Kenmore 385.190011890 Service Manual
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Kenmore 385.190011890 Service Manual

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SERVICE MANUAL
SEWING MACHINE MODEL
385.19001890
NOVEMBER,1998

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Summary of Contents for Kenmore 385.190011890

  • Page 1 SERVICE MANUAL SEWING MACHINE MODEL 385.19001890 NOVEMBER,1998...

  • Page 2: Table Of Contents

    CONTENTS SPECIFICATIONS ............WIRING DIAGRAM ............GENERAL TROUBLE SHOOTING PROCEDURE ........WHAT TO DO WHEN ...., ..........7-10 ELECTRONIC QUICK CHECK ..........11-13 MAIN KEY FUNCTION ............WINDING THE BOBBIN ............THREADING THE MACHINE ..........WHEN MESSAGES APPEAR ON THE SCREEN ........TO ATrACH THE STABILIZER .
  • Page 3 PRESSER BAR HEIGHT AND ALIGNMENT ........OVER LOAD (1), (2) ............... 42-43 *ADJUSTMENT OF TOUCH PANEL ............*BOBBIN THREAD TENSION (1),(2) ............. 45-46 PART REMOVAL AND REPLACEMENT NEEDLE THREAD TENSION UNIT ..........FEED DOG ................... THREADER PLATE ................. C-BOARD UNIT AND FUSE ............

  • Page 4: Specifications

    SEWING MACHIN E DIV. 20 MODEL 385.19001890 SPECIFICATIONS MODEL 385.19001890 (A) GENERAL SPECIFICATIONS I. TYPE: FREEARM, TWO IN ONE (CONVENTIONAL AND EMBROIDERY) 2. CONVERTIBILITY: EXTENSION TABLE 3. SHUTTLESYSTEM: HORIZONTAL FULL ROTARY SHU_LE 4. STITCH PACKAGE: 65 PLUS 840 BUILT-INMONOGRAMS BUILT-IN STITCH: (UTILITY) (STRETCH) (DECORATIVE)
  • Page 5 SE'WlNG M ACHINE DIV. 2 0 MODEL 3 85.19001890 18. NEEDLE UP & DOWN: PUSH BUTTON SYSTEM REVERSESTITCH: PUSH BUTTON SYSTEM 20. LCD (LIQUID CRYSTAL DISPLAY): 21. HORIZONTAL SPOOL PIN: 22. CARRY HANDLE: 23. BOBBIN COVER PLATE: POP UP TYPE 24.
  • Page 6 SEWING MACHINE DIV. 2 0 MODEL 3 85.19001890 *MUSICAL INSTRUMENT SERIES K-12 (8344500O8 *FLORAL ART AND QUILTING DESIGNS K-101 (834408001 *SEWING-RELATED DESIGNS K-102 (834409002 *OCEAN LIFE DESIGNS K-103 (834410006 *CHRISTMAS DESIGNS I K-104 (834451009 *CHRISTMAS DESIGNS 1I K-105 (834520000 *CUIWORK DESIGNS K-106 (834471005 *FARM DESIGNS K- 107 (834472006...
  • Page 7 SEWING MACHINE DIV. 20 MODEL 385.19001890 (B) STITCH PACKAGE DETAIL 1. TOTAL STITCHES: 2. BUILT-IN STITCHES: UTILITY: STRETCH: DECORATIVE: DARNING 3. BUILT-IN MONOGRAM UTILITY STRETCH DECORATIVE BUTi'ONHOLE ' I 4 i !, l DARNING :>...

  • Page 8: Wiring Diagram

    SEWING MACHINE DIV. 20 MODEL 385.19001890 WIRING DIAGRAM NAME OF ELECTRONIC PARTSAND WIRING NOTE: EACH CONNECTOR SHOULD BE CONNECTED AS FOLLOWS; (A)-(A),(B)-(B),(C)-(C),(D)-(D),(E)-(E),(F)-(F),(G)-(G),(H)-(H),(J)-(J),(K)-(K) (L)-(L),(M)-(M),(N)-(N),(O)-(O),(P)-(P). (A): UPPER SHAFT SENSOR (K): LAMP (B): MACHINE SOCKET UNIT (SECONDARY) (L): TENSION RELEASESOLENOID (C): DC MOTOR (M): C-BOARD (D): ZIGZAG WIDTH STEPPING MOTOR...

  • Page 9: Generaltrouble Shooting Procedure

    SEWING MACHINE DIV. 20 MODEL 385. ] 9001890 GENERALTROUBLE SHOOTING PROCEDURE (MACHINE OOESN"TWORK WELL) START *IS NEEDLESETOK ? BASIC CHECK ..*IS POWER SUPPLY OK ? *IS THREADING OK ? CORRECT >10'K' MECHANICAL ELECTRICAL CAN'TJUDGE O,K. ELECTRIC QUICK CHECK ADJUSTMENT _N.G, REPLACE PARTS SEWING...

