CV_KH4001_E4521_LB4

23.04.2008

9:38 Uhr

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FREE-ARM SEWING MACHINE

KH 4001 FREE-ARM SEWING MACHINE Operating instructions MASZYNA DO SZYCIA Instrukcja obsugi SZABADKAROS VARRGP Hasznlati utasts PRENOSNI IVALNI STROJ Navodila za uporabo RAMENOV IC STROJ Nvod k obsluze IJAC STROJ S VONM RAMENOM Nvod na obsluhu IVAA MAINA Upute za upotrebu KOMPERNASS GMBH BURGSTRASSE 21 D-44867 BOCHUM www.kompernass.com ID-Nr.: KH4001-04/08-V1 FREIARMNHMASCHINE Bedienungsanleitung

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KH 4001

x c v b n

9 j m h 0 M N B

a e r p V C X Y L

z o u i

IB_KH4001_E2719_GB_LB4

9:28 Uhr

CONTENT

Safety information Correct Usage Items supplied Appliance description Setup Connecting the sewing machine Operation of the sewing machine Operating elements Recommended stitch lenghts for the various types of stitches Threading the needle and preparation Sewing with the twin needle Tensioning the thread Straight stitch Sewing in zigzag stitches Sewing blind hems Sewing with the shell stitch Sewing with elastic stitches Two-fold rampart stitch Scallop stitch Additional decorative stitches Fishbone stitch Finishing edges Sewing material edges with feather stitch Sewing with three-fold zigzag stretch stitches Sewing buttonholes Fine adjustment during sewing buttonholes Sewing on buttons Sewing in zippers Gathering Darning Appliques Monograms and embroidery Changing the lamp bulb Lubricating the machine Cleaning Storage Technical data Disposal Warranty & Service Importer Troubleshooting
Read the operating instructions carefully before using the appliance for the first time and preserve this booklet for later reference. Pass the manual on to whomsoever might acquire the scale at a later date.

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FREE-ARM SEWING MACHINE KH 4001

Safety information

Like any other electrical device, a sewing machine can cause serious, even life-threatening injuries. To avoid this, and in order to work safely: Before initial use of your sewing machine, read these operating instructions attentively. Keep these operating instructions at a suitable location close to the appliance. If you dispose of this appliance to another person, pass on these instructions also. Always disconnect the power supply when leaving the machine unattended. This will avoid potential accidents if the machine is switched on accidentally. First disconnect the power plug before changing the bulb or performing any maintenance work on the machine. This will avoid potentially fatal electric shocks. Do not remove the plug from the wall socket by the cable. When disconnecting the plug, always hold the plug, not the lead. Only use the sewing machine in dry rooms. Arrange for defective power plugs and/or cables to be replaced at once by qualified technicians or our Customer Service Department. This appliance is not intended for use by individuals (including children) with restricted physical, physiological or intellectual abilities or deficiences in experience and/or knowledge unless they are supervised by a person responsible for their safety or receive from this person instruction in how the appliance is to be used. Children should be supervised to ensure that they do not play with the appliance. Never use the machine when the ventilation apertures are blocked. Keep the ventilation apertures of the machine and the foot switch free from fluff, dust and waste material.

Foot pedal l

The machine will begin to sew at a slow speed as soon as the foot pedal l is gently activated. The sewing speed of the machine will increase when more pressure is applied to the foot pedal l. The machine will stop running when you take your foot from the pedal, as pressure is no longer being applied to the pedal l.

Attention!

Ensure that you do not place any objects on the foot pedal l, as this could lead to unintentional running of the machine.
Changing the sewing needles Accessories
x c v b n m M N B V C X Y L K J H G F
small thread roll holder large thread roll holder Darning plate additional thread spool carrier Felt pads 4 bobbins Sewing foot for sewing in zippers Sewing foot for sewing buttonholes Sewing foot for sewing on buttons 6 Sewing needles Twin needle Large screwdriver Small screwdriver Protective cover Sewing machine lubrication oil Brush and thread cutter Stitch plate opener Threading aid Blind hem foot

Important

Remove the power plug k from the wall socket! Otherwise the appliance could run unintentionally. 1. 2. 3. 4. By turning the handwheel 0 bring the needle shank into the highest possible position. Apply pressure to the sewing foot lifting lever g so that the sewing foot s is lowered onto the stitching plate a. Remove the needle by loosening the retaining screw f. Turn the new needle into a position whereby the flattened side of the needle is pointing to the rear and insert the needle as far as it will go into the needle clamp from below. Tighten the retaining screw.

