lever whichalso regulates stitches in
length from 3 to 13mm(2to 8 stitches perinch).
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Alternating pressers consist ofavibrating presser foot and alifting presser foot working
in combination.In operation,the pressers alternately press down on the material,the
vibrating presser working in unison with the feed, so that there is no slipping of the two
or more plies ofmaterial which are being sewn. Additional features include pedal
operated presser foot lift
and reverse.The maximum operating speed is 550 stitches per
minute.
The balance wheel always rotates towards the operator.
THREAD AND NEEDLE SELECTION
THREAD
Left twist thread should be used in the needle. For the bobbin,either right twist or left
twist
can be used.
Fig.1 How to determine the twist
Hold the thread as shown in Fig.1 . Turn the thread over toward you between the thumb
and forefinger ofthe right hand .Ifleft twist, the strands will wing tighter.Ifright twist,
the strands will unravel.
NEEDLE
Needles recommended for Consew machine Model 733R-5 are as follows;
For Cloth
Schmetz-1
000 Series available in sizes 230,250,280,and 300
Schmetz-1000H Series available in sizes 160,200,230,
250,280,300,330
For Leather(Special orders only)
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Schmetz- J.003D Series,triangularpoint,available in sizes 230,250,280
Schnietz- 1 OOODB 1Series- wide diamond point available in sizes 280
Schmetz- lOOOLL Series,narrow twist point,available in sizes 250,280
Schmetz- J.OOOLR Series,narrowreverse twist point,available in sizes 300
Schmetz lOOO.Q Series,square point,available in sizes 280,300
The size of the needle to be used depends upon the size of the thread which must pass
freely through the
eye ofthe needle.
Do not use rough or uneven thread or thread which passes with difficulty through the
needle eye,as such thread will interfere with the successful use
of the machine.
TO REMOVE THE BOBBIN
Rotate the balance wheel bringing the needle bar to its lowest position.Then with the
curved part
of the shuttle cylinder opener t35225,which should conform to the curve of
the should,
as shown in Fig.2,insert the small end of the shuttle cylinder opener into Slot
Ain the spring latch under the shuttle cylinder(Fig.2).
Fig.2 use
of Shuttle Cylinder Opener(35225)
4. WINDING BOBBINS
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The bobbinwinder ismounted on the tabletop as showninFig.3 with its pulley in front
of the driving belt so that the pulleywill separate from thebelt after the bobbinhas been
wound with sufficientthread.
Push the bobbin
on the bobbin spindle {l,Fig.3)as far as itwill go.Pass the threadfrom
thread stand downward throughthe eye in thetension bracket.Then betweenandaround
the back
of thetension discs,bring the threadforward toward the bobbinandwind from
below in clockwise directionseveral times around thebobbin.Push bobbinwinder lever
{3,Fig.3)downwarduntil the wheel{2,Fig.3)contactsthe drive belt andstartthe
machine.
Afterbobbin is filledwith thread,release will causethe wheel to disengagefrom the belt
andwinding will stop.
Cutthe thread andremove the bobbin fromthe bobbin spindle.
The adjustment screw{S,Fig.3)can
be turned in or outto increase or decreasethe
amount
of the threadwound onthe bobbin.
When fine thread iswound
on bobbins,use lighttension.ltis regulated by turning the
knurlednut{6,Fig.3)on the tensionbracket at the rear
of the bobbinwinder.
Bobbincan
be woundwhile the machine issewing.
If the thread does not wind evenly onbobbins,loosen the screw(4,Fig.3)andmovethe
bracketto the right
or left as required,thentighten the screw.
6
3
Fig.3,winding Bobbins
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5.TO REPLACE THE BOBBINAND THREADTHE SHUTTLE
Hold the bobbinbetweenthe thumb and indexfinger
of the lefthand,atthe sane timethe
thread is drawing offfrom the undersidetoward the right as shown
in Fig.4.Place the
bobbin
in the cylinderas far as it will go,draw the threadinthe slot B,Fig.4in the
cylinder and under thetension spring,then into thedelivery eyeA.Fig.4,thenpushthe
cylinderbackuntil
it is locked by thespring latch,and allow about3 inches of threadto
hang free from theshuttle Fig.S so that
it canbe drawnup through the throatplate,as
noted in Fig.
8.
Fig.4 BobbinReplacement andThreading the Shuttle
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Fig.5 Bobbinreplaced andShuttle thread
6.TO SETTHE NEEDLE
Rotate the balance wheeluntil the needle
bar has reached its highestpositon.Loosen the
set screw
in theneedle clamp and placethe needle up intothe clamp as faras it will go.
The long groove
of the needle mustbefacing left and theeye in line withthe arm of the
machine.Then tighten the setscrew.
7
.TO THREAD THENEEDLE
With operatorfacing front
of machine, tum balance wheel,until the threadtake-up lever,
(Fig.6)reaches its highest position.
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Fig.6 Threading theneedle
Openthe lid ofCup C;pass the threadfrom the cotton standdownward through the hole
in the right side
of cup,thenthrough thethread post 1 undesthe lid ,then throughthe hole
in the left
sideofcup.Then close thelid and pass thethread through the threadguide 2,
over from righttoleftbetween the threadretainer discs 3,down underand from thread
guide
13 to letaround the tension wheel4,into the
loop
of the threadtake-up spring S,underthestaple 6,Figs.6 and 7,upand from backto
front through the hole7,inthe threadtake-uplever,down throughthe thread guide
8,
Fig.7 into the slot9 in the vibratingpresser bar,intothread guide 10 onthe needle
clamp,and from lefttoright through the eye
of the needle 11 thenpass thethread down
through the hole inthe lifting presser foot 12. Draw about fourinches
of threadthrough
the hole
of thelifting presser foot withwhich to pull upthe bobbin thread as shown in
Fig.8.
Note:Ifthread lubrication isnotrequired,omit thread fromcup C Fig.6 andstsrt
threading machine atthread guide 2(Fig.6.)
From the library of: Superior Sewing Machine & Supply LLC

7
Fig.7 Threading theNeedle
B.
TO PREPARE FOR SEWING
With the
left hand hold the end of the needlethread,leaving it slack fromthe hand to the
needle.
Turn the balance wheel until theneedle moves down and up again to itshighest
position,thus catching
the bobbinthread;draw up the needle thread and the bobbin
thread will come up with it through thehole in the throatplate(see Fig.8)Lay both
threads back under thepresser feet.
From the library of: Superior Sewing Machine & Supply LLC