  • Page 10: What To Do When

    SEWING MACHINE DIV. 20 MODEL 385.19001890 WHAT TO DO WHEN CONDITION CAUSE HOW TO FIX REFERENCE NEEDLE IS NOT INSERTED INSERTTHE NEEDLE PROPERLY. 1. SKIPPING PROPERLY. STITCHES NEEDLE IS BENT OR WORN. CHANGE THE NEEDLE. INCORRECTLY THREADED, RETHREAD. NEEDLE ORTHREAD ARE USETHE RECOMMENDED INAPPROPRIATE FOR SEWING NEEDLE AND...
  • Page 11 SEWING MACHINE DIV. 20 MODEL 385.19001890 CAUSE CONDITION HOW TO FIX REFERENCE 4. THREAD ON BO1-POM SIDE MAKE SURE TO BRING OF FABRIC ISJAMMED UP. BOTH NEEDLE AND BOBBIN THREADS UNDER THE FOOT WHEN STARTING SEWING. FEED DOG TEETHARE CHANGE THE FEED DOG. P.
  • Page 12 SEWING MACHINE DIV. 2 0 MODEL 3 85.19001890 CAUSE CONDITION HOW TO FIX REFERENCE 1. INCORRECTLY THREADED 4, BREAKING THREAD BOBBIN HOLDER P. 15 BOBBIN HOLDER, BOBBIN CORRECTLY. THREAD 2. TOOMUCHTHREAD I S ADJUST THE POSITION OF WOUND ONTHE BOBBIN. STOPPER.
  • Page 13 SEWING MACHINE DIV. 20 MODEL 385.19001890 CONDITION CAUSE HOW TO FIX REFERENCE NOISY BACKLASH BE[WEEN SEE MECHANICAL E 31 OPERATION SHUI_LE HOOK GEAR AND ADJUSTMENT '" BACKLASH LOWER SHAFT GEAR IS (LOWER SHAFT GEAR)". TOO GREAT. LOWER SHAFT GEAR IS ELIMINATE THE LOOSENESS.

  • Page 14: Electronic Quick Check

    SEWING MACHINE DIV. 20 MODEL 385.19001890 ELECTRONIC QUICK CHECK I.CHECKING TURN THE POWER SWITCH ON. *IF NOTHING HAPPENS ON THE MACHINE;FIRST, REPLACE THE FUSE(SEE PAGE 50) 1. CHECK ALL WIRE CONNECTIONS (SEE PAGE 5), CHECK THE C-BOARD (SEE PAGE 50). CHECK THE TRANSFORMER (SEE PAGE 51).

  • Page 15: Electronic Quick Check

    SEWING MACHINE DIV. 20 MODEL 385.19001890 ELECTRONICQUICK CHECK CHECK OPERATION *THIS QUICK CHECK MUST BE PERFORMED IN THE SEQUENCE SHOWN.FOLLOW EACH STEP CAREFULL,DO NOT SKIP ANY PROCEDURE. *ON THE FOLLOWING STEPS .PRESS UP/DOWN NEEDLE BuYroN IF CORRECT CONDITION FOR NEXT STEP. .PRESS AUTO-LOCK BUTTON IF DEFECT CONDITION.
  • Page 16 SEWING MACHINE DIV. 20 MODEL 385.19001890 TEST STEP CORRECTCONDmOB DEFECT CONDITION & CORRECTION (LCD SHOWS "FOOl 07) PRESSER F-OO" LEVER') SENSOR TEST • PRESSU/D NEEDLE BUTTON FOR NEXT STEP • SHIFT THE BH (LCD SHOWS "BH • FIRST, C HECK F- 08) BUITONHOLE •NO BUZZER SENSOR TEST...

  • Page 17: Main Key Function

    SEWING MACHINE DIV. 20 MODEL 385.19001890 MAIN KEY FUNCTION 1c I. u START/STOP BUTTON ....CONVENTIONAL AND EMBROIDERY SEWrNG WITHOUT FOOT CONTROL REVERSE BU_QN ..... REVERSESTITCHING WHILE PREYING THISBUI_QN AUTO-LOOK BUNON ....SEWS IN PLACE FOR A FEW STITCHESTHEN AUTO- MATICALLY STOPS UP/DOWN NEEDLE BUTrON .,.

  • Page 18: Winding Thebobbin

    SEWING MACHINE DIV. 2 0 MODEL 385.19001890 WINDING THEBOBBIN (1) PASS THE THREAD AROUND THREAD GUIDE. (2) THEN THROUGH THE HOLE IN THE BOBBIN. (3) PUT THE BOBBIN ON THE BOBBIN WINDER SPINDLE, AND PUSH THE BOBBIN TO THE RIGHT. (4) WHEN THE BOBBIN IS FULLYWOUND, ITWILL STOP AUTOMATICALLY.

  • Page 19: Threading The Machine

    SEWING MACHINE DIV. 20 MODEL 385.19001890 THREADING THE MACHINE RAISE THE PRESSERFOOT LIFTER, A ND PASSTHE THREAD THROUGH POINTS (I) TO (6). HOLD THE UPPER THREAD AND PASS THE THREAD UNDER THE THREAD GUIDE. PULL THE THREAD DOWN ALONG THE GROOVE. (2) DRAW THE THREAD AROUND THE CHECK SPRING HOLDER FROM RIGHT TO LEFT,THEN PULL UP THE THREAD.

  • Page 20: When Messagesappear On Thescreen

    SEWING MACHINE DIV. 20 MODEL 385.19001890 WHEN MESSAGESAPPEAR ON THESCREEN MESSAGE FOR THREAD BROKEN TURN OFF THE POWER SWITCH, AND RE-THREADING. THE VISUAL TOUCH SCREEN SHOWS 'BOBBIN WIND- ING" CONDITION. AFTER THE BOBBIN IS WOUND, RETURN THE BOBBIN WINDER TO ITSORIGINAL POSITION BY MOVING SPINDLE TO THE LEFT.