Checking the needle

1. 2. Sewing needles must always be straight and, so that the sewing procedure is smooth, must possess a faultless point. Lay the flat side of the needle onto a smooth, even surface to check if the needle is bent. This permits the easiest ascertainment of whether the needle is bent or not.
Remove all packaging material from the appliance and the accessories. Put the sewing machine onto a stable, even and non-slip table. 3. Replace the needle whenever it is broken or blunt.
Connecting the sewing machine
Connect the plug of the sewing machine y with the box e on the sewing machine. Insert the power plug k into a wall socket. Activate the power switch r in order to switch on the lighting of the sewing machine.

Changing the sewing foot

Dependant on the type of sewing you wish to carry out, it may be necessary to exchange the sewing foot s.
Remove the power plug k from the wall socket! If you do not, the appliance could start to run unintentionally. 1. By turning the handwheel 0 (towards you, in an anti-clockwise direction) bring the needle into the highest possible position and raise the sewing foot lifting lever g and hence the foot bar. Loosen the foot by carefully pressing the unlocking lever at the rear of the spindle of the sewing foot upwards.

The sewing machine is now ready for operation.
Operation of the sewing machine

Power switch r

This switch is used r to switch the power supply and the lighting of the sewing machine on and off. Set the power switch r at I, to switch the sewing machine on. Set the power switch r at O, to switch the sewing machine off.

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Position the sewing foot s to be mounted with the base lying on the stitch plate a in such a manner that the suspension pin on the foot and the slot on the foot spindle are directly in line. Lower the lifting lever g and complete connection of the sewing foot s with the sewing spindle. When the foot is correctly positioned, it must click into place at the suspension pin of the foot.

Operating elements

Notice
Whenever you change the type of stitch, ALWAYS bring the needle into the highest position to prevent it being damaged. In order to select a specific type of stitch, turn the stitch pattern selector w, until the number of the required stitch type can be seen in the inspection slot q.
Changeover to free arm operation
Sewing with the free arm option is suitable for tube-shaped fabrics and areas which are difficult to access on garments and other fabrics. To change your machine over to free arm operation simply remove the sewing table extension p. 1. 2. Raise the table extension p until it is released from the catch. Pull the sewing table extension p out towards the left.
All stitch patterns have preset stitch widths, which means that the type of stitch selected is the only setting value required to be chosen by the user. The following table shows the preset stitch width for every type of stitch and the relevant recommended stitch length range.
Prior to setting the stitch pattern selector w by turning the stitch pattern selector w you must relieve the sewing foot s by activating the lifting lever g and removing the needle from the fabric.
Recommended stitch lenghts for the various types of stitches
Stitch number 21 Designation of type of stitch Buttonhole stitch, automatic, 1-stage Straight stitch (Needle position to the left) Straight stitch (Central needle position) Zigzag stitch Zigzag stitch Zigzag stitch Blind hem stitch Shell stitch Elastic stitch Stretch blind stitch (stretchable) 2-fold rampart stitch Scallop stitch Random zigzag stitch Pearl stitch Fishbone stitch Arrow point stitch Feather stitch Slant edging (open) overlock stitch Elastic overlock stitch Triple zigzag stretch stitch Triple stretch stitch

