Kenmore 385.16231400 Service Manual Download

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Summary of Contents for 385.16231400

Page 1: ...SERVICE MANUAL SEWING MACHINE MODEL 385 16231400 OCTOBER 2003 ...

Page 2: ...DLE SWING 16 17 STRETCH STITCH BALANCE 18 19 FEED DOG HEIGHT 20 21 NEEDLE BAR HEIGHT 22 23 NEEDLE TO SHUTTLE TIMING 24 25 NEEDLE CLEARANCETO SHUTFLE 26 BACKLASH LOWER SHAFT GEAR 27 BUTTONHOLE STITCH BALANCE 28 29 NEEDLE POSITION 30 31 ZERO FEEDING 32 33 BASIC NEEDLE POSITION 34 BUTTONHOLE FUNCTION 1 35 BUTTONHOLE FUNCTION 2 36 BUTTONHOLE FUNCTION 3 37 NEEDLE THREADER PLATE 38 NEEDLE STOP POSITION ...

Page 3: ...hread Cu er Need_ Threader Needle Plate Hook Cover Plate Hook Cover Plate Release Bu on Bu onho e Pitch Balance Adjusting Lever HandwheeJ Stitch l Feed Balancing _ Reverse Con_o Button B_d Mop Bu on Exlension TaMe Accesso_ Box Car_4ngHandle Bu_onho_e Lever Presser Foot Lifter DropFeed Lever Nomenclature Plate Machine Socket presser Foot Snap_n Button ...

Page 4: ... PRESSURE IS TOO WEAK 2 INCORRECT F D HEIGHT 3 F D IS IN DOWN POSITION 4 THREAD ON BOTTOM SIDE OF FABRIC IS JAMMED UP 5 FEED DOG TEETH ARE WORN CHANGE THENEEDLE RETHREAD USETHERECOMMENDED SEWING NEEDLE AND THREAD USE A 11 BLUE TIP NEEDLE ADJUST THE PRESSER BAR LEVEL TO MAKE THE PRESSURE STRONGER SEE MECHANICAL ADJUSTMENT NEEDLE BAR HEIGHT SEE MECHANICAL ADJUSTMENT NEEDLE TO SHUTTLE TIMING SEE MECH...

Page 5: ...NEEDLE IS BENT OR WORN 3 NEEDLE IS HITTING THE SHUFFLE 4 THE FABRIC MOVES WHILE THE NEEDLE IS PIERCING IT OR THE NEEDLEZIGZAGS WHILE IN FABRIC 5 FABRICIS BEINGPULLEDTOO STRONGLY WHILE SEWING HOWTO FIX STARTWITH MEDIUMSPEED USE THE PROPER THREAD PATH REPLACE WITH A NEW NEEDLE ADJUST UPPER THREAD TENSION CORRECTLY USE APPROPRIATE NEEDLE FOR FABRIC AND THREAD IN USE CHANGE THE NEEDLE REPAIR THE HOLE ...

Page 6: ... 3 CHANGING TO BAR TACK IS TOO EARLYOR WILL NOT WORK 4 THE MACHINE STOPS TOO EARLY OR TOO LATE OR DOES NOT STOP HOW TO FIX SEE MECHANICAL ADJUSTMENT BACKLASH LOWER SHAFT GEAR ELIMINATE THE LOOSENESS SEE MECHANICAL ADJUSTMENT MOTOR BELT TENSION OIL ALL MOVING PARTS ELIMINATE THE LOOSENESS SEE MECHANICAL ADJUSTMENT STRETCH STITCH BALANCE SEE MECHANICAL ADJUSTMENT NEEDLE SWING SEE MECHANICAL ADJUSTME...

Page 7: ...E SPOOL ON A PIN WITH THE THREAD COMING FROM THE BACK OF THE SPOOL 1 DRAW THE THREAD THROUGH THE THREAD GUIDE 2 HOLDING THE THREAD TAUT WITH YOUR RIGHT HAND DRAW THE THREAD DOWN INTO THE TENSION AREA AND THEN AROUND THE CHECK SPRING HOLDER 3 FIRMLY DRAW THE THREAD UP AND THROUGH THE TAKE UP LEVER FROM RIGHT TO LEFT 4 PULL THE THREAD TO THE LEFT AND SLIP IT INTO THE NEEDLE BAR THREAD GUIDE 5 THREAD...