  • Page 21: To Atrach The Stabilizer

    SEWING MACHINE DIV. 2 0 MODEL 3 85.19001890 TO ATTACH THE STABILIZER PLACE THE GLUE (SHINY) SIDE OF THE STABILIZERON THE FABRIC AND IRON AS ILLUSTRATED USING MEDIUM TEMPERATURE, (1) STABILIZER (2) FABRIC TO SETTHEFABRIC IN THE EMBROIDERYHOOP MARK THE DESIRED EMBROIDERING POSITION ON THE FABRIC AS ILLUSTRATED USING TAILOR'S CHALK.

  • Page 22: Serviceaccess

    SDA/ING MACHINE DIV. 20 MODEL 385.19001890 SERVICEACCESS FACE COVER TO REMOVE: REMOVE THE 2 SCRE"WS(A) AND REMOVE THE FACE COVER (B). TO ATTACH: REPLACE THE FACE COVER BY LIGHTLYTIGHTENING THE 2 SCREWS (A). CLOSE THE FACE COVER, CAREFULLY ALIGNING IT WITH THE BODY. THEN TIGHTEN THE SCREWS FIRMLY.

  • Page 23: Beltcover

    SEWING MACHINE DIV. 20 MODEL 385. ] 900 ] 890 SERVICEACCESS BELT COVER TO REMOVE: LOOSEN SCREW (A), REMOVE SCREWS (B), (C) AND'WASHER (D). THEN REMOVE THE BELTCOVER (E). TO ATTACH: REVERSETHIS PROCEDURE. HANDLE _._- SCREW (A) BELTcovER FRONT PANEL SCREW (B) SCREW (C) ;"...

  • Page 24: Base Cover

    SEWING MACHINE DIV. 20 MODEL 385.19001890 SERVICEACCESS BASE COVER TO REMOVE: MOVE THE CARRIAGE (A) BY HAND, WHEN MOVING IT,HOLD THE LOWER PART, NEVER THE UPPER PART. REMOVE THE 3 SCREWS (B) AND REMOVE THE CARRIAGE WINDOW FRAME (C). REMOVE THE 2 SCREWS (D) AND REMOVE THE BASE COVER (E). TO ATTACH: REVERSETHIS PROCEDURE.

  • Page 25: Bed Cover

    SEWING MACHINE DIV.20 MODEL 385.19001890 SERVICEACCESS BED COVER TO REMOVE: REMOVE THE WINDOW FRAME, AND THE BASE COVER. REMOVE THE 2 SCREWS (A), AND REMOVE THE BASE LID (1). REMOBE THE 2 SCREWS (B), AND REMOVE THE BED COVER (C). TO ATTACH: REVERSETHISPROCEDURE.

  • Page 26: Base Unit

    SDNING MACHINE DIV. 2 0 MODEL 3 85.19001890 SERVICE ACCESS BASE UNIT TO REMOVE: REMOVE THE BELTCOVER. PULL THE CONNECTORS FOR THE X-AXIS (WHITE) AND Y-AXIS (BLUE) MOTORS FROM A- BOARD. REMOVE THE 4 SCREWS (A) AND THE BASE UNIT (B). TO ATTACH: FOLLOW THE ABOVE PROCEDURE tN REVERSE.

  • Page 27: Front Cover

    SEWING MACHINE DIV. 20 MODEL 385.19001890 SERVICEACCESS FRONT COVER TO REMOVE: REMOVE THE TOP COVER AND BELTCOVER UNIT. REMOVE THE SCREW(A) AND ARM THREAD GUIDE (LOWER) (F), LOOSEN THE SCREWS (B), (C), (D) AND (E). UNPLUG 12 CONNECTORS FROM A-BOARD (G). AND LCD CONNECTOR (H) FROM INVERTER.

  • Page 28: Mechanical Adjustment

    SEWING MACHINE DIV. 2 0 MODEL 385.19001890 MECHANICAL ADJUSTMENT NEEDLE POSITION *WHEN THE STRAIGHT STITCH IS SELECTED, THE NEEDLE SHOULD BE AT THE CENTER OF HOLE OF THE NEEDLE PLATE. *WHEN THE ZIGZAG STITCHIS SELECTED WITH THE ZIGZAG WIDTH SETTO THE MAXIMUM (7.0), THE CLEARANCE BETWEEN THE SIDE OF THE NEEDLE AND THE EDGE OF HOLE OF THE NEEDLE PLATE AT THE LEFTAND RIGHT NEEDLE POSITION SHOULD BE 0.2 MM OR MORE.

  • Page 29: Needle Bar Height

    SEWING MACHINE DIV. 20 MODEL 385.19001890 MECHANICAL ADJUSTMENT NEEDLE BAR HEIGHT MACHINE SETTING: I. PAI-rERN: NO.I (STRAIGHT STITCH) 2. TURN THE POWER SWITCH OFF. PREPARATION: REMOVE THE NEEDLE, PRESSER FOOT, NEEDLE PLATE(A) AND BOBBIN HOLDER (B). INSERTTHE RADIAL TIMING GAUGE #68497 (C) INTO THE HOOK. AI-rACH THE NEEDLE BAR HEIGHT GAUGE#68168 (D).