preset stitch width in mm (inches) Recommended stitch length in mm (inches)
5 (13/64) 1.5 (1/16) 3.5 (9/64) 5 (13/64) 3 (1/8) 5 (13/64) 5 (13/64) 3 (1/8) 5 (13/64) 5 (13/64) 5 (13/64) 5 (13/64) 5 (13/64) 5 (13/64) 5 (13/64) 5 (13/64) 5 (13/64) 5 (13/64) 0
F-1.5 (1/64-1/16) 1-4 (3/64-5/32) 1-4 (3/64-5/32) F-4 (1/64-5/32) F-4 (1/64-5/32) F-4 (1/64-5/32) F-2 (1/64-5/64) F-3 (1/64-1/8) F-2.5 (1/64-3/32) F-1.5 (1/64-1/16) F-3 (1/64-1/8) F-1.5 (1/64-1/16) F-1 (1/64-3/64) F-1 (1/64-3/64) fixed; 2.5 (3/32) fixed; 2.5 (3/32) fixed; 2.5 (3/32) fixed; 2.5 (3/32) fixed; 2.5 (3/32) fixed; 2.5 (3/32) fixed; 2.5 (3/32)

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Setting the stitch length
Depending on the type of stitch you have set, it may be necessary to adjust the stitch length appropriately to achieve the best possible sewing results. The numbers on the thumb wheel of the stitch length selector 6 correspond to the respective stitch length in millimeters (mm), hence, A HIGHER NUMBER MEANS THAT THE STITCH WILL BE LONGER. When the stitch length selector is set at there will be no feeding of the product to be sewn. This setting is used for sewing buttons on. The range designated with F is used for the creation of so-called satin stitches (zigzag stitches sewn very closely together). Satin stitches can be used to sew button holes or as embroidery stitches. The appropriate setting within the F range required for special cases is dependant on the fabric and the sewing silk used. To find the respective required setting, you should first try out the stitch and stitch-length settings on remants and, at the same time, observe the feeding characteristics, varying the settings until the desired results have been obtained.

7. 8. 9.

Now switch the sewing machine on and step on the foot switch l. When the bobbin is full, cut the thread. Press the winder spindle 8 back to the left and remove the full spool. Press the handwheel 0 back in otherwise the sewing mechanism of the machine will remain disconnected from the motor.
Inserting the spool Important
Remove the power plug k from the wall socket! Otherwise, the appliance could run unintentionally. 1. By turning the handwheel 0 (towards you in an anti-clockwise direction) bring the needle into the highest possible position and release and raise the foot with the lifting lever g. Access the bobbin case carrier by removing the sewing table extension p in the manner described above. Open the flap of the sewing table. Remove the bobbin case by drawing its clip towards you (flap), then remove the entire case by pulling it out from the retaining pin towards you.

Stitch length Direction of rotation required to reduce stitch lengths e. Direction of rotation required to increase stitch lengths

Sewing backwards

To sew backwards, press the sewing direction reverse switch t as far as it will go, keeping it pressed while simultaneously activating the foot pedal l. To resume sewing forwards stop applying pressure to the sewing direction reverse switch t, whereupon the machine will immediately change over to sewing in a forward direction. The stitching backward function is employed to finish off and reinforce seams.
Threading the needle and preparation

Engaging the spool

1. Tip the thread spool carrier 5 upwards and fix a spool of thread on the carrier. Secure the spool with a thread spool holder x/c of the appropriate size. Lay the felt pad n on the winder spindle 8 and then place an empty bobbin on the spindle. Draw the thread through the upper thread guide 1. Wind the loose end of the thread a few times around the empty bobbin in a clockwise direction. When the first loose end windings of the thread are tautly wound around the spool, press the spool with the winder spindle 8 against the spool stop 9. 3. Unwind approximately 10 cm (4) of the thread from the bobbin and insert the bobbin into the bobbin case. Hold the bobbin case during the process. Draw the thread you have unwound downwards and then leftwards into the slit in the bobbin case, until the thread runs into the outlet slit under the spring tab.

2. 3. 4. 5.

Pull the handwheel 0 on the right side of the machine out a little to disconnect the sewing mechanism from the motor.

