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35

9. DOUBLE CHAIN

  Needle setting position:

LF (left front)

Threading procedure;

1  Double chain looper thread

2  Left needle thread

Bring the left needle thread under the presser

foot, put a sewing test piece on the needle

plate and lower the presser foot.

Turn the handwheel toward you to sew 2 to

3 stitches and pull the sewing test piece so

that the double chain looper thread comes

through the needle plate hole.

Draw out threads about 10 cm (4”)  under the

presser foot.

9

Содержание CompuLock

Страница 1: ...INSTRUCTION BOOK CompuLock...

Страница 2: ...ter for examination repair electrical or mechanical adjustment 4 Never operate the appliance with any air opening blocked Keep ventilation openings of the sewing machine and foot controller free from...

Страница 3: ...Operation 11 Threading the Lower Looper 12 14 Threading the Upper Looper 15 16 Threading the Right Needle 17 18 How to Use Needle Threader 18 Threading the Left Needle 19 20 Threading the Double Chai...

Страница 4: ...threads 43 Thread tension cover stitch 44 Thread tension double chain 45 To Adjust Stitch Length 46 To Adjust Differential Feed Ratio 46 To Deactivate the Upper Knife 47 To Activate the Upper Knife 47...

Страница 5: ...ess adjusting knob 5 Up Down needle position key 6 Side cover 7 Looper cover 8 Handwheel 9 Power switch 10 Differential feed dial 11 Stitch length dial 12 Extension table A 13 Double chain looper 14 L...

Страница 6: ...rewdriver small 8 Tweezers 9 Lint brush 10 Spanner wrench 11 Oil 12 Needle threader 13 Needle plate B for Cover Stitch 14 Presser foot B for Cover Stitch 15 Extension table B 1 2 3 4 5 6 7 8 9 10 11 1...

Страница 7: ...neway If the plug does not fit fully in the outlet reverse the plug If it still does not fit contact a qualified electrician to install the proper outlet Do not modify the plug in anyway 1 8 Plug in t...

Страница 8: ...open Push the side cover to the left To close Push the side cover to the right and slightly toward the machine body For Your Safety Always close both the side and looper covers when the machine is in...

Страница 9: ...hile pushing with the thumb to the right as far as it will go pull looper cover toward you To close Lift looper cover and push against the machine The looper cover snaps into the position automaticall...

Страница 10: ...l remove the spool holder from the spool pin Then place the spool with its slit side up and put a spool cap on top 2 If the thread slips down from the spool while threading or sewing put a net on the...

Страница 11: ...Needle clamp screw for RF 12 Needle clamp screw for LF To remove a needle Disconnect the machine from the power supply Raise the needle to its highest posi tion Then loosen the needle clamp screw to...

Страница 12: ...er or side cover is opened when you start sewing 2 Presser foot lifter is raised 3 The needle plate is not appropriate for the chosen stitch pattern 4 The upper looper setting dial is in the incorrect...

Страница 13: ...p of the lower looper 3 Pull out 10 cm 4 of needle thread and draw it toward the back of the machine under the presser foot Now lower the presser foot and sew Incorrect threading will cause skipped st...

Страница 14: ...ser foot lifter Place a spool of thread on the spool pin second from the right The points to thread for lower looper are marked in light green A convenient threading chart is placed on the machine bod...

Страница 15: ...m the right side as illustrated 3 Hold the thread at both ends and tug gently to ensure the thread is correctly inserted in the thread tension unit 4 Pass the thread through the center of the looper t...

Страница 16: ...and 5 as illustrated Holding the end of the thread push the lower looper thread guide 4 up with your other hand to return it to its original position as illustrated Lower looper thread guides 4 and 5...

Страница 17: ...l pin The points to thread for the upper looper are marked in red A convenient threading chart is placed on the machine body inside the looper cover 1 Draw the thread through the center guide from bac...

Страница 18: ...ooper thread guide 1 6 Pass the thread through the looper thread take up lever upper 7 Pass the thread through the upper looper thread guide 2 8 Holding the end of the thread with a pair of tweezers p...

