JUKI HZL-35Z Service Manual
  1. Manuals
  2. Brands
  3. JUKI Manuals
  4. Sewing Machine
  5. HZL-35Z
  6. Service manual

JUKI HZL-35Z Service Manual

Hide thumbs Also See for HZL-35Z:

Advertisement

Table of Contents

See also: Instruction Manual
®
SEWING MACHINE
HZL-35Z
SERVICE MANUAL

Advertisement

Table of Contents
loading

Related Manuals for JUKI HZL-35Z

Summary of Contents for JUKI HZL-35Z

  • Page 1 ® SEWING MACHINE HZL-35Z SERVICE MANUAL...

  • Page 2: Face Cover

    SECTION PAGE [ 1 ] DISASSEMBLING OF OUTER PARTS 1. Face cover Disassembling 1. Remove screw (1) and take out face cover (2). ( 5 ) ( 2 ) ( 3 ) ( 1 ) ( 4 ) ( 6 ) Re-assembling 1.
  • Page 3 SECTION PAGE 2. Spool Pin Stand Disassembling 1. Remove screw (1) and take out spool pin stand (2). ( 1 ) ( 2 ) * Re-assembling should be done in the reverse way.
  • Page 4 SECTION PAGE 3. Terminal Cover Disassembling 1. Remove each screw (1) and take out terminal cover (2). * Note that cord is connected inside of the cover. ( 2 ) ( 1 ) * Re-assembling should be done in the reverse way. * While re-assembling, any cord and timing belt should not be connected each other.

  • Page 5: Base Cover

    SECTION PAGE 4. Base Cover 1. Lay machine on its back. 2. Remove 4 screws (1) and take out base cover (2). ( 2 ) ( 1 ) * Re-assembling should be done in the reverse way.

  • Page 6: Bottom Cover

    SECTION PAGE 5. Bottom Cover 1. Lay machine on its back. 2. Remove screw (1) and take out base cover (2). ( 2 ) ( 3 ) ( 1 ) * Re-assembling should be done in the reverse way. Feed dog control (3) should be set at up position ( ) before re-assembling.

  • Page 7: Bed Cover

    SECTION PAGE 6. Bed Cover 1. Remove presser foot and needle plate. 2. Turn hand wheel toward you until needle comes to its highest point. 3. Lay machine on its back. 4. Remove bottom cover from free arm. (See page 5) 5.

  • Page 8: Front Cover

    SECTION PAGE 7. Front Cover 1. Remove face cover and base cover (see page 1 and 5). 2. Remove stitch length dial (1). 3. Loosen screws (5 and 6) and remove screws (7 and 8). 4. Remove front cover (9) from face cover side, as stitch length dial shaft is sticking out.

  • Page 9: Back Cover

    SECTION PAGE 8. Back Cover 1. Remove face cover, spool pin stand and base cover. (See page 1, 2, 5) 2. Remove 7 plus screws (1) and minus screws (2). 3. Remove screw (3) and turn presser foot lever (4) toward face cover. 4.
  • Page 10 SECTION 2 - 0 PAGE [ 2 ] ADJUSTMENTS * Adjustment can be made with or without removal of outer parts. With removal of outer parts Without Spool Adjustment removal Front Back Face Needle Bottom Base Terminal of parts cover cover cover cover...
  • Page 11 SECTION 2 - 1 PAGE 2 - 1 L - Positioner Checking: 1. Move the needle to the left end by hand. 2. Check if the needle touches the left end of needle hole of needle plate. NOTE: * Needle will be broken if needle is outside of left end of needle hole. NOTE: * Selector dial can not be turned smoothly if there is clearance over 0.3mm between left end of needle hole and needle.
  • Page 12 SECTION 2 - 2 PAGE 2 - 2 Needle Position at Straight Stitching Checking: 1. Remove presser foot. 2. Set machine for straight stitching at center needle position. 3. Turning hand wheel by hand, lower the needle and check if needle point comes to the center of needle plate hole.
  • Page 13 SECTION 2 - 3 PAGE 2 - 3 Needle Position at Zigzag Stitching NOTE: This adjustment is only for model with stitch width control. Before checking, follow 2 - 2 "Needle position at straight stitching". Checking: 1. Remove presser foot. 2.
  • Page 14 SECTION 2 - 4 PAGE 2 - 4 Maximum Zigzag Width NOTE: This adjustment is only for model with stitch width control. Follow 2 - 2 "Needle position at straight stitching" and 2 - 3 "Needle position at zigzag stitching" before checking. Checking: 1.

  • Page 15: Needle Side Motion

    SECTION 2 - 5 PAGE 2 - 5 Needle Side Motion Checking: 1. Set stitch width control at maximum. 2. Bring needle to right-hand lowest position. Slowly lift up needle and observe its leftward movement when leaving upper surface of needle plate. 3.
  • Page 16 SECTION 2 - 6 PAGE 2 - 6 Clearance between Zigzag Cam and Cam Follower Checking: 1. Remove presser foot. 2. Set machine at maximum zigzag width. 3. Lower needle to its left lowest position. 4. Turn selector dial towards you (anti-clockwise) and set it between "zigzag stitching"...

