MSTRUCTION MANUAL \\T% rpe^.
INTRODUCTION THANK YOU FOR CHOOSING OUR OVERLOOK 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.................... ................. ' ' ....... . 1.
TABLE OF CONTENTS NAME OF MAIN COMPONENTS........................................................................................ 3 SETTING UP YOUR MACHINE....................................................................................... 4~8 The position of thread pole..............................................................................“4 Spool holders .................................................................................................... 4 Spool caps ............................
MAME OF MAIN COMPONENTS Thread pole Thread guide Thread guide plate Right needle thread tension dial Upper looper thread tension dial Lower looper thread tension dial Left needle thread tension dial Spool pin — Spool holder Needle plate Free arm Handwheel Base Machine socket Support bed Front cover Power switch Upper knife Upperlooper Presser foot Cutting width adjustmentknot Lower knife Free arm-•.-'-.-VX-.
SETTING UP YOUR MACHINE____________ Set your Overlook machine on a sturdy flat 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.
[CONNECTING THE FOOT CONTROL] Push foot control plug into the machine socket and then into main socket. Turn on the power switch. This power switch controls both the machine power and sewing light. ^ This appliance has a polarized plug (one blade widerthan the other). To reduce the risk of electric shock, this plug is intended to fit in a polarized outlet only one way, if the plug does not fit fully in the outlet, reverse the plug.
[ATTACHING THE WASTE CATCHER] The waste catcher catches the cut-off fabric as you sew, keeping your working area clean. Place the waste catcher between the machine and table.
USING THE MACHINE [HANDWHEEL] Always turn handwheel toward youj.e. the same direction as on a household sewing machine. [FRONTCOVER] To open front cover, slide the hollow to the right as far as it will go then pull front cover toward you. The front cover won’t close while the free arm is open. [FREE ARM] Open the free arm for threading. Open the front cover first. While pushing the release lever, push the free arm down ward with your left hand.
LOOPER THREADING Correct threading is important otherwise uneven stitches or thread breakage may result A convenient threading chart is placed on the front panel inside the front cover, in addition, each thread guide is colored for threading indication. To help in threading, tweezers can be found in the accessory box. V® Threading must be carried out in the ^^V 7 following sequence. I.FIRST................Upper looper 2.SECOND............... Lower looper 3. THIRD............. Right needle 4. F1NALLY....
lEEDLE THREADING 5. Turn the handwheel toward you until needles are fully raised. 6. 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 ■;S 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 ser foot.
TRIAL SEWING When the overlook has been threaded for the first time or re-threaded because of thread bre 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 fabric for trial sewing under the presser foot and start sewing slowly. The fabric will be automatically fed. Guide the fabric as you serge.
ADJUSTING THREAD TEMSSO»jS 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:Turn dial toward smaller numbers, tension becomes loose. Turn dial toward larger numbers, tension becomes tight. B:Right needle thread C:Upper looper thread Correct thread tension Right needle thread 6mm(0.
It is necessary to adjust the thread tension lor the seams shown below. [ADJUSTING THE NEEDLE THREAD TENSIONS] 'he left needle thread tension is too loose. j^e right needle thread tension is too loose. Back side Front side Front side righten the left needle thread tension. Tighten the right needle thread tension. [ADJUSTING THE LOOPER THREAD TENSIONS] The lower tooper thread is tight and/or The upper looper thread is tight and/or the upper looper thread is loose. the lower looper thread is loose.
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. Threads Fabrics Needle Stitch length Light-weight Georgette Organdy Lawn Voile Crepe-de-chine Silk etc. Medium-weight • Cotton • Poplin ■ Gingham • Corduroy etc. Heavy-weight • Denim • Tweed • Velour Cotton HA X 1 Spun polyester No. 11 Polyester continuous 130/705H No. 80 No. 80-100 2.0-3.
CHANGING THE THREAD (TYING ON) it is simple to change the thread in the following manner. Cut the thread above the spool pin, and knot ends of old and new threads together. Set the tension dials to "0"and raise the pressarfoot. 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.