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Insert the bobbin case in the carrier, holding the case by the catch and then releasing the catch. The driver o on the outside of the bobbin case must catch in the notch z on the top of the case carrier.
Sewing with the twin needle
Your machine is also designed for sewing with twin needles C, meaning, you can sew with two upper threads simultaneously. These two upper threads can be the same colour or for decorative purposes different colours. Adjust the setting wheel single needle twin needle 4 to the symbol twin needle.

If the bobbin case has not been correctly inserted in the carrier, it will fall out as soon as you commence sewing.
Threading the upper thread
1. 2. 3. Raise the sewing foot s by activating the lifter lever g as illustrated. By turning the handwheel 0 (in an anti-clockwise direction) bring the needle into the highest possible position. Slide a spool with thread onto the horizontally located thread spool carrier 5, then press one of the two supplied thread spool carriers x/c onto the pin so that the thread spool is held in place.
Inserting the twin needles C
The twin needles C are inserted principally in the same manner as single needles. Also in this case the flattened side of the needle shaft must be pointing to the rear and the rounded side of the shaft cross section must be pointing to the front.
Positioning the additional thread spool carrier Notice
Select spools of thread complying with the thread spool carrier x/c in shape and size. The external diameter of the selected thread spool carrier x/c should be slightly greater than the external diameter of the winding on the spool of thread. 4. Feed the thread you have unwound from the spool through the thread guide, as is illustrated in the diagram and on the machine. Insert the vertical thread spool carrier into the opening 7 on the machine upper side close to the horizontal thread spool carrier 5. Place the second spool of thread onto the vertical thread spool carrier.
Threading the twin needles C
Each of the two needles must be threaded separately.
1. Threading the needle on the right
Proceed in the same manner as threading single needles using the thread from the spool on the additional thread spool carrier b. Draw the thread through the thread guide on the right.
2. Threading the needle on the left
Thread the needle on the left in the same way as the needle on the right, however, draw the thread through the guide on the left before you draw it through the eye of the left-hand needle.
Inserting the lower thread
The spool of the lower thread is inserted in the same way as with a single needle (see Chapter Threading the sewing silk and preparation).
Ensure that the thread is threaded from right to left through the eye of the feeding lever j. When you thread the needle with the upper thread make sure that the needle is threaded from the front to the back and that the loose end of the thread has a length of at least 15 cm (6) from the needle eye. Use the threading aid G to thread the needle. Insert the loop of the threading aid G through the needle eye from the rear. Pass the tread through the loop then carefully pull the threading aid G back. The thread will be automatically drawn through the eye of the needle.

Tensioning the thread

The tension of the thread has a fundamental influence on the quality of the stitches. It may be necessary to adjust the thread tension if you change the thread or sew a different kind of fabric.
Before you actually commence sewing the fabric you should carry out a sewing test using a remnant of the same fabric, adjusting the thread tension if necessary until a satisfactory test result is achieved. Possible fine adjustments of the thread tension and their consequences: Upper thread tension is too high: Small loops are visible on the top surface of the fabric. Reduce the tension of the upper thread by turning the upper thread tension selector 2 to a lower value.
Retrieving the lower thread
1. 2. Bring both the sewing foot s and the needle into the higest possible position. Grasp the end of the upper thread with your left hand and then turn the handwheel 0 (in an anti-clockwise direction), until the needle has moved down and then up into the highest position. Normally the upper thread will then catch the lower thread in a loop and bring it to the top. Pull the end of the upper thread towards you and the spool will be released in a large loop of the lower thread. Draw approximately 15 cm (6) of both threads from the spool respectively from the bobbin. Lay the upper thread upside down between the toes of the sewing foot s, then draw it in the direction of the appliance rear. Lay the lower thread, just like the upper thread, but slanting rear right in the direction of the appliance rear.

