Janome DC6030 Service Manual
  1. Manuals
  2. Brands
  3. Janome Manuals
  4. Sewing Machine
  5. DC6030
  6. Service manual

Janome DC6030 Service Manual

Hide thumbs Also See for DC6030:
Table of Contents

Advertisement

Quick Links

See also: Instruction Book
SERVICE MANUAL
DC6030

Advertisement

Table of Contents
loading

Related Manuals for Janome DC6030

Summary of Contents for Janome DC6030

  • Page 1 SERVICE MANUAL DC6030...

  • Page 2: Table Of Contents

    INDEX What to do when ......................1-2 Changing External Parts (1) (Face Cover) ..............3 Changing External Parts (2) (Free-arm Cover).............. 4 Changing External Parts (3-1) (Front Cover) ..............5 Changing External Parts (3-2) (Front Cover) ..............6 Changing External Parts (4) (Rear Cover) ..............7 Presser Bar Height ......................

  • Page 3: What To Do When

    What to do when Condition Cause How to fix 1. Needle is not inserted properly. Insert the needle properly. Change the needle. 2. Needle is bent or worn. Rethread. 3. Incorrectly threaded. Use the recommended sewing needle 4.Needle or thread are inappropriate for the and thread.
  • Page 4 Condition Cause How to Fix 1. Bobbin holder is incorrectly threaded. Set the bobbin thread correctly. 2. Too much thread is wound on the bobbin. Adjust the position of bobbin winder stopper. 3. Lint is stuck inside the bobbin holder. Clean the bobbin holder.

  • Page 5: Changing External Parts (1) (Face Cover)

    Changing External Parts (1) Face Cover To remove: 1. Remove the setscrews (2 pcs.). Remove the face plate. To attach: 2. Follow the above procedure in reverse. * Make sure that the face plate can be closed fitting with the thread tension and the rear cover. Face cover Setscrew...

  • Page 6: Changing External Parts (2) (Free-Arm Cover)

    Changing External Parts (2) Free-arm Cover To remove: 1. Remove the cap and setscrew (A). 2. Remove the setscrew (B). Move the free-arm cover to the left. Remove the free-arm cover. To attach: 3. Insert the free-arm cover Tighten the setscrew (A) and (B). 4.

  • Page 7: Changing External Parts (3-1) (Front Cover)

    Changing External Parts (3-1) Front Cover To remove: 1. Remove the face cover. 2. Remove the setscrews (A) (2 pcs.). 3. Loosen the setscrew (B) (1 pcs.). 4. Remove the setscrews (C) (1 pcs.), setscrews (D) (4 pcs.),and back cover. (Disconnect the connectors) 5.

  • Page 8: Changing External Parts (3-2) (Front Cover)

    Changing External Parts (3-2) Front Cover 1. Disengage the front cover and rear cover hooks.

  • Page 9: Changing External Parts (4) (Rear Cover)

    Changing External Parts (4) Rear Cover To remove: 1. Remove the free-arm cover. 2. Remove the setscrews (A) (5 pcs.). 3. Remove the setscrews (B) (4 pcs.) and back cover. 4. Remove the setscrews (C) (1 pcs.) and setscrews (D) (2 pcs.). Remove the rear cover. Lower the presser foot lifter.

  • Page 10: Presser Bar Height

    Presser Bar Height The distance between the bottom of the presser foot in up position and the needle plate should be 6.0 mm. Make sure that the presser foot should be parallel to the feed dog slots in the needle plate. 1.

  • Page 11: Needle Drop Position

    Needle Drop Position Set the stitch pattern to “ ”. The standard needle drop position should be at center of the needle plate hole. Select zigzag stitch “ ”, and set the stitch width at “5.0”. The clearance between the needle and the edge of the needle hole in the needle plate should be at least 0.2 mm on either side.

  • Page 12: Adjustment Of Hook Timing

    Adjustment of Hook Timing The amount of ascending travel of the needle bar from its lowest position to the position ( ) where the tip of the rotary hook exactly meets the right side of the needle should be 3.25 to 3.55 mm. 1.

  • Page 13: Adjustment Of Needle Bar Height

    Adjustment of Needle Bar Height Before proceeding with this adjustment, check the hook timing (refer to page 10). The distance between the upper edge of the needle eye and the tip of the hook should be in the range of 1.6 to 2.0 mm when the tip of the hook timing meets right side of the needle in the left needle position ( ) as the needle ascends from its lowest position.

  • Page 14: Clearance Between Needle And Tip Of Hook Rotary

    Clearance between Needle and Tip of Hook Rotary The clearance between the needle and the point of hook should be –0.1 to +0.05 mm. 1. Remove the needle plate and bobbin holder. Attach the master needle. Turn the power switch on and set the zigzag width at maximum.

  • Page 15: Feed Dog Height

    Feed Dog Height The highest position of the feed dog should be between 0.80 and 0.90 mm from the surface of the needle plate. 1. Remove the free-arm cover. 2. Lower the presser foot and turn the power switch on. 3.

  • Page 16: Feed Dog Adjustment

    Feed Dog Adjustment The highest position of the feed dog should be parallel to the surface of the needle plate. If not, adjust as follows. 1. Use a hexagonal socket screw (4 x 6). Insert the screw to the hole (B). Tighten the hexagonal socket screw as far as it goes. 2.

