coverlock TM 4.
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. DANGER - To reduce the risk of electric shock: • A sewing machine should never be left unattended when plugged in.
OPERATING INSTRUCTIONS INTRODUCTION Parts of the machine .................................................................... 4 Accessories ....................................................................................... 5 Optional accessories from INSPIRA™.................................... 6 PREPARATIONS Connecting the foot control and the power supply ........ 7 Setting up the spool stand ........................................................ 7 Setting up the telescopic thread stand ..........
Parts of the machine 2 4 1 3 5 coverlock 4.0 18 6 7 17 8 16 10 9 15 11 12 13 14 PFAFF 1. Telescopic thread stand german design 19 2. Handle 20 21 3. Touch screen 4. Load stitch button 5. Save stitch button coverlock 4.0 22 6. Clear button 7. Settings menu button 8. Info button 9. Stitch plate 10.Flat bed extension 25 23 24 11.Cutter cover A 19.Presser foot pressure adjusting dial 13.Power & light switch 20.Thread cutter 14.Foot control/electric power cord socket 21.
26.Moveable upper cutter 27 27.Stitch Ànger lever 28 29 31 30 28.Stationary lower cutter 32 29.Chainstitch/Coverstitch looper 30.Lower looper 31.Upper looper 32.2-thread converter 26 33.Upper looper clutch 33.Chain/coverstitch thread guide 34 Accessories 33 1 Accessories are contained in the accessory box. 1. Accessory box 2. Screwdriver 3. Knife blade (for the movable upper cutter) 4. Thread unreeling discs (5) 5. Thread spool nets (5) 2 3 4 5 6 7 8 6. Oiler 7. Allen key 8.
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 The Elastic Foot guides and stretches narrow elastic (¼-½”, 6-12mm) as you sew it to fabric. It is great for sewing for active wear, lingerie and other elastic insertion techniques.
Connecting the foot control and the power supply Among the accessories you will Ànd the power cord and the foot control. Note: Before plugging in the foot control, check to ensure that it is type ”FR5” (see underside of 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 the machine (A). 2. Connect the power cord to the rear socket on the bottom right side of the machine (B). Plug the cord into the wall socket.
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. Front cover coverlock 4.0 Open First push the cover to the right as far as it will go and then pull it downward toward you. Close 1 First pull the cover upward and then slide it to the left until it locks.
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. • Raise the presser foot to the extra lift position and the foot will come off. • Place the new foot with the pin right underneath the groove of the ankle while in the extra lift position. Lower the presser foot.
Movable upper cutter Disengaging, position B Turn off the main power switch and unplug the machine. A • Turn the handwheel toward you until the upper cutter is raised to the highest position. B B • Open the front cover. • Pull the movable cutter knob to the right as far as it will go. • Turn the knob toward you counter clockwise until the cutter clicks into the locked position B. Engaging, position A • Open the front cover and pull the movable cutter knob to the right as far as it will go.
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. B A • Push the clutch lever to the right and back until position B is visible from the front. Engaging • Turn the handwheel until the upper looper is in its lowest position. • Pull the clutch lever toward you until position A is visible from the front.
General threading information A color coded diagram is located inside the front cover for quick reference. Always start threading the loopers and then the needles from right to left. See the table below for recommendations on what needles and thread to use for different fabric weights. Tip: Your new machine is threaded to sew a standard overlock. Tie your own threads to these threads and carefully pull them through the machine, to easily thread your new overlock machine the Àrst time.
Threading the upper looper (red) 1 1 • Raise the presser foot to release tension discs. 2 • Pass the thread from back to front through the thread guide on the thread stand (1). • Thread the top cover thread guide by pulling the thread towards the left until it slips under the guide. Then pull the thread along the right side of the button as illustrated (2). coverl ock 4.0 3 • Lift up the handle and bring the thread under it.
Threading the lower looper (yellow) 1 1 • Raise the presser foot to release tension discs. 2 • Pass the thread from back to front through the thread guide on the thread stand (1). • Thread the top cover thread guide by pulling the thread towards the left until it slips under the guide. Then pull the thread along the right side of the button as illustrated (2). coverl ock 4.0 3 • Lift up the handle and bring the thread under it.
Threading chainstitch looper (purple) 1 1 • Raise the presser foot to release tension discs. • Pass the thread from back to front through the thread guide on the thread stand (1). 2 • Thread the top cover thread guide by pulling the thread towards the left until it slips under the guide. Then pull the thread along the right side of the button as illustrated (2). coverl ock 4.0 3 • Lift up the handle and bring the thread under it.
Threading the right needle 1 1 (green, B on needle clamp) 2 • Raise the presser foot to release tension discs. • Pass the thread from back to front through the thread guide on the thread stand (1). coverl ock • Thread the top cover thread guide by pulling the thread towards the left until it slips under the guide. Then pull the thread along the right side of the button as illustrated (2). • Lift up the handle and bring the thread under it.
Threading the left needle 1 1 (blue, A on needle clamp) 2 • Raise the presser foot to release tension discs. • Pass the thread from back to front through the thread guide on the thread stand (1). coverl ock • Thread the top cover thread guide by pulling the thread towards the left until it slips under the guide. Then pull the thread along the right side of the button as illustrated (2). • Lift up the handle and bring the thread under it.
Threading the chainstitch needle 1 1 (blue, D on needle clamp) 2 • Raise the presser foot to release tension discs. • Pass the thread from back to front through the thread guide on the thread stand (1). coverl ock • Thread the top cover thread guide by pulling the thread towards the left until it slips under the guide. Then pull the thread along the right side of the button as illustrated (2). • Lift up the handle and bring the thread under it.
Threading the coverstitch needles 1 1 Note: Thread the needles in to following order: right (E), middle (D), left (C) 2 Threading the right coverstitch needle (red, E on the needle clamp) coverl ock • Raise the presser foot to release tension discs. • Pass the thread from back to front through the thread guide on the thread stand (1). 4.0 3 • Thread the top cover thread guide by pulling the thread towards the left until it slips under the guide.
Threading the middle coverstitch/chainstitch needle (green, D on the needle clamp) 1 1 • Raise the presser foot to release tension discs. 2 • Pass the thread from back to front through the thread guide on the thread stand (1). • Thread the top cover thread guide by pulling the thread towards the left until it slips under the guide. Then pull the thread along the right side of the button as illustrated (2). coverl ock 3 • Lift up the handle and bring the thread under it.
Threading the coverstitch left needle (blue, C on the needle clamp) 1 1 2 • Raise the presser foot to release tension discs. • Pass the thread from back to front through the thread guide on the thread stand (1). coverl ock • Thread the top cover thread guide by pulling the thread towards the left until it slips under the guide. Then pull the thread along the right side of the button as illustrated (2). 3 • Lift up the handle and bring the thread under it.
Needle threader To make threading the needles easier, use the needle threader included with the accessories. • Turn the handwheel so the needles are in their highest position and lower the presser foot. Make sure one of the rectangular markings of the needle threader is pointing upwards. Place the thread from right to left in the notch on the tip of the needle threader. • Hold the needle threader against the needle.
Touch screen overview Sewing mode is the Àrst view on the graphic display after you turn on the machine. Your selected stitch will be shown in real size in the stitch Àeld. Here you will Ànd 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. 1. Stitch selection drop down menu 2. Stitch Àeld 3. Needle position recommendation 4. Cutting width recommendation 3 4 5 1 2 5.
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.
Save Stitch B To save the adjusted stitch, touch the Save Stitch button to open the Save Stitch view. You can save up to 30 different stitches. You can scroll through the list to Ànd a free position, using the arrows. Any box without a stitch is a free position and can be used to save your new stitch. Touch a free position and then OK (A) to save your stitch. The stitch information appears in the selected position. A Touch Cancel (B) to close the saving window and return to the Sewing mode view.
When a stitch is selected, a pop-up message with detailed information about the stitch appears. Touch OK (A) to load the selected stitch or Cancel (B) to return to the Load Stitch list. Settings menu Touch the Settings button to open the settings menu. Here you can adjust the machine settings. Touch the Settings 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.
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. Warning, overloaded, please wait If you are sewing on very heavy fabric or if the machine is blocked when sewing, the main motor can get overloaded and the machine will stop sewing.
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. Always test sew on a sample of your fabric before sewing on your garnment.
Stitch C D A E N/R B A/B Threading path B G R Y P 4-thread safety stitch, narrow For joining with reinforced stitch and overcasting in one step. Converter required. B and D 6.0 N Yes A • • A 6.0 N No A • B 6.0 N No A • • • B 6.0 R No A • • • A 6.0 N No A • • 5 3-thread overlock, wide 6 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 decorative braids.
