White 634D Sewing Machine User Manual
Contents
1. 24 PROBLEM SOLVING 00 0 22 e ee eec eee stenet ternet tet ett tit ssc neces esse ce 25 SPECIFICATIONS onnnnnnnnmnmnannmnnenenanrenmannnnneemnanannannanennorrensnnenensesere 26 OPTIONAL ACCESSORY PRESSER FEET x 00000000000nemnnnennennnnrss 27 EA 1 NAMES OF PARTS 1 Spool pin 2 Thread take up lever cover 3 Pressure regulator screw 4 Thread tension support 5 Telescopic thread stand 6 Thread tension dials 7 Tension release lever 8 Differential feed dial 9 Stitch length dial 10 Presser foot lifter 11 Cutting width adjusting dial 12 Presser foot 13 Upper cutter 14 Front cover 15 Cutter cover 16 Front panel 17 Handwheel Right side of machine 18 Stitch finger knob 19 Stitch finger Needle plate 2 OPERATION AND FUNCTION OF PARTS Handwheel Always turn handwheel toward you Attaching Cutter cover i i Changing Presser Foot Switch off the machine 1 Raise presser foot Raise needles to their highest position by turning handwheel toward you 3 Push red button A and foot will come off 4 Position the new foot with the pin right under the groove of the ankle Lower presser foot lifter so that holder catches the presser foot Opening Front Cover To open front cover push part B of cutter cover to right and pull it down toward you Closing Front2. STITCH LENGTH 1 1 5 mm 1 1 5 mm T T DIFFERENTIAL FEED RATIO N N NEEDLE THREAD 3 5 3 5 THREAD UPPER LOOPER TENSION THREAD LOWER LOOPER THREAD 3 5 3 5 7 9 3 5 Adjust as needed according to the kind of the fabric and the threads See P24 3 At the beginning of sewing gently pull the end of the thread chain 12 PIN TUCKS Pin tucks are overlocked on the edge So as to avoid cutting the fabric raise the upper cutter Pin tucking is suited to the design of a child s clothing and a lady s blouse 1 Remove the left or right needie for your desired pintuck width Sew only with the one needle 2 Raise the upper cutter See P3 Raise the presser foot lifter 3 The tension is set for normal overlock See P12 _ The differential feed ratio is normally NY ee 4 Place the fabric under the presser foot with the edge in line with the side of the needle plate and start to sew Make chain stitch at the end of the sewing See P11 The side of the needle plate 5 The tuck is ironed to one side when your sewing is finished 13 REPLACING LOWER CUTTER Replacing Lower Cutter f N t H Ali Unplug the machine NG 1 Open front cover and disengage upper cutter Lower cutter holder S e page 3 2 Loosen lower cutter clamp screwa and remove a Lower cutter lower cut
3. 4 2 Setting the Fabric ju reressnnrvnn oanunneennnrnnanannnnnnnaanannnnaman enmm 10 4 3 Beginning and Ending of Sewing rr rer rere rrr rere rete 10 4 4 Adjustment of the Presser Foot PresSure wnra000nonnnmmenrn em 11 4 5 Thread Tension Chart scorer karte erence nnn enters tt tir n eer res 12 4 6 Thread Tension Adjustment 0 sete eee erent secre trees 13 ADJUSTING BALANCE OF STITCH WIDTH AND CUTTING WIDTH 15 STITCH LENGTH ADJUSTMENT 20 errr nec n err namn neeeenonnnnnenneerenetnte 15 DIFFERENTIAL FEED oooonmnnaannarvanrrrrennnnneneneemnanannennnmeennennnnnneneeesenert 16 CORDED OVERLOCK 2 2 2 2022 n eet men ee ee 17 SEWING FOR CURVED SEAMSG 2ec erent nn 17 THREE THREAD OVERLOCK STITCH USING 1 NEEDLE 18 ROLLED EDGE o0enamnnnenevnenanremnnnennenamannnnnnnmenerennrnnnnnnenenrnvransnntenertrere 19 PIN TUCKS onnonnnononnnnan annan nvanunnanonnnnmvannanenenanenennnnnnerennnnnnemnenmseeseter 20 REPLACING LOWER CUTTER o 000rr00nmnnrne mene tr re 21 CHANGING LIGHT BULB 2 2 ee eee renee crete nnn renner crac rennet 21 LUBRICATION 2onoonenannnnonnonnnnnnmnnnenennannnannnmmenennnnnennnnnennenvannnnennenenere 21 ACCESSORIES aaonnnnnononanan nemna nee e eee nee eeenanncenansssaaanreagarecccsesscsas acess 23 TABLE OF SEWING MATERIALS NEEDLES AND THREADS