  • Page 17: Top Tension

    Top Tension The top tension should be between 65 and 80g when set the tension dial “4”. * Use polyester sewing thread #50 (White). 1. Set the tension dial “4”. 2. Remove the cover. 3. Lower the presser foot. • If the top tension is too loose, turn the lead screw in the direction (A). •...

  • Page 18: Circuit Board A Connection

    Circuit Board A connection Insert all the connectors according to the diagram shown below. Note: Do not disconnect the connectors by pulling on cord. To disconnect, grasp the connector, not the cord. Note: 1. Make sure to insert the connector into the connector receptacle of the same color on the board. 2.

  • Page 19: Self-Diagnostic Test

    Self-diagnostic Test Preparation: • Turn the power switch off. • Move the bobbin winder spindle to the left. • Raise the feed dog. • Set the speed control lever to the left. • Remove the presser foot and raise the presser foot lifter. •...
  • Page 20 Self-diagnostic Test Step and Procedure Correct Condition Defective Condition items to check Turn the power switch on while Sewing lamp and LCD backlight lit. q Sewing lamp does not lit. simultaneously pressing needle LCD displays “- - - -”. Replace the circuit Function of up/down button and the locking board L2.
  • Page 21 Self-diagnostic Test Step and Procedure Correct Condition Defective Condition items to check Lower the buttonhole lever. LCD displays “03”. Buzzer does not sound. Buttonhole Pull the buttonhole lever toward When the buttonhole lever is pulled, BH symbol does not appear or Sensor you.
  • Page 22 Self-diagnostic Test Step and Procedure Correct Condition Defective Condition items to check Turn the handwheel toward you to LCD displays “07”. Zigzag motor does not get Zigzag motor indicate stitch width symbol. LCD displays stitch width symbol when default position. (Step motor) Press the needle up/down button.
  • Page 23 Self-diagnostic Test Step and Procedure Correct Condition Defective Condition items to check Press the needle up/down button. LCD displays “10”. The machine motor does not DC motor start. If the result is correct condition, The motor stops immediately. press the start/stop button to The motor runs unstable.

  • Page 24: To Display The Version Of The Program

    Self-diagnostic Test Buzzer sounds after few seconds when the self-diagnostic test has been finished. The test result has been determined. Correct: Buzzer sounds and LCD displays “00” Defective: Caution buzzer sounds and LCD displays the defective part number. The defective part number.

  • Page 25: Replacing The Circuit Board A

    Replacing the Circuit Board A To remove: 1. Remove the front cover. 2. Pull out connectors from the circuit board-A. 3. Remove the setscrews (6pcs.) and the circuit board-A. Note: Do not disconnect the connectors by pulling on cord. To disconnect, grasp the connector, not the cord. To attach: 1.

  • Page 26: Replacing The Circuit Board F, F2, L1, L2 And Speed Control Slider

    Replacing the Circuit Board F, F2, L1, L2 and Speed Control Slider To remove: 1. Remove the front cover. 2. Pull out connectors from the circuit board A. 3. Remove the setscrews (A) (2pcs.) and the circuit board F. Remove the setscrews (B) (2pcs.) and the circuit board F2. Remove the CS rings 3 (2pcs.) and the speed control slider.

  • Page 27: Replacing The Driving Motor

    Replacing the Driving Motor Change the DC motor belt and adjust the belt tension as follows To remove: 1. Remove the front cover. 2. Remove the setscrews (2pcs.) and the driving motor and the belt. To attach: 1. Install the driving motor and the motor belt. Tighten them with setscrews (2pcs.) lightly. 2.

  • Page 28: Replacing The Switching Regulator Unit

    Replacing the Switching Regulator unit To remove: 1. Remove the front cover and the rear cover. 2. Remove the setscrews (A) (3 pcs.) and the switching regulator. 3. Remove the setscrews (B) (4 pcs.), power supply connector and foot control connector. To attach: 4.

  • Page 29: Adjustment Of Buttonhole Lever Position

    Adjustment of Buttonhole Lever Position To adjust the buttonhole lever guide: 1. Enter the buttonhole sensor adjusting mode. 2. Remove the face cover and loosen the setscrew (A) . 3. Move the buttonhole lever guide so the BH symbol disappear when the buttonhole lever is lowered. Tighten the setscrew (A).

  • Page 30: Adjustment Of Needle Threader Plate

    Adjustment of Needle Threader Plate If the hook of the threader plate is damaged, change or adjust the part as follows: To remove: 1. Remove the presser foot holder and needle. 2. Pull the needle threadear plate down to remove it .... (Fig. 1) 3.

  • Page 31: Replacing Thte Bobbin Thread Holder/Cutter Unit

    Replacing the Bobbin Thread Holder/Cutter unit Change the bobbin thread holder/cutter (unit) as follows. 1. Pulling the bobbin thread holder/cutter (unit) upward straight and remove it from the bobbin winder spindle. 2.Attach the new bobbin thread holder/cutter (unit) on the bobbin winder spindle so that the rib (large) fits into the notch (large) and the rib (small) fits into the notch (small).

  • Page 32: Cleaning Area Of Thread Cutter And Lower Shaft Gear

    Cleaning area of Thread Cutter and Lower Shaft Gear Remove the dust on the area of the thread cutter and the lower shaft gear as follow. 1. Remove the free arm cover and clean the area of the thread cutter and the lower shaft gear. 2.

Table of Contents