Husqvarna VIKING Designer Jade 20 Service Manual
  1. Manuals
  2. Brands
  3. Husqvarna Manuals
  4. Sewing Machine
  5. VIKING Designer Jade 20
  6. Service manual

Husqvarna VIKING Designer Jade 20 Service Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

SERVICE MANUAL
Designer Jade 20
Made in Sweden
10 Nov 2015
1047356-26

Advertisement

Table of Contents
loading

Related Manuals for Husqvarna VIKING Designer Jade 20

Summary of Contents for Husqvarna VIKING Designer Jade 20

  • Page 1 SERVICE MANUAL Designer Jade 20 Made in Sweden 10 Nov 2015 1047356-26...

  • Page 2: Table Of Contents

    Contents IMPORTANT SAFETY INSTRUCTIONS ....................5 Directions for use ..........................6 ESD 6 Service tools ........................... 7 Settings - Quick reference ......................... 8 1.Belt tension - drive belt ........................ 10 2.Motor Belt tension ........................11 3.Timing of the Feeding in relation to the needle ................12 4.Setting the needle in centre position .....................
  • Page 3 1047356-26...
  • Page 4 This household sewing machine is designed to comply with IEC/EN 60335-2-28 and UL1594 IMPORTANT SAFETY INSTRUCTIONS When using an electrical appliance, basic safety precautions should always be followed, including the following: Read all instructions before using this household Sewing machine. DANGER –...

  • Page 5: Important Safety Instructions

    Directions for use These service instructions are intended to be used by service workshop personnel, or by salesmen who carry out servicing in their own districts. They assume a thorough knowledge of the handling of precision appliances and accessibility to service tools. The manual is divided into four sections and covers all service operations and checks which should be carried out when making a complete overhaul of a sewing machine.

  • Page 6: Directions For Use

    Service tools A reasonable requirement in a domestic sewing machine is that it should able to sew all types of fabrics used in the home. The settings made when assembling and sewing-in the machines are those most suited to give the best results in the majority of fabrics and fabric combinations. In doing so, consideration has been given to the requirements of different markets.
  • Page 7 1047356-26...

  • Page 8: Settings - Quick Reference

    Settings - Quick reference Settings - Quick reference Belt tension, drive belt 350-400g The belt tension shall be adjusted by re-position tensioning roller by push it up or down until it is a fi rm belt tension. Belt tension, motor belt Move the motor unit (b) util a correct belt tension is obtained.
  • Page 9 Settings - Quick reference 13. Threading device 0.1 mm With a new # 70 needle the threader hook should go smoothly into the needle eye. 14. Lower thread tension (thread tension of the bobbin case) The thread tension spring of the bobbin case shall give a resistance of 17 g when pulling the thread slowly, using normal polyester thread.

  • Page 10: Belt Tension - Drive Belt

    Settings 1.Belt tension - drive belt Check The fl at-toothed belt must be set so that the sewing hook has no play in its rotating direction, but it must be possible to turn the machine easily or the timing of hook and feed motion will be changed incorrectly. Adjustment 1.

  • Page 11: Motor Belt Tension

    Settings 2.Motor Belt tension Too tight or too loose motor belt tension can cause belt noise. Too tight motor belt tension can make the machine to run slow and overload the motor. Too loose motor belt tension may cause jumping of the belt teeth on the motor pulley. Check When pushing the motor belt must have fl...

  • Page 12: Timing Of The Feeding In Relation To The Needle

    Settings 3.Timing of the Feeding in relation to the needle Check 1. Remove all covers. 2. Turn the handwheel toward you until the needle is its lowest point. At this time, the mark (a - very small molded line on edge) on the lower shaft timing pulley must be facing toward you.

  • Page 13: Setting The Needle In Centre Position

    Settings 4.Setting the needle in centre position Check 1. Insert a new needle size 90 universal in the machine. 2. The needle should always go its to the centre position, when the machine is turned on repeatedly. Adjustment 1. Remove the light cover. 2.

  • Page 14: Position Of Needle Point To Limiting Plate

    Settings 5.Position of needle point to limiting plate The needle point limiting plate is protecting the needle hits the needle plate. Check Set the pattern to [Straight stitch No.1] and set the needle position to the extreme right (3.5). 1. Remove the presser foot and light cover. 2.

  • Page 15: Play Between Hook Gear And Lower Shaft Gear

    Settings 6.Play between Hook gear and lower shaft gear If there is too much play on the hook gear on the turning direction, it may be the cause for machine not to sew properly and/or making excessive sewing noise. It is impossible to obtain an equally large play in one rotation of the cog wheel, but it should be as small as possible at the tightest spot during the revolution.

