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JUKI HZL-30Z Service Manual

Portable zigzag sewing machine
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Portable Zigzag Sewing Machine
HZL-30Z
SERVICE MANUAL

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Summary of Contents for JUKI HZL-30Z

  • Page 1 Portable Zigzag Sewing Machine HZL-30Z SERVICE MANUAL...

  • Page 2: Table Of Contents

    CONTENTS [1] PRODUCT SPECIFICATIONS FOR HZL-30Z ································ 1 [2] NAMES OF THE RESPECTIVE COMPONENTS ·························· 2 [3] HOW TO REMOVE THE OUTER COMPONENTS ······················· 3 [4] ADJUSTMENT OF THE RESPECTIVE COMPONENTS ·············· 7 Adjusting the needle bar height ························································· 7 Adjusting the zigzag width needle entry position ····························...

  • Page 3: Product Specifications For Hzl-30Z

    [1] PRODUCT SPECIFICATIONS FOR HZL-30Z [Power source] • 220-230V AC common to 50/60 Hz • Power switch : ON/OFF 2-step type [Power consumption] • 85W (Lamp : 240V/15W) [Dimensions and weight] • Dimensions : 410 mm (W) X 180 mm (L) X 300 mm (H) •...

  • Page 4: Names Of The Respective Components

    [2] NAMES OF THE RESPECTIVE COMPONENTS Spool pin Thread spool cap Bobbin winder shaft Bobbin thread guide Bobbin winding regulator Thread tension dial Stitch length dial Face cover Reverse stitch lever Pattern display panel Auxiliary bed Handle Hand wheel Presser foot lever Cover for buttonhole adjusting Stitch pattern dial...

  • Page 5: How To Remove The Outer Components

    [3] HOW TO REMOVE THE OUTER COMPONENTS Remove setscrew (1) in the face cover and 1. Face cover remove the face cover. Remove setscrews (2) and (3) in the throat plate and 2. Throat plate remove the throat plate. 3. Base plate and free arm bottom cover 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).
  • Page 6 4. Front panel and rear panel Remove setscrews (bottom) (10) and (11) in the front panel (Mas. asm.). (10) (11) Remove setscrews (12), (13) and (14) in the rear panel (asm.) and setscrew (rear) (15) in the front panel (Mas. asm.). (Lift the presser lifting lever when removing screw (15).) (13) (12)
  • Page 7 Loosen setscrew (front) (18) in the front panel (Mas. asm.), 6. Front panel setscrew (right) (19) in the front panel main unit and setscrew (bobbin winder) (20) in the front panel main unit after removing the thread spool cover. Draw out pattern dial (21) knob. (20) (18) (19)

  • Page 8: Rear Panel

    On condition that the presser lifting lever is lowered, open a little bit the joint section of the front and rear covers as illustrated in the figure below. (Rear 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 as illustrated in the figure below.

  • Page 9: Adjustment Of The Respective Components

    [4] ADJUSTMENT OF THE RESPECTIVE COMPONENTS 4-1 Adjusting the needle bar height Remove the face cover. Adjustment • Dimension from the bottom end of the needle bar pin to the top surface of the throat plate : 19.7 mm • The needle eyelet inclines to the right by 5° when a needle is attached. How to adjust 1 1.

  • Page 10: Adjustment Of The Straight Stitch Lock

    4-3 Adjustment of the straight stitch lock When selected the straight stitch (left-side needle line or central needle line), adjust the lateal play of the needle bar. Remove the front cover. (Including the front cover, throat plate, bottom cover and rear cover) Adjustment 1.

  • Page 11: Needle Throw

    4-4 Needle throw How to check the needle throw 1. Turn the stitch pattern dial, and select the zigzag width (maximum zigzag width). 2. Turn the hand wheel, and check the locus of the tip of the needle. 3. After the needle has gone up from the lowest point and reached the upper face of the throat plate, the tip of the needle should throw to the right or left.

  • Page 12: Feed Dog Height

    4-5 Feed dog height Remove the throat plate. How to adjust 1. Set the feed amount to “0”. 2. Turn the hand wheel and bring the feed dog to its highest point. 3. Loosen shaft [ b ] and make a clearance between the cam and the top end of the shaft as illustrated in the figure.

  • Page 13: Feed Timing

    4-7 Feed timing After checking the feed dog height and needle bar height, perform this adjustment. The feed timing will affect the tightness of the needle thread. How to adjust 1. Attach HA x 1 #14 needle. Upper side in the rear 2.

  • Page 14: Clearance Between The Needle And The Blade Point Of The Hook

    4-9 Clearance between the needle and the blade point of the hook Remove the face cover and the throat plate. How to adjust 1. Set the machine to the zigzag pattern (large) (zigzag width 5 mm). Raise the needle bar by hand from the lowest point of its stroke and make sure that the clearance provided between the blade point of the hook and the needle is 0.05 mm to 0.1 mm at the left and right needle entry points when the blade point of the hook comes to the rear of the center of the needle.

  • Page 15: Adjusting The Bobbin Thread Tension

    4-11 Adjusting the bobbin thread tension Remove the throat plate. How to adjust 1. Position the bobbin case and the tension gauge as illustrated and adjust the adjusting screw (4) so that the tension is 0.1862±0.0098 [N] (19g±1g) with SHAPPE #60 thread.

  • Page 16: Adjusting The Needle Thread Tension

    4-13 Adjusting the needle thread tension Remove the face cover and the front panel. How to adjust 1. Remove the tension knob fixing E ring and remove the thread tension dial presser, the tension knob and the tension cam. 2. Prepare SHAPPE SPAN # 60 and the tension gauge, and pass needle thread from the base tension to the tension disk.

  • Page 17: Vertical Position Of The Threader Hook

    4-15 Vertical position of the threader hook How to adjust 1. Attach a household needle HA X 1 #11. 2. Turn the hand wheel to bring the needle bar near the highest point of its stroke, loosen the setscrew in the threader hook holder and adjust the threader hook holder in the vertical direction.

  • Page 18: Super Stitch Pattern

    4-17 Super stitch pattern How to adjust 1. Select the hemming pattern and perform a trial sewing. 2. Check that the needle enters into the same needle entry holes of the left-side in forward/backward stitches. 3. Insert a screwdriver into the small hole of the bottom cover and turn the adjusting screw.

  • Page 19: Button Hole

    4-19 Button hole Remove the cover for adjusting the button hole. Bar tacking adjustment How to adjust 1. Use the button hole foot and sew a button hole. 2. Turn the adjusting screw located at the upper left side from the hole for adjusting the button hole with a screwdriver so that the feed amount of bar tacking should be 0 to 1.5 mm.
  • Page 20 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 Copyright © 2004 JUKI CORPORATION. All rights reserved throughout the world. 29366200 04.01 Printed in Japan...

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