ELNA eXpressive920 Скачать руководство пользователя | Manualshive

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12

Setscrews

Connector A

Printed circuit
board F

Printed circuit board F

To remove:
1. Remove the front cover (see page 5).
2. Disconnect the connector A from the circuit board K.

Remove the sticky tapes (2 places).

3. Remove the setscrews (2 pcs), and the circuit board F.

To attach:
1. Follow the above procedure in reverse.
2. Fix the connector cords with sticky tapes (Sekisui Chemical

Polyesper Type 900 or 3M 44D-A Electrical Tape)

Replacing Electronic Components

Sticky tape

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Содержание eXpressive920

Страница 1: ...SERVICE MANUAL eXpressive920 First Edition 01 September 2015...

Страница 2: ...27 Tension release mechanism 28 Needle threader hook position 29 Thread drawing lever 30 Upper feed dog 31 33 Buttonhole lever adjustment 34 Thread cutter 35 Presser bar lifter position 36 Presser foo...

Страница 3: ...ttach 1 Follow the above procedure in reverse Belt cover To remove 1 Remove the caps 2 Remove the setscrews B and C Connector Face cover Caps Setscrews B Setscrew D Setscrew C Setscrew E 3 Loosen the...

Страница 4: ...e bobbin winder motor cords Disconnect the connector from the printed circuit board U1 Remove the top cover To attach Follow the above procedure in reverse Be careful not to pinch the cords when attta...

Страница 5: ...Setscrew B Base cover To remove 1 Remove the extension table 2 Remove the setscrews C 4 pcs Remove the setscrews D 3 pcs Remove the base cover To attach Follow the above procedure in reverse Base plat...

Страница 6: ...4 Pull the free arm cover to the left and lift the part B to clear the needle palte base and remove the free arm cover To attach 1 Place the free arm cover on the free arm inserting the hook C into th...

Страница 7: ...s 1 and 2 2 Loosen the setscrews A B C D E and F 3 Push down the rear cover through the holes G and H with a screwdriver to unhook it from the front cover 4 Disconnect the all connectors Remove the fr...

Страница 8: ...cover see page 1 2 and 3 2 Open the face plate and disconnect the connector 3 Loosen the setscrews A and B 4 Remove the setscrews C 2 pcs and D 2 pcs Setscrews C Setscrew D Holes E 5 Push down the re...

Страница 9: ...part number when ordering service parts 862627005 Hook holder unit To attach 1 Assemble the threader unit as illustrated and attach them to the threader shaft by inserting the shaft into the holes Mak...

Страница 10: ...s Remove the setscrews 4 pcs and printed circuit board A To attach Follow the above procedure in reverse After replacing the printed circuit board A adjust the following parts Knee Lifter see page 48...

Страница 11: ...E Do not disconnect the connectors by pulling on cord To disconnect the connectors grasp the connector not the cord To remove 1 Remove the top cover see page 2 2 Disconnect the connectors Remove the s...

Страница 12: ...onic Components Printed circuit board U2 NOTE Do not disconnect the connectors by pulling on cord To disconnect the connectors grasp the connector not the cord To remove 1 Remove the base plate see pa...

Страница 13: ...connectors from the circuit board K 3 Remove the setscrews 3 pcs and the circuit board K To attach Follow the above procedure in reverse Replacing Electronic Components Circuit board K schematic Print...

Страница 14: ...t the connector A from the circuit board K Remove the sticky tapes 2 places 3 Remove the setscrews 2 pcs and the circuit board F To attach 1 Follow the above procedure in reverse 2 Fix the connector c...

Страница 15: ...printed circuit board A see page 8 Cut the tie band of the ferrite core and remove the cords from the board 3 Disconnect the connector from the case 4 Remove the setscrews 2 pcs 5 Remove the auxiliar...

Страница 16: ...out the connector from the opening and remove the connector cords from the cord guide 4 Remove the setscrews B top of the machine 5 Disconnect the connector C from the switching power supply unit 6 Re...

Страница 17: ...he USB unit connector from the printed circuit board A see page 8 Cut the tie band of the ferrite core 3 Lay the machine on its back Remove the setscrews 2 pcs 4 Remove the USB unit from the machine T...

Страница 18: ...ing motor To attach 1 Put the motor belt on the motor pulley 2 Attach the DC motor and slightly tighten the setscrews F 2 Adjust the belt tension Push the middle of the belt span with approximately 20...

Страница 19: ...shield guide plate Cut the 3 tie bands 4 Disconnect the thread cut detection connector and thread tension motor connector from the printed circuit board U1 see page 9 5 Remove the setscrews C and D Re...

Страница 20: ...e 9 Remove the spiral cord binder and separate the needle threader motor cords from other cords Remove the setscrews D Remove the motor and the needle threader unit To attach 1 Place the needle thread...