4. Cover Push part B and close it Always close front cover when sewing Stitch Finger Knob Conversion from overlock to rolied edge Raise needle to the highest position by turning handwheet toward you For Overlock Stitch finger Push stitch finger knob to align it with the rear red line on needle plate For Rolled Edge Pull stitch finger knob toward you to align it with front red line on needle plate Needle plate Presser Foot Lifter Raise the presser foot lifter to lift up the presser foot Presser foot lifter stops at position A When replacing presser foot or sewing very thick materials presser foot lifter can be lifted up one more step to obtain wider gap Presser foot lifter Presser foot Disengaging Upper Cutter For ease in threading push the upper cutter holder screw from A side with the forefinger of your left hand and grasp the right end of the holder C and turn it in the direction of arrow pg with your right hand Since the upper cutter is sharp care should be taken when moving this part Be sure to put cutter back down before sewing Upper cutter 3 PREPARATION FOR SEWING 3 1 Connecting Power Cord Connect foot control and power cord Before plugging in your machine be sure that the voltage is same as that of your machine written on a plate at back of machine Specifications vary from country to country
5. Press the switch on the machine to turn on the power and the sewing light Always switch off or unplug machine when not in use The more you press the foot control the faster the machine runs When the power switch is turned off the machine will not operate even by pressure on the foot control X DO NOT put anything on foot control ca A EE OED ESIC REL 3 2 Setting Telescopic Thread Stand Extend the telescopic thread stand to its full height then turn it until the shaft clicks into its locked position 3 3 Changing Threads The machine is supplied with thread but the follow ing is an easy way to change themi n 1 Cut the thread in use near the cone spool behind the telescopic thread stand Place the new thread on the spindle and tie it to the end of the original thread 2 Raise the presser foot lifter to lift up the presser foot 3 Press down the tension release lever so that the thread knot can pass through smoothly draw out the looper thread until the thread knot comes to about 10 cm past the presser foot 4 When changing the needle thread cut off the thread knot before it reaches the eye of the needle to avoid bending the needle as the knot is pulled and caught in the needle s eye Cover the spool with the NET as needed to prevent thread from slipping down on thread cones When using a standard type thread spool insert the spool adapter supplied with th
6. from back to front as illustrated Then move the lower looper slightly to the right by turning the handwheel towards you Thread the hole of the lower looper 9 using tweezers Cut the thread leaving about 10cm 4 of spare thread Fig D C B ent 2 Upper looper threading B Bring the upper looper to its lowest position by turning handwheel toward you Draw thread from spool and pass it through guide of the thread stand and then in order through guides Fig A While pressing down the tension release lever with your right hand lay thread between thread tension discs with your left hand Fig B Thread the hole of upper looper 7 using tweezers Cut the thread leaving about 10cm 4 of spare thread Fig C Close the front cover 3 Needle Threading C D For ease in threading turn the moveable cutter to the non operating position See Page 3 1 Raise the needles to their highest position 2 Draw thread from spool and pass it through guide 3 Lay thread between thread tension discs while pressing down the tension release lever 4 Pass thread through guides for right needle thread Pass thread through guides for left needle thread Fig A 5 Then thread each needie s eye Cut the thread leaving about 10cm 4 of spare t
7. presser foot and begin sewing slowly 2 Ending of sewing Sew off the material forming a chain to prevent the thread from untying and to prepare for the next sewing Draw the finished fabric gently backwards and to the left as the machine is operating and make chain stitches This is called chain stitch sewing Then cut the thread 5 6cm 2 from the presser foot Do not pull it out roughly as the needle will bend and break 4 4 Adjustment of the Presser Foot Pressure The presser foot pressure is pre adjusted for materials of medium standard thickness Adjustment is necessary only when you work on very thin or very thick materials Accordingly sew thinner materials with less pressure and