ELNA eXpressive 970 Скачать руководство пользователя страница 52 | Manualshive

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51

Replacing the X-carriage Belt

1. Remove the spool stand, static head right cover and
left cover (see pages 4 – 6).

2. Loosen the two setscrews (A) and remove the
X-carriage cover.

3. Shift the hoop supporter to the extreme left end.

Remove the two setscrews (C) and the X-belt holder.

4. Loosen the two setscrews (B) and shift the X-belt
pulley in the direction of the arrow.

5. Remove the E-ring and pull the X-belt pulley shaft to
remove the X-belt pulley.

6. Remove the two setscrews (D) and drive pulley shaft
unit.

7. Replace the X-carriage belt.

8. Attach the parts removed in steps 3 – 6.

9. Adjust the X-carriage belt tension (see the previous
page).

10. Attach the parts removed in steps 1 – 2.

Setscrews (A)

X-belt holder

Setscrews (C)

X-belt pulley

Setscrew (B)

Hoop supporter

E-ring

X-belt pulley shaft

Drive pulley shaft unit

Setscrews (D)

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Содержание eXpressive 970

Страница 1: ...SERVICE MANUAL MODEL eXpressive 970...

Страница 2: ...and Thread Reference Table 11 Adjusting the Bobbin Thread Tension 12 Checking the Lowest Position of the Needle 13 Replacing the Needle Bar Rest 14 Replacing the Take up Lever Cam Roller 15 Adjusting...

Страница 3: ...ion Stopper Plate 34 Replacing the Thread Take up Lever 35 Adjusting the Check Spring Tension 36 Adjusting the Check Spring Stroke 37 Adjusting the Thread Catcher Holder 38 Replacing the Thread Catche...

Страница 4: ...rriage Belt 53 Adjusting the Timing Belt Tnsion 54 Replacing the Timing Belt 55 Adjusting the Motor Belt Tension 56 Replacing the Motor Belt 57 Replacing the DC Motor 58 To Reset Motor Drive Time 59 A...

Страница 5: ...remove 1 Remove the setscrews and spool stand To attach 2 Attach the spool stand and tighten the setscrews Setscrews Replacing the Spool Stand To remove 1 Remove the setscrews and tension unit cover...

Страница 6: ...the LED lamp connector and K board connector To attach 4 Connect the LED lamp connector and K board connector 5 Attach the static head cover right with the two setscrews A Attach the caps 6 Attach the...

Страница 7: ...nd the hook on handwheel side 2 Remove caps and setscrews A Remove the right cover To attach 3 Attach right cover with setscrews A and caps 4 Attach the head cover right Do not bind cords when attachi...

Страница 8: ...it from the base cover To attach 3 Attach the machine into the base cover 4 Tighten the six setscrews A securely Replacing the Base Cover and Bed Cover Bed Cover To remove 1 Remove the setscrew A Rem...

Страница 9: ...rs or scratches 4 Lower guide plate a There should be no burrs or scratches 5 Needle a The needle should not be bent or blunt To check the needle Touch the tip of the needle and slide it over on your...

Страница 10: ...esser foot 8 Hook race a There should be no burrs or scratches b The tip of hook race should not be blunt c There should be no detectable play in the hook and hook race 9 Thread keeper a There should...

Страница 11: ...en the needle clamp screw 2 Remove the needle To attach 3 Insert the needle into the needle clamp with the long groove facing you Push the needle up as far as it will go 4 Tighten the needle clamp scr...

Страница 12: ...priate size of needle for threads and fabrics to be sewn An inappropriate size of needle may cause skip stitches thread breakage or loose seam Please refer to the table below and select the suitable n...

Страница 13: ...front hole in the direction of arrow measure the thread tension with a tension meter The thread tension should be in the range of 20 30gf If not adjust the thread tension by turning the adjusting scre...

Страница 14: ...clockwise until the indicator reads 0 2 mm and read the angle A of the index disk Turn the handwheel counterclockwise until the indicator reads 0 2 mm and read the angle B of the index disk Calculate...

Страница 15: ...l the needle bar main shaft up and remove it from the machine 4 Loosen the setscrew D and remove the needle bar rest from the needle bar main shaft To attach 5 Reverse the procedure above Attach the n...

Страница 16: ...up lever unit and washer 5 Loosen the setscrew Remove the cam roller shaft and cam roller To attach 6 Reverse the procedure above When attaching the thread take up lever shaft tighten the screw while...

Страница 17: ...sen the setscrew on the cam clamp and turn the take up lever cam so the positioning pin can go into the pin grove on the cam Turn the handwheel to set the index disk at 6 Tighten the setscrew on the c...

Страница 18: ...the main shaft up Remove the presser foot block unit 4 Remove the snap ring E Loosen the setscrews B 2 pcs Push the supporting shaft from the backside and pull the supporting shaft out to the front R...