Страница 21: ...button to lower the presser foot 4 Turn the handwheel toward you to raise the feed dog at its highest position 5 Loosen the setscrew A 6 Loosen the nut Turn the adjusting screw to adjust the feed dog...

Страница 22: ...the needle drop position The direction of eccentric pin should be as shown as fig 2 5 Tighten the hexagonal socket screw Check the hook timing and the needle bar height after this adjustment see page...

Страница 23: ...g the Start Stop button and the Reverse stitch button to enter the factory setting mode Press Bobbin key The machine will set the zigzag width at maximum 3 Remove the presser foot the needle plate and...

Страница 24: ...wn to adjust the needle bar height Tighten the hexagonal socket screw Be careful not to turn the needle bar 6 Attach the bobbin holder needle plate Hexagonal socket screw Needle setting groove Needle...

Страница 25: ...utton and the Reverse stitch button to enter the factory setting mode Press Bobbin key The machine will set the zigzag width at maximum 5 Turn the handwheel toward you until the tip of the hook comes...

Страница 26: ...ook base plate up or down to adjust the clearance between the needle and the tip of the hook 4 Tighten the setscrews A B and C 5 Check the backlash between the lower shaft gear and the hook drive gear...

Страница 27: ...ate 3 Turn the handwheel toward you so the tip of the rotary hook is within the width of feed dog as shown Check the rotary play of the hook 4 If the backlash is too much or too little loosen the hexa...

Страница 28: ...needle height should be 7 2 to 8 2 mm above from the surface of the needle plate If not adjust the upper shaft shield position To adjust 1 Remove the top cover see page 2 2 Turn the handwheel toward y...

Страница 29: ...ower switch ON while pressing the Start Stop button and the Reverse stitch button to enter the factory setting mode Press BH Sensor key 2 Thread 50 polyester thread to the machine 3 Set the thread ten...

Страница 30: ...ower the presser foot The thread tension gear turns and the projection goes off the tension release claw The tension disk should close If the tension release does not work properly adjust the clearanc...

Страница 31: ...he handwheel counterclockwise slowly until the NT Phase changes from H to L Then turn the handwheel clockwise very slightly until the NT Phase changes from L to H 3 Press the Adjust key The needle thr...

Страница 32: ...edle plate and the bobbin holder 2 Loosen the hexagonal socket bolt use an Allen key of 1 5 mm width across flats Adjust the distance between the lower part of thread drawing lever and the hook race t...

Страница 33: ...tment Upper feed dog 1 The clearance between the upper feed link shaft and upper feed lower shaft should be 2 5 mm when the upper feed adjusting dial is set to 0 Upper feed adjusting dial Drop feed ke...

Страница 34: ...2 2 Loosen the hexagonal socket screws on upper feed rear arm use an Allen wrench of 2 mm width across flats 3 Insert the 4 mm spacer between the upper feed dog and dual feed foot to adjust the clear...

Страница 35: ...allow the foot flapping If not refer to the next page and adjust it Mechanical Adjustment Upper feed dog 3 The dual feed foot sits on the needle plate firmly with no gap when the needle tip comes 1 mm...

Страница 36: ...ove the buttonhole lever left and right Hold the buttonhole lever when the BH Sen shows L and tighten the setscrew Start Stop button Reverse stitch button 3 Attach the automatic buttonhole foot R Lowe...

Страница 37: ...n The moving cutter motor is initialized and moving cutter moves to its home position automatically 4 The distance between the edge of moving cutter and the end of thread cutter plate slit should be 0...

Страница 38: ...the presser foot with the presser foot lifter You must use the presser foot lifter to raise the presser foot for this adjustment otherwise you cannot adjust the presser foot height correctly Drop fee...

Страница 39: ...wer switch OFF 2 Raise the presser foot with the presser foot lifter 3 Remove the top cover see page 2 4 Loosen the setscrew A 5 Remove the setscrews B Remove the motor cover see page 18 6 Remove the...

Страница 40: ...connector and remove the carrying handle supporter Front bracket Presser foot lifter stopper position preparation continued Carrying handle supporter 9 Remove the supporter spring Remove the setscrews...

Страница 41: ...rn the handwheel toward you to lower the needle Raise the presser foot lifter Presser foot lifter stopper position adjustment 3 Loosen the hexagonal socket screw use an Allen wrench of 2 mm width acro...

Страница 42: ...raise the presser foot 4 Place a 13 mm thick spacer between the presser foot and the needle plate Lower the presser foot on the spacer firmly by turning the gear A 5 Be sure that the both Sensors 1 an...

Страница 43: ...mes to raise the presser foot then press key to lower the foot until the foot lands on the needle plate without the gap Adjust the presser bar height always by pressing key Do not press at the end of...

