ELNA 3210 Service Manual
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ELNA 3210 Service Manual

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ELNA
3210 - 3230
SERVICE MANUAL
07/03
Printed in Switzerland
395 903-12

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Summary of Contents for ELNA 3210

  • Page 1 ELNA 3210 - 3230 SERVICE MANUAL 07/03 Printed in Switzerland 395 903-12...

  • Page 2: Table Of Contents

    Elna International Corps. SA 3210 / 3230 Service manual Contents What to do when Service Access Face Cover Top Cover Belt Cover Base Front Cover Rear Cover Mechanical Adjustment Needle Thread Tension Presser Bar Height and Alignment Needle Swing in Straight Stitch Sewing...
  • Page 3 Elna International Corps. SA 3210 / 3230 Service manual CONDITION CAUSE HOW TO FIX REFERENCE 1. Skipped 1. Needle is not inserted Insert the needle properly. stitches properly. Change the needle. 2. Needle is bent or worn. 3. Incorrectly threaded.
  • Page 4 Elna International Corps. SA 3210 / 3230 Service manual CONDITION CAUSE HOW TO FIX REFERENCE Needle thread 1. Initial sewing speed is Start with medium speed breaks too fast. 2. Thread path is incorrect. Use the proper thread path. 3. Needle is bent or dull.
  • Page 5 Elna International Corps. SA 3210 / 3230 Service manual CONDITION CAUSE HOW TO FIX REFERENCE Noisy 1. Backlash between See mechanical adjustment operation shuttle hook gear is too “Backlash between Hook Page 19 great. Gear and Lower Shaft Gear”. 2. Lower shaft gear is Eliminate the looseness.

  • Page 6: Face Cover

    Elna International Corps. SA 3210 / 3230 Service manual FACE COVER To remove: 1. Remove the cap A and the screw B. 2. Remove the face cover C. To attach: 1. Follow the above procedure in reverse. TOP COVER To remove: 1.

  • Page 7: Belt Cover

    Elna International Corps. SA 3210 / 3230 Service manual BELT COVER To remove : 1. Remove the face and top cover (see page 4). 2. Remove the cap A. 3. Remove the screw B 4. Pull out the stitch selector D 5.

  • Page 8: Front Cover

    Elna International Corps. SA 3210 / 3230 Service manual FRONT COVER To remove : 1. Remove the face and belt cover (see pages 4 and 5) 2. Loosen the screw A and F 3. Remove the screws B, C, D and E.

  • Page 9: Rear Cover

    Elna International Corps. SA 3210 / 3230 Service manual REAR COVER To remove: 1. Remove the face cover, top cover and belt cover (see pages 4 and 5) 2. Loosen the screw A 3. Remove the screws B, C and D.

  • Page 10: Needle Thread Tension

    The standard tension should be 75 to 90 grams when the tension dial is set at "A" (Auto) for Model 3230 or at "4" for Model 3210, measured with a #50 white polyester thread being pulled at approximately 50 mm/sec. If the tension is outside the standard range, adjust it as follows.

  • Page 11: Presser Bar Height And Alignment

    Elna International Corps. SA 3210 / 3230 Service manual PRESSER BAR HEIGHT AND ALIGNMENT To check: When the presser foot is raised, the clearance between the presser foot and the needle plate should be 6.0 mm. When the presser foot is lowered, Th edge of Th foot and Th feed dog Windows on Th needle plate should be parallel.

  • Page 12: Needle Swing In Straight Stitch Sewing

    Elna International Corps. SA 3210 / 3230 Service manual NEEDLE SWING IN STRAIGHT STITCH SEWING To check: If the needle swings when running the machine with zigzag stitch, at width “0”, than correct this as follows: Adjustment procedure: 1. Select zigzag stitch and set the stitch width dial at “0”.

  • Page 13: Needle Swing

    Elna International Corps. SA 3210 / 3230 Service manual Needle Swing If the needle swings when it is still in the fabric, correct it as follows: Adjusting procedure: 1. Remove the face cover and top cover (See pages 4-5). 2. Select zigzag stitch and set the stitch width control at "6.5".

  • Page 14: Needle Position Misalignment

    Elna International Corps. SA 3210 / 3230 Service manual Needle Position Misalignment To check: Select the pattern " " and set the stitch width control at "6.5". Rotate the handwheel several turns until the needle comes in the center needle drop position.

  • Page 15: Needle Drop Position

    Elna International Corps. SA 3210 / 3230 Service manual Needle Drop Position The needle should drop in the center of the hole in the needle plate when the straight stitch is selected and the stitch width control is set at "O".

  • Page 16: Stretch Stitch Feed Balance

    Elna International Corps. SA 3210 / 3230 Service manual Stretch Stitch Feed Balance If the stretch stitch patterns are deformed when sewing the patterns with the feed balancing dial is set at the standard position (see F), correct it as follows: Adjustment procedure: 1.