thicker materials with more pressure increase the pressure of the presser foot by tightening the adjustment screw Loosen Tighten eo 4 5 Thread Tension Chart THREAD Left Needle Right Needle Upper TENSION Looper PATTERN STITCHES STITCH LENGTH CUTTING WIDTH OVERLOCK FINE ROLLED EDGE The tension for each of the thread tension dials should be different according to the pattern stitches as in the chart above Since the figures in the chart are for average strength of thread tension it may be necessary to adjust the thread tension slightly Thread tensions will differ according to the kind of fabric and the thread The differential fe
8. 2 Using the vinyl cover provided please cover your machine when you finish your sewing 3 Store away from bright and damp places SERVICING I tein titi ities ss iii Any questions regarding service and or operation See re to be addressed to the store where the machine was purchased 16 ACCESSORIES Screw drivers large small Lower cutter Tweezers Cleaning brush Net anti spill sleeves Vinyl cover Oiler Spool Adapter e Needles plastic sheath HAx1 a T SCHMETZ 11 2 130 705H 05 Le E 14 3 90 en E 1 17 TABLE OF SEWING MATERIALS NEEDLES AND THREADS Thin material Medium to thick Thick material crepe georgette material thick denim Serge gabardine etc T HAx1 Needle SCHMETZ 411 11 414 14 130 705H 75 75 90 90 For home use sewing machine 60 2 Twisted thread 60 2 Twisted thread 50 2 Twisted thread 80 2 twisted thread 60 2 twisted thread Thread 80 3 Twisted thread Three or four thread Three or four thread 100 3 twisted thread overlock stitch overlock stitch Three thread overlock stitch Thread tension Loose Medium Tight Set the balance of looper tensions weak Needle thread Overedging width 5 2 5 5mm 5 2 5 5mm 5 5 6mm
9. Between left needle and edge Stitch length Use bail point needies for Man Made fibers or stretch fabrics 24 18 PROBLEM SOLVING Under normal conditions if you carefully follow instruction for operating necessary for this Following cases are not failure 0 PROBLEM machine CAUSE CORRECTION no difficult or special adjustment is f machine Check your machine before you call for service REF ERENCE PAGE Machine does e Not plugged in properly Plug cord into electrical outlet and machine properly N Machine does not feed properly e Pressure on presser foot insufficient e Differential feed not set correctly e Increase pressure by turning pressure regulator screw to right e Adjust differential feed 11 L Needle Breaks e Bent or blunt needle Needle inserted incorrectly Pulling fabric while sewing e Insert new needle e Reset needle e Do not pull fabric Breaking Threads e Improper threading Thread tension s too tight e incorrecto setting of needle Re thread machine e Reset thread tension s e Reset needle e Reset needle change to new needle Skipping Stitches Bent or blunt needle Needle inserted incorrectly e Improper threading Insert new needle Reset needle Re thread machine Irregular Stitc
10. INSTRUCTION Boox SUPERLOCK 634D e34 DE WHITE Sewing machine company POLARIZED PLUG CAUTION To reduce the risk of electric shock this appliance has a polarized plug one blade is wider than the other This plug will fit in a polarized outlet only one way If the plug does not fit fully in the outlet reverse the plug If it still does not fit contact a qualified electrician to install the proper outlet Do not change the plug in any way EE OVERLOCK SEWING MACHINE Record in space provided below the Serial No and Model No of this appliance The Serial No is located Rear of arm The Model No is located Rear of arm Serial No Model No 6340 Retain these numbers for future reference IMPORTANT SAFETY INSTRUCTIONS When using an electrical appliance basic safety precautions should always be followed including the following Read all instructions before using this appliance DANGER To reduce the risk of electric shock An appliance should never be left unattended when plugged in Always unplug this appliance from the electric outlet immediately after using and before cleaning WARNING To reduce the risk of burns fire electric shock or injury to persons 1 Do not allow to be used as a toy Close attention is necessary when this appliance is used by or near children 2 Use this appliance only for its intended use as described in thi