Page 8: ...DIV 20 MODEL 385 16231400 SERVICE ACCESS FACE COVER 1 OPEN THE FACE COVER A 2 REMOVETHE SETSCREWS B 3 TAKE THE FACE COVER A OFF TOP COVER 1 OPEN THE FACE COVER A 2 REMOVE SETSCREWS B AND C 3 TAKE THE TOP COVER D OFF 6 ...

Page 9: ...5 16231300 BASE PLATE SERVICE ACCESS 1 REMOVE THE FOUR SETSCREWS A 2 REMOVE THE BASE PLATE B BED COVER 1 2 REMOVE THE TWO SETSCREWS D REMOVE THE BED COVER E WHEN YOU REPLACE THE BED COVER SET THE DROP LEVER F IN THE LEFT POSITION 7 ...

Page 10: ...IDE OF BELT COVER tN THE DIRECTION OF THE ARROW AS ILLUSTRATED AND TAKE THE LATCH OFF AND THEN REMOVE THE BELT COVER WHEN YOU REA I FACH THE BELT COVER SET THE PROJECTION INTO THE GROOVE ON THE FRONT COVER FREE ARM COVER NEEDLE PLATE FREEARM COVER 1 REMOVE SETSCREW A AND THE NEEDLE PLATE 2 REMOVE THE BED COVER SEE PAGE 7 3 REMOVE SCREW B AND THE FREE ARM COVER 8 ...

Page 11: ...SCREWS A AND B 4 LOOSEN SETSCREWS C AND D THEN REMOVE THE FRONT COVER E 5 UNHOOK THE FRONT COVER FROM THE LATCH F OF THE REAR COVER 6 TAKE OFF THE LEFT BoTroM END OF THE FRONT COVER G 7 DISCONNECT THE CONNECTORS FOR PRINT BOARD F AND SLIDE VOLUME H NOTE TO DISCONNECT THE CONNECTORS REMOVE THE CIRCUIT BOARD COVER REFER TO PAGE 39 TO REPLACE FOLLOW THIS PROCEDURE IN REVERSE 9 ...

Page 12: ... COVER UNIT SEE P 6 THE BELT COVER SEE P 8 AND THE FRONT COVER SEE P 9 3 REMOVE SETSCREWS A B AND C AND LOOSEN SETSCREWS D E AND F 4 LOWER THE PRESSER FOOT LEVER AND PULL AWAY THE REAR PANEL UNIT FROM THE MACHINE FRAME TWIST AND REMOVE THE ARM COVER PART FROM THE PRESSER FOOT LEVER WHEN YOU REA I I ACH THE REAR PANEL PUT THE WINDOW ON THE PLASTIC PANEL OVER THE PRESSER FOOT LEVER AND THEN REPLACE ...

Page 13: ...OP TENSION SHOULD BE BETWEEN 75 AND 90g WHEN PULLING THE THREAD A UP IN THE DIRECTION OF B USE POLYESTER SEWING THREAD 50 WHITE IF IT IS NOT WITHIN THE ABOVE LIMITS ADJUST AS FOLLOWS ADJUSTMENT PROCEDURE 1 REMOVE THE FRONT COVER UNIT SEE P 9 2 PULL THE SPRING C AWAY FROM THE LEAD SCREW D 3 IF THE TOP TENSION IS TOO LOOSE TURN THE LEAD SCREW D IN THE DIRECTION OF E IF THE TOP TENSION IS TOO TIGHT T...

Page 14: ...WS ADJUSTMENT PROCEDURE 1 OPEN THE FACE COVER 2 RAISE THE PRESSER FOOT LEVER B AND LOOSEN THE HEXAGONAL SOCKET SCREW D ON THE PRESSER BAR HOLDER E 3 ADJUST THE DISTANCE BETWEEN THE ZIGZAG FOOT A AND THE NEEDLE PLATE C TO 6 0 aM 0 24 4 TIGHTEN THE SETSCREW D SECURELY NOTE WHEN YOU TIGHTEN THE SETSCREW D MAKE SURE THAT BOTH SIDES OF THE ZIGZAG FOOT A ARE PARALLEL WITH THE FEED DOG SLITS C_ 4 I 6MM c...

