Pfaff coverlock 4.0 Owner's Manual
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Pfaff coverlock 4.0 Owner's Manual

Pfaff coverlock 4.0 Owner's Manual

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coverlock
4.0
TM
O w n e r ' s M a n u a l

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  • Page 1 coverlock O w n e r ’ s M a n u a l...

  • Page 2: Important Safety Instructions

    This household sewing machine is designed to comply with IEC/EN 60335-2-28 and UL1594. IMPORTANT SAFETY INSTRUCTIONS When using an electrical appliance, basic safety precautions should always be followed, including the following: Read all instructions before using this household sewing machine. Keep the instructions in a suit- able place close to the machine.
  • Page 3 • Do not use the machine if it is wet. • If the LED lamp is damaged or broken, it must be replaced by the manufacturer or its service • If the supply cord connected with the foot control is damaged, it must be replaced by the manu- •...

  • Page 5: Table Of Contents

    OPERATING INSTRUCTIONS INTRODUCTION Parts of the machine ..............4 Load Stitch ..................25 Accessories ..................5 Settings menu ................26 Display contrast ..................26 Optional accessories from INSPIRA™ ........6 Sound ......................26 Language ....................26 PREPARATIONS Calibrate touch screen ................ 26 Connecting the foot control and the power supply ..

  • Page 6: Introduction

    Parts of the machine 1. Telescopic thread stand 2. Handle 3. Touch screen 4. Load stitch button 6. Clear button 8. Info button 10. Flat bed extension 11. Cutter cover A 19. Presser foot pressure adjusting dial 12. Front cover 20.

  • Page 7: Accessories

    26. Moveable upper cutter 29. Chainstitch/Coverstitch looper 30. Lower looper 31. Upper looper 32. 2-thread converter 33. Upper looper clutch 33. Chain/coverstitch thread guide Accessories Accessories are contained in the accessory box. 1. Accessory box 6. Oiler 7. Allen key 11.

  • Page 8: Optional Accessories From Inspira

    Optional accessories from INSPIRA™ Optional presser feet specially prepared for this machine are available at your PFAFF® dealer. The snap-on type presser foot used on this machine allows easy removal and replacement. Elastic Foot 620 08 65-96 Blindhem & Lace Foot 620 08 69-96 The Blindhem Foot is perfect for sewing invisible hems and for applying lace.

  • Page 9: Preparations

    Connecting the foot control and the the foot control. 1. Pull out the cord from the foot control. Connect the foot control to the front socket on the bottom right side of 2. Connect the power cord to the rear socket on the the wall socket.

  • Page 10: Setting Up The Telescopic Thread Stand

    Setting up the telescopic thread stand Extend the telescopic thread stand to its full height, then turn until it clicks into place. Place the thread spools over the cone holders on the spool pin. If the machine is already threaded, straighten the threads to prevent tangling.

  • Page 11: Changing The Presser Foot

    Changing the presser foot Turn off the main power switch and unplug the machine. • Raise the presser foot. • Turn the handwheel toward you until the needles are at the highest position. • Push the red button on the back of the presser foot ankle to release the presser foot.

  • Page 12: Movable Upper Cutter

    Movable upper cutter Disengaging, position B • Turn the handwheel toward you until the upper cutter is raised to the highest position. • Open the front cover. • Pull the movable cutter knob to the right as far as it will •...

  • Page 13: Upper Looper

    Upper looper Disengaging For coverstitch and chaintitch sewing the upper looper needs to be disengaged. • Turn the handwheel until the upper looper is in its lowest position. • Push the clutch lever to the right and back until position B is visible from the front. Engaging •...

  • Page 14: Threading

    General threading information followed by the lower looper and then the needles from right to left. Re-threading if a thread breaks If the two loopers are not threaded in the correct order they will not create a stitch. If a looper thread breaks always do the following: 2.

  • Page 15: Threading The Upper Looper (Red)

    Threading the upper looper (red) • Raise the presser foot to release tension discs. • Pass the thread from back to front through the thread • Thread the top cover thread guide by pulling the thread towards the right until it slips under the guide. Then pull the thread along the right side of the button •...

  • Page 16: Threading The Lower Looper (Yellow)

    • Raise the presser foot to release tension discs. • Pass the thread from back to front through the thread • Thread the top cover thread guide by pulling the thread towards the right until it slips under the guide. Then pull the thread along the right side of the button •...