Страница 19: ...18 Replacing the Presser Foot Cam 2 5 Loosen the setscrews C 2 pcs 6 Remove the setscrew B Pull the crank out to the front to remove it Setscrew C Crank unit Setscrew B...

Страница 20: ...ase MOLYKOTE R EM 30L 8 Reverse the procedure to reinstall the parts Do not attach the covers yet 9 Check the lowest position of the needle refer to page 13 of service manual 10 Adjust the position of...

Страница 21: ...TE The presser foot will spring down when the needle clamp is removed 3 Remove the setscrew and replace the presser foot 4 Attach the needle needle clamp and needle clamp cushions Tighten the needle c...

Страница 22: ...2 7 Turn the handwheel to set the index disk at 0 L 8 Insert the 1 2 mm thick gauge between the needle plate and the presser foot 9 Tighten the setscrew 10 Turn the handwheel to reset the index disk...

Страница 23: ...panel head cover 2 Remove the 2 setscrews A and the tension control unit 3 Loosen the needle clamp screw and remove the needle 4 Lower the needle bar Loosen the hexagonal socket screw and remove the...

Страница 24: ...es 30 degrees right to the front Screw the needle clamp screw through the needle clamp and into the lower hole in the needle bar Insert the needle with the long groove facing front in line with the up...

Страница 25: ...Remove the needle bar height gauge 22 Turn the hand wheel to match the alignment line on it with the joint of the right and left covers the upper shaft will be set at 270 degrees To replace the sprin...

Страница 26: ...the thread catcher connector Remove the two setscrews A setscrew B and the thread catcher To attach 3 Connect the thread catcher connector Tighten the setscrews A and setscrew B while pressing the thr...

Страница 27: ...catcher guide 3 Remove the thread catcher hook screw Remove the thread catcher hook To attach 4 Attach the thread catcher hook with the thread catcher hook screw 5 Attach the thread catcher guide with...

Страница 28: ...enoid 3 The slope cam should slide on the slope cam guide smoothly Clean the solenoid if there is any lint or dust on it 4 Attach the jump solenoid to the machine Tighten the setscrews Setscrews shoul...

Страница 29: ...rection of the arrows If there is a detectable play loosen the setscrew and tighten it while pressing the adjusting roller against the needle drop adjusting rail 3 Adjust the needle drop position see...

Страница 30: ...eft or right side of stopper screw on the rail shaft 4 Turn the idler gear to move the moving head to the end of the rail shaft with the stopper screw removed Support the moving head securely while re...

Страница 31: ...hole 9 Check the needle drop position The needle drop position should be the center of the needle hole If the needle drop position is off position to the front or rear adjust the needle drop position...

Страница 32: ...eedle bar No 3 down to engage the needle bar clutch 2 Turn the handwheel until the needle goes down into the needle hole Loosen the two setscrews Adjust the needle drop position adjusting plate Center...

Страница 33: ...e bar supporter screw 6 Insert the needle bar height gauge into the hook 7 Adjust the needle bar height so the tip of needle slightly touches the gauge 8 Adjust the direction of needle clamp as illust...

Страница 34: ...far as the desired part can be removed 4 Insert the needle bar down into the frame and put the parts on the needle bar as it goes 5 Attach the presser foot 6 Adjust the needle height see 32 7 Adjust...

Страница 35: ...22 and 23 2 Remove the six setscrews and rotation stopper plate To attach 3 Attach the rotation stopper plate with the six setscrews The setscrews should be positioned at the center of each holes when...

Страница 36: ...f the arrow Remove the thread take up lever to replace 5 Replace the thread take up lever 6 Attach the E ring 7 Insert a 0 2 mm thick gauge between the moving head case and thread take up lever Tighte...

Страница 37: ...s A and lower thread guide plate 2 Remove setscrew B two setscrews C and thread catcher panel 3 Hook the tail of the check spring into the one of three slits Use a narrow screwdriver to hook the check...

Страница 38: ...need to adjust the stroke of the check spring when it is replaced 1 Loosen the setscrew Move the adjuster up or down so the distance between the top of the check spring and the bottom side of the thre...

Страница 39: ...read catcher touches the upper surface of the lower thread catcher holder NOTE If an adjustment allowance of the thread catcher holder is not enough loosen the three setscrews B and move the thread ca...

Страница 40: ...ews B and remove the two spacers S and lower thread catcher holder 5 Peel the loop tape off Stick a new loop tape on the bottom side of the thread catcher holder aligning with the front edge of the ho...

Страница 41: ...ral moving unit To attach 6 Attach the lateral moving unit and loosely fix it with the two setscrews B 7 Push the needle bar down and rotate the handwheel to set the index disk at L 8 Adjust the posit...

Страница 42: ...set the index disk at 21 NOTE To prevent the needle from hitting the hook body hold the hook with the hook point up while turning the handwheel 5 Turn the hook to align the hook point with the right s...