Page 15: ... AND ADJUST IT SO THAT THE LATERAL NEEDLE SWING STARTS FROM A POSITION 2MM 0 08 TO 3MM 0 12 ABOVE THE NEEDLE PLATE IN RIGHT OUTFLOW 4 TIGHTEN THE TWO HEXAGONAL SOCKET SCREWS ON THE UPPER SHAFT WORM 5 ATTACH THE TOP COVER UNIT NOTE FOR REMOVAL AND REPLACEMENT OF THE TOP COVER UNIT REFER TO PAGE 2 AFTER THE TIMING ADJUSTMENT OF THE LATERAL NEEDLE SWING MAKE SURE THAT THERE IS NO BACKLASH BETWEEN THE...

Page 16: ...HANICAL ADJUSTMENT STRAIGHT STITCHING TO CHECK 1 SET THE STITCH WIDTH CONTROL AT 0 AND THE STITCH SELECTOR AT 2 TURN THE HANDWHEEL BY HAND 3 THE NEEDLE SHOULD NOT SWING SIDE TO THE SIDE AT THIS SE I FING _SELECTED PATI ERN STITCH WIDTH CONTROL t4 ...

Page 17: ...L ADJUSTMENT STRAIGHT STITCHING ADJUSTMENT PROCEDURE 1 REMOVE THE TOP COVER SEE P 6 2 LOOSEN SETSCREW A 3 MOVE THE ZIGZAG WIDTH ROD B UNTIL THE NEEDLE CEASES ITS ZIGZAG MOVEMENT WHEN YOU TURN THE HANDWHEEL TOWARD YOU 4 RETIGHTEN SETSCREW A SECURELY 15 ...

Page 18: ... A PIECE OF PAPER ON THE NEEDLE PLATE AND LOWER THE PRESSER FOOT 5 LOWER THE NEEDLE TO MARK THE NEEDLE POINT A ON A PIECE OF PAPER BY TURNING THE HANDWHEEL 6 RAISE THE NEEDLE TO ITS HIGHEST POSITION 7 TURN THE STITCH WIDTH CONTROL TO 6 5 8 LOWER THE NEEDLE TO MARK THE NEEDLE POINTS B AND C ON THE PIECE OF PAPER BY TURNING THE HANDWHEEL 9 THE DISTANCE BETWEEN A B AND A C SHOULD BE EQUAL _SELECTED P...

Page 19: ...ISTRIBUTION OF NEEDLE SWING ADJUSTMENT PROCEDURE 1 OPEN THE FACE COVER AND LOOSEN HEXAGONAL SOCKET SCREW D 2 MOVE THE NEEDLE BAR SUPPORTER E IN EITHER DIRECTION UNTIL THE DISTANCES A TO B AND A TO C BECOME EQUAL 3 TIGHTEN HEXAGONAL SOCKET SCREW D SECURELY B A C D 17 ...

Page 20: ... AND THE STRETCH STITCH ADJUSTER AT _91 2 PLACE A PIECE OF PAPER ON THE NEEDLE PLATE AND LOWER THE PRESSER FOOT 3 TURN THE HANDWHEEL TO MARK NEEDLE POINTS ON THE PAPER 4 THE NEEDLE SHOULD PENETRATE THE SAME HOLE IN A FORWARD AND REVERSE DIRECTION WHILE TURNING THE HANDWHEEL TOWARDS YOU III III III SELECTED PATTERN STRETCH LENGTH V 0 _ 1 2 3 4 STITCH LENGTH CONTROL 18 ...

Page 21: ...DURE 1 REMOVE THE CAP F 2 IF THE REVERSE STITCH LENGTH B IS SHORTER THAN THE FORWARD STITCH LENGTH A TURN THE ADJUSTING SET SCREW E IN THE DIRECTION OF C IF THE REVERSE STITCH LENGTH B IS LONGER THAN THE FORWARD STITCH LENGTH A TURN THE ADJUSTING SET SCREW E IN THE DIRECTION OF D 0 X x A B A B A B FJ 19 ...