  • Page 17: Threading Chainstitch Looper (Purple)

    Threading chainstitch looper (purple) • Raise the presser foot to release tension discs. • Pass the thread from back to front through the thread • Thread the top cover thread guide by pulling the thread towards the right until it slips under the guide. Then pull the thread along the right side of the button •...

  • Page 18: Threading The Right Needle

    Threading the right needle (green, B on needle clamp) • Raise the presser foot to release tension discs. • Pass the thread from back to front through the thread • Thread the top cover thread guide by pulling the thread towards the right until it slips under the guide. Then pull the thread along the right side of the button •...

  • Page 19: Threading The Left Needle

    Threading the left needle (blue, A on needle clamp) • Raise the presser foot to release tension discs. • Pass the thread from back to front through the thread • Thread the top cover thread guide by pulling the thread towards the right until it slips under the guide. Then pull the thread along the right side of the button •...

  • Page 20: Threading The Chainstitch Needle

    Threading the chainstitch needle (blue, D on needle clamp) • Raise the presser foot to release tension discs. • Pass the thread from back to front through the thread • Thread the top cover thread guide by pulling the thread towards the right until it slips under the guide. Then pull the thread along the right side of the button •...

  • Page 21: Threading The Coverstitch Needles

    Threading the coverstitch needles Threading the right coverstitch needle (red, E on the needle clamp) • Raise the presser foot to release tension discs. • Pass the thread from back to front through the thread • Thread the top cover thread guide by pulling the thread towards the right until it slips under the guide.

  • Page 22: Threading The Middle Coverstitch/Chainstitch Needle

    Threading the middle coverstitch/chainstitch needle (green, D on the needle clamp) • Raise the presser foot to release tension discs. • Pass the thread from back to front through the thread • Thread the top cover thread guide by pulling the thread towards the right until it slips under the guide.

  • Page 23: Threading The Coverstitch Left Needle

    Threading the coverstitch left needle (blue, C on the needle clamp) • Raise the presser foot to release tension discs. • Pass the thread from back to front through the thread • Thread the top cover thread guide by pulling the thread towards the right until it slips under the guide.

  • Page 24: Needle Threader

    • Cut the thread in use near the spool, behind the guides on the telescopic thread stand. PFAFF coverlock 4.0 • Remove the thread spool and place the new thread on the spool pin. • Tie the end of the new thread to the end of the old german design thread.

  • Page 25: Touch Screen

    Touch screen overview you turn on the machine. Your selected stitch will be all the basic information you need to start sewing. This is also the menu where you adjust the settings of your stitch. When turning on the machine, the last sewn stitch is selected.

  • Page 26: On-Screen Stitch Adjustments

    Your machine will set the best settings for each selected stitch. You can make your own adjustments on the selected stitch. The setting changes only affect the selected stitch. Your changed settings will be reset to default when selecting another stitch. The changed settings are not automatically saved when turning your machine off.

  • Page 27: Save Stitch

    Save Stitch free position, using the arrows. Any box without a stitch is a free position and can be used to save your new stitch. The stitch information appears in the selected position. Any box with a stitch is an occupied position. You can you want to overwrite the previously stored stitch.

  • Page 28: Settings Menu

    When a stitch is selected, a pop-up message with detailed Settings menu button again to close the settings menu and save the changes in the machine memory. The changes in settings are saved after turning off the machine. Change the contrast on the touch screen to suit your needs by touching - or +.

  • Page 29: Pop-Ups

    Pop-ups Front cover open As a safety precaution you cannot sew with the front cover open. The pop-up will close when the front cover is closed. Presser foot is up You cannot start sewing with the presser foot up. The pop-up will close when the presser foot is lowered.

  • Page 30: Stitches & Sewing Techniques

    Stitch overview The settings shown in this table are our recommendations based on normal conditions. The correct tension is set automatically when selecting a stitch. It may be necessary to adjust the thread tension according to the stitch, type of fabric and thread you are using. For best results make tension adjustments in small steps of no greater than half a number at a time.
  • Page 31 Threading path Stitch For joining with reinforced stitch and overcasting in one step. B and • • • • 3-thread overlock, wide For sewing two layers of stretchy fabric or overcasting a single layer of light to medium fabric. Use heavier threads in the loopers to create •...
  • Page 32 Threading path Stitch For sewing stretchy fabrics together with a decorative effect either with • • • side. Create varying effects by threading the upper looper with decorative thread. Read more on page 35. 3-thread wrapped overlock, wide fabrics. Adjust the differential feed •...
  • Page 33 Threading path Stitch 2-thread overlock, wide For overcasting a single layer of light to medium weight fabrics. • • 2-thread overlock, narrow For overcasting a single layer of light to medium weight fabrics. • • 2-thread narrow edge* Use for edging lightweight fabrics. page 34.
  • Page 34 Threading path Stitch 2-thread rolled edge* For edging lightweight fabrics. It the lower looper with a decorative • • thread, such as 40 weight rayon for a beautiful satin edge. Converter Coverstitch, triple For hems on stretch fabrics and for decorative effects on all kind of fabrics.

