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8

MECHANICAL ADJUSTMENT

BOBBIN TENSION

TO CHECK:

SET THE BOBBIN IN THE BOBBIN CASE AND PASS THE THREAD (COTTON #50) THROUGH

THE TENSION SPRING.

THE BOBBIN THREAD TENSION SHOULD BE 45–55g WHEN PULLING THE THREAD IN THE

DIRECTION OF (A).

IF THE TENSION IS OUT OF THIS RANGE, ADJUST IT AS FOLLOWS:

ADJUSTMENT PROCEDURE:

1.

IF THE BOBBIN THREAD TENSION IS TOO TIGHT, TURN THE ADJUSTING SCREW (B)

IN THE DIRECTION OF (C).

2.

IF THE BOBBIN THREAD TENSION IS TOO LOOSE, TURN THE ADJUSTING SCREW (B)

IN THE DIRECTION OF (D)

(A)

(B)

(C)

(D)

COTTON THREAD #50

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Содержание 415

Страница 1: ...SERVICING MANUAL 419S 423S 415...

Страница 2: ...NAPPROPRIATE NEEDLE SEE MECHANICAL P 15 BAR HEIGHT ADJUSTMENT NEEDLE BAR HEIGHT 7 INAPPROPRIATE NEEDLE SEE MECHANICAL P 16 TO HOOK TIMING ADJUSTMENT NEEDLE TIMING TO SHUTTLE 8 INAPPROPRIATE NEEDLE SEE...

Страница 3: ...CH THREAD IS ADJUST THE POSITION OF WOUND ON THE BOBBIN STOPPER 3 LINT IS STUCK INSIDE THE CLEAN THE HOOK RACE HOOK RACE 4 THREAD QUALITY IS CHANGE TO A HIGH QUALITY TOO LOW SEWING THREAD 5 THREAD IS...

Страница 4: ...STMENT MOTOR BELT TENSION 4 UPPERSHAFTWORM ISLOOSE ELIMINATE THE LOOSENESS 5 NOT ENOUGH OIL OIL ALL MOVING PARTS 7 DEFORMATION 1 INAPPROPRIATE ZIGZAG SEE MECHANICAL P 10 OF PATTERN SYNCHRONIZATION ADJ...

Страница 5: ...SWING 10 NEEDLE DROP 11 CLEARANCE BETWEEN NEEDLE AND HOOK NO 1 12 CLEARANCE BETWEEN NEEDLE AND HOOK NO 2 13 FEED DOG HEIGHT 14 NEEDLE BAR HEIGHT 15 NEEDLE TIMING TO SHUTTLE 16 BUTTONHOLE FEED BALANCE...

Страница 6: ...P A AND SCREW B TO ATTACH 2 ATTACH THE FACE COVER WITH THE SCREW AND THEN REPLACE THE CAP FACE COVER B A TOP COVER TO REMOVE 1 REMOVE THE FACE COVER 2 LOOSEN THE SETSCREW C AND REME SETSCREWS D 3 REMO...

Страница 7: ...REMOVE 6 SCREWS B 3 REMOVE THE BASE TO ATTACH 4 FOLLOW THE ABOVE PROCEDURE IN REVERSE BELT COVER 1 REMOVE THE FACE COVER AND TOP COVER SEE PAGE 4 2 LOOSEN SCREW A 3 TAKE THE BELT COVER OUT TO ATTACH...

Страница 8: ...R TOP COVER BELT COVER AND BASE SEE PAGES 4 5 2 REMOVE THE PATTERN SELECTOR DIAL 3 LOOSEN SETSCREWS A AND B AND THEN REMOVE THE FRONT COVER BY REMOVING SETSCREWS C AND D TO ATTACH 4 FOLLOW THE ABOVE P...

Страница 9: ...N DIAL AT 3 MAKE SURE THE FOOT IS LOWERED IF THE TENSION IS OUT OF THE STANDARD RANGE ADJUST IT AS FOLLOWS ADJUSTMENT PROCEDURE 1 REMOVE THE TOP COVER SEE PAGE 4 2 TURN THE ADJUSTING NUT B IN THE DIRE...

Страница 10: ...ENSION SHOULD BE 45 55g WHEN PULLING THE THREAD IN THE DIRECTION OF A IF THE TENSION IS OUT OF THIS RANGE ADJUST IT AS FOLLOWS ADJUSTMENT PROCEDURE 1 IF THE BOBBIN THREAD TENSION IS TOO TIGHT TURN THE...

Страница 11: ...VE THE FACE COVER SEE PAGE 4 2 RAISE THE PRESSER FOOT LEVER AND LOOSEN THE SCREW B ON THE PRESSER BAR HOLDER ADJUST THE DISTANCE BETWEEN THE ZIGZAG FOOT C AND THE NEEDLE PLATE D TO 6 0 MM 0 24 3 TIGHT...

Страница 12: ...H AND REMOVE THE TOP COVER SEE PAGE 4 2 LOOSEN THE TWO SETSCREWS 3 ADJUST THE NEEDLE SWING BY TURNING THE HANDWHEEL WHILE HOLDING THE WORM SO AS NOT TO ROTATE IT UNTIL THE NEEDLE SWING STARTS AT 2 3 M...