There are nine setting adjustments which can be made from 1.0 to 5.0 mm. Most overlook work is done with a basic stitch length setting of 2.5-3.5 mm. Stitch length adjustment knob(lnner dial) ■ '-'i [stitch length setting] Stitches Regular seaming Narrow seaming Rolled edging Picot edging Stitch length 2.0~5.0mm .. . 3.0mm (Standard Setting) l.Q~2.Qmm 1.0~2.0mm 3.0~4.
CUTTING WIDTH i he proper cutting width differs with the type of fabric. Check the seams each time, and adjust the cutting width as follows. ¡.Turn the handwheel toward you until the needles are at the lowest position. 2.0pen the front coyer and free arm. 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. Turn the cutting width adjustment knob to the right.
CHANGING THE NEEDLE Turn the power switch to ”OFF" before changing the needles. Do not use any needle which is bent or blunt. l.Turn the handwheel toward you until the needles are fully raised. 2.0pen 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.
REPLACING THE 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: I.Open the front cover and turn the handwheel toward you until the needles are in the lowest position. 2.
THREE THREAD NARROW AND WIDE OVERLOOK STITCH This machine is a 3/4 thread corivertible overlook. Remove either the right or left needle. Your machine is now ready for use as a 3-thread overlook. Refer to "CHANGING THE NEEDLE" 4mm(0.16") -i Using the needle on the right only, the stitch width is 4mm (0.16") 6mm(0.24") Using the needle on the left only, the stitch width is 6mm (0.
FHSE ARM SEWING Remove the support bed as illustrated which easily converts from a flat bed to free arm. Convenient for sewing pant legs, sleeves and cuffs, etc. CONVERTIBLE PRESSER FOOT The special presser foot, is set for normal overlook with the letter N adjacent to the vertical screw at front of presser foot. When you need to sew a rolled edge, simply loosen the large screw slightly and move the finger that protrudes from left side of foot forward until it stops, then re-tighten the screw.
ROLLED AND NARROW EDGE 10 carry out either o1 the above sewing tasks proceed as lollows. (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: If necessary, adjust the stitch length and cutting width. Threads Fabrics Rolled hemming • Spun polyester • Georgette Needle thread • Lawn • Crepe-de -chine Upper • Silk • Broadcloth looper • Rayon N o .50~80 Narrow hemming * Spun polyester N o .50~80 • Polyester continuous No.50~80 • Polyester continuous No.50~80 • Spun polyester * Wooly-nylon Spun polyester No.50~80 • Wooly-nylon Rayon thread thread • Polyester continuous * Voile N o .
DIFFERENTIAL FEED The differential feed prevents \«avy seams in knitted fabrics and also movement between the layers of fabric. It also ensures pucker-free seams on lightweight fabrics. [DIFFERENTIAL FEED MECHANISM] There are two sets of feed teeth, one front and one rear. The two sets of feed teeth move independently. Differential feed allows the two sets of feed teeth to move at different rates.
[ W A V Y KNITS i GATHERING] For perfectly flat 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 teed faster than the rear feed teeth. By using a long stitch length,, (see page 23 to adjust), your fabris will easily gather. Set differential feed to 2 .
ROUBLE SHOOTING GUIDE Check items below before calling for service. Corrective action Cause (D Needles are bent, blunt or points are damaged. ® Needles not inserted correctly. Needles break ® You have forcibly pulled the fabric. Problem Thread Replace with new needles. Insert the needles correctly to the needle clamp. Guide fabric gently with both hands. Thread the machine correctly. Reset the thread tension. Insert the needles corrcetly to the needle clamp. (D Threading is incorrect.
LEAI^IMQ AND LUBR!CAT3N 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 Description Number of threads Number of needles Sewing speed Stitch width Stitch length Lift of presser foot Needles Dimentions W eight Specification 4 or 3 2 or 1 Up to 1500 s.p.
21.TROUBLE CHART PROBABLE CAUSE PROBLEM Breaking lower thread Thread not wound everaiy oo the bobbin or not drawn up correciiy Lower thread tension too tight Lint stuck in the bobbin case and inside the tension spring Skipping stitches The rnaterial not fed correctly P.10, P.1 5 ' P.12 Remove lint and fluff with a cleaning brush Needle not fully inserted P. 7 Needle bent P. 7 Size or type of needle and thread not suitable for the material Irregular stitches CORRECTJON ' P.