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Upper thread tension is too low: Loops are visible on the bottom of the fabric. Increase the tension of the upper thread by turning the upper thread tension selector 2 to a higher value.
Correct thread tension The correct thread tension is important, as a tension that is too high or too low will lead to a weakening in the strength of the seam and often also results in a rippling of the fabric surface in the vicinity of the seam. Needle sizes
To fabrics being sewn fine tricot fabrics Lace Fine linen Silk Organza Chiffon Voile Taffeta Synthetic fabrics Silk Batiste

Strength of thread

Very fine fabrics
Cotton thread: 80 Man-made thread fine, mercerised cotton
The lower thread tension has been preset in the factory, ensuring that it is appropriate for general use. Hence, no changes in the setting are required for the majority of sewing tasks. However, if you are sewing fine fabrics with thin thread, it could happen that the correct adjustment of the thread tension will not adjust automatically by means of the setting of the upper thread tension. Hence the user can readjust the lower thread tension in accordance with the procedure described below. Lower thread tension is too low Small loops are visible on the surface of the fabric. First reduce the (upper-) thread tension, setting a lower value by turning the upper thread tension selector 2. If this does not lead to satisfac-tory sewing results, even when the upper thread tension is set at the lowest possible value, change the upper thread tension on the spool as described below. Medium heavy fabrics

Lightweight fabrics

Cotton: 6080 Sewing silk: A Man-made thread mercerised: 50
Cotton Gingham Poplin 14 Percale (as is Pique Cotton: 5060 sup Satin Sewing silk: A plied Velvet Man-made thread with the light woolen fabrics mercerised: 5060 machi Fine corduroy ne) Suiting materials Linen Muslin Denim Gabardine Tweed Corduroy Canvas Sailcloth
Spool Increase the tension of the lower thread at the bobbin, using a small screwdriver Y to turn the screw on the pressure tab of the bobbin case in a clockwise direction. The screw should not be turned by more than one complete rotation. Do not forget to turn the screw back into its original position before you recommence sewing!
Cotton thread: 4050 Mercerised: high-strength

Knitted fabrics

Simple weave Double weave Jersey Tricot fabric
14 (with Cotton polyester tricot thread border)
1. 2. Select the right needle size and thread strength according to the table above! As a rule use the same thread strength for the upper thread (spool of thread) and the lower thread (bobbin)!

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Straight stitch
The following types of stitches are defined as straight stitches: Type of stitch No. 2 (with needle positioned on the left) 3 (with central needle position) 21 (triple stretch stitch) firmly fixed at 2.5 Stitch length
Removing the fabric from the machine
1. 2. 3. 4. 14 Stop the machine. Bring the needle into the highest possible position. Raise the sewing foot s and carefully pull the sewn product out towards the left. Cut the two threads (Upper and lower threads) with the thread cutter on the rear of the foot bar.

Take note

The thread cutter is the indentation at the rear of the foot bar. Lay the thread that is to be cut into the indentation, hold the thread firmly to left and right of the foot bar and then draw it downwards.

Commencing sewing

1. Position the adjustment wheel of the stitch type selector w such that the desired number appears in the stitch-type window q. According to the desired type of straight stitch you must turn the wheel to 2, 3 or 21. Bring the needle into the highest possible position and raise the sewing foot s. If nothing has happened: retrieve the lower thread by turning the handwheel 0 in an anticlockwise direction and drawing the upper and lower thread together behind the foot. Lay the fabric, respectively layers of fabrics, to be sewn on the sewing table under the raised sewing foot s, in such a manner that the needle is located approximately 1 cm (3/8) from the fabric edge and above the start of the seam. Lower the sewing foot s. In order to finish off the end of the seam, by sewing backwards, press the sewing direction reverse switch t as far as it will go and activate the foot pedal l slightly. Backward sewing is used to combine two seams as well as to reinforce seams. After finishing sewing backwards change over to sewing in a forward direction, releasing the direction changeover switch t and briefly taking your foot from the foot pedal l, then pressing the foot pedal down once again l. 5.

This type of stitch is used to sew two pieces of material together if there are no special requirements in relation to the elasticity of the seams, e. g. for patchwork. Set the stitch type selector w at number 11.

Scallop stitch

Type of stitch No. 12 (Scallop stitch) Stitch length F-1.5
Remove the attached paper after finishing the sewing and close the seam by knotting the two threads at the beginning and the end of the seam on the underside of the material.

