Table of Contents
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Table of Contents
Related Manuals for Janome 5030
Summary of Contents for Janome 5030
- Page 1 SERVICE MANUAL MODEL:5030 81030DC 5050 81050DC 5100 81100DC N 2000 DC3100...
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Page 2: Table Of Contents
INDEX WHAT TO DO WHEN .......................... 1-3 CHANGING EXTERNAL PARTS FACE COVER ............................4 FREE-ARM COVER ..........................5 FRONT COVER ............................6 REAR COVER ............................7 MECHANICAL ADJUSTMENT PRESSER BAR HEIGHT ........................8 NEEDLE DROP POSITION ........................9 ADJUSTMENT OF HOOK TIMING ...................... 10 ADJUSTMENT OF NEEDLE BAR HEIGHT .................. -
Page 3: What To Do When
WHAT TO DO WHEN Condition Cause How to fix Reference 1. Skipping 1. Needle is not inserted properly. Insert the needle properly. Stitches 2. Needle is bent or worn. Change the needle. 3. Incorrectly threaded. Rethread. 4. Needle or thread are Use the recommended sewing needle inappropriate for the fabric and thread. - Page 4 Condition Cause How to Fix Reference 3. Breaking 1. Initial sewing speed is Start with medium speed. upper too fast. thread. 2. Thread path is incorrect. Use the proper thread path. 3. Needle is bent or dull. Replace with a new needle. 4.
- Page 5 Condition Cause How to fix Reference 6. Noisy 1. Backlash between hook gear Eliminate the backlash. operation and lower shaft gear is too great. 2. Lower shaft gear is loose. Eliminate the looseness. 3. Inappropriate belt tension. See part removal and replacement P.
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Page 6: Changing External Parts
CHANgiNg ExTERNAl PARTs FACE COVER To remove: 1. Remove the cap and setscrew q and lift the face cover to disengage the rib on the inside. Remove the face cover w. To attach: 2. Follow the above procedures in reverse. -
Page 7: Free-Arm Cover
CHANgiNg ExTERNAl PARTs FREE-ARM COVER To remove: 1. Remove the setscrew q and w. Move the free-arm cover e to the left. Remove the free-arm cover. To attach: Follow the above procedures in reverse. -
Page 8: Front Cover
CHANgiNg ExTERNAl PARTs FRONT COVER To remove: 1. Remove the face cover and free-arm cover (See page 4 and 5). 2. Remove the setscrews q (2 pcs.). 3. Remove the setscrews w (4 pcs.), back cover e. 4. Remove the setscrews r (2 pcs.). 5. -
Page 9: Rear Cover
CHANgiNg ExTERNAl PARTs REAR COVER To remove: 1. Remove the face cover and free-arm cover (See page 4 and 5). 2. Remove the setscrews q (2 pcs.) and the setscrews w (3 pcs.). 3. Remove the setscrews e (4 pcs.) and back cover r. 4. -
Page 10: Mechanical Adjustment
MECHANiCAl ADjusTMENT PREssER BAR HEigHT The distance between the bottom of the presser foot in up position and the needle plate should be 6.0 mm. 1. Remove the face plate and needle. 2. Lower the feed dog below the needle plate. Place a block 6 mm thick under the presser foot and lower the presser foot lifter w. -
Page 11: Needle Drop Position
MECHANiCAl ADjusTMENT 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 “7.0”. The clearance between the needle and the edge of the needle hole should be at least 0.2 mm on either side. -
Page 12: Adjustment Of Hook Timing
MECHANiCAl ADjusTMENT 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
MECHANiCAl ADjusTMENT 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 Rotary Hook
MECHANiCAl ADjusTMENT ClEARANCE BETWEEN NEEDlE AND TiP OF THE ROTARy HOOk * The clearance between the needle and the point of hook should be –0.1 to +0.05 mm. Adjustment procedure: 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
MECHANiCAl ADjusTMENT 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. Lower the presser foot and turn the power switch on. 2. Turn the handwheel toward you to set the feed dog at the highest position. 3. -
Page 16: Top Tension
MECHANiCAl ADjusTMENT TOP TENsiON The top tension should be between 65 and 80 g when pulling the thread up in the direction of arrow. * Use polyester sewing thread #50 (White). * If it is not within the above limit, adjust as follows. 1. -
Page 17: Stretch Stitch Feed Balance
MECHANiCAl ADjusTMENT sTRETCH sTiTCH FEED BAlANCE To check: 1. Enter the self-diagnostic mode (see below). Attach the Satin stitch foot F. Place a fabric under the presser foot. Lower the presser foot. 2. Press the locking stitch button to start test sew, and check the results (the standard figure length of 5 pieces of figure 8 is 33-39 mm). -
Page 18: Replacement And Adjustment Of The Needle Threader Plate
MECHANiCAl ADjusTMENT REPlACEMENT AND ADjusTMENT OF THE NEEDlE THREADER PlATE If the hook of the threader plate is damaged, change and adjust the part as follows: TO CHANgE THE THREADER PlATE: 1. Push down the needle threader knob and pull the threader plate supporter down to remove it (see FIG 1). 2. -
Page 19: Adjusting Buttonhole Lever Position
MECHANiCAl ADjusTMENT ADjusTiNg BuTTONHOlE lEVER POsiTiON TO ADjusT THE BuTTONHOlE lEVER guiDE: 1. Enter the diagnostic test of buttonhole sensor mode. (See pages 18 and 19. The LCD should display 03 and BH symbol.) 2. Remove the face cover (see page 4) and loosen the setscrew q. 3. -
Page 20: Self-Diagnostic Test
sElF-DiAgNOsTiC TEsT Preparation: 1. Turn the power switch off. 2. Move the bobbin winder spindle to the left. 3. Raise the feed dog. 4. Set the speed control lever to the left. 5. Remove the presser foot and raise the presser foot lifter. 6. - Page 21 sElF-DiAgNOsTiC TEsT sTEP AND PROCEDuRE CORRECT CONDiTiON DEFECTiVE CONDiTiON iTEMs T CHECk Turn on the power switch while Sewing lamp and LCD backlight lit. Sewing lamp does not lit. LCD backlight does not lit. LCD displays “01 ----”. FuNCTiON OF simultaneously pressing the LCD does not display.
