elna 664 | Instruction Manual |
IMPORTANT SAFETY INSTRUCTIONS This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with this overlock machine.
Do’s and Don’ts 1. Always be aware of the up-and-down movement of the needle and do not turn your attention away from the machine while it is running. 2. When leaving the sewing machine unattended, the main switch of the machine must be switched off or the plug must be removed from the socket-outlet. 3. When servicing the sewing machine, or when removing covers or changing lamps, the machine must be disconnected from the power supply by removing the plug from the socket-outlet. 4.
TABLE OF CONTENTS PREPARATION Names of Parts ............................................................................................................................... 4 Standard Accessories ..................................................................................................................... 5 Connecting the Machine to the Power Supply........................................................................................ 6 Controlling Sewing Speed.......................................
PREPARATION 4 Names of Parts 15 16 3 17 1 Left needle thread tension dial 2 Right needle thread tension dial 14 3 Upper looper thread tension dial 4 Lower looper thread tension dial 2 13 1 5 Side cover 6 Looper cover 7 Handwheel 11 10 9 Machine socket 10 Differential feed dial 12 Spool stand 8 13 Spool holder 7 6 8 Power switch 11 Stitch length dial 9 5 12 14 Spool pin 15 Thread guide bar 16 Thread guide 17 Pressure adjusting dial 19 20 21 18 Needle plate setting knob 19 Presser fo
2 1 5 9 6 Standard Accessories 4 3 7 1 2 3 4 5 6 7 8 9 10 8 10 5 Screwdriver (Large) Screwdriver (Small) Tweezers Set of needles No.11, No.
Connecting the Machine to the Power Supply 5 Turn off the power switch, and connect the machine plug to the machine socket. 4 3 Connect the power supply plug to your power supply. 2 Turn on the power switch. 1 2 3 4 Power switch Machine plug Machine socket Power supply plug 5 Power supply 6 Speed controller 1 1 6 Controlling Sewing Speed Sewing speed can be varied by the speed controller. The harder you press on the controller, the faster the machine runs.
How to Turn the Handwheel Always turn the handwheel toward you (Counterclockwise). 1 Handwheel 1 Opening and Closing the Side Cover 1 To open: Push the side cover to the left. To close: Push the side cover to the right. 1 Side cover Opening and Closing the Looper Cover To open: (A) While pushing with the thumb to the right as far as it will go, pull the looper cover toward you. (B) 1 To close: (B) Lift the looper cover and push it against the machine.
Raising or Lowering the Presser Foot By raising or lowering the presser foot lifter, the presser foot goes up or down. * While in operation, keep the presser foot lowered except when threading the machine or test running without threads. Thread tension will be released when the presser foot lifter is raised. 1 2 1 Presser foot 2 Presser foot lifter Removing the Presser Foot 2 1 1. Turn off the power switch and unplug the machine. 2. Raise the needle and the presser foot. 4 3.
The Position of Thread Guide Bar 1 Pull the thread guide bar up as far as it will go. Turn the thread guide bar so that the thread guides are right above the spool pins. 2 1 2 3 4 3 Thread guide bar Thread guide Stoppers Spool pin 4 * Make sure the two stoppers on the thread guide shaft, as shown, are set in at the correct position. Attaching the Spool Holder Cap and Net 3 1 1. When you use a small thread spool, pull out the spool holder from the spool pin.
Changing Needles Turn off the power switch and unplug the machine. 1 Raise the needle to its highest position. Then loosen the left or right needle clamp screw for the needle you are going to remove. 2 1 Needle clamp screw on the left 2 Needle clamp screw on the right * Use HA-1SP #14 Needle or #11.
Stitch Definition 2 2 2 2 3 3 3 3 4 4 4 4 z Safety 4 Thread An overlock stitch that has 2 needle threads, a lower and upper looper thread is a safety 4 thread. The stitch stretches without breaking. The second needle thread reinforces the durability and strength of the stitch, but the stitch retains its elasticity. Common Uses 1. Excellent for sewing knit garments. 2. Appropriate for loose fitting woven garments.
2 2 2 2 3 3 3 3 4 4 4 4 b 3 Thread The same characteristics as the 3 Thread Wide. This narrower version is suitable for light to medium weight fabrics. Common Uses 1. Construction method for lingerie. 2. Edge finish on single layer of fabric. 3 2 2 2 4 3 3 3 5 4 4 4 3 2 2 6 4 3 3 7 5 4 4 8 n Narrow Hem 3 Three threads form a balanced stitch that is a great narrow edge finish. Common Uses 1. Hemming method for scarves, napkins and ruffles. 2.
Adjustment of Stitch Length 1 To select stitch length, turn the dial. The larger the number, the longer the stitch. 2 The stitch length can be adjusted from 1 to 5 mm. Position “R” is for rolled and narrow hemmings. 1 Stitch length dial 2 Setting mark Adjustment of Differential Feed Ratio The differential feed ratio can be altered by turning the dial. 1 2 The number on the dial indicates the ratio between the main and the sub feed motion. 1.0 indicates the neutral position.
Adjustment of Needle Plate Setting Knob (Changing to Standard Serging or Rolled Hemming) The needle plate setting knob is connected with the chaining finger. 1 The chaining finger will slide back and forth when you set the needle plate setting knob at "S" or "R". 1. Turn off the power switch and unplug the machine. 2. Open the looper cover and side cover. Deactivate the upper knife (refer to page 15). 2 3.
To Deactivate the Upper Knife 1. Turn off the power switch and unplug the machine. 1 2. Open the looper cover and side cover. 3. Turn the upper knife release knob toward you while pushing it to the right, then guide the hole on the upper knife to the pin to lock the upper knife in the down position. 4. Turn the handwheel to check if the upper knife is deactivated. 5. Close the looper cover and side cover. 1 Upper knife release knob 2 Upper Knife 2 To Activate the Upper Knife 1 1.
Adjustment of Cutting Width 1 When cutting width is too narrow or too wide against seam width, adjust it as follows. Open the side cover and deactivste the upper knife. Turn the cutting width adjusting dial to move the lower knife to the desired position. * The lower knife position can be set at 3–5 mm from the right needle position. 2 1 Cutting width adjusting dial 2 Lower knife 3 Guide line on the needle plate 2 3 (A) (A) When cutting width is too narrow.
Threading the Machine 5 3 2 1 The illustration shows the machine threaded with four threads. 4 6 1 2 3 4 5 6 7 Lower looper thread Upper looper thread Right needle thread Left needle thread Thread guide Thread guide Threading chart The machine is pre-threaded to make threading easier. Tie the end of a new thread to one of the pre-set threads, and pull it to draw the new thread through the machine, following the steps below. 7 * Turn off the power switch before threading the machine. 1.
• If one of the threads is broken, follow the re-threading procedure as follows: * Turn off the power switch and unplug the machine. 1. Raise the presser foot and pull the thread chain out to the back of the presser foot, and cut the chain to separate each of the threads. 1 Cut off the tangled threads. 1 1 2. Re-thread the thread which had been broken. 2 Example: Re-thread the lower looper thread. 2 Lower looper thread 2 3. Turn the handwheel toward you until the needle comes to its highest position.
Threading the Lower Looper Open the looper cover. 1 Place the spool of thread on the right side spool pin. * The points to thread for lower looper are marked in green. * A convenient threading chart is placed on the machine body inside the looper cover. 2 3 10 9 4 5 8 7 6 1.
4. Hook the thread on the corner A , and then pass the thread through the looper thread guide. A 5. Pass the thread through the changeable thread guide. 6. Pass the thread through the looper thread take-up lever (lower). 7. Pass the thread through the lower looper thread guide (1). 4 4 5 6 7 5 7 Looper thread guide Thread guide. Looper thread take-up lever (lower) Lower looper thread guide (1) 6 4, 5, 6, 7 8. Turn the handwheel toward you to move the lower looper to the right side.
10. Move the lower looper to its rightmost position by turning the handwheel, and draw the thread with a pair of tweezers through the hole on the lower looper 10 cm (4˝) or more. 10 * Make sure the needle threads are not tangled on the lower looper. 10 10 Lower looper a Needle thread b Lower looper thread b a NOTE: How to thread woolly nylon/polyester thread. a * The illustration at left shows one of the easiest ways to pass woolly nylon/polyester thread through the lower looper.
Threading the Upper Looper Place a spool of thread on the spool pin second from the right. 1 * The points to thread for upper looper are marked in yellow. * A convenient threading chart is placed on the machine body inside the looper cover. 2 3 6 7 4 5 1. Draw the thread through the thread guide second from the right from back to front: A * If the thread is coming out from the thread guide groove, pass the thread through the thread guide hole again as shown: B 1 1 Thread guide 1 (B) (A) 2.
4. Hook the thread on the corner B , and then pass the thread through the looper thread guide. B 4 Looper thread guide 4 4 5. Pass the thread through the looper thread take-up lever (upper). 5 Looper thread take-up lever (upper) 5 5 6. Pass the thread through upper looper thread guide. 7 7. Holding the end of the thread with a pair of tweezers, pass it through the hole on the upper looper. Pull 10 cm (4˝) or more of thread through the hole.
Threading the Needle on the Right Place the spool of thread on the spool pin second from the left. 1 * The points to thread for needle on the right are marked in red. * A convenient threading chart is placed on the machine body inside the looper cover. 2 7 8 5 6 3 4 9 10 1.
4. Pass the thread under the thread guides r and t from the right to the left. 7 4 5 8 5. Slip the thread into the slit y of the take-up lever cover from the bottom. Pull the thread up and hang it up over the third thread guide u. 6. Pull down the thread and slip it into the right notch of the guide plate i. 9 7. Pass the thread from the right to the back of the needle bar thread guide o. 6 10 5 7 4 8.
Threading the Needle with the Needle Threader IMPORTANT: When threading the needle, be sure to: – turn the power switch off. – lower the presser foot. q Hold the needle threader with the triangle mark facing up. Insert the thread into the Y-notch of the threader from the right. q Triangle mark w Y-notch w Slide the threader down along the needle while pushing it gently until the threader pin goes into the needle eye. Place the V-notch over the needle just above the needle eye.
Threading the Needle on the Left Place the spool of thread on the left side spool pin. 1 * The points to thread for needle on the left are marked in blue. * A convenient threading chart is placed on the machine body inside the looper cover. 2 6 7 8 3 4 5 9 1. Draw the thread through the thread guide on the left from back to front: A 1 * If the thread is coming out from the thread guide groove, pass the thread through the thread guide hole again as shown: B 1 Thread guide 1 (A) (B) 2 2.
4. Pass the thread under the thread guide r from the right to the left. 5. Slip the thread into the slit t of the take-up lever cover from the bottom. Pull the thread up and hang it up over the third thread guide y. 6 7 6. Pull down the thread and slip it into the left notch of the guide plate u. 4 8 7. Pass the tread from the right to the back of the needle bar thread guide i. 8.
TEST STITCHING Starting Sewing Insert the fabric under the toe of the foot (It is not necessary to raise the foot.) Turn the handwheel gently toward you a couple of turns and check the thread chain. Then start sewing slowly. The fabric will automatically be fed. Guide the fabric in the desired direction. * For heavyweight fabric, raise the presser foot and insert the fabric in front of the knife. Then lower the foot and start to sew while guiding the fabric. Finishing Sewing 1.
Securing Ends To avoid unravelling, it is necessary to leave a thread chain about 5 cm (2˝) long at the beginning and at the end of a seam. To secure the beginning and end of a seam, choose one of the following methods. B A At the beginning A. Separate the end of the threads and knot them. B. Thread the chain through a large eyed needle, and weave that chain through the overlock stitches on the fabric. C. Cut the chain at the edge of the fabric.