Page 22: ...SE THE PRESSER FOOT AND PLACE THE FEED DOG HEIGHT GAUGE 68496 ON THE NEEDLE PLATE 3 TURN THE HANDWHEEL AND CHECK THE FEED DOG HEIGHT 4 THE FEED DOG HEIGHT SHOULD BE INACCORDANCE WITH CHART 1 CHART 1 GAUGE FEED DOG HEIGHT FACE A FACE B 0 95MM 0 75MM NOT MOVING MOVING CORRECT NOT MOVING NOT MOVING LOW MOVING MOVING HIGH STRETCH LENGTH 0_1 2 3 4 _ m m STITCH LENGTH CONTROL 2O ...

Page 23: ...T ADJUSTMENT PROCEDURE 1 REMOVE THE BED COVER 2 LOOSEN THE NUT A AND THE SETSCREW B 3 TURN THE ADJUSTING SCREW C IN THE DIRECTION OF D WHEN THE FEED DOG HEIGHT IS LOW OR IN THE DIRECTION OF E WHEN THE FEED DOG HEIGHT IS HIGH 4 TIGHTEN THE NUT A AND THE SETSCREW B SECURELY E c 21 ...

Page 24: ...T GAUGE 68168 D PUSH IT UP UNTIL IT STOPS 4 TIGHTEN THE NEEDLE CLAMPSCREW E TO CHECK 1 TURN THE HANDWHEEL TOWARD YOU UNTIL THE NEEDLE BAR F REACHES ITS LOWEST POSITION IF THE FINGER G COMES DOWN ON TOP OF THE PIN H OR IF THE PIN I TOUCHES THE SURFACE OF THE GAUGE K TOO FORCEFULLY ADJUST IT IN ACCORDANCE THE INSTRUCTIONS ON THE NEXT PAGE 2 THE FACE OF THE FINGER G SHOULD HIT THE SIDE OF PIN H AND T...

Page 25: ...E FACE COVER 2 LOOSENTHE HEXAGONALSOCKET SCREW M ON THE NEEDLE BAR HOLDER L 3 MOVE THE NEEDLE BAR F UP OR DOWN TO ADJUST THE POSITION OF THE NEEDLE BAR F SO THAT THE FACE OF FINGER G HITS THE SIDE OF PIN H AND THE END OF PIN I TOUCHES THE SURFACE OF THE GAUGE K 4 TIGHTEN THE HEXAGONALSOCKET SCREW M SECURELY c 23 ...

Page 26: ...UGE FITS INTO THE SLOT NEAR THE TIP OF THE HOOK 3 PUT THE TEST PIN 68368 D IN TO THE NEEDLE HOLDER E PUSH UP IT UNTIL IT STOPS 4 TIGHTEN THE NEEDLE CLAMP SCREW F TO CHECK 1 TURN THE HANDWHEEL TOWARD YOU UNTIL THE TIP OF TEST PIN 68368 D SLIGHTLY TOUCHES THE RADIAL TIMING GAUGE 68497 C 2 THE TIP OF TEST PIN 68368 D SHOULD BE BETWEEN THE TWO WHITE LINES OF THE RADIAL TIMING GAUGE 68497 C IF THE TEST...

Page 27: ...VER SEE P 7 2 TURN THE HANDWHEEL TOWARD YOU UNTIL THE NEEDLE BAR REACHES THE LOWEST POSITION 3 LOOSEN HEXAGONAL SOCKET SCREWS G AND H 4 HOLD THE HANDWHEEL AND TURN THE LOWER SHAFT GEAR I UNTIL THE TEST PIN 68368 D COMES IN BETWEEN THE TWO WHITE LINES OF THE RADIAL TIMING GAUGE 68497 C 5 TIGHTEN HEXAGONAL SOCKET SCREWS G AND H G 25 ...