  • Page 16: The Timing Of The Hook In Relation To The Needle

    Settings 7.The timing of the hook in relation to the needle Check 1. Set a new needle size 90 universal into the machine. 2. Choose the pattern 1. Set machine on straight stitching. 3.Remove the needle plate, bobbin case holder and the bobbin case. 4.Set the needle bar at its lowest point.

  • Page 17: The Gap Between The Needle And The Hook

    Settings 8.The gap between the needle and the hook If the needle hits against the hook, it may be the cause of needle and thread breakages. If the gap between needle and hook is too big, it will cause to skip stitches. Check 1.Choose the straight stitch pattern and move the needle position to the left (-3.5).

  • Page 18: Setting The Feed Dog In Relation To The Needle Plate

    Settings 9.Setting the feed dog in relation to the needle plate Check Sideways the feed dog should be symmetrically set in relation to the needle plate slot. Adjustment 1. Remove the presser foot and holder. 2. Remove the needle plate. 3.

  • Page 19: Feed Dog Height

    Settings 10.Feed dog height Check 1.Bring the feed dog to its highest position. 2.The top of the feed dog should be 0.9-1.0 mm above the needle plate. Check with setting gauge 63-112 120 08/000. 0.9-1.0 mm Adjustment 1.Bring the feed dog to its highest position. 2.Remove needle plate 3.Loosen the nut (A).

  • Page 20: Presser Foot Height And Parallelism To The Needle Plate

    Settings 11.Presser foot height and parallelism to the needle plate Check When the presser foot is in its highest lifting position it shall be 6.5 mm above the needle plate and in its down position the presser foot should be parallel to the feed dog. 6.5 mm Adjustment 1.Put on a presser foot.

  • Page 21: The Needle Bar Height

    Settings 12.The needle bar height Check 1.Remove needle plate and bobbin case. 2.Set the pattern to [Straight stitch No.1] which is straight stitch on center needle position. 3.Turn the handwheel toward you until the needle comes to its lowest point. 4.Then, the gap between the upper end of the needle and surface of the hook race should be 29 mm 29 mm±0.1mm Adjustment...

  • Page 22: Height Of Needle Threader

    Settings 13.Height of needle threader f the height of needle threader is not correct, the hook on threader will not enter the needle eye Check 1.Insert a new # 70 needle. 2.Bring the needle bar to its highest turning position. 3.The threader hook (C) shall go smoothly into the needle eye.

  • Page 23: Lower Thread Tension (Thread Tension Of The Bobbin Case)

    Settings 14.Lower thread tension (thread tension of the bobbin case) Check 1. Insert a full bobbin into the bobbin case. 2. The thread tension spring of the bobbin case shall give a resistance of 17 g when pulling the thread slowly, using normal #50 polyester thread.

  • Page 24: Upper Thread Tension

    Settings 15.Upper thread tension Check 1. Set the thread tension dial to ”4”. 2. Thread the Polyester #60 thread using ordinary threading route until pass through the thread tension discs. 3. Lower the presser foot. (Tension discs will be closed) 4.

  • Page 25: Stitch Length Balance Basic Setting

    Settings 16. Stitch length balance basic setting Check 1.Remove the all the covers. 2. Remove the Feed unit from machine. 3. Connet the Feed unit to PC Board 4. Take the front cover and connected it. Lay it on top of the casting. 5.

  • Page 26: Darning Stitch Position Adjustment

    Settings 17.Darning stitch position adjustment When stretch stitch sewing, the lengths of the forward and reverse stitches should be the same. Check 1. Go to service program by pressing the stitch number 2 and Mirror button, turn on the power switch. ”P1” will appear and service program ”Feed adjust ”...

  • Page 27: Bh Photo Sensor Position Adjustment

    Settings 18.BH photo sensor position adjustment Check 1. If the machine dose not sew even with the buttonhole lever all the way down, it means that the buttonhole lever is not positioned properly. Also, if the buttonhole lever is not positioned properly, the machine will sew buttonhole as shown or incorrectly.

  • Page 28: Adjustment Of Bobbin Winding

    Settings 19.Adjustment of bobbin winding Check When winding up the lower thread onto the bobbin the machine should wind even. Adjustment Place empty bobbin on spindle. If bobbin winds as shown, turn the screw (a) to the left (-). If bobbin winds as shown, turn the screw (a) to the right (+). 1047356-26...

