ELNA eXcellence 780 Скачать руководство пользователя страница 9 | Manualshive

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7

5. Loosen the setscrew E.

Hooks

Setscrew E

6.  Unlock the hooks from the front cover.
    Remove the connectors from the circuit board A.
    Remove the front cover.

To attach:
1. Follow the above procedure in reverse.
Refer to page 7 for locating connector posts.

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Содержание eXcellence 780

Страница 1: ...SERVICE MANUAL MODEL eXcellence 780 First Edition 3 June 2016...

Страница 2: ...8 19 Hook timing 20 Needle bar height 21 Backlash between hook drive gear and lower shaft gear 22 Upper shaft shield plate position 23 Upper thread tension 24 Tension release mechanism 25 Replacing Ne...

Страница 3: ...low the above procedure in reverse Setscrew A Face cover Top cover To remove 1 Raise the carrying handle Remove the setscrew B Close the carrying handle Setscrew B Top cover 2 Open the top cover Remov...

Страница 4: ...ve 1 Remove the caps from the belt cover Remove the setscrews A and B Setscrew A 2 Loosen the setscrew C Setscrew B Setscrew D Belt cover Setscrew C 3 Loosen the setscrew D Remove the belt cover To at...

Страница 5: ...B Machine base Base cover To remove 1 Remove the extension table Remove the setscrews A 2 Remove the base cover To attach 1 Follow the above procedure in reverse Bed cover To remove 1 Remove the exte...

Страница 6: ...e cover see page 3 Press the needle plate release lever to remove the needle plate Changing External Parts 2 Remove the pin Remove the bed cover see page 3 3 Loosen the setscrew A Pin Bed cover Needle...

Страница 7: ...ee arm while unlocking the hook A front side of the free arm and B inside of the machine base from the free arm 5 Slide the free arm cover to the left Remove the free arm cover To attach 1 Follow the...

Страница 8: ...er To remove 1 Remove the top cover belt cover base cover machine base and free arm cover see pages 1 5 2 Loosen the setscrews A Setscrew C 3 Loosen the setscrews B and C 4 Loosen the setscrew D Setsc...

Страница 9: ...E Hooks Setscrew E 6 Unlock the hooks from the front cover Remove the connectors from the circuit board A Remove the front cover To attach 1 Follow the above procedure in reverse Refer to page 7 for l...

Страница 10: ...n the setscrew B Setscrew A Setscrew B Rear cover To remove 1 Remove the top cover mahine base base cover and free arm cover see pages 1 3 and 4 5 2 Open the face cover Disconnect the connector from t...

Страница 11: ...the rear cover hook from the front cover 6 Disconnect the connectors A and B from the sockets Cut and remove the cord tie as necessary Remove the rear cover To attach 1 Follow the above procedure in r...

Страница 12: ...n the connector correctly then push it straight down until it locks in place Setscrew Setscrew q w e r t y u i o 0 1 2 3 4 6 5 7 8 9 0 8 7 6 5 4 3 2 1 Bobbin winder switch LCD Touch panel Program Slav...

Страница 13: ...ensor Drop feed detecting sensor brown DC motor Presser foot lifter motor Thread tension motor Zigzag motor USB Foot control Thread cutter switch jack Phase sensor Program Slave Lamp relay cable q w e...

Страница 14: ...Disconnect the connectors from the circuit board A see page 10 11 3 Remove the CS rings 4 Remove the setscrews and the circuit board F To attach 1 Follow the above procedure in reverse Replacing Elect...

Страница 15: ...itching power supply Setscrew A Setscrew B Power supply connector cord Cord guide plate Setscrew B Power supply connector cord Foot control connector A 3 Disconnect the power supply connector from the...

Страница 16: ...r belt Remove the driving motor Replacing Electronic Components To attach 1 Attach the driving motor Tighten the setscrews temporarily 2 Adjust the motor belt deflection to about 5 mm by pressing the...

Страница 17: ...nt cover see pages 1 2 and 6 7 2 Remove the setscrews A and B 3 Cut the cable tie A Be careful not to cut the cables Remove the setscrew C and cords from the cable tie B Remove the thread tension unit...

Страница 18: ...tscrew A 6 Loosen the nut with a socket wrench Turn the adjusting screw and adjust the feed dog hight to 0 85 mm 7 Tighten the nut and setscrew A 8 Turn the handwheel and check that the feed dog teeth...

Страница 19: ...the needle and the needle hole should be 0 2 mm or more Eccentric pin Needle hole 0 2 mm or more 0 2 mm or more A B Hexagonal socket screw Pin Eccentricity 9 0 0 0 Needle drop position 4 5 Fig 1 3 If...