  • Page 35: Start Sewing

    Start sewing Pin Placement When securing the fabric pieces using pins, insert straight pins to the left of the presser foot. The pins will be easy to remove and are away from the cutters. cutting edge of the cutters. • When the machine is completely threaded, close the front cover and bring all of the threads over the stitch plate and slightly to the left under the presser foot.

  • Page 36: Rolled Edge Sewing

    Rolled edge sewing The rolled edge stitch is appropriate for lightweight fabrics such as lawn, voil, organdy, crepe, etc. The rolled edge is achieved by adjusting the thread tension to make the fabric edge roll under the fabric while overlocking. Adjust the regular thread.

  • Page 37: Flatlock Sewing

    Flatlock sewing look, or with the right sides together, to create a ladder stitch. • Use the left or the right needle. • Engage the 2-thread converter Thread the lower and upper • Place the wrong sides of the two pieces of fabric together to sew a decorative stitch on the right side of the garment.

  • Page 38: Chainstitch Sewing

    Chainstitch sewing The chainstitch is sewn with two threads, one needle and one looper. Normally, the machine trims the fabric edge while the seam is being sewn. However, a chainstitch seam can be placed at a desired distance from edge of fabric by putting Machine set up the distance, in cm and inches, from coverstitch middle needle.

  • Page 39: Lowering The Needle(S)

    Lowering the needle(s) When you stop sewing, the machine always stops with the position is useful to hold your fabric in place when making adjustments or when turning the fabric to change direction when chainstitch sewing. A) Left needle B) Right needle C) Chainstitch needle 6 mm...

  • Page 40: Differential Feed Adjustment

    The differential feed system consists of two sets of feed teeth arranged one behind the other. Both feed teeth work independently of each other to give perfect results when sewing on speciality fabrics. When the amount of feed by the front feed teeth is changed in relation to the feed by Use the differential feed to prevent stretching of knit fabrics and puckering of lightweight fabrics.
  • Page 41 • Type and thickness of the fabric • Needle size 2-thread overlock When the lower looper thread lies on the underside of the fabric When the needle thread tension is too loose 2-thread overlock, wrap When the lower looper thread tension is too tight or needle thread tension is too loose When the lower looper thread tension is too loose When the lower looper thread tension is too loose...
  • Page 42 Chainstitch When the chainstitch needle thread tension is too loose Coverstitch When the coverstitch looper thread is too loose When the coverstitch left needle thread tension is too Increase the coverstitch left needle thread tension loose When the coverstitch middle needle thread tension is too Increase the coverstitch middle needle thread tension loose When the coverstitch right needle thread tension is too...

  • Page 43: Maintenance

    Machine maintenance than a conventional machine mainly for two reasons: • A lot of lint is produced when the cutters are cutting the the fabric. • An overlock runs at a very high speed and needs to be Cleaning • Open the front cover and remove all the lint using the lint brush.

  • Page 44: Storage

    Storage When the machine is not in use, be sure to keep it unplugged. Cover the machine with the dust cover to protect it from Servicing Trouble shooting Problem Solution Fabric does not feed well - Lengthen stitch length. - Increase presser foot pressure for heavyweight fabric. - Decrease presser foot pressure for lightweight fabric.
  • Page 45 Sewing speed 1100 stitches/min Stitch length 1.0 - 4.0 mm Differential feed ratio 0.6 - 2.0 Overlock stitch width Left needle: 5 - 7 mm Right needle: 3 - 5 mm Coverstitch: 3 - 6 mm Presser foot rise 4.5 mm Needles INSPIRA overlock needles - system ELx705...

  • Page 47: Intellectual Property

    and the assortment of accessories without prior notice, or user and the product. Please note that on disposal, this product must be safely recycled in accordance with relevant National legislation relating to electrical/electronic products. Do not dispose of electrical appliances as unsorted muncipal waste, use separate collection facilities.
  • Page 48 www.pfaff.com...

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