Страница 13: ...ONS SHOULD BE EQUAL IF NOT ADJUST AS FOLLOWS ADJUSTMENT PROCEDURE 1 REMOVE THE FACE COVER SEE PAGE 4 2 SET THE PATTERN SELECTOR DIAL AT MAXIMUM ZIGZAG WIDTH 3 LOOSEN THE SETSCREW 4 TURN THE ECCENTRIC...

Страница 14: ...WEEN 0 05 TO 0 10 MM IF CLEARANCE IS TOO WIDE MOVE THE NEEDLE BAR SUPPORTER TO DIRECTION B IF CLEARANCE IS TOO NARROW MOVE THE NEEDLE BAR SUPPORTER TO DIRECTION C NOTE AFTER THIS ADJUSTMENT CHECK IF T...

Страница 15: ...HE NEEDLE AND THE SHUTTLE RACE IN THE RANGE OF 0 05 TO 0 10 MM 5 SET THE PATTERN SELECTOR DIAL AT STITCH WIDTH CONTROL AT 5 TURN THE HANDWHEEL TO CHECK IF THE CLEARANCE BETWEEN THE NEEDLE AND INNER ED...

Страница 16: ...NOT IN THE RANGE ADJUST AS FOLLOWS ADJUSTMENT PROCEDURE 1 REMOVE THE BASE SEE PAGE 5 2 LOWER THE PRESSER FOOT AND TURN THE HANDWHEEL TOWARD YOU UNTIL THE FEED DOG COMES TO ITS HIGHEST POINT 3 LOOSEN T...

Страница 17: ...ER SEE PAGE 4 2 SET THE PATTERN SELECTOR DIAL AT STITCH WIDTH CONTROL AT 0 3 OPEN THE BED COVER PLATE 4 REMOVE THE SHUTTLE RACE RING 5 TURN THE HANDWHEEL TOWARD YOU UNTIL THE TIP OF THE SHUTTLE HOOK M...

Страница 18: ...ANDWHEEL TOWARD YOU UNTIL THE TIP OF THE SHUTTLE HOOK MEETS THE LEFT SIDE OF THE NEEDLE 6 LOOSEN THE LOWER SHAFT CRANK ARM SCREWS A 7 WHILE HOLDING THE SHUTTLE HOOK SO IT DOESN T TURN TURN THE HANDWHE...

Страница 19: ...DE ROW AGAINST 10 STITCHES IN THE FORWARD FEEDING LEFT SIDE ROW IS CONSIDERED ACCEPTABLE ADJUSTMENT PROCEDURE 1 CHECK FEED BALANCE BY SEWING BUTTONHOLES 2 REMOVE THE TOP COVER SEE PAGE 4 3 TURN THE AD...

Страница 20: ...ARD FEEDING AND BACKWARD FEEDING ADJUST AS FOLLOWS ADJUSTMENT PROCEDURE 1 REMOVE THE TOP COVER SEE PAGE 4 2 SET THE PATTERN SELECTOR DIAL AT AND THE STITCH LENGTH CONTROL AT S S 3 TURN THE STRETCH STI...

Страница 21: ...LENGTH CONTROL AT 4 2 REMOVE THE TOP COVER SEE PAGE 4 3 PLACE A PIECE OF PAPER UNDER THE FOOT AND TURN THE HANDWHEEL IF THE PAPER IS FED FORWARD TURN THE ADJUSTING SCREW IN THE DIRECTION OF C IF THE...

Страница 22: ...CAM FOLLOWER TO THE ZIGZAG CAM STRAIGHT CAM AND PUT THE CAM FOLLOWER RELEASING ARM TO THE PATTERN SELECT CAM 4 LOOSEN THE SCREW 5 PUSH THE ADJUSTING PLATE IN THE DIRECTION OF ARROW UNTIL IT TOUCHES T...

Страница 23: ...IN THIS CONDITION ADJUST THE ZIGZAG WIDTH LINK SO THAT THERE IS NO PLAY IN BOTH CAM FOLLOWER AND RELEASING ARM AND THEN TIGHTEN THE SETSCREW AFTER THE ADJUSTMENT CHECK THE FOLLOWINGS MAKE SURE THE NE...

Страница 24: ...F STANDARD RANGE CHECK AND ADJUST AS FOLLOWS ADJUSTMENT PROCEDURE 1 REMOVE THE FACE COVER SEE PAGE 4 2 TURN THE ADJUSTING SCREW IN THE DIRECTION OF A IF THE BUTTONHOLE STITCH LENGTH IS LONGER THAN THE...

Страница 25: ...T DEFLECTION SHOULD BE 7MM 9MM WHEN PRESSING THE MIDDLE OF THE MOTOR BELT WITH APPROXIMATELY 300 GRAMS OF PRESSURE ADJUSTMENT PROCEDURE 1 REMOVE THE BELT COVER SEE PAGE 5 2 LOOSEN THE SCREWS A AND B 3...