Page 28: ...E CLEARANCE BETWEEN THE TEST PIN A AND THE SHARP END B OF THE SHUTTLE HOOK SHOULD BE BETWEEN 0 05 0 002 AND 0 10 MM 0 004 ADJUSTMENT PROCEDURE 1 REMOVE THE BED COVER SEE P 7 2 LOOSEN SETSCREWS C D AND E 3 TIGHTEN SETSCREW C TEMPORARILY 4 MOVE THE PLATE F IN EITHER DIRECTION AS SHOWN BY THE ARROW UNTIL THE CLEARANCE BETWEEN THE TEST PIN A AND THE SHARP END B OF THE SHUTTLE HOOK BECOMES BETWEEN 0 05...

Page 29: ... WITHIN 0 8 MM 0 03 IF THERE IS MORE THAN A 0 8 MM 0 03 BACKLASH BETWEEN THE GEARS ADJUST AS FOLLOWS ADJUSTMENT PROCEDURE 1 REMOVE THE BED COVER SEE P 7 AND LOOSEN HEXAGONAL SOCKET SCREW c 2 TURN THE LOWER SHAFT BUSHING ECCENTRIC BUSHING D IN DIRECTION E WHEN THE PLAY AT THE SHU1 FLE HOOK TIP IS TOO SMALL 3 TURN THE LOWER SHAFT BUSHING ECCENTRIC BUSHING D IN DIRECTION F WHEN THE PLAY AT THE SHUFFL...

Page 30: ...DTH CONTROL 6 5 2 A I I ACH THE AUTOMATIC BUTTONHOLE FOOT 3 SEW A BUTFONHOLE AND CHECK THE STITCH BALANCE BETWEEN THE RIGHT AND LEFT SIDES OF THE BUTTONHOLE 4 THE CORRECT BUTTONHOLE STITCH BALANCE IS WHEN THERE IS THE SAME COARSE ON THE RIGHT AND LEFT SIDES OF THE BUTTONHOLE _ WIDTH 0 1 2 3_4_5_6 5 STRETCH LENGTH V 0_1_2 3 4 STITCH WIDTH CONTROL STITCH LENGTH CONTROL H SELECTED PATTERN 28 ...

Page 31: ...ER SEE P 7 2 LOOSEN HEXAGONAL SOCKET SCREW A 3 IF THE RIGHT SIDE OF THE BUTFONHOLE IS TOO SPARSE TURN THE RING B IN THE DIRECTION OF C IF THE LEFT SIDE OF THE BUTTONHOLE IS TOO SPARSE TURN THE RING B IN THE DIRECTION OF D 4 TIGHTEN HEXAGONAL SOCKET SCREW A SECURELY RING B O HEXAGONAL SOCKET SCREW 4 INCORRECT CORRECT INCORRECT 0 29 ...

Page 32: ... 1 SET THE MACHINE AS FOLLOWS STITCH SELECTOR STITCH WIDTH CONTROL 6 5 2 TURN THE HANDWHEELTOWARD YOU UNTIL THE NEEDLE COMES TO THE CENTER POSITION 3 THE NEEDLE SHOULD NOT MOVE WHEN YOU TURN THE STITCH WIDTH CONTROL TO 0 F_ WIDTH 0 1 2 3_4_5_6 5 C SELECTED PATrERN STITCH WIDTH CONTROL 3O ...

Page 33: ...EE P 6 2 TURN THE HANDWHEEL TOWARD YOU UNTIL THE NEEDLE COMES TO THE CENTER OF THE SLIT IN THE NEEDLE PLATE 3 LOOSEN SETSCREWS A AND B 4 TIGHTEN SETSCREW A SLIGHTLY 5 MOVE THE PLATE C IN EITHER DIRECTION AS SHOWN BY THE ARROW UNTIL THE NEEDLE CEASES TO MOVE EVEN IF THE DIAL IS MOVED FROM MAXIMUM ZIGZAG WIDTH TO ZERO A B C 31 ...

Page 34: ...TOR TO _ AND THE STITCH LENGTH CONTROL TO 0 2 PLACE A PIECE OF PAPER ON THE NEEDLE PLATE 3 CHECK IF THE PAPER MOVES FORWARD OR BACKWARD WHEN YOU TURN THE HANDWHEEL TOWARD YOU 4 THE MACHINE SHOULD NOT FEED A PIECE OF PAPER AT THIS SE I FING I STRETCH LENGTH I V 0_1_ 2 3 4 SELECTED PATTERN STITCH LENGTH CONTROL 32 ...