Страница 20: ...e LCD shows 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 behind the test pin 6 Loosen the...

Страница 21: ...heel toward you until the tip of the hook comes behind the test pin Adjust the clearance between the needle and the tip of the rotary hook by moving the hook base plate up or down so the test pin just...

Страница 22: ...er switch ON Select straight stitch Set the needle drop position at 0 0 Do not turn the switch OFF 4 Remove the presser foot the needle plate and the bobbin holder Bobbin holder Hook Tip of hook 5 Tur...

Страница 23: ...e range of 1 6 to 2 0 mm when the tip of the hook meets right side of the needle in the needle drop position 0 0 as the needle ascends from its lowest position 1 6 to 2 0 mm Upper edge of the needle e...

Страница 24: ...edle plate when removing 3 Turn the handwheel toward you so the 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 t...

Страница 25: ...actory Setting Mode Press Phase key 3 Turn the handwheel toward you slowly to bring the needle up from its lowest The indication below Bight changes from L to H 4 The needle height should be 7 7 0 5 m...

Страница 26: ...pproximately 110 mm sec in the direction of arrow 1 Turn the power switch ON while pressing the Start Stop button and the Reverse stitch button The LCD shows the Factory Setting Mode Press BH Sensor k...

Страница 27: ...release mechanism should work correctly 1 Remove the belt cover and top cover see pages 1 2 2 Remove the front cover see page 6 7 3 Turn the power switch off Turn the thread tension gear until the co...

Страница 28: ...ot 3 Disassemble the threader unit and replace the threader hook Refer the following part number when ordering service parts 862627005 Hook holder unit To attach 1 Assemble the threader unit and attac...

Страница 29: ...the needle eye 2 If the threader hook is not aligned vertically with the needle eye loosen the setscrew A Adjust the stopper position so that the hook enters into the needle eye Tighten the setscrew...

Страница 30: ...ver from the surface of bobbin holder should be in the range of 5 5 6 0 mm 1 Remove the presser foot the needle plate and the bobbin holder 2 Loosen the hexagonal socket bolt use an Allen key of 1 5 m...

Страница 31: ...shaft is 2 5 mm If not adjust it as follows 2 5 mm Upper feed link shaft Upper feed lower shaft Mechanical adjustment Upper feed dog 1 The clearance between the upper feed link shaft and upper feed l...

Страница 32: ...f 6 The clearance between the dual feed foot and upper feed dog should be 4 mm If not follow the procedure below Mechanical Adjustment Upper feed dog 2 The clearance between the dual feed foot and upp...

Страница 33: ...the power switch off 5 Raise the toe of the dual feed foot and leave it as it is 6 Turn the handwheel toward you to lower the needle until the needle tip comes 1 mm or less above the needle plate 7 Th...

Страница 34: ...en the setscrew on the buttonhole lever guide Move the buttonhole lever guide to the left to adjust the position Tighten the setscrew when the indication below BH Sen changes from H to L 3 Attach the...

Страница 35: ...ed and moving cutter moves to its home position automatically 3 The distance between the end of moving cutter and the end of thread cutter plate slit should be 0 4 to 1 2 mm If not adjust it as follow...

Страница 36: ...presser foot Turn the power switch OFF 3 Raise 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 ad...

Страница 37: ...lifter 3 Remove the top cover see page 2 39 4 to 39 8 mm Presser foot lifter stopper Presser foot spring release base Setscrew B Setscrew F Setscrew A Carrying handle supporter front Setscrew D LED co...

Страница 38: ...Raise the presser foot lifter Loosen the hexagonal socket screw use an Allen wrench of 2 5 mm width across flats 2 Adjust the distance between the presser foot spring release base and the presser foo...

Страница 39: ...th your hand to 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 b...

Страница 40: ...edle plate press key few times 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...

Страница 41: ...be in the range of 33 to 39 mm as shown 2 Set the stretch stitch balance dial vertical 3 Attach the satin stitch foot F Sew test patterns and measure the length of the 5 patterns The length sholud be...

Страница 42: ...move the base plate up or down to adjust it Tighten the setscrews TP firmly after the adjustment The actuator of the micro switch should be alighed with the needle plate sensor knob as shown in fig 3...

Страница 43: ...the Reverse stitch button The LCD shows the Factory Setting Mode Press Knee lifter key Knee lifter is free Push the knee lifter to the right as far as it goes 2 Attach the knee lifter Press MEM1 key w...

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