11. e machine as shown 3 4 Replacing Needle Replace needle in the following way Note be sure to take out the power supply plug before replacing needle 1 Bring needle to its highest position by turning handwheel towards you 2 When replacing right needle loosen right Tighten needle clamp screw and remove needle For left needle replacing loosen left needle clamp screw 3 With the flat side away from you insert the new needle into groove of needle bar as far as it will go Use HAx1 11 14 SCHMETZ 130 705H NO 75 90 These are the same as for home use sewing machine Left Needle Right Needie Clamp Screw Clamp Screw Loosen 3 5 Threading When threading the machine from the beginning threading must be carried out in the following sequence First Lower looper threading A Second Upper looper threading B Finally Needle threading C D 1 Lower looper threading A Open front cover See Page 2 Take the thread drawn from the spool and pass it through guide of the thread stand and then in order through guides and thread tension dial Fig A While pressing down the tension release lever with your right hand lay thread between thread tension discs with your left hand Fig B Bring the lower looper to the far left position by turning handwheel towards you and pass the thread through lower looper thread guide 7 Fig C Hook thread around part 8
12. ed ratio is set N 7 DIFFERENTIAL FEED Differential feed prevents stretching or puckering fabrics since two independent feed dogs one in front and one behind the needles can be adjusted to feed at different ratio This function produces a neat finish of overlock for stretchable and lightweight fabrics sk N indicates the normal position scrap of material you are going to use Result of adjustment Differential feed ratio Stretchable materials Jersey Normal materials Medium woven fabrics Very lightweight materials Georgette 8 CORDED OVERLOCK Corded overlock can be used te strengthen and stabilize stitches when joining elastic materials such as knitted fabrics There are two ways of corded overlock 1 Place the narrow cord about 3mm into the hole in the foot and back under the foot then sew with the right needle stitching through the cord 2 Sew over a narrow cord positioning it on the edge of the overlocked stitch 9 SEWING FOR CURVED SEAMS For a neat and clean finish of curved seams For inside curves guide the fabric gently with the trimming line of the fabric under the right front of the presser foot applying pressure to the fabric with your left hand at the same time apply a little pressure in the opposite direction with your right hand to hold it against the cutter as sh
13. ed ratio is normally N See P16 4 6 Thread Tension Adjustment Set the balance of the tension as weak as possible To tighten the tension turn tension dial to a higher number To loosen the tension turn tension dial to a lower number Left needle thread tension Right needle thread tension Upper looper thread tension Lower looper thread tension Gi 1 Correct tension Lower looper thread and upper thread should be weil balanced with same tension Both looper threads should make crosses at the edge of the fabric Needle thread should not be slacken or pulled 2 Unbalanced upper looper thread wraps round and over the back Tighten the thread tension of the upper looper Dial or loosen the thread tension of the lower looper Dial Lower looper thread aN cee We i Right needle 4 thread Upper looper thread Left needle ie Lower looper thread Left needle thread Right needle thread Upper looper thread 3 Unbalanced lower looper thread wraps round and over the face Tighten the thread tension of the lower looper Dial or loosen the thread tension of the upper looper Dial Right needle thread 4 Unbalanced left needle thread too loose Tighten the thread tension of the left needle Dial or loosen both lo