Page 35: ...REMOVE THE BELT COVER SEE P 8 2 SET THE STITCH SELECTOR AT _ AND THE STITCH LENGTH CONTROL AT 0 3 PLACE A PIECE OF PAPER ON THE NEEDLE PLATE 4 IF THE PAPER MOVES FORWARD TURN THE ADJUSTING SCREW C IN DIRECTION A IF THE PAPER MOVES BACKWARD TURN THE ADJUSTING SCREW C IN DIRECTION B FORWARD BACKWARD 33 ...

Page 36: ...E P 8 2 SELECT THE LEFT NEEDLE POSITION IN MAXIMUM ZIG ZAG THEN SELECT THE LEFT NEEDLE POSITION IN STRAIGHT SEWING 3 IF THE RESULT LOOKS LIKE A SEE BELOW TURN THE ADJUSTING SCREW IN DIRECTION D IF THE RESULT LOOKS LIKE B SEE BELOW TURN THE ADJUSTING SCREW IN DIRECTION C 4 REPLACE THE BELT COVER SEE P 8 ADJL S 7 1NGSCRE I4L__ c NEEDLE POSITION IN MAXIMUM ZIGZAG i i i NEEDLE POSITION IN STRAIGHT SEW...

Page 37: ...ENT PROCEDURE 1 LOWER THE FEED DOG AND ATTACH THE BH FOOT R THEN LOWER THE PRESSER BAR 2 LOOSEN SETSCREW A 3 PULL DOWN THE BH LEVER UNTIL IT TOUCHES FOOT R AND THE BAR B HITS THE FRONT BASE PLATE ALSO MAKE SURE THE BH LEVER ADJUSTING PLATE C TOUCHES THE FINGER D TIGHTEN SETSCREW A 4 RAISE THE FEED DOG AND SEW A BUTTONHOLE THEN CHECK THE LENGTH SHORT STANDARD LONG FRONT BASE PLA TE BH LEVER ADJUS _...

Page 38: ...AR TACK IS SEWN AT ALL ADJUST AS FOLLOWS ADJUSTMENT PROCEDURE 1 REMOVE THE BELT COVER SEE P 8 2 A IF THE BARTACK IS SEWN TOO EARLY TURN THE HEXAGONALSOCKET SCREW E IN DIRECTION C B IF THE BAR TACK IS SEWN TOO LATE TURN THE HEXAGONALSOCKET SCREW E IN DIRECTION D 3 ATrACH THE BELTCOVER SEE P 8 BAR TACK IS SEWN TOO EARLY BAR TACK IS SEWN TOO LATE 36 ...

Page 39: ...PLATE B IN THE DIRECTION OF D 5 TIGHTEN THEADJUSTING SCREW A 6 ATrACH THE FACE COVER NOTE IF THE MACHINE WILL NOT STOP WHEN PUSHING THE BH LEVER IN THE DIRECTION OF THE ARROW ADJUST THE POSITIONNN OF THE MICRO SWITCH AS FOLLOWS 1 SEW UP TO STEP 4 AND STOP THE MACHINE REMOVE THE BELT COVER 2 LOOSENTHESETSCREW E ADJUSTTHEGAPTO1 MMBYSHIFTING THESWlTCH HOLDER F SO THE MICRO SWITCH G IS ON TIGHTEN THE ...

Page 40: ...THREADER PLATE HOLDER C UP UNTIL IT SNAPS IN PLACE ADJUSTMENTPROCEDURE 1 IF THE THREADER HOOK THRUSTS OR HITS AGAINST EITHER LEFT OR RIGHT EDGE OF THE NEEDLE EYE LOOSEN THE SETSCREW C AND ADJUST THE POSITION OF THE THREADER PLATE H SEE FIG 2 2 IF THE THREADER HOOK THRUSTS AGAINST EITHER TOP OR BOTFOM EDGE OF THE NEEDLE EYE OR MISSES THE NEEDLE EYE OPEN THE FACECOVERAND LOOSEN THE SETSCREW D MOVE T...