Finishing edges

Type of stitch No. 16 (Arrow point stitch) 18 (Blind hem (open) overlock stitch) 19 (Elastic overlock stitch) These stitches are used to finish off pieces of fabric to prevent them from fraying and to hem them in one process. The arrow point stitch is ideal for finishing off a bed cover or table cloth, for example, whereas the elastic overlock stitch and the slanted overedge stitch is especially suitable for the finishing off of stretchable materials. 1. 2. Set the stitch type selector w at 16, 18 or 19. Position the fabric under the sewing foot s so that the line of the seam (the arrow points of the seam pattern formation) are positioned ca. 3 mm (1/8) left of the centre of the sewing foot s. This type of stitch is most effective when the seam line is approximately 6 mm (1/4) from the edge of the material, because the stitching movement extending to the right (right zigzag points) grasps the fabric edge accurately and thus protects it from fraying. fixed at 2.5 in the factory Stitch length
The machine can create a scallop stitch automatically, which may be used to decorate the edges of the items you have sewn. 1. 2. 3. Set the stitch type selector w at number 12. Sew the scallop stich closely along the edge of the material. If you wish, you can trim the outer curve of the pattern you have sewn after you have finished the edge. Make sure you do not cut through the stitches.
Additional decorative stitches
Type of stitch No. 13 (Random zigzag stitch) F-(Pearl stitch) Both types of stitch may be used for the creation of (edge) decorative seams as well as smocking. Set the stitch type selector w at number 13 or 14. Stitch length

Fishbone stitch

1. 2. It is advisable to practice the sewing of buttonholes on a remnant of material before you actually attempt this on a garment. If you want to sew buttonholes in soft and yielding materials, it is adviseable to line the fabric with a stabilising material.
With appropriate practice and suitable settings of the machine, the automatic production of buttonholes in one working process is a simple method that delivers reliable results. 1. 2. 3. 4. Mark the position of the buttonhole on the material with tailors chalk. Attach the buttonhole sewing foot N (see Chapter Changing the sewing foot) and set the stitch type selector w at 1. Retrieve the lower thread. Lower the sewing foot, so that the markings on the buttonhole foot N align with the chalk markings on the material as shown in the following diagram. The front closure of the buttonhole is sewn first. 3. With the thread cutter J cut out the buttonhole, slicing through the material in the centre between the two buttonhole seams. Proceed carefully in order to avoid cutting the stitches themselves.

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Fine adjustment during sewing buttonholes
Should the buttonhole seams sewn on both sides of the buttonhole not be uniform in appearance, a fine adjustment can be undertaken as per the following method: 1. Set the stitch type selector w at F and, as a test, sew the left-hand buttonhole seam on a remant of the same material. Observe the material feed during the process. Should the sewn left-hand buttonhole seam be too coarse or too fine, appropriately adjust the material feed using the stitch length selector 6.

Sewing on buttons

Type of stitch No. 4, 5 or 6 1. Stitch length user defined Sewing foot Buttonhole foot Miscellaneous Darning plate
Measure the distance between the holes of the button and select the suitable type of stitch with the stitch type selector w in accordance with the following table: hole distance of the button Type of stitch No. 6
q left-hand buttonhole seam w Stitch length e shorter r longer t result
1.5 mm (1/16) 3.5 mm (6/64) 5 mm (13/64)
4. 3. When the sewing test has produced satisfactory results for the lefthand buttonhole seam with regard to the feed, sew a right-hand buttonhole seam and continue to observe the feed. If the buttonhole seam on the right is too fine or too coarse in comparison with the left, adjust the button hole fine adjustment screw at the rear of the machine housing as described below:
Replace the sewing foot s with the sewing foot for sewing on buttons B (see Chapter Exchanging the sewing foot). Position the darning plate v on the stitch plate a of the machine. The lateral pins of the darning plate v should slide into the holes in the darning plate a. Position the button to be sewn on between the foot B and the material and check that the needle will pierce the left-hand hole in the button without hitting the button itself. If this is not guaranteed return to step 1.