Thread Tension (4 threads) Balanced tension The illustration at left shows sewing results with balanced tension settings. However, adjusting the thread tension may be required depending upon the type of fabric and thread being used. 1 5 2 4 1 2 3 4 5 6 6 3 Thread tension adjustment * Set all four thread tension dials at “3”. Then sew, and check the thread tensions. 7 If the tension balance on the test piece is not satisfactory, you can adjust the thread tension with the thread tension dial.
Looper thread tension is out of balance (1) The illustration shows sewing results when the lower looper thread tension is too tight and/or upper looper thread tension is too loose. 1 6 2 2 2 2 3 3 3 3 4 4 4 4 Remedy: Loosen lower looper thread tension and/or tighten upper looper thread tension.
3-Thread Serging Using the needle on the right only (for narrow hem 3) When you use the right needle, the standard sewing width is 3.5 mm. The illustration on the left shows you how to thread the needle. Note: Tighten the needle clamp screw on the side that is not being used to prevent losing the screw. Using the needle on the left only (for 3-thread) When you use the left needle, the standard sewing width is 5.7 mm. The illustration at left shows you how to thread the needle.
Thread Tension (3 threads) Balanced tension The illustration at left shows sewing results with balanced tension settings. However, adjusting the thread tension may be required depending on the type of fabric and thread being used. 4 5 1 1 2 3 4 5 2 3 Thread tension adjustment * Set three thread tension dials at “3”. Then sew, and check the thread tensions. If the tension balance on the test piece is not satisfactory, you can adjust the thread tension with thread tension dial.
Thread Tension for Rolled Hemming Balanced tension 1 The illustration at left shows sewing results with balanced tension settings. Adjusting the thread tension may be required depending on the type of fabric and thread being used. 5 1 2 3 4 5 2 2 3 3 4 4 2 2 3 3 4 4 4 3 Wrong side of fabric Right side of fabric Right needle thread Upper looper thread Lower looper thread Thread tension adjustment 1. Set the tension dial as shown. 2. Sew and check the tensions. 3.
Rolled hemming Pull the end of thread chain to the back lightly in the beginning and end of sewing. 1 Fabric 2 Thread chain 2 1 For narrow hemming Balanced tension 1 The illustration at left shows sewing results with balanced tension settings.
CARE OF YOUR MACHINE CAUTION: Turn the power switch off and unplug the machine before cleaning or maintenance. Replacing the Upper Knife NOTE: The upper knife is sold separately. 1 4 2 To remove: 1. Turn off the power switch and unplug the machine. 2. Open the looper cover and side cover. 3. Turn the handwheel toward you until the upper knife reaches its highest position. 4. Remove the hexagonal bolt and the upper knife. 3 To attach: 1.
Replacing the Light Bulb 1. Turn off the power switch and unplug the machine. 1 2. Loosen the face plate set screw, and remove the face plate. 1 Face plate 2 Set screw 2 To remove: Push and twist to the left. To attach: Push and twist to the right. Reattach the face plate, and retighten the face plate set screw. 3 4 3 Light bulb 4 To remove 5 To attach 5 Note: * The machine is designed to use a 15 WATT maximum light bulb. * The light bulb will be HOT. Protect your fingers when you handle it.
Oiling the Machine Apply a few drops of fine quality sewing machine oil to the parts indicated with arrows. It is recommended to apply oil once a week in normal use, once in ten hours in continuous use. * Open the side cover and apply oil. * Open the looper cover and apply oil. Carrying the Machine Put your fingers into the hole of the rear arm as illustrated.
Troubleshooting Reference Cause Condition The fabric is not being fed smoothly. 1. The feed dog is packed with lint. 2. The presser foot has been raised. See page 37. Lower the presser foot. The needle breaks. 1. The needle is incorrectly inserted. 2. The needle is bent or blunt. 3. The fabric is pulled strongly. See page 10. Replace the needle. Pull the fabric lightly. The thread breaks. 1. 2. 3. 4. See pages 17-28. See pages 32-35. See page 10. Replace the needle. Skipped stitches 1.
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