Page 41: ...ION 3 IF THE NEEDLE POINT IS HIGHER THAN 14 MM LOOSEN THE SETSCREW C AND TURN THE UPPER SHAFT SHIELDING PLATE D IN THE DIRECTION OF A 4 IF THE NEEDLE POINT IS LOWER THAN 10 MM LOOSEN THE SETSCREW C AND TURN THE UPPER SHAFT SHIELDING PLATE D IN THE DIRECTION OF B 5 TIGHTEN THE SETSCREW 6 PRESS THE START STOP BUTFON TWICE AND CHECK THE NEEDLE STOP POSITION ATTACH THE TOP COVER NOTE CHECK IF THE NEED...

Page 42: ...E THE CIRCUIT BOX COVER B 3 REMOVE THE 4 SETSCREWS C AND PULL OUT ALL THE CONNECTORS 4 REPLACE THE CIRCUIT BOARD B D AND ATTACH IT WITH THE SETSCREWS C 5 INSERT THE CONNECTORS SEE PAGE 41 FOR CONNECTOR LOCATION 6 ATTACH THE CIRCUIT BOX COVERAND BASE PLATE TO REPLACE THE FUSE 1 PRY OUTTHE FUSE E WITHASCREWDRIVER 2 REPLACE THE FUSE E AND PUSH IT DOWN INTO THE FUSE CLIP F B 4 c F c c o 4O ...

Page 43: ...CONDARY 4 SLIDEVOLUME CONNECTOR 5 UPPER SHAFT SENSOR CONNECTOR 6 BH SELECTING SWITCH CONNECTOR 7 BH LIMtTER SWITCH CONNECTOR 8 BOBBIN WINDING SWITCH CONNECTOR 9 CIRCUIT BOARD F CONNECTOR 10 MOTOR CONNECTOR 11 TRANSFORMER CONNECTOR PRIMARY 12 MACHINE SOCKET CONNECTOR PRIMARY 12 11 __ 10 1 I I I I I 1_ r I 9 8 7 6 j3 4 5 41 ...

Page 44: ...EMENT OF TRANSFORMER TO REMOVE 1 REMOVE THE CIRCUIT BOARD COVER SEE PAGE 39 2 DISCONNECT THE TRANSFORMER CONNECTORS A FROM THE CIRCUIT BOARD B 3 REMOVE THE 2 SETSCREWS B AND REMOVE THE TRNSFORMER C TO REPLACE FOLLOW THIS PROCEDURE IN REVERSE c 4 42 ...

Page 45: ... OVERLOAD THE MOTOR A TOO LOOSE MOTOR BELT TENSION MAY CAUSE THE BELT TEETH TO JUMP OVER THE PULLEY 2 THE CORRECT MOTOR BELT TENSION IS ACHIEVED WHEN THE BELT IS PUSHED IN ABOUT 7MM 0 28 9MM 0 36 UNDER A PRESSURE OF ABOUT 300 GRAMS ADJUSTMENT PROCEDURE 1 REMOVE THE BELT COVER SEE P 8 2 LOOSEN SETSCREWS A AND B 3 MOVE THE MOTOR UP OR DOWN TO ADJUST THE DEFLECTION TO ABOUT 7MM 0 28 9aM 0 36 4 TIGHTE...

Page 46: ...T ROUTINE OILING BUT YOU SHOULD STILL CHECK FOR POSSIBLE LUBRICATION NEEDS WHENEVER SERVICING THE MACHINES OIL USE GOOD QUALITY SEWING MACHINE OIL AT THE POINTS A B C D E F G INDICATED BY THE BLACK ARROWS GREASE USE WHITE GREASE SUCH AS MOLYCOTE EM 40M AT THE POINTS H I J INDICATED BY THE WHITE ARROWS __ _ I J r I J 44 ...

Page 47: ... 385 16231300 SPECIAL TOOLS REQUIRED _WDRIVER FEED DOG HEIGHT GAUGE 68496 NEEDLE HE GHT GAUGE 68 68 PHILLIPS SCREW DRIVER TESTPIN _8368 ALLEN SCREWDRIVER ALLEN WRENCH RADIAL TIMING GAUGEX_BB497 RADIAL TIMING GAUGE SHEET UI369G 45 ...

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