14. hes e Tension not adjusted properly Check thread tensions 13 14 Puckering Needle thread tensions are too tight e Improper threading e Need drfferential feed Loosen needle thread tensions Re thread machine Set differential feed 0 7 N ENES 49 SPECIFICATIONS Number of threads 4 Threads 3 threads Number of needles 2 Needles 1 needle Standard HAx1 11 14 SCHMETZ 130 705H Needies NO 75 90 Width between two needles Overlock width Standard 5 5 mm Range 5 2 7 mm Stitch length Differential feed ratio Maximum sewing speed 1500 RPM Width 300mm Machine dimensions Depth 230mm Max 340mm Height 290mm Max 350mm 555mm 20 OPTIONAL ACCESSORY PRESSER FEET Blindhem foot Piping foot sen an ira eoninn EIER 1670009 111 B 4
15. hread Use tweezers for easy threading to needle s eye Preparation for Sewing and Checking Check that no thread slips off guides or breaks Confirm that the upper cutter moves against the lower cutter correctly by turning the handwheel slowly towards you If it is not correct check if there is any fabric or waste thread between cutters Turn the handwheel towards you with your right hand to check that the thread winds around the stitch finger of the needle plate If the thread doesn t wind around the stitch finger of the needle plate check if any threads are threaded incorrectly 4 FOUR THREAD OVERLOCK STITCH USING 2 NEEDLES 4 1 Before Sewing After threading is completed and when the threads are not wound around the stitch finger gently draw out the four threads under and behind the presser foot and turn the handwheel towards you by hand two or three times to make stitch form on the stitch finger 4 2 Setting the Fabric When beginning to sew place the material just ahead of the presser foot and it will be fed through There is no need to raise the presser foot lifter For setting the very thick material Raise presser foot lifter to lift up the presser foot Place the material under the presser foot and push it to the front of the cutter and lower presser foot before sewing 4 3 Beginning and Ending of Sewing 1 Beginning to sew Place the material under the toe of the
16. oper threads Dial and Left needle thread Right needle thread 5 Unbalanced right needle thread too loose Tighten the thread tension of the right needie Dial thread Left needle thread Right needle thread 14 5 ADJUSTING BALANCE OF STITCH WIDTH AND CUTTING WIDTH Adjust the cutting width from 5 2 0 2 to 70mm 0 28 according to the kind of material The standard cutting width is 55mm 0 21 Open the front cover to adjust the cutting width 1 If the cutting width is narrower than the stitch width leaving loops off the fabric edge turn the cutting width adjusting dial to the direction o arrow To a bigger number 2 If the cutting width is wider than the stitch width causing a pucker within the overlock seam turn the cutting width adjusting dial to the direction of the arrow To a smaller number 6 STITCH LENGTH ADJUSTMENT The machine is pre set to a 2 5mm stitch length for regular seaming and overlock You may adjust the Stitch length from 1mm Narrow rolled edge to 5mm by one touch of the stitch length dial For normal overlock set the stitch length from 2 5mm to 5mm A stitch length less than 2 5mm is used only for rolled edge Indicator Stitch length dial se Differential feed dial Indicator Refer to the chart below and test stitch performance on a Fabric Differential fe
17. own For outside curves apply pressure in the opposite directions of the above 10 THREE THREAD OVERLOCK STITCH USING 1 NEEDLE Though this machine is made mainly for 4 thread stitch overlock using 2 needles To sew three thread stitch overlock using 1 needle simply remove 1 needle 1 By removing the right needle Three thread overlock stitch using 1 needle for as wide as a 4 thread overlock stitch using 2 needles can be achieved Use the left thread tension Dial The cutting width is normally 6mm The differential feed ratio is normally N See P 16 2 By removing the left needle The right needie sews with a narrow width Use the right thread tension Dial The cutting width is normally 4mm The differential feed ratio is normally N See P 16 11 ROLLED EDGE Fine Rolled Edge Rolied Edge The fabric is rolled by adjusting The thread tension and is overlocked with upper looper thread The fabric is overlocked with upper and lower looper thread Rolled edge is achieved by rolling the fabric and overlocking the 2 type i 1 Remove the left needle Sew only with the right needle 2 Pull stitch finger knob toward you to align it with front red line on needle plate STANDARD CHART FOR ROLLED EDGE ROLLED FINE ROLL EDGE ED EDGE CUTTING WIDTH 5 6 mm 5 6 mm