- Page 22 sElF-DiAgNOsTiC TEsT sTEP AND PROCEDuRE CORRECT CONDiTiON DEFECTiVE CONDiTiON iTEMs TO CHECk LCD displays “SC 05--” and presser Not applicable for this machine. PREssER foot symbol. Press the start/stop button to FOOT proceed the next step. Presser liFTER foot sWiTCH symbol Turn the handwheel toward you.
- Page 23 sElF-DiAgNOsTiC TEsT sTEP AND PROCEDuRE CORRECT CONDiTiON DEFECTiVE CONDiTiON iTEMs TO CHECk Attach the foot control to the LCD displays “SC 08--”. The foot control symbol FOOT machine. does not appear. CONTROl Depress the foot control as far as Buzzer does not sound. it goes, then release it.
- Page 24 sElF-DiAgNOsTiC TEsT sTEP AND PROCEDuRE CORRECT CONDiTiON DEFECTiVE CONDiTiON iTEMs TO CHECk LCD displays “OK” or “NG”, LCD displays “OK” when the LCD displays “NG”. EEPROM depending on the EEPROM EEPROM is correct condition. –REMEDy– condition. Replace the circuit board A. If the result is correct condition, “OK”...
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Page 25: 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. Refer to pages 19-22 and fix the defective part. Each time you press the start/stop button, the defective part number(s) will be displayed. -
Page 26: Replacing The Electronic Components
REPlACiNg THE ElECTRONiC COMPONENTs PRiNTED CiRCuiT BOARD A CONNECTiON NOTE: Do not disconnect the connectors by pulling on cord. To disconnect, grasp the connector, not the cord. Bobbin winding switch (Blue) Foot control (Black) Presser foot lifter switch (Green) Switching regulator (White) BH sensor (Red) Zigzag width motor (Green) Printed circuit board L (Blue) -
Page 27: Printed Circuit Board A
REPlACiNg THE ElECTRONiC COMPONENTs PRiNTED CiRCuiT BOARD A TO REMOVE: 1. Remove the front cover. (See page 6.) 2. Pull out connectors from the printed circuit board A. 3. Remove the screws (4 pcs.) and the printed circuit board A. TO ATTACH: 1. -
Page 28: Printed Circuit Board F2
REPlACiNg THE ElECTRONiC COMPONENTs PRiNTED CiRCuiT BOARD F2 TO REMOVE: 1. Remove the front cover. (See page 6.) 2. Pull out connectors from the printed circuit board A. 3. Remove the screws (3 pcs.) and the printed circuit board F2. TO ATTACH: 1. -
Page 29: Printed Circuit Board F1
REPlACiNg THE ElECTRONiC COMPONENTs PRiNTED CiRCuiT BOARD F1 TO REMOVE: 1. Remove the front cover. (See page 6.) 2. Pull out connectors from the printed circuit board A. 3. Remove the screws (2 pcs.) and LED cover. 4. Remove the printed circuit board F2. TO ATTACH: 1. -
Page 30: Printed Circuit Board L
REPlACiNg THE ElECTRONiC COMPONENTs PRiNTED CiRCuiT BOARD l TO REMOVE: 1. Remove the front cover. (See page 6.) 2. Pull out connectors from the printed circuit board A. 3. Remove the screw and LED cover. 4. Remove the printed circuit board L. TO ATTACH: 1. -
Page 31: Driving Motor (Dc Motor)
REPlACiNg THE ElECTRONiC COMPONENTs DRiViNg MOTOR (DC MOTOR) TO REMOVE: 1. Remove the front cover. (See page 6.) 2. Remove the setscrews q (2 pcs.), setscrew w (1 pcs.), the driving motor and the belt. TO ATTACH: 1. Install the driving motor and the motor belt. Tighten them with setscrews q (2 pcs.) lightly. 2. -
Page 32: Switching Regulator Unit
REPlACiNg THE ElECTRONiC COMPONENTs sWiTCHiNg REgulATOR uNiT TO REMOVE: 1. Remove the front cover and the rear cover. (See pages 6 and 7.) 2. Remove the setscrews q (3 pcs.) and the switching regulator. 3. Remove the setscrews w (4 pcs.). TO ATTACH: 4.