Страница 43: ...en the setscrew to move the hook stopper 2 Move the hook stopper to align the center with the needle and make a 0 6 0 8 mm clearance between the hook Tighten the setscrew securely Setscrew Align the c...

Страница 44: ...t Replace the thread cutter driving roller 4 Insert the 0 05 mm thickness gauge between the lever unit and thread cutter driving roller Tighten the setscrew securely 5 Attach the lever unit to the fra...

Страница 45: ...o open the Cut Motor adjusting window Press Divide key to move the dynamic cutter blade forward 3 Loosen the setscrew and remove the drive shaft ring 4 Remove the cutter drive shaft unit from the fram...

Страница 46: ...cutter blade 4 Attach the static cutter blade and tighten the set screws while pressing the static cutter blade in the direction of the arrow NOTE If the dynamic cutter blade interferes with the left...

Страница 47: ...hould extends 0 3 to 0 5 mm from the edge of the static cutter blade If there is a gap between the edge of the static cutter blade and the dynamic cutter blade adjust the height of the static cutter b...

Страница 48: ...to the home position 4 Loosen the setscrew and turn the pivot pin to adjust the position of the dynamic cutter blade so the front tip of the dynamic cutter blade is in line with the center of the need...

Страница 49: ...he bobbin thread 3 Loosen the nut and turn the adjusting screw to adjust the clamping pressure 4 Pull the bobbin thread with a tension gauge and read the tension when the bobbin thread is coming out T...

Страница 50: ...n the bobbin Tighten the two setscrews A securely NOTE The clearance between the bobbin and the tips of the thread keeper should be 1 4 1 8 mm 4 Loosen the setscrew B and move and press the stopper ag...

Страница 51: ...600 grams when the upper portion touches the lower portion 4 If the belt tension is too tight or loose slightly loosen the two setscrews B and move the X belt pulley in the direction of the arrow to a...

Страница 52: ...shift the X belt pulley in the direction of the arrow 5 Remove the E ring and pull the X belt pulley shaft to remove the X belt pulley 6 Remove the two setscrews D and drive pulley shaft unit 7 Repla...

Страница 53: ...the base frame and push the Y carriage timing belt The gauge should read 280 grams when the upper portion touches the lower portion 4 If the belt tension is too tight or loose slightly loosen the two...

Страница 54: ...s A and shift the Y belt pulley in the direction of the arrow 4 Remove the E ring and pull the Y belt pulley shaft to remove the Y belt pulley 5 Replace the Y carriage belt 6 Attach the parts removed...

Страница 55: ...lt The gauge should read 300 grams when the belt deflect 5 mm 3 If the belt tension is too tight or loose remove the three setscrews A and CPU board then slightly loosen the two setscrews B and move t...

Страница 56: ...lt see page 57 5 Loosen the two setscrews C and remove the idler 6 Replace the timing belt 7 Attach the parts removed in steps and 5 8 Adjust the timing belt tension see the previous page 9 Check the...

Страница 57: ...illustrated and push the timing belt The gauge should read 300 grams when the belt deflect 3 mm 3 If the belt tension is too tight or loose slightly loosen three setscrews and move the motor in the d...

Страница 58: ...see pages 4 6 2 Remove the two setscrews A and the pointer 3 Remove the three setscrews B and DC motor 4 Replace the motor belt Attach the motor and motor belt 5 Adjust the motor belt tension see the...

Страница 59: ...ages 4 6 2 Disconnect the motor connector Remove the three setscrews A and DC motor 3 Attach the DC motor and tighten the three setscrews A slightly Connect the motor connector 4 Adjust the motor belt...

Страница 60: ...1302 To Reset Motor Drive Time To reset motor drive time 1 2 Press the CLEAR key to reset the motor drive time clock 3 Turn the power switch OFF A warning message will appear when the motor drive time...

Страница 61: ...nd turn it clockwise until the indication changes from L to H Tighten the set screw 4 Turn the handwheel clockwise The indication next to Needle Change should change from L to H when the index disk is...

Страница 62: ...n The indication next to NCHM Init Sen should be H To adjust the stop position loosen the setscrew and turn the stop positioning shield plate Tighten the setscrew NOTE The shield plate should not inte...

Страница 63: ...w 4 Loosen the two setscrews 5 Move the needle stop sensor to the left until the indication next to NCHM No Sen turns H 6 Move the needle stop sensor slowly to the right until the indication next to N...

Страница 64: ...des of the hoop 5 Loosen the two setscrews A slightly Move the Y carriage sensor plate slowly to the front until the indication under Y changes from H to L Tighten the two setscrews A 6 Loosen the two...

Страница 65: ...uides white under the cord guide plate Nylon clip Cable guide black Setscrew Bending the cable guide black Bend the cable guide black in line with the left edge of the cord guide plate upper part and...

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