  • Page 30: Needle Bar Height

    SEWING MACHINE DIV. 20 MODEL 385.19001890 MECHANICAL ADJUSTMENT NEEDLEBAR HEIGHT ADJUSTMENT PROCEDURE: OPENTHE FACE COVER. LOOSEN THE SCREW (M) ON THE NEEDLE BAR HOLDER (L). MOVE THE NEEDLE BAR (F) UP OR DOWN TO ADJUST THE POSITION OF THE NEEDLE BAR (F) SO THATTHE FACE (G) HITSTHE SIDE OF PIN (H) AND THE END OF PIN (I) TOUCHES THE SURFACE OF GAUGE (K).

  • Page 31: Needle To Shuttle Timing

    SEWING MACHINE DtV. 20 MODEL 385.19001890 MECHANICAL ADJUSTMENT NEEDLETO SHUTrLETIMING MACHINE SETTING: I. PAI-rERN: NO.I (STRAIGHT STITCH) 2. TURN THE POWER SWITCH OFF. PREPARATION: I. REMOVE THE NEEDLE, PRESSER FOOT, NEEDLE PLATE (A)AND BOBBIN HOLDER (B).- INSERT THE RADIAL TIMING GAUGE #68497 (C) SO THAT THE SMALL FINGER ON THE GAUGE FITS INTO THE SLOT NEAR THE TIPOF THE HOOK.
  • Page 32 SEWING MACHINE DIV. 20 MODEL 385.19001890 MECHANICAL ADJUSTMENT NEEDLETO SHUITLETIMING ADJUSTMENT PROCEDURE: TURN THE POWER SWITCH OFF. REMOVE THE BELTCOVER (SEE P.20). REMOVE THE 4 SCREWS (G), THEN BASE LID 2 ( I ). TURN THE POWER SWITCH ON, AND SELECT PATTERNNO.1 (STRAIGHT STITCH). LOOSEN THE 2 SCREWS IN THE LOWER SHAFT TIMING GEAR (J).

  • Page 33: Clearance Betweenneedleand Hook

    SEWING MACHINE DIV. 20 MODEL 385.19001890 MECHANICAL ADJUSTMENT CLEARANCE BETWEENNEEDLEAND HOOK *THE CLEARANCE BETWEEN THE NEEDLE AND THE POINT OF HOOK SHOULD BE -0.1 TO +0.05 MM. PREPARATION: REMOVE THE NEEDLE PLATE, BOBBIN HOLDER, BASE COVER, BASE LID AND BED COVER UNIT (SEE P.22), AND REPLACE THE NEEDLE WITH THE TESTPIN (D) #68368.

  • Page 34: Backlash (Lower Shaft Gear)

    SEWING MACHINE DIV. 20 MODEL 385.19001890 MECHANICAL ADJUSTMENT BACKLASH (LOWER SHAFT GEAR) TO CHECK: TURN THE POWER SWITCH OFF. REMOVE THE NEEDLE PLATE AND BOBBIN HOLDER. TURN THE HANDWHEEL SLOWLY TOWARD YOU UNTIL THETIP OF THE SHUTI'LEHOOK (A) IS BETWEEN BOTH ENDS (B) OF FEED DOG. ROTATETHE HOOK RACE CLOCKWISE AND COUNTERCLOCKWISE BY FINGER.

  • Page 35: Feed Dog Height

    SEWING MACHINE DIV. 2 0 MODEL 385.19001890 MECHANICAL ADJUSTMENT FEED DOG HEIGHT MACHINE SE'I'rlNG: I. PATIERN: NO. 1 (STRAIGHT STICH) 2. STITCH LENGTH: 5.0 (MAX) 3. NEEDLE BAR: HIGHEST POSITION PREPARATION: REMOVE THE PRESSER FOOT. PUT THE FEED DOG HEIGHT GAUGD_3496 (C) ON THE NEEDLE PLATE.

  • Page 36: Feed Dog Height

    SEWING MACHINE DIV. 20 MODEL 385.19001890 MECHANICAL ADJUSTMENT FEED DOG HEIGHT ADJUSTMENT PROCEDURE: REMOVE THE BASE COVER, BASE LID AND BED COVER UNIT (SEE P.22). TURN THE POWER SWITCH ON. TURN THE BALANCE WHEEL TOWARD YOU AND SETTHE FEED DOG AT THE HIGHEST POSITION.

  • Page 37: Upper Shaft Shield Plateposition

    SEWING MACHINE DIV. 20 MODEL 385.19001890 MECHANICAL ADJUSTMENT UPPER SHAFT SHIELD PLATEPOSITION TO CHECK: WHEN THE MACHINE IS SET FOR ZIGZAG STITCH, THE NEEDLE SHOULD STARTTO SWING 7.7 TO 8.7 MM ABOVE THE SURFACE OF THE NEEDLE PLATE. ADJUSTMENT PROCEDURE: REMOVE THE TOP COVER UNIT (SEE P.19).

  • Page 38: Solenoid

    SEWING MACHINE DIV. 2 0 MODEL 385. " 19001890 MECHANICAL ADJUSTMENT SOLENOID PREPARATION: LOWER THE PRESSER BAR LIFTER. ADJUSTMENT PROCEDURE: I. REMOVE THE TOP COVER (SEEP.19). 2. LOOSEN THE 2 SCREWS (A). 3. INSERTTHE GAUGE #U1790 AS SHOWN, AND TIGHTEN THE SCREWS (A).