Страница 19: ...the spool pin second from the left The points to thread for the right needle are marked in green A convenient threading chart is placed on the machine body inside the looper cover 1 Draw the thread th...

Страница 20: ...e eye of the needle 4 Push the pin through the needle eye forming a thread loop 5 Remove the threader and draw the loop towards the back of the needle Turn off the power switch before using the needle...

Страница 21: ...pool of thread on the far left spool pin The points to thread for the left needle are marked in yellow A convenient threading chart is placed on the machine body inside the looper cover 1 Draw the thr...

Страница 22: ...o ensure the thread is correctly inserted the thread tension unit 8 4 5 Pass the thread below the left needle thread guide then pull it up and over the left take up lever cover 6 Pass the thread throu...

Страница 23: ...ouble chain looper are marked in orange A convenient threading chart is placed on the machine body inside the looper cover 1 2 1 Draw the thread through the rightmost thread guide from back to front 2...

Страница 24: ...the handwheel toward you 5 4 Pass the thread through the right side of the looper thread guide 5 Pass the thread through the double chain looper thread guide 1 6 9 Pass the thread through points 6 th...

Страница 25: ...nging to Two or Three Thread Serging with Spreader 1 Spreader 2 Upper looper 3 Holder If you want to do two or three thread serging with the spreader use one or two needle threads and the lower looper...

Страница 26: ...can select the desired stitch by press ing one of the stitch pattern keys on the three pages 2 1 Page key 2 Stitch pattern key 3 Revert key 1 1 3 To Change Screen Language 1 To select the desired lan...

Страница 27: ...the required machine settings for the selected stitch 10 1 When you select the desired stitch from stitch pattern keys the thread tensions will be auto matically set Settings such as the stitch length...

Страница 28: ...6 FLATLOCK3 WIDE 7 FLATLOCK2 STANDARD 8 FLATLOCK2 WIDE 9 OVEREDGE 2 STANDARD 10 OVEREDGE 2 WIDE 11 COVERSTITCH 12 OVERLOCK 3 STANDARD 13 OVERLOCK 3 WIDE 14 ROLLED HEM 2 15 NARROW HEM 16 WRAPPED OVERLO...

Страница 29: ...ERLOCK 2 STANDARD WRAPPED OVERLOCK 2 WIDE DOUBLE CHAIN REG REG FINE FINE REG REG REG REG REG REG REG REG FINE FINE FINE FINE FINE REG REG FINE FINE REG REG FINE REG REG FINE REG WOOLLY DECO DECO REG R...

Страница 30: ...A A A A A A B A A A A A A A A A B S S S R S S S S S S R S S R R S S R S S R A A A A A A A A A A B A A A A A A A A A B YES YES YES YES YES YES YES YES STITCH PATTERN Stitch Pattern with Machine Settin...

Страница 31: ...pe of fabric you re using Press OK key to memorize or press Return key to return to previous screen and cancel any changes 4 Press LAYERS key to register how many layers of fabric you re sewing Thread...

Страница 32: ...ions changes depending on the type of stitch 3 The formerly memorized settings will be displayed 4 Press OK key to replace the previous settings with the new ones or press the Return key to cancel 2 3...

Страница 33: ...he visual touch screen will indicate the correct needle setting Press information key to confirm the machine setting The sewing pattern and threading is illustrated as follows 1 OVERLOCK 4 Needle sett...

Страница 34: ...edle setting position LB left back 4 OVEREDGE 2 STANDARD ROLLED HEM 2 FLATLOCK 2 STANDARD WRAPPED OVERLOCK2 STANDARD Needle setting position RB right back 5 OVEREDGE 2 WIDE FLATLOCK 2 WIDE WRAPPED OVE...

Страница 35: ...eedle thread under the presser foot To begin with raise the presser foot and place the fabirc at the desired start position Lower the presser foot and start to sew To finish sewing stop the machine at...

Страница 36: ...that the double chain looper thread comes out of the needle plate hole 7 Thread the right needle thread then place it under the presser foot together with the right needle thread and double chain loo...