Страница 44: ...d 3 Press Offset key The Offset key changes to Adjust 4 Press 1 7 mm The embroidery foot will be lowered 5 If the clearance is less than 1 7 mm press the key to raise the foot until the clearance reac...

Страница 45: ...button to enter the factory setting mode Press 8 Adjust key see Fig 2 4 Sew the patterns at the maximum speed until the machine stops automatically The machine will sew 8 eight times Check the length...

Страница 46: ...d the Reverse stitch button to enter the factory setting mode Press Knee lifter key 3 Attach the knee lifter Press MEM1 when the knee lifter is free 4 Push and hold the knee lifter to the right and pr...

Страница 47: ...obbin holder counterclockwise so that the knob fits to the stopper in the hook race 6 Press Key and read Key value Press Key a few times until the same Key values are indicated Press Empty to memorize...

Страница 48: ...e cloth guide moves to the start position and the initial X value 1950 is indicated 5 Press key or to move the cloth guide to the position 15 mm away from the center needle position NOTE Adjustable ra...

Страница 49: ...the lock tab of the carriage arm with a slotted screwdriver c Slide the carriage in the direction of the arrow Remove the setscrew w v Remove the Y carriage cover upper w Preparation Remove Y carriage...

Страница 50: ...48 Mechanical Adjustment b Remove the setscrews e 3 pcs e n Remove the X carriage cover unit m Remove the setscrews r r r r r r Removing X carriage cover and Embroidery unit cover...

Страница 51: ...nit again Push down the carriage arm release lever q Retract the carriage arm to the stored position q i 0 Move the carriage arm as far as it goes in the direction of arrow i 1 Move back the carriage...

Страница 52: ...er the guide plate 3 so the cable will not be damaged when moving q 4 Move the carriage arm in the direction of arrow 1 5 Push down the carriage arm release lever q Extend the carriage arm To attach t...

Страница 53: ...or with a precision driver and pull out the brown e orange q and red w cords w q e Precision screwdriver r r x Remove the setscrews r to remove the X motor Attaching X motor Follow the above procedure...

Страница 54: ...52 Mechanical Adjustment c Remove the Y carriage cover lower Removing Film v Remove the setscrews e 2 pcs on the film holder e b Remove the film holder and the film...

Страница 55: ...etscrews r on the film guides r r r r r t t m Remove the setscrews t 2 pcs on the film guides t t Removing Y carriage Pull the cable in the direction of arrow y to disconnect the flexible cable from t...

Страница 56: ...54 Mechanical Adjustment 0 Remove the setscrews i 3 pcs and o 3 pcs i o 0 1 Remove the setscrews 0 3 pcs 2 The Y carriage is removed...

Страница 57: ...al Adjustment Removing Y motor 3 Loosen the hexagonal socket screw 1 1 2 3 4 Slide the stopper 2 in the direction of arrow to access the setscrew 3 Remove the setscrew 3 4 5 Remove the setscrew 4 5 6...

Страница 58: ...8 Remove the cord binder and disconnect the connector 2 from the printed circuit board S2 1 9 Pry up the lock tab of the connector with a precision driver and pull out the red 3 orange 4 brown 5 whit...

Страница 59: ...screw q Disconnect the connectors from the printed circuit board S1 Remove the printed circuit board S1 To attach follow the above procedure in reverse q Replacing Embroidery Unit Detecting Switch z R...

Страница 60: ...q 2 pcs on the film holder q x Remove the film holder w and the film q w Attaching film c Replace the film Insert the film in the film cover v Insert the both edges of the film in the guides e then m...

Страница 61: ...red w cords r x Remove the setscrew r Remove the X sensor w q e Precision screwdriver q w e Attaching X sensor c Insert the brown e orange q and red w cords to the connector Be sure that the cords ar...

Страница 62: ...1 mm loosen the setscrew r and move the X sensor position to the left If the range between A and B is larger than 11 1 mm loosen the setscrew r and move the X sensor position to the right Initialize t...

Страница 63: ...e X belt to the pulley under the X belt base plate v Hook the X belt to the pulley of X motor Adjust the X motor position and tighten the setscrews w 3 pcs temporarily Adjust the X belt deflection to...

Страница 64: ...s illustrated Tighten the setscrew y to attach the Y sensor Insert the cords e r and t to the connector Plug the connector to the printed circuit board S2 x Attach the embroidery unit to the MC12000 I...

Страница 65: ...ws e v Remove the Y belt w w w w w q e e Attaching Y belt n Attach the Y belt r n Be sure that the Y belt deflection to about 3 mm by pressing the middle of Y belt with approximately 30 grams of press...

Страница 66: ...it locks in fully extended position x Turn the embroidery unit upside down Remove the cover w q w c Move the Y carriage e under the hole r r e t u y v Hook a slotted driver to the hole t To tighten th...

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