  • Page 39: Tension Releasemechanism

    SEWING MACHINE DIV. 20 MODEL 385.19001890 MECHANICAL ADJUSTMENT TENSION RELEASEMECHANISM TO CHECK: I. WHEN THE PRESSER BAR IS RAISED,THE TENSION DISC HOLDER (D)SHOULD MOVE ABOUT 1.0MM AS A STANDARD VALUE IN ORDER FOR THE TENSION RELEASE FUNCTION WORK CORRECTLY. ADJUSTMENT PROCEDURE: I.

  • Page 40: Stretchstitch Feed Balance

    SEWING MACHINE DIV. 20 MODEL 385.19001890 MECHANICAL ADJUSTMENT STRETCHSTITCH FEED BALANCE TO CHECK: WHEN A STRETCH PATTERN IS SEWN WITH THE FEED BALANCING DIAL (C) SETAT THE STANDARD SETTING MARK " [_>", THE PATTERNSHOULD BE AS INDICATED WITH THE "0" MARK IN THE FOLLOWING FIGURE.

  • Page 41: Height Of Embroidery Presser Foot "P

    SEWING MACHINE DIV. 20 MODEL 385.19001890 MECHANICAL ADJUSTMENT HEIGHT OF EMBROIDERY PRESSER FOOT "P" TO CHECK: SETTHE NEEDLE BAR AT THE LOWEST POINT. LOWER THE PRESSER BAR WITH THE EMBROI- DERY FOOT "P" ATTACHED. THE DISTANCE B_EEN THE BO1TOM PART OF FOOT "P" AND THE SURFACE OF THE NEEDLE PLATESHOULD BETHE SAME AS THICKNESSOF THE GAUGE #U1790.

  • Page 42: Needlethread Tension

    SEWING MACHINE DIV. 20 MODEL 385.19001890 MECHANICAL ADJUSTMENT NEEDLETHREAD TENSION TO CHECK: WHEN THE POLYESTERSEWING THREAD _ (WHITE) IS PASSED THROUGH AND PULLED UP AS IN FIG.l, THE THREAD TENSION SHOULD BE 75_ "l° GRAMS (THE THREAD PULLING SPEED: APPROX. 110 MM/SEC.) WITH THE THREAD TENSION DIAL SETAT "4". ADJUSTMENT PROCEDURE: I.

  • Page 43: Bui-Ronhole Lever

    SEWtNG MACHINE DIV. 20 MODEL 385.19001890 MECHANICAL ADJUSTMENT BUTTONHOLE LEVER *IF THE STEPSDO NOT CHANGE OR THE ENDS OF STITCHESARE NOT IN LINE WHILE BUT- TONHOLE SEWING, ADJUST AS FOLLOWS: ENTER ADJUSTING MODE. TURN THE POWER SWITCH ON WHILE PRESSING THE START/ STOP KEY AND THE REVERSEKEY.

  • Page 44: Presser Bar Height And Alignment

    SEWING MACHINE DIV. 20 MODEL 385.19001890 MECHANICAL ADJUSTMENT PRESSER BAR HEIGHT AND ALIGNMENT TO CHECK: I. RAISE THE PRESSER FOOT LEVER. 2. THE DISTANCE BETWEEN THE ZIGZAG FOOT (A)AND THE NEEDLE PLATE (B)SHOULD 6.0 MM (0.24'). *IF THE HEIGHT ISGREATER OR LESSTHAN 6 MM (0.24"), ADJUST AS FOLLOWS. ADJUSTMENT PROCEDURE: I.
  • Page 45 SEWING MACHINE DIV. 2 0 MODEL 385.19001890 MECHANICAL ADJUSTMENT OVER LOAD (i) * "STOP FOR SAFETY PURPOSES"APPEARS ON THE SCREEN WHEN THE MACHINE ISOVER- LOADED TO CHECK: CHECK THE THREAD TAKE-UP LEVER AREA. IF THREAD ISJAMMED, REMOVE THE THREAD (SEE P.63). ALSO, CHECK "MOTOR BELTTENSION" (SEE P.57) AND "BACKLASH OF THE SHUTi'LEHOOK"...

  • Page 46: Over Load

    SEWING MACHINE DIV. 20 MODEL 385.19001890 MECHANICAL ADJUSTMENT OVER LOAD (2) ADJUSTMENT PROCEDURE: LOWER SHAFT LOOSEN THE 2 SCREWS (A). SLIDE THE LOWER SHAFT RING (B) TO THE LEFTSO THERE IS NO PLAY AND THE SHAFT TURNS SMOOTHLY. TIGHTEN THE 2 SCREWS (A). MAKE SURE THE LOWER SHAFT (C) HAS NO PLAY AND TURNS SMOOTHLY BY TURNING THE LOWER SHAFTTIMING GEAR (D).

  • Page 47: Adjustmentof Touch Panel

    SEWING MACHINE DIV. 20 MODEL 385.19001890 ADJUSTMENTOF TOUCH PANEL TO CHECK: IF, WHEN PRESSING THE TOUCH PANEL, A DIFFERENT STITCH IS SELECTED. ADJUST AS FOLLOWS. ADJUSTMENT PROCEDURE: TURN THE POWER SWITCH ON WHILE PRESSING THE UP/DOWN BUTTON, REVERSE BUT- TON, AND START/STOP BUTTON SIMULTANEOUSLY. ("PRESS+ MARK" AND "+" MARK ARE INDICATED ON THE LCD AT THIS TIME.) PRESSTHE CENTER OF THE "+"...
  • Page 48 SEWING MACHINE DIV. 20 MODEL 385.19001890 MECHANICAL ADJUSTMENT BOBBIN THREAD TENSION (I) *STANDARD BOBBIN THREAD TENSION IS 13 __ GRAMS. INSERTA BOBBIN WOUND WITH "KING" MARK POLYESTERTHREAD (#50 WHITE) INTO THE BOBBIN HOLDER. THREAD THE BOBBIN HOLDER AND AT[ACH THE END OF THE BOBBIN THREAD TO THE POINT OF THE TENSION METER.

