JUKI HZL-E70 Скачать руководство пользователя | Manualshive

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Thread Cutter

Needle clamp

Feed dog

Buttonholing lever

Presser foot release lever

Needle threader

Presser foot shank

Needle

Presser foot
Hook cover release

button

Hook cover
Bobbin

Throat plate
Bobbin case

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Содержание HZL-E70

Страница 1: ...SERVICE MANUAL HZL E70 COMPUTER SEWING MACHINE ...

Страница 2: ......

Страница 3: ...16 5 1 10 Opening amount of the pre tension disk 16 5 1 11 Opening amount of the tension disk 16 5 1 12 Adjusting the needle thread tension 17 5 1 13 Tension knob 17 5 1 14 Vertical position of the threader hook 18 5 1 15 Adjusting the position of the presser lifting switch 18 5 1 16 Adjusting the position of the BH switch 19 5 1 17 Longitudinal feed 20 5 1 18 Service mode 20 WARNING When disassem...

Страница 4: ...o start again after natural cooling The machine stops with its needle down when sewing is completed The machine stops with its needle down except buttonholing The needle moves up when it is in down position and a pattern is selected The machine stops with its needle up when the reverse stitching is completed The machine stops with its needle up when the bobbin is to be wound The machine stops with...

Страница 5: ...onholes 3 Stretch buttonholes A Stretch buttonholes B Press down the threading lever and turn the hook section by hand then the lever automatically returns to the home position Sewing speed 115 rpm at low speed Straight stitching 3 stitches forward and 3 stitches backward at the start of sewing S S SW 3 stitches backward and 3 stitches forward at the end of sewing REV SW Max feed amount 2 6 mm In ...

Страница 6: ...iliary bed Stitch width manual button Stitch width adjusting lever Stitch length manual button Stitch length adjusting lever Automatic lock stitch button Reverse stitch button Start stop button Drop feed lever Stitch selection button Stitch selection panel Presser foot lever Light Power switch Hand wheel pulley Handle Pattern adjusting shaft Speed controller receptacle Power cord receptacle ...

Страница 7: ...4 4 Thread Cutter Needle clamp Feed dog Buttonholing lever Presser foot release lever Needle threader Presser foot shank Needle Presser foot Hook cover release button Hook cover Bobbin Throat plate Bobbin case ...

Страница 8: ... 1 in the face cover and remove the face cover Remove setscrews 2 and 3 in the throat plate and remove the throat plate Remove setscrews 4 5 and 6 in the rubber cushion of the base plate setscrew 7 of the base plate and height adjusting screw 8 Base plate is removed Remove setscrew 9 in the free arm bottom cover 1 2 3 6 5 4 7 8 9 ...

Страница 9: ...as asm Lift the presser lifting lever when removing screw 15 Remove setscrew upper 16 in the thread spool cover and setscrew side 17 in the thread spool cover Lower the thread take up support and insert a screwdriver from the face cover side to remove setscrew side 17 in the thread spool cover Open the rear panel in the rear and remove the thread spool cover upward Thread take up support 10 11 12 ...

Страница 10: ... winder 20 in the front panel main unit after removing the thread spool cover There are hooking sections on the rear sides of both front and rear panel as illustrated in the figures below They are engaging with the frame holes and engaging with the respective covers mark section marksection 18 20 19 Rear panel Front panel Rear panel Front panel Rear panel Front panel Rear panel Front panel ...

Страница 11: ...he rear panel and the joint section of the whole panel is removed Note Remove the rear panel so as to bring the rear panel near the hand wheel side at the place of the power switch installing plate since there is a convex shape on the rear panel Front panel Remove the convex sections of the front panel and the rear panel from the frame so as to move the convex sections up from the frame in the sam...

Страница 12: ...5 Power circuit board connecting wire asm CN51 Power switch Fuse 3 15A 250V CN53 Power transformer CN54 Motor asm CN31 Slide Volume asm CN32 S S switch circuit board asm CN 3 CN 5 CN 6 CN 8 CN 1 CN 2 CN 4 CN 7 CN 9 CN10 CN52 Lamp asm Fuse 2A 125V CN55 Power circuit board connecting wire asm CN51 Power switch Fuse 5A 125V CN53 Power transformer CN54 Motor asm ...