18. s 4 Do not pull or push fabric while stitching It may deflect the needle causing it to break 5 Switch the sewing machine off t0 when making any adjustments in the needle area such as threading needle changing needle or changing presser foot etc 6 Always unplug sewing machine from the electrical outlet when removing covers lubricating or when making any other user servicing adjustments mentioned in the instruction manual 7 Never operate on soft surface such as bed or couch where the air openings SAVE THESE INSTRUCTIONS gt EEE 1 2 3 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 CONTENTS NAMES OF PARTS 000 cence eee nee ree nr ann eens tir eee eee eS 1 OPERATION AND FUNCTION OF PARTS nmnmmnammvvnanamanannanannavaenan m 2 PREPARATION FOR SEWING 22eecce cece nett 4 3 1 Connecting Power Cordua ene 4 3 2 Setting Telescopic Thread tand xo02 a00o000nnnnnnennnnenenteenenen 5 3 3 Changing Threads a aoornannnnnennnorornnnnnnennennnnnnnneeeeennnnsneenneetnnere 5 3 4 Replacing Needle 0onnnnnnnnnnorarnnnnnnnnnnnnnrnennennnnnneverannnneenenereenet 6 3 5 Threading oooeeannnnrr00r0nnrnnrnannanrennennnnnnnnnneorenannrnnnennrsnnnenneeTeTer 7 4 1 Before Sewing a ssas0rs0r0002001 apnpnennmeraonmannnnemnnvennuennnnunnnnnnnnnnene nane r
19. s manual Use only attachments recommended by the manufacturer as contained in this manual 3 Never operate this appliance if it has a damaged cord or plug if it is not working properly if it has been dropped or damaged or dropped into water Return the appliance to the nearest authorized dealer or service center for examination repair electrical or mechanical adjustment 4 Never operate the appliance with any air openings blocked Keep ventilation open ings of the sewing machine and foot controller free from the accumulation of lint dust and loose cloth Never drop or insert any object into any opening Do not use outdoors Do not operate where aerosol spray products are being used or where oxygen is being administered 8 To disconnect turn all controls to the off 0 position then remove plug from outlet 9 Do not unplug by pulling on cord To unplug grasp the plug not the cord DANGER 1 Always unplug before relamping Replace bulb with same type rated 15 watts 2 Do not reach for an appliance that has fallen into water Unplug immediately i 3 Do not place or store appliance where it can fall or be pulled into a tub or sink Do not place in or drop into water or other liquid NoT WARNING 1 Keep fingers away from all moving parts Special care is required around the sewing machine needle 2 Always use the proper needle plate The wrong plate can cause the needie to break 3 Do not use bent needle
20. ter clamp screw 3 Set the new lower cutter Align the top of lower cutter with the top of cutter needle plate and tighten lower cutter clamp screw a 14 CHANGING LIGHT BULB When the light does not come on even though it is switched on How to remove the lamp cover 1 Take out the power supply plug 2 Remove the presser foot lifter by pulling it out 3 Remove the lamp cover 4 Change the light bulb 5 Repiace the lamp cover How to use the bulb catcher plastic sheath 1 Take out the power supply piug 2 Place the bulb catcher plastic sheath found in the accessory box around the bulb in the direction of arrow f turn it in the direction of arrow and remove the bulb 3 Replace the new bulb in the reverse steps of 2 i 2 220 240V 100 125V 15 LUBRICATION Although Lubrication is not required often for this machine since the important parts are all made of a special oil impregnated sintered metal one or two drops of oil on moving metal parts will increase durability CLEANING First disconnect machine from power supply by removing plug from the electric outlet 1 Open front cover and side cover See Page 3 2 Using the brush provided remove all the dust and lint that has accumulated STORAGE 1 When the machine is not in use please disconnect it from the power Supply by removing plug from the electric outlet
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