  • Page 49: Bobbin Thread Tension (1),(2)

    IF A TENSION METER IS NOT AVAILABLE, THE BOBBIN THREAD TENSION CAN BE ADJUSTEDAS FOLLOWS: INSERTA BOBBIN WOUND WITH KENMORE EMBROIDERY THRAD (#204 YELLOW)(B) INTO THE BOBBIN HOLDER. THREAD THE BOBBIN HOLDER AND HANG ZIGZAG FOOT "A" AND OVEREDGE FOOT "C" ON THE END OF THE BOBBIN THREAD AS ILLUSTRATED.

  • Page 50: Partremoval And Replacement

    SEWING MACHINE DIV. 20 MODEL 385.19001890 PARTREMOVAL AND REPLACEMENT NEEDLETHREAD TENSION UNIT TO REMOVE: REMOVE THE FRONT COVER UNIT (SEE P.24). REMOVE SCREWS (A) AND (B) AND THE NEEDLE THREAD TENSION UNIT (C). TO ATTACH: REVERSETHIS PROCEDURE. NOTE: AFTER CHANGING THE NEEDLE THREAD TENSION UNIT, CHECK THE MECHANI- CAL ADJUSTMENT, "TENSION RELEASEMECHANISM"...

  • Page 51: Feed Dog

    SEWING MACHINE DIV. 20 MODEL 385.19001890 PARTREMOVAL AND REPLACEMENT FEED DOG TO REMOVE: REMOVE THE NEEDLE PLATE (A) BY REMOVING SCREW(B). REMOVE THE FEED DOG (C) BY REMOVING THE 2 SCREWS (D). TO ATrACH: I. SETTHE FEED DOG BY LIGHTLY TIGHTENING THE 2 SCREWS (D).

  • Page 52: Threader Plate

    SEWING MACHIN E DIV. 20 MODEL 385.19001890 PARTREMOVAL AND REPLACEMENT THREADER PLATE *WHEN THE HOOK (A) OF THE THREADER PLATE(8) IS DAMAGED, CHANGE OR ADJUST THE PART AS FOLLOWS: TO CHANGE THE THREADERPLATE: RAISE THE NEEDLE TO ITSHIGHEST POSITION AND LOWER THE THREADER KNOB (C) TO ITS LOWEST POSITION.

  • Page 53: C-Board Unit And Fuse

    SI=nA/IN G MACHINE DIV. 20 MODEL 385.19001890 PARTREMOVAL AND REPLACEMENT C-BOARD UNIT TO REMOVE: REMOVE THE BASE UNIT (A) AND SLIDE THE BASE (SEE P.23). LOOSEN THE 3 SCREWS (B). UNPLUG THE 4 CONNECTORS (C). TO ATTACH: REVERSETHISPROCEDURE. TO CHANGE THE FUSE AFTER REMOVING THE C-BOARD CASE UNIT (D), REMOVE 2 SCRE'WS(E) TO PULL OUT THE C-BOARD (F).

  • Page 54: Transformer

    SEWING MACHINE DIV. 20 MODEL 385.19001890 PARTREMOVAL AND REPLACEMENT TRANSFORMER TO REMOVE: REMOVE THE FRONT COVER UNIT (SEE P.24). REMOVE THE 2 CONNECTORS (RED, WHITE) OF THE TRANSFORMER (A) FROM C-BOARD CASE UNIT. REMOVE THE 2 SCREWS (B) AND PULL OUT THE TRANSFORMER (A), THEN CHANGE THE TRANSFORMER.

  • Page 55: Machine Socket Unit

    SEWING MACHINE DIV. 20 MODEL 385.19001890 PARTREMOVAL AND REPLACEMENT MACHINE SOCKET UNIT TO REMOVE: REMOVE THE BELTCOVER (SEE P.20) AND FRONT COVER UNIT (SEE P.24). PULL OUT THE CONNECTORS FROM C-BOARD CASE UNIT (A). REMOVE THE 2 SCREWS (B) AND CHANGE THE MACHINE SOCKET UNIT (C). TO AI'TACH: REVERSETHIS PROCEDURE.

  • Page 56: A-Board Unit

    SEWING MACHINE DIV. 20 MODEL 385.19001890 PART REMOVAL AND REPLACEMENT A-BOARD UNIT TO REMOVE: REMOV!e THE FRONT COVER UNIT (SEE P.24). PULL OUT THE LCD FLATCABLE (A) BY LIFTING THE CONNECTOR CLAMP, PULL OUT THE TOUCH PANEL CONNECTOR (B), SLIDE VOLUME (H) AND F-BOARD (C) CONNECTOR FROM A-BOARD.