  • Page 17: Feed Dog Height

    SECTION 2 - 7 PAGE 2 - 7 Feed Dog Height Checking: 1. Set stitch length control at maximum. 2. Remove needle and presser foot. 3. Set feed dog at highest position by turning hand wheel by hand. 4. Check to see if feed dog height (A) is 0.89 - 1.09 mm above needle plate. Adjustment: 1.
  • Page 18 SECTION 2 - 8 PAGE 2 - 8 Space Between Feed dog and Hole of Needle Plate Checking: 1. Set stitch length control at maximum. 2. Confirm feed dog does not touch with to needle plate. 3. Confirm feed dog is parallel to needle plate hole. 4.

  • Page 19: Feed Dog Timing

    SECTION 2 - 9 PAGE 2 - 9 Feed Dog Timing 1) Vertical Movement NOTE : Before checking, follow Section 2 - 7 “Feed Dog Height”. Checking: 1. Set stitch length at "maximum". 2. Lower needle by turning hand wheel. 3.

  • Page 20: Lateral Movement

    SECTION 2 - 9 PAGE 2) Lateral Movement NOTE : Before checking, follow Feed dog Timing (vertical movement). Checking: 1. Set stitch length at maximum. 2. Turn hand wheel until feed dog is about to start to move (when cam (1) starts to activate feed regulating arm).
  • Page 21 SECTION 2 - 12 PAGE 2 - 12 Buttonhole Sewing - '0' Feeding Checking: 1. Set buttonhole fine turning adjuster at the center position. 2. Sew buttonhole using buttonhole foot. 3. Check to see if bartack does not move either backward or forward and keeps the same position.
  • Page 22 SECTION 2 - 13 PAGE 2 - 13 Balance of Stitch Length- Stretch Stitching Checking: 1. Set stitch width control at the maximum position and stitch selector at zigzag stitch. 2. Set for "stretch stitching ( )" by turning stitch length control. 3.

  • Page 23: Presser Foot Height

    SECTION 2 - 14 PAGE 2 - 14 Presser Foot Height Checking: 1. Lower feed dog below the needle plate. 2. Lift up presser foot lever. 3. Check and see if clearance (A) between needle plate and presser foot is 5.5 - 6.0 mm.

  • Page 24: Needle Height

    SECTION 2 - 15 PAGE 2 - 15 Needle Height Checking: 1. Remove presser foot. 2. Set machine for straight stitch at center needle position. 3. Check to see if the distance between needle point and needle plate surface is about 15.1 - 15.7 mm. 15.4 Adjustment: 1.

  • Page 25: Needle Clearance To Shuttle

    SECTION 2 - 16 PAGE 2 - 16 Needle Clearance to Shuttle Checking: 1. Remove bobbin case and needle plate. 2. Set #14 needle. 3. Set machine for zigzag stitch at maximum. 4. Turning hand wheel until needle is moved to left side and shuttle point to the rear of needle hole.

  • Page 26: Needle Timing To Shuttle

    SECTION 2 - 17 PAGE 2 - 17 Needle Timing to Shuttle NOTE: Before checking, follow Section 2 - 3 "Needle position at Zigzag Stitching (Vertical movement)", 2 - 9 "Feed Dog Timing", 2 - 15 "Needle Height". Checking: 1. Remove bobbin case and needle plate. 2.
  • Page 27 SECTION 2 - 18 PAGE 2 - 18 Adjustment of Stitch Selector Checking: 1. Turning stitch selector, check if pointer is set in correct position of window on control panel. A A A A A B B B B B Adjustment for slight deviation: 1.

  • Page 28: Belt Tension

    SECTION 2 - 19 PAGE 2 - 19 Belt Tension NOTE: Belt tension should be adjusted in case of belt jumping on heavy material sewing or slow rotation. Reference: * Belt is bent about 7mm when it is pushed by pressure of 200g between upper shaft and motor.
  • Page 29 SECTION 2 - 20 PAGE 2 - 20 Hooking Fork Position of Needle Threader Checking: ( 3 ) 1. Check and see if #14 needle is used and it is not bent. 2. Set machine for Straight Stitch at center needle position.
  • Page 30 SECTION 2 - 20 PAGE Exchange of needle hole threader lever: 1. Remove presser foot. 2. Raise needle to its highest position. 3. Push needle hole threader lever down by pliers or forked driver as illustrated. 4. Remove needle hole threader lever (3). Knock pin ( 3 )
  • Page 31 SECTION 2 - 21 PAGE 2 - 21 Bobbin Winder 1) Winding balance Checking: 1. Wind thread on the bobbin. 2. Check if the thread is wound evenly. Adjustment: 1. Insert box driver (hexagonal box driver, etc.) into the bobbin winder shaft and bend it.
  • Page 32 SECTION 2 - 22 PAGE 2 - 22 Buttonhole Changer NOTE: This adjustment is only for model with one-step buttonholing system. Checking: 1. Check to See if there is no trouble in changing direction from backward to forward and vice versa while sewing buttonhole. Adjustment: 1.

  • Page 33: Rubber Foot Height

    SECTION 2 - 23 PAGE 2 - 23 Rubber Foot Height Checking: 1. Put the machine on the flat table. 2. Check the balance of the machine. ( 1 ) Adjustment: Insert the driver into the hole (1) and adjust by turning it. ( 1 ) P.No.
  • Page 34 8-2-1, KOKURYO-CHO, CHOFU-SHI, TOKYO 182-8655, JAPAN PHONE: 03(3480)5034 FAX: 03(3480)5037 © Copyright 2006 JUKI CORPORATlON http: //www.juki.co.jp All right reserved throughout the world. E-mail: hsm@juki.co.jp 40054741 2006/08...

Table of Contents