Stitch C D A E N/R B A/B Threading path B G R Y 3-thread Áatlock stitch, narrow 10 For sewing stretchy fabrics together with a decorative effect either with the Áatlock side or the ladder stitch side. Create varying effects by threading the loopers with decorative thread. Read more on page 35. B 6.0 N No A A 6.0 N No A B 6.0 N No A A and B 6.0 N Yes A B 6.0 R No A • • • 3-thread wrapped overlock, wide For Ànishing edges on lightweight fabrics.
Stitch C D A E N/R B A/B Threading path B G R Y P 2-thread overlock, wide For overcasting a single layer of light to medium weight fabrics. Converter required. • • A 6.0 N Yes A B 6.0 N Yes A • • B 6.0 R Yes A • • A 6.0 N Yes A • • A 6.0 N Yes A • • B 6.0 N Yes A 15 2-thread overlock, narrow For overcasting a single layer of light to medium weight fabrics. Converter required. 16 2-thread narrow edge* Use for edging lightweight fabrics.
Stitch C D A E N/R B A/B Threading path B G R Y P 2-thread rolled edge* 21 For edging lightweight fabrics. It gives a nice Ànish on silky scarves, pillow rufÁes and napkins. Thread the looper with a decorative lightweight thread, such as 40 weight rayon for a beautiful satin edge. Converter required. Read more on page 34. B 6.
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. Sewing over pins will damage and might destroy the 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.
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 thread tension to change the degree of rolling. To sew a rolled edge you need to set the stitch Ànger lever to R.
Flatlock sewing A Áatlock stitch is made by sewing the seam and pulling the fabric apart to Áatten the seam. The Áatlock stitch can be used both as a decorative construction stitch, sewing two pieces together (Standard Áatlock stitch), or for embellishment on only one piece of fabric (Ornamental Áatlock stitch). There are two ways to sew a Áatlock stitch. Either with the wrong sides of the fabric together to create a decorative look, or with the right sides together, to create a ladder stitch.
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 the upper cutter in B position, disengaging the upper looper and installing coverstitch table B. (See page 10-11) Turn off the main power switch and unplug the machine. Machine set up • Disengage the movable upper cutter.
Stitch width adjustment The stitch width can be increased or decreased by changing the needle position or with the cutting width dial. A) Left needle B) Right needle 6 mm 4 mm C) Chainstitch needle 9 mm Width adjustment by changing needle position A) When only the left needle, or when both needles are used the stitch width is 6 mm. B) When only the right needle is used the stitch width is 4 mm. C) When using the chainstitch needle the stitch width is 9 mm.
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 the rear feed teeth it will “stretch” or “gather” the fabric. Use the differential feed to prevent stretching of knit fabrics and puckering of lightweight fabrics.
Thread tension Àne tuning Thread tension is automatically set when selecting a stitch but it may have to be Àne tuned depending on: • Type and thickness of the fabric • Needle size • Size, type and Àbre content of the thread See page 24 for how to adjust the thread tension settings. 2-thread overlock When the lower looper thread lies on the underside of the fabric Increase the looper thread tension (yellow), or decrease the needle thread tension (blue or green).
Chainstitch When the chainstitch needle thread tension is too loose Increase the needle thread tension (blue), or decrease the chainstitch looper thread tension (purple). Coverstitch When the coverstitch looper thread is too loose Increase the coverstitch looper thread tension (purple). When the coverstitch left needle thread tension is too loose Increase the coverstitch left needle thread tension (blue), or decrease the coverstitch looper thread tension (purple).
Machine maintenance An overlock machine requires more frequent 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 oiled frequently to lubricate the internal working parts. Cleaning Turn off the main power switch and unplug the machine. • Open the front cover and remove all the lint using the lint brush.
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 the dust. Store the machine, so it is not exposed to direct sunlight or humidity. Servicing If you have any questions regarding service and/or operation, contact your local PFAFF® dealer. Trouble shooting 42 Problem Solution Fabric does not feed well - Lengthen stitch length. - Increase presser foot pressure for heavyweight fabric.
Machine speciÀcations Sewing speed 1100 stitches/min Stitch length 1.0 - 4.0 mm Differential feed ratio 1:0.6 - 1:2 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 size: #14/90, #12/80 Number of needles 3, 2, 1 Number of threads 2, 3, 4,5 Machine dimensions Length Width Height Weight 404 mm 320 mm 326 mm 9.
413 19 69 - 26F • English • Inhouse • © 2011 KSIN Luxembourg II, S.ar.l. • All rights reserved • Printed in Sweden on environment friendly paper www.pfaff.