  • Page 57: Lcd Unit

    SEWING MACHINE DIV. 2 0 MODEL 385.19001890 PARTREMOVAL AND REPLACEMENT LCD UNIT TO REMOVE: REMOVE THE FRONT COVER (SEE P.24) AND A-BOARD (SEE P.53). REMOVE 2 SCREWS (A). LOOSEN 2 SCREWS (B) AND REMOVE THE LCD FRAME UNIT (D). REMOVE 2 SCREWS (C). THEN REMOVE THE SETTING PLATE (E). TO ATTACH: I.

  • Page 58: F-Board Unit

    SEWING MACHINE DIV. 2 0 MODEL 385.19001890 PARTREMOVAL AND REPLACEMENT F-BOARD UNIT TO REMOVE: I. REMOVE THE FRONT COVER UNIT (SEEP.24). 2. PULL OUT THE F-BOARD CONNECTOR (A)FROM A-BOARD (B). 3. REMOVE THE 2 SCREWS (C),AND CHANGE F-BOARD. TO ATTACH: 4.

  • Page 59: Slide Volume Unit

    SEWING MACHINE DIV. 20 MODEL 385.19001890 PARTREMOVAL AND REPLACEMENT SLIDE VOLUME UNIT TO REMOVE: REMOVE THE FRONT COVER (SEE P.24) AND A-BOARD (SEE P.53). REMOVE THE SNAP RINGS CS-3 (A), AND CHANGE SLIDE VOLUME. TO ATTACH: REVERSETHIS PROCEDURE. * INSERTTHE SLIDE TAB INTI THE LOWER HOLE OF THE SLIDE KNOB. SLIDE VOLUME BOTTOM OF SLIDE KNOB SNAP RING (A)

  • Page 60: Dc Motor Unit And Belttension

    SEWING MACHINE DIV. 2 0 MODEL 3 85.19001890 PARTREMOVAL AND REPLACEMENT DC MOTOR UNIT AND BELT TENSION TO REMOVE: REMOVE THE BELTCOVER (SEE P.20). PULL OUT THE PLUG CONNECTOR FROM A-BOARD AND REMOVE THE 2 SCREWS (A). THEN REMOVE THE DC MOTOR UNIT (B). TO ATTACH: PASSTHE MOTOR CORD UNDER THE ARM RIB, THEN ATrACH THE MOTOR WITH 2 SCREWS (A) TEMPORARILY AS SHOWN BELOW.

  • Page 61: Carriage Platecover Unit

    SEWING MACHINE DIM 20 MODEL 385.19001890 PARTREMOVAL AND REPLACEMENT CARRIAGE PLATECOVER UNIT TO REMOVE: REMOVE THE CARRIAGE COVER CAP (A). (PULL THE CARRIAGE AWAY FROM THE MA- CHINE A LIT[LE AND PRY OFF THE COVER CAP WITH A SCREWDRIVER, AS SHOWN BE- LOW.) LOOSEN THE 3 SCREWS (B), AND REMOVE THE CARRIAGE PLATE COVER (C), TO ATTACH:...

  • Page 62: Bui-Ionhole Sensor

    SEWING MACHINE DIV. 20 MODEL 385.19001890 PARTREMOVAL AND REPLACEMENT BUTTONHOLE SENSOR TO REMOVE: REMOVE THE FRONT COVER (SEE P.24). REMOVE SCREW (A), AND DETACH THE BUTTONHOLE SENSOR (B). TO ATTACH: AI_ACH THE BUI-FONHOLE SENSOR (B) WITH SCREW (A). PULLTHE SENSOR FORWARD SO THAT IT TOUCHES THE SETTING PLATE.

  • Page 63: Upper Shaft Sensor

    SEWING MACHINE DIV. 20 MODEL 385.19001890 PARTREMOVAL AND REPLACEMENT UPPER SHAFT SENSOR TO REMOVE: REMOVE THE FRONT COVER (SEE P.24). PUSH THE HOLDERS (A) AND REMOVE THE UPPER SHAFT SENSOR UNIT (B). TO ATTACH: ATTACH THE NEW UPPER SHAFT SENSOR UNIT INTO THE SETTING PLATE. *AFTER REPLACING THE UPPER SHAFT SENSOR UNIT, MAKE SURE IT DOESN'T TOUCH THE UPPRESHAFT SHIELD PLATE(C).

  • Page 64: Zigzag Stepping Motor

    SEWING MACHINE DIV. 20 MODEL 385.19001890 PARTREMOVAL AND REPLACEMENT ZIGZAG STEPPING MOTOR TO REMOVE: REMOVE THE FRONT COVER (SEE P.24). REMOVE THE E-RING (B), AND 2 SCREWS. REMOVE THE MOTOR (C). TO ATTACH: MAKE SURE THE SMALL NOTCH MARK (F) IS IN LINE WITH THE CENTER OF CONNECTING ARM (D) THEN ATTACH THE ZIGZAG ROD (E) BY TIGHTNING THE 2 SCREWS (A).

  • Page 65: Feed Stepping Motor

    SEVVING MACHINE DIV. 20 MODEL 385.19001890 PARTREMOVAL AND REPLACEMENT FEEDSTEPPING MOTOR TO REMOVE: REMOVE THE FRONT COVER (SEE P.24), AND BASE UNIT (SEE P.23). REMOVE THE E-RING (B), AND 2 SCREWS (A). REMOVE THE MOTOR (C) TOGETHER WITH FEED ROD (D). TO ATrACH: MAKE SURE THE LARGE NOTCH MARK (G) IS IN LINE WITH THE CENTER OF THE PINS IN THE CONNECTING...