Sew approximately 10 stitches at a low speed. Remove the material from the machine. Cut off the upper and lower threads and knot the two threads underneath.
When the buttonhole seam on the right appears to be too coarse, adjust the screw using the supplied large screwdriver X in the direction marked ; When the right buttonhole seam is too fine, adjust the screw using the screwdriver X in the direction marked +. By means of the described method of adjustment it is possible to obtain a uniform appearance of the two buttonhole seams.

Sewing in zippers

Type of stitch No. 3 Stitch length/mm 23 Sewing foot Zipper foot
y Stitch length setting wheel u Fine adjustment screw for sewing buttonholes i Right-hand buttonhole seam o Result
The zipper foot M is employed to sew in different types of zippers and can be positioned on the right or on the left of the needle without any difficulties. If you want to sew in the right side of the zipper, fix the foot shaft at the left side of the securing pin at the zipper M; If you want to sew in the left side of the zipper, fix the shaft at the right side of the securing pin. 1. 2. 3. 4. Set the stitch type selector w at 3 and the stitch length 6 at a value between 2 and 3. Lower the sewing foot s using the lifting lever g and allow the shaft to snap on the right or left part of the securing pin on the zipper foot M. Fold over approximately 2 cm (3/4) of the material and lay the zipper under the material. Lower the needle accordingly in the right or the left notch for the needle in the zipper foot M.

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Now sew the both sides of the zipper in place along the zipper carrier web from the lower to the upper edge with the zipper foot M. The needle should thus always pierce the side of the foot facing the teeth-row resp. spiral of the zipper, in order to achieve the best possible results. To changeover to sewing the opposite half of the zipper, after sewing release the one side of the zipper foot M by activating the lever at the rear of the spindle from the foot shaft and fix it, aligned correspondingly, over the other part of the fastening pin on the shaft and continue sewing with the other indentation.

Appliques

Type of stitch No. 4, 5 or 6 Stitch length F-2
An applique is created by sewing a piece of material, cut into a certain shape, contrasting in colour or structure, to a garment or to another creation for decorative purposes. 1. 2. Tack the applique with the desired contour onto the designated position by hand. Carefully sew round the contour of the applique in zigzag stitch (Stitch type No. 4, 5 or 6) in short stitch lengths. If necessary trim the applique outside the seam Remove the tacking stitches by pulling out the tacking thread if necessary.

Solution

Thread the upper thread correctly! Loosen the upper thread tension a little! Thread the upper thread once again! Insert the spool of thread once again! Change the needle! Check the combination needle size/strength of thread! Thread the upper thread once again! Insert the spool correctly once again! Loosen the low thread tension a little! Insert the low thread correctly once again! Insert the needle correctly! Check the combination, needle size/strength of thread! Clean the sewing machine! Thread the sewing garn correctly!

Upper thread is breaking

Lower thread is breaking

Stitches are omitted

Loops and tangles in the seam
Wrong adjustment of the thread tension.
Readjust the thread tension!
Material is rippled in the vicinity of the seam
Thread tension is too tight on the rippled side. Thread run on the machine is wrong. An unsuitable needle has been used. Inappropriate combination of needle size/strength of thread. Stitch length selector 6 set at no feed. Inappropriate combination needle size/ strength of thread. Thread is matted (tangled). The darning plate is installed on top of the stitch plate a. Needle inserted incorrectly. Inappropriate combination of needle size/strength of thread. You are pulling the fabric.
Readjust the thread tension! Check the thread run and thread the needle correctly! Use the matching needle! Check the combination needle size/strength of thread! Set the stitch length selector 6 at the required stitch length (feed)! Check the combination needle size/strength of thread! Thread the upper thread once again! Remove the darning plate! Insert the needle correctly! Check the combination needle size/strength of thread! Only allow the material to be tranported by the feed dog!
The material is not being fed correctly

Needle keeps breaking

Machine is running noisily or slowly
Dust adhering to the stitch plate a on the bottom. Machine is inadequately lubricated.
Clean the sewing machine! Lubricate the sewing machine!