Страница 37: ...the left needle thread under the presser foot put a sewing test piece on the needle plate and lower the presser foot Turn the handwheel toward you to sew 2 to 3 stitches and pull the sewing test piece...

Страница 38: ...m 5 while pulling the thread chain slightly to the back 4 Cut the threads with the thread cutter as illustrated leaving about a 5 cm 2 thread chain hanging from the end of the fabric Sewing Continuous...

Страница 39: ...about 5 cm 2 long behind the needle 2 Put your fabric in the machine Then serge a few stitches and stop 3 Raise the presser foot and bring the thread chain to the left around and under the presser fo...

Страница 40: ...n display screen 2 Press Thread tension keys to adjust the thread tensions manually Tighten left needle thread tension Tighten right needle thread tension 1 Wrong side of fabric 2 Right side of fabric...

Страница 41: ...of fabric 2 Right side of fabric 3 Right needle thread 4 Left needle thread 5 Upper looper thread 6 Lower looper thread 9 Upper looper thread tension 10 Lower looper thread tension Wrong tension The...

Страница 42: ...Right Needle thread tension 7 Upper looper thread tension 8 Lower looper thread tension The illustration shows sewing results when the upper looper thread tension is too tight and or lower looper thr...

Страница 43: ...thread tension 1 Wrong side of fabric 2 Right side of fabric 3 Right needle thread 4 Upper looper thread 5 Lower looper thread 6 Manual thread tension display screen 7 Right needle thread tension 8 U...

Страница 44: ...tension is too loose and or lower looper thread tension is too tight Remedy Tighten the upper looper thread tension and or loosen the lower looper thread tension Picot Edge Correct Tension The illust...

Страница 45: ...fabric 3 Right needle thread 4 Lower looper thread 5 Right needle thread tension 6 Lower looper thread tension Wrong tension Wrong tension The illustration shows sewing results when the needle thread...

Страница 46: ...ead tension is too loose Tighten right needle thread tension 1 Wrong side of fabric 2 Right side of fabric 3 Left needle thread 4 Right needle thread 5 Double chain looper thread 6 Left needle thread...

Страница 47: ...t piece is not satisfactory you can adjust the thread ten sion manually as follows Correct tension 1 Wrong side of fabric 2 Right side of fabric 3 Left needle thread 4 Double chain looper thread 5 Lef...

Страница 48: ...erential feed dial to adjust the feed ratio The number on the screen indicates the ratio between the main and the sub feed motion The differential feed ratio 1 0 indicates the neutral position The dif...

Страница 49: ...ide until it comes to its lowest position 4 Close the looper and side covers 1 Upper knife release knob 2 Upper knife To Activate the Upper Knife 1 Turn off the power switch and unplug the machine 2 O...

Страница 50: ...he cutting width adjusting dial to move the cutting blades to the desired position If the cutting width is too narrow turn the cutting width adjusting dial clockwise The lower knife will move right If...

Страница 51: ...utting width adjusting dial to the right as far as it will go then move the chaining finger setting knob to the guide line S for Standard serging or R for Rolled hem Release the cutting width adjustin...

Страница 52: ...older 3 Lever 4 Needle Attaching the Presser Foot Place the presser foot so that the pin on the foot lies just under the groove of the foot holder Lower the foot holder to lock the foot in place Raise...

Страница 53: ...west positions deactivated replace the needle plate pressure foot and move the chaining finger to R position before attaching the extension table B Replacement of the extension table is required for t...

Страница 54: ...nd tighten the set screw 1 Face plate 2 Light bulb 3 Holder Cleaning the Feed Dog 1 Open the looper and side covers 2 Remove the needles and presser foot 3 Move the chaining finger setting knob to R p...

Страница 55: ...e upper knife reaches its highest position 4 Remove the hexagon bolt and the upper knife To attach 1 Insert a new upper knife into the groove of the knife holder Then tighten the hexagon bolt slightly...

Страница 56: ...needle and or looper thread tensions are not correctly adjusted 2 The machine is not correctly threaded 3 The needle and or the thread are not suitable for the fabric being sewn 4 The thread is not co...

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