  • Page 66: How 1O Fixa Thread Jamming On Thethread Take-Up Lever

    SEWING MACHINE DIV. 20 MODEL 385,19001890 HOW TO FIX A THREADJAMMING ON THETHREAD TAKE-UPLEVER OPEN THE FACE PLATE AND LOOSEN THE SCREW (A) BY TURNING IN DIRECTION C (CLOClGNtSE). REMOVE THE JAMMED THREADS WITH THE TWEEZERS. TIGHTEN SCREW (A) BY TURNING IN DIRECTION OF B (COUNTERCLOCKWISE). NOTE: SCREW (A) IS A LEFT-HANDED SCREW.

  • Page 67: Checking Electronic Parts

    SEWING MACHINE DIV. 20 MODEL 385.19001890 CHECKING ELECTRONIC PARTS I.MACHINE SOCKET PRIMARY (POWER CORD, POWER SWITCH) *WITH THE POWER CORD CONNECTED AND THE POWER SWITCH TURNED ON, YOU SHOULD SEEAPPROXIMATELY 120 VOLTS AC (WITH A VOLT METER) ON THE PRIMARY CONNECTOR (N) (SEMI-OPAQUE).

  • Page 68: C-Board

    SEWING MACHINE DIV. 20 MODEL 385.19001890 CHECKING ELECTRONICPARTS 2. C-BOARD CONNECT THE TRANSFORMER TO C-BOARD AND TURN THE POWER SWITCH ON. THE MULTI-METER SHOULD SHOW 35-42 VOLTS DC AT THE SECONDARY CONNECTOR (M) (CNCA:BLUE). C) 2 [ WIRING DIAGRAM ] CNCT I CNCR 2.5A...

  • Page 69: F-Board Unit

    SEWING MACHINE DIV. 20 MODEL 385.19001890 CHECKING ELECTRONICPARTS 3. F'BOARD (CONNECTOR (I) CNFA) *WHEN THE START/STOP BUTTON ISPRESSED, PIN I ISSHORTED TO PIN 5. *WHEN THE REVERSE BUTrON ISPRESSED, PIN2 ISSHORTED TO PIN 5, .WHEN THE AUTO LOCK BUTTON ISPRESSED, PIN 3 ISSHORTED TO PiN 5. .WHEN THE NEEDLE UP/DOWN BUTTON ISPRESSED, PiN 4 ISSHORTED TO PIN 5.

  • Page 70: Dc Motor

    SEWING MACHINE DIV.20 MODEL 385.19001890 CHECKING FLECTRONICPARTS 4. DC MOTOR (CONNECTOR (C) CNMA) *RESISTANCE BETWEEN PIN 4 AND PIN 5 SHOULD BE OVER 1.7 OHMS. (MAKE SURE THE CORD IS NOT CUT.) PIN 5 (BLACK) PIN 4 (RED) 5. FOOT CONTROL *RESISTANCE BETWEEN THE TIP AND THE SLEEVE OF THE JACK SHOULD BE APPROXI- MATELY 0 OHMS.

  • Page 71: Stepping Motors

    SEWING MACHINE DIV. 20 MODEL 385,19001890 CHECK ELECTRONIC PARTS 6. STEPPING MOTORS ZIGZAG (D) AND FEED (E) STEPPING MOTORS: • RESISTANCEBE1M/EENPIN 4 AND PIN 5 PiN 4 AND PIN 6 PiN 9 AND PIN 8 PIN 9 AND PIN 7... SHOULD ALL BE APPROXIMATELY 12 OHMS.

  • Page 72: Care

    SEWING MACHINE DIV. 20 MODEL 385.19001890 CARE • CLEANING THE BOBBIN HOLDER LOOSE THREADS AND DUST MAY CAUSE PUCKERED STITCHES AND THREAD BREAKAGE DURING STITCHING. CHECK FOR LINT BUILD-UP AFTER EACH GARMENT IS COMPLETED. TURN OFF THE POWER SWITCH OR UNPLUG THE MACHINE.

  • Page 73: Oiling

    SEWING MACHINE DIV. 20 MODEL 385.19001890 OILING APPLY A FEW DROPS OF SEWING MACHINE OIL TO THE POINTS INDICATED BY THE AR- ROWS. RUN THE MACHINE FOR A FEW MINUTES TO LETTHE OIL WORK INTO THE BUSH- INGS. MOVE THE CARRIAGE BY HAND TO SPREAD OIL OVER THE GUIDE BARS. NOTE: MAKE SURE TO AVOID STAINING THE UPPER SHAFT SHIELD PLATE OR CIRCUIT BOARDS WITH OIL WHEN SPPLYING OIL TO POINTS (A) AND (B) BELOW.

  • Page 74: Special Tools Required

    SEWING MACHINE DIV. 20 MODEL 385.19001890 SPECIAL TOOLS REQUIRED THICKNESS GAUGE #LI 1790 *SOLENOID: P.35 *HEIGHT OF EMBROIDERY _DRIVER PRESSERFOOT P: P.38 *BUTrONHOLE LEVER P,40 *CARRIAGE PLATE COVER: FEED DOG HEIGHT GAUGE #68499 (*FEED DOG HEIGHT: P.32-33 PHILLIPSSCREW DRIVER NEEDLE HEIGHT GAUGE _58168 (*NEEDLE BAR HEIGHT: P.26-27 ) ALLEN SCREW DRIVER...

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