Страница 26: ...24 WIRING FOR 110 120V FROM LAMP SOCKET FROM MOTOR FROM MOTOR FROM LAMP SOCKET FOR 220 240V...

Страница 27: ...PARTS LIST MODEL 423S 419S...

Страница 28: ...PARTS LIST 1 3 2 4 5 6 7 8 9 10 10 11 11 12 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 19 8 43 43 44 45 46 46 46 47 48 49 1...

Страница 29: ...013004 CRUCH ARM 26 000002105 SNAP RING E 3 27 303014005 BOBBIN WINDER SPRING 1 28 303015006 BOBBIN WINDER SPRING 2 29 000081005 SETSCREW 4X8 30 303624004 FACE PLATE UNIT U K CANADA 303624107 FACE PLA...

Страница 30: ...RTS LIST 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 5 34 5 8 9 120V 1 2 3 4 5 5 6 7 5 8 9 35 36 37 38 39 40 41 42 5 44 43 45 46 46 47 48 49 50 51 52 53 54 55 41 42 56 57 5...

Страница 31: ...21 000103509 SETSCREW 4X10 22 611520003 FOOT HOLDER UNIT 23 763048006 THUMB SCREW 24 303503006 TENSION REGULATOR UNIT 25 739016000 TOP COVER THREAD GUIDE 26 000103808 SETSCREW 3X5 27 000101703 SETSCR...

Страница 32: ...PARTS LIST 1 2 3 4 5 6 6 7 8 11 10 9 12 13 14 15 16 17 18 19 20 23 22 21 24 25 26 27 28 18 29 30 31 32 33 34 35 36 26 37 5...

Страница 33: ...16 840037004 NEEDLE THREADER LEVER SUPP 17 840034001 NEEDLE THREADER LEVER 18 000078319 SETSCREW 3X6 19 734625003 NEEDLE THREADER REGULATOR UNIT 20 734101008 NEEDLE THREADER REGULATOR 21 734102009 NE...

Страница 34: ...PARTS LIST 1 2 3 4 5 8 8 7 6 6 9 10 11 12 13 14 15 16 17 18 19 20 21 22 7...

Страница 35: ...029009 FELT 8 731312005 FELT 9 732003003 UPPER SHAFT REAR BUSHING 10 738634007 CRANK ROD UNIT 11 735064001 CRANK ROD PIN 12 000024206 SPRING PIN 3X30 13 502064003 CLUTCH RING 14 502065004 CLUTCH SPRIN...

Страница 36: ...PARTS LIST 1 2 3 4 4 7 8 9 10 11 12 13 14 14 14 15 16 17 18 19 20 21 22 23 24 7 25 26 27 28 29 30 31 31 32 32 33 34 31 5 5 6 6 9...

Страница 37: ...85007 FEED REGULATOR SPRING 17 735077007 FEED REGULATOR BODY SPRING 18 000101301 SETSCREW 5X10 19 730041007 SPRING SUSTAINER 20 303611008 REVERSE LEVER UNIT 21 303030007 REVERSE LEVER 22 303031008 REV...

Страница 38: ...PARTS LIST 1 7 8 9 11 4 12 13 14 10 2 3 4 4 5 6 4 4 4 15 16 17 10 18 19 20 21 22 11...

Страница 39: ...HING 8 626045407 CAP 9 735064001 CRANK ROD PIN 10 000110107 HEXAGONAL SOCKET SCREW 5X5 WP 11 738023007 LOWER SHAFT CRANK 12 647142008 LOWER SHAFT 13 738024008 LOWER SHAFT FRONT BUSHING 14 640038009 LO...

Страница 40: ...PARTS LIST 26 19 3 5 12 7 1 2 4 6 8 9 11 10 13 14 15 16 17 18 16 20 21 22 23 24 25 27 28 29 18 32 30 8 31 13...

Страница 41: ...T CRANK 14 102151006 SETSCREW 15 102205006 SETSCREW 16 738055008 STRAIGHT PIN 17 303033000 FEED LIFTING ARM SHAFT HOLDER 18 000111304 HEXAGONAL SOCKET SCREW 5X5 19 647607006 FORK ROD UNIT 20 102141003...

Страница 42: ...PARTS LIST 1 2 3 4 5 6 7 8 9 10 15...

Страница 43: ...NIT U S A CANADA 2 000060802 NUT 3 739037007 MACHINE SOCKET COVER 4 000107802 TAPPING SCREW 3X10B 5 000103509 SETSCREW 4X10 6 303615002 MOTOR UNIT AUSTRALIA U K 303616003 MOTOR UNIT U S A CANADA 30361...

Страница 44: ...PARTS LIST 1 2 3 4 5 6 7 8 9 10 11 12 13 17...

Страница 45: ...E FOOT 8 743815000 HEMMER FOOT 9 611406002 ZIPPER FOOT 10 674401002 HEM GUIDE 11 042870102 FOOT CONTROL AUSTRALIA 033870104 FOOT CONTROL U S A CