INSTRUCTION MANUAL ITE DIFFERENTIAL MODEL 1500
IMPORTANT SAFETY INSTRUCTIONS When using an electrical appliance, basic safety precautions should always be folowed, including the following: Read all instructions before using (this sewing machine) DANGER To reduce the risk of electric shock: An apphance should never be left unattended when plugged in. Always unplug this appliance from theelectric outlet immediately after using and before cleaning. Always unplug before relamping, Replace bulb with same type rated 6 watts.
iNTRODUCTION THANK YOU FOR CHOOSING OUR OVERLOCK MACHINE This overlock machine can stitch dependable seams on all kinds of fabric, both light and heavy, including cotton, wool, rayon, tricot, jersey, and knits. You do not need a special table for this portable machine. We suggest that you read this instruction manual carefully before you start to operate the machine. FOR YOUR SAFETY LKeep your eyes on the needles when operating the overlock machine.
QEPNIENTS NAME OF MMN COMPONENTS SETTING UP YOUR MACHINE The position of thread pole Spool holders Spool caps Connecting the foot control Controlling sewing speed Safety switch Attaching the waste catcher ACCESSORIES USING THE MACHINE Handwheel Front cover Free arm LOOPER THREADING NEEDLE THREADING TEST SEWING ADJUSTING THREAD TENSIONS Needle thread tensions Looper thread tensions MACHINE ADJUSTMENT CHART CHANGING THE THREAD BUILTIN POCKET HANDLE ADJUSTMENT OF STITCH LENGTH CUTTING WIDTH CHANGING THE NEEDL
[MAME OF MAIN COMPONENTS Thread pole Thread guide plate Right needle thread tension dial Left needle thread tension dial Spool pin Spool holder Handwheel Machine socket Support bed Base Lower looper thread tension dial Upper looper thread tension dial Free arm release lever —3— Lower looper
S ETTD4 GUöiJA Positioning catches 7 MACHINE Set your Overlock machine on a sturdy flat I surface. [THE POSITION OF THREAD POLE] Pull up thread pole to its highest point before threading. Turn the thread pole so the thread guides come right above the spool pins. [CONE HOLDERS] Both industrial cones and domestic type thread spools can be used on this machine. For large diameter industrial cones use the cone holders with the large end at the top. For small diameter cones.
[CONNECTING THE FOOT CONTROL] then into main socket. Push toot control plug into the machine socket and both the machine power and sewing light. Turn on the power switch. This power switch controls Machine socket Power supply plug Power supply Foot control Control This Sewing Machine is designed to be used with a Matsushite Foot Contro Model 4C-31 6B, # 260Z the risk of electric * This appliance has a polarized plug (one blade widerthari the other).
[ATTACHING THE WASTE CATCHER] The waste catcher catches the cut-off fabnc as you sew, keeping your working area clean. Place the waste catcher between the machine and table.
[USING THE MACHINE. I [HANDWHEEL] Always turn handwheel toward you,i.e. the same direction as on a household sewing machine. [FRONTCOVER] To open front cover, slide the hollow to the right as tar as it will go then pull front cover toward you. The front cover won’t close while the tree arm is open. [FREE ARM] Open the tree arm for threading. Open the front cover first. While pushing the release lever, push the free arm down ward with your left hand.
I LOOPER THREADING or thread breakage may result. Correct threading is important otherwise uneven stitches panel inside the front cover. A convenient threading chart is placed on the front In addition, each thread guide is colored for threading indication. To help in threading, tweezers can be found in the accessory box. Threading must be carried out in the following sequence. Upper looper I.FIRST Lower looper 2.SECOND 3. THIRD 4.FINALLY Right needle Left needle l.Open the front cover and free arm. .
I NEEDLE THREADING 5.Turn the handwheel toward you until needles are fully raised. G.Pass the right and left needle threads as illustrated. Important: The thread must lie correctly between the two discs inside the tension dials. Pass through the needle eyes from front to back as illustrated. 7.Pull out the thread end about 10 cm(4”) long from the needle eyes. Raise the presser foot and place threads under it, then lower the pres er foot.
[tRIAL SEWING the When the overlock has been threaded for bre first time or re-threaded because of thread akage during sewing, start sewing in the following manner. Holding the end of threads between your left finger tips, turn the handwheel slowly toward you two or three times and check the thread chain. Place fabnc for trial sewing under the presser toot and start sewing slowly. The fabric will be automatically ted. Guide the fabric as you serge.
ADJUSTING THREAD TENSIONS Thread tensions will vary according to the type and thickness of both thread and fabric. Adjust the thread tension of the machine accordingly while checking the seam. Thread tension:Turning to a lower number means less tension. Turning to a higher number means more tension. B:Right needle thread tension dial A: Left needle thread tension dial D:Lower looper thread tension dial C:Upper looper thread• tension dial Correct thread tension Right needle thread ) M 6mm(O.
shown below. thread tension for the seams It is necessary to adjust the EAD TENSIONS] [ADJUSTING THE NEEDLE THR tension is too loose. The right needle thread loose. The left needle thread tension is too thread tension. Tighten the right needle Tighten the left needle thread tension. THREAD TENSIONS] [ADJUSTING THE LOOPER The upper looper thread is tight and/or the lower looper thread is loose. or The lower looper thread is tight and/ the upper looper thread is loose.
[MACHINE ADJUSTMENT CHART The best tension for one fabric may not be correct for another. The required tensions depend upon stiffness and thickness of fabric, thread size and type. If necessary, readjust referring to the chart below. labrIcs Threads Needle Stitch length Standard Setting Light-weight Georgette Cotton Organdy Spun polyester Lawn Voile Polyester Crepe-de.chine continuous Silk HA 1 X 2.0-3.5 mm Standard 130/705H 2.5 mm No. 80-100 etc. Medium.