Страница 13: ... shaft detecting circuit board asm Connector No CN 6 CN 7 CN 8 CN 9 CN 10 Connection Display circuit board asm Power circuit board connecting wire asm Controller receptacle asm Needle throw STM asm Feed STM asm 10 10 10 10 10 Table of microcomputer circuit board connectors Connectiondiagram Feed and needle throw STM φ1 RED φ3 BROWN YELLOW φ2 BLUE φ4 ...

Страница 14: ... and adjust the height of the needle bar in the same way as the adjusting procedure above so that a distance of 14 83 mm is provided between the top surface of the throat plate and the tip of the needle when the needle bar is in the highest point of its stroke Setscrew 1 can be loosened at the position where the needle bar is in the lowest point of its stroke Adjustment How to adjust 1 How to adju...

Страница 15: ...comes down when it is pressed from the upper side How to adjust Screwdriver When shaft b is loosened shaft a comes in contact with the cam and a clearance is provided between the cam and the top end c of the shaft 5 1 4 Timing belt Remove the outer components Front cover rear cover and face cover 1 Loosen the setscrew in the idler installing base and loosen the tension of the timing belt 2 Turn th...

Страница 16: ...ce of thethroat plate when the feed dog meets with the top surface of the needle plate The tolerance is within the range of the tip of the needle to the lower end of the needle hole 5 1 6 Needle to hook timing Remove the throat plate base plate free arm bottom cover and DF installing base 1 First make sure that the needle entry position and the height of the needle bar have been properly adjusted ...

Страница 17: ...y tighten both of the setscrews 4 Set DF installing base asm while placing click section 2 places of DF installing base asm in the grooves of vertical feed cam and vertical support cam respectively 5 Temporarily tighten two setscrews of DF installing base 6 Adjust DF installing base asm to the position where the clearance between the edge of hook driving shaft metal and the edge of vertical feed c...

Страница 18: ... the needle bar lateral adjusting plate asm and move the needle bar lateral adjusting plate asm to the left or right to adjust the clearances How to adjust Drive body stop shaft Blade point of hook 5 1 8 Position of the bobbin case stopper plate Remove the throat plate 1 On condition that the bobbin case is set to the outer hook loosen setscrew 3 and determine the longitudinal position of the bobb...

Страница 19: ...ion disk so that the pre tension disk opens approximately 1 mm when the presser lifting lever is raised In addition the tension of the pre tension is a fixed type and cannot be adjusted How to adjust 5 1 11 Opening amount of the tension disk Remove the face cover and the front panel 1 Turn the adjusting screw in the thread tension disk floating plate and adjust so that the clearance between tensio...

Страница 20: ... How to adjust 5 1 13 Tension knob The tension knob has the structure which can make the correction when the needle thread tension is desired to be corrected after assembling the front panel and the thread spool cover 1 In case of increasing the needle thread tension 1 Turn the tension knob in the direction of a until it comes in contact with the stopper 2 Move shift the tension knob to the right ...

Страница 21: ... is a case where the threading cannot be peformed according to the needle size 4 Checking the position in terms of the needle eyelet perform the adjustment When the hook goes in and out the needle eyelet the needle should not be bent by the hook When the hook shifts in the lateral direction perform the correction of the bend of the hook using the tip of a small screwdriver or the like or replace t...

Страница 22: ...crews 1 and 2 in the BH switch base 5 Move the switch base and adjust so that the clearance with the asterisk mark is 0 2 to 0 4 mm 6 Put a sheet of paper under the BH presser perform idle stitching without threading and check the return position and the stopping position of BH Perform re adjustment if there is any trouble If these tests are OK perform threading and sewing test of BH How to adjust...

Страница 23: ...ern adjusting knob to adjust so that at the third sewing pattern the bottom end of the first return pattern from the left and the bottom end of the third return pattern are on the same line tolerance 0 5 mm as illustrated in the figure below 4 Sew BH buttonhole and check the stitch length Preparation for adjustment How to adjust the sewing conditions Start of sewing Pattern adjusting shaft 5 1 18 ...

Страница 24: ...N HOME APPLIANCE H Q 8 2 1 KOKURYO CHO CHOFU SHI TOKYO 182 8655 JAPAN PHONE 81 3 3480 5034 FAX 81 3 3480 5037 04 01 Printed in Japan E Copyright 2004 JUKI CORPORATION All rights reserved throughout the world 29366002 ...

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