  • Page 17: Feed Dog Height

    Elna International Corps. SA 3210 / 3230 Service manual FEED DOG HEIGHT The height of the deed dog should be 0.8-0.9 mm above the needle plate. Adjustment procedure: 1. Select the straight stitch and set the stitch width control at "O".

  • Page 18: Needle Bar Height

    Elna International Corps. SA 3210 / 3230 Service manual NEEDLE BAR HEIGHT When the tip of the hook D meets the left side of the needle in ascending travel of the needle from its left and lowest position, the distance between the top of the needle eye and the tip of the hook D should be in the range of 1.6-2.0 mm.

  • Page 19: Needle Timing To Hook

    Elna International Corps. SA 3210 / 3230 Service manual Needle Timing to Hook When the hook point meets with the right side of the needle, the height of needle point from its lowest and left most position should be 3.25-3.55 mm.

  • Page 20: Clearance Between Needle And Hook

    Elna International Corps. SA 3210 / 3230 Service manual Clearance between Needle and Hook The clearance between the needle and hook should be -0.10 to +0.05 mm. Adjustment procedure: 1. Select the zigzag stitch and set the stitch width control at "6.5".

  • Page 21: Backlash Between Hook Gear And Lower Shaft Gear

    Elna International Corps. SA 3210 / 3230 Service manual Backlash between Hook Gear and Lower Shaft Gear The rotary play of the hook point should be 0.8 mm or less when it is in between the span of the feed dog teeth and, the gears should turn smoothly.

  • Page 22: Zero Feeding

    Elna International Corps. SA 3210 / 3230 Service manual Zero Feeding The machine should not feed the fabric when the stitch length control is set at "O". Adjustment procedure: 1. Select the straight stitch and set the stitch length control A at "O".

  • Page 23: Needle Stop Position (3230 Only)

    Elna International Corps. SA 3210 / 3230 Service manual Needle Bar Stop Position (Model 3230 only) The height of the needle point should be 10-14 mm above the needle plate when the machine stops. If not, correct it as follows: Adjustment procedure: 1.

  • Page 24: Buttonhole Feed Balance

    Elna International Corps. SA 3210 / 3230 Service manual Buttonhole Feed Balance When sewing a buttonhole with the BH pitch balancing lever set at the neutral position, the stitches on each side of the buttonhole should be of the same stitch density. A range of 9-12 stitches in the "backward feeding"...

  • Page 25: Buttonhole Length

    Elna International Corps. SA 3210 / 3230 Service manual Buttonhole Length The machine should sew a buttonhole in a single step and the buttonhole length should be about 3 mm longer than the length set by buttonhole foot R. Adjustment procedure: 1.

  • Page 26: Auto-Stop Buttonhole (Model 3230)

    Elna International Corps. SA 3210 / 3230 Service manual Auto-Stop Buttonhole (Model 3230) The machine will stop automatically when buttonhole is completed. If the machine stops too early or too late, correct it as follows: Adjustment procedure: 1. Remove the face cover (See page 4.).

  • Page 27: Replacement And Adjustment Of Needle Threader Plate

    Elna International Corps. SA 3210 / 3230 Service manual Replacement and Adjustment of Needle Threader Plate To replace: Pry out the threader plate holder with a screwdriver while pushing and holding the threader knob (See fig. 1.). Align the groove on the new threader plate holder with the pin (B) on the threader shaft. Push the threader plate holder (C) up until it snaps in place.

  • Page 28: Motor Belt Tension

    Elna International Corps. SA 3210 / 3230 Service manual Motor Belt Tension 1. Remove the front cover (See page 6.). 2. Slightly loosen the 2 setscrews (A). 3. Move the motor to adjust the motor belt tension so that the belt is bent 7-9 mm when pressing the middle of the belt with approximately 300 grams of pressure.

  • Page 29: B-Board And Connector Location (Model 3230)

    Elna International Corps. SA 3210 / 3230 Service manual B-Board and Connector Location (Model 3230) To access: 1. Remove the Rear cover (see page 7). 2. Remove the two screws A and B. 3. Remove the circuit box lid C.

  • Page 30: Replacement Of B-Board And Fuse (Model 3230)

    Elna International Corps. SA 3210 / 3230 Service manual Remplacement of B-Board and fuse (3230 only) 1. Remove the rear cover (see page 7). 2. Remove the circuit box lid (see page 27). 3. Disconnect all connectors and unscrew the four screws B.

  • Page 31: Wiring Of Terminal In Machine Socket

    Elna International Corps. SA 3210 / 3230 Service manual Wiring of Terminals in Machine Socket Page 29...

This manual is also suitable for:

3230

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