[cHANGING THE THREAD (TYING ON) manner. It is simple to change the thread in the following of old and new threads Cut the thread above the spool pin, and knot ends together. foot. Set the tension dial to “0” and raise the presser Pull the other end of thread until knots come un der the presser foot. For needle threads, pull the other ends of threads until knots come to needle eyes and cut the threads at the both sides of the knots. Then re-thread the needles.
[ADJUSTMENT OF STITCH LENGTH There are nine settings which adjustments can be made from 1.0 to 5.0 mm. Most overlock work is done with a standard stitch length setting of 2.5-3.5 mm. Stitch length adjustment knob(lnner dial) [STITCH LENGTH SETTING] Stitches Stitch length Regular seaming 2.O—5.Omm 3.0mm (Standard Setting) Narrow seaming 1.O-2.0mm Rolled edging 1.0 2.0mm Picot edging 3.0-4.
_______________________________ 1 LCuTTING WIDTH The proper cutting width differs with the type of fabric. Check the seams each time, and adjust the cutting width as follows. l.Turn the handwheel toward you until the needles are at the lowest position. .Open the front cover and free arm 2 3.Turn the cutting width adjustment knob until the looper threads lie along the edge of the fabric. Adjust to a narrower cutting width if the fabric edges curl when sewing.
CHANGiNG THE NEEDLE the Turn the power switch to “OFF’ before changing needles. Hexagon wrench key Do not use any needle which is bent or blunt. l.Turn the handwheel toward you until the needles are fully raised. 2.Open the front cover and lower the presser foot. 3. Using the hexagon wrench key from the accessory box, loosen the needle clamp screws and remove the needles. Upper left screw for left needle and lower right screw for right needle. 4.
REPLACINGIHE CUTTERS Turn the power switch to “OFF” before replacing the cutter blades. The lower cutter is made of special material and does not usually need to be replaced. However; should it become damaged, it can be replaced by your local dealer. To replace the upper cutter when it becomes dull: l.Open the front cover and turn the handwheel toward you until the needles are in the lowest position. 2.
THREE THREAD NARROW AND WIDE OVERLOCK STITCHI This machine is a 3/4 thread convertible overlock. Remove either the right or left needle. Your machine is now ready for use as a 3-thread overlock. Refer to “CHANGING THE NEEDLE” Hexagon wrench key 4mm(0. 16”) Using the needle on the right only. The stitch width is 4mm (0.1611) 6mm(0.24”) Using the needle on the left only. The stitch width is 6mm (0.
I FREE ARM SEWING Remove the support bed as illustrated which easily converts from a flat bed to tree arm. Convenient for sewing pant legs, sleeves and cuffs, etc. Free arm Support bed rCONVERTIBLE PRESSER FOOT The special presser foot, is set for normal overlock with the letter N adjacent to the vertical screw at front of presser foot.
I ROLLED AND NARROW EDGE To carry out either of the above sewing tasks proceed as follows. (1) Refer to page 20 for special foot position setting. (2) Turn the handwheel toward you until needles are fully raised. (3) Open front cover and remove left needle. See page 17. (4) Set stitch Length between 1.0-2.0 mm. See page 15. Also ensure that differential control is set at ‘N’ position. (5) Adjust stitch width,as shown on page 16. (6) If not already threaded re-thread the machine.
Important: It necessary, adjust the stitch length and cutting width. Threads Fabrics Narrow hemming Rolled hemming Georgette Spun polyester Spun polyester No.50—80 No5O—8O Needle thread Lawn Polyester continuous Crepe-de Polyester continuous No.50—80 No5O8O -chine Wooly-nylon Spun polyester Upper • Silk Spun polyester Wooly-nylon Broadcloth No.50—80 looper Rayon Rayon thread Polyester continuous thread No.5O—8O Voile Spun polyester Spun polyester No.5O8O No.
I DIFFERENTIAL FEED and also movement between the The difterential feed prevents wavy seams in knitted fabrics fabrics. layers of fabric. It also ensures pucker-tree seams on lightweight [DIFFERENTIAL FEED MECHANISM] rear, The two sets of teed teeth move There ard two sets of feed teeth, one front and one at different rates independently.
[WAVY KNITS For perfectly flat % GATHERING] seams in stretchy knit garments, the front feed teeth need to feed faster than the rear feed teeth to prevent stretching the fabric. To Gather, the front feed teeth will also need to feed faster than the rear feed teeth. By using a long stitch length, (see pg. 23 adjust), your fabris will easily gather. Set differential feed to 2.
RbUBLE SHOOTING GUIDE Check items below before calhng for service. CD Needles break CD Page Corrective action Cause Problem Needles are bent, blunt or Replace with new needles. points are damaged. Insert the needles correctly to the 17 Needles not inserted correctly. CD You have forcibly pulled the Guide fabric. 17 needle clamp. fabric gently with both hands. Thread breaks CD © CD Threading is incorrect. Thread the machine correctly. Thread tension is too tight.
LCIJEANING AND LUBRICATING 1 To keep your machine running smoothly ; it is necessary to clean using the brush from the ac cessory box now and then. This machine requires very little lubrication as the main components are made of special materials. Occassionally, lubricate only the points illustrated. [ SPECIFICATION OF MACHINE Specification Description Number of threads 4 or 3 Number of needles 2 or 1 Sewing speed Up to 1500 s.p.
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