  • Page 29: Adjustment Of Bobbin Winder Stop

    Settings 20.Adjustment of bobbin winder stop Check When winding up the lower thread onto the bobbin the machine should stop when there is a min. of 1 mm between the edge of the bobbin and the thread. Adjustment 1. If the bobbin thread is wound too little or too much, loosen the screw (b) near bobbin winder and adjust as follows.

  • Page 30: Service Program

    Service Program Jade 35 Service Program In order to facilitate the checking and setting of the different functions of the machine, there is a service program. Service Menu 1 - Stepper Motors Entering service menu 1. With pressing the stitch width “-” button and Mirror button, turn on the power switch. ”S.1”...

  • Page 31: Service Menu 2 - Running-In Mode

    Service Program Jade 35 Service Menu 2 - Running-in mode Entering service menu 2. With pressing the stitch selection button 1 and Mirror button, turn on the power switch. “P4” will appear and service menu 2 will start. This mode is used at the factory Service Menu 3 - Adjusting forward reverse stitch Entering service menu 3.

  • Page 32: Service Menu 5 - Test Pattern

    Service Program Jade 35 Service Menu 5 - Test Pattern Entering service menu 5. With pressing the stitch selection button 4 and Mirror button, turn on the power switch. “P1” will appear and service menu 5 will start. Test patterns are selected by pressing the stitch selection button. Each pattern is indicated as follows. Key No 1 (P1) Forward reverse adjusting pattern (Same as menu 3) Key No 2 (P2)

  • Page 33: Service Menu 6 - Sensor Test

    Service Program Jade 35 Service Menu 6 - Sensor test Entering service menu 6. With pressing the stitch selection button 5 and Mirror button, turn on the power switch. Service program ”Sensor test” will start. First digit of 7 segment LED will indicate the sensor condition as follows. a.

  • Page 34: Service Menu 7 - Keyboard Test

    Service Program Jade 35 Service Menu 7 - Keyboard test Entering service menu 7. With pressing the stitch selection button 6 and Mirror button, turn on the power switch. Service program ”Keyboard test” will start. By pressing the each button, 7 segment LED will indicate the number as follows. 1047356-26...

  • Page 35: Service Menu 8 - Software Version

    Service Program Jade 35 Service Menu 8 - Software version Entering service menu 8. With pressing the stitch selection button 7 and Mirror button, turn on the power switch. Software version will be indicated on the display. Service Menu 9 - IC number Entering service menu 9.

  • Page 36: Removing The Covers

    Covers Removing the covers NOTE! Before adjusting or repairing the machine, make sure to: - Disconnect the machine’s main plug. - Remove needle and presser foot. - Remove detachable work support. A. Light Cover 1. To remove the storage box, turn the locking device located at the rear side of the box to the left and push the box forward.

  • Page 37: Thread Tension Cover

    Covers B. Thread Tension Cover 1. Remove the screw (a). 2. Remove the thread tension cover. C. Needle Plate 1. Raise the presser foot and remove it. 2. Remove the 2 screws (a, b) holding the needle plate. 3. Lift up the right side of needle plate and remove it. D.

  • Page 38: Front Enclosure

    Covers E. Front Enclosure 1. Remove the screw (a) located on the top right side of machine. 2. Loosen the screw (b) located on the top left side of machine. 3. Loosen the screw (c) located left side of the machine arm.
  • Page 39 Covers 7. Pull the front enclosure (g) and come off the hook. 8. Grasp the unit cover (h or i) and pull the front enclosure, each hook will come. hook 9. Push the rear enclosure (j), pull the front enclosure to the left (the hook-k will come off).

  • Page 40: Unit Cover

    Covers 12. Pull up the both black parts located on the connector (n) and pull off the cable. F. Unit Cover 1. Remove the screws (a,b,c). 2. Remove the screw caps (d,e), remove each screw. 3. Push the unit cover (i, j, k) to Rear Enclosure remove the hooks (f, g, h).

  • Page 41: Top Cover

    Covers G. Top Cover 1. Pull the top cover to left side hinge (a) toward outside. 2. Pull the top cover to right side hinge (b) toward outside, remove the top cover. H. Rear Enclosure 1. Lower the presser foot lifter. 2.

  • Page 42: Electrical Parts Connection

    Electronics Electrical Parts Connection a. LED Board Assy. b. Presser Foot Switch Assy. c. Buttonhole Switch Assy. d. Bobbin Winder Switch Assy. e. Junction Circuit Board Assy. f. Presser Foot Jack Assy. g. Power Circuit Unit h. F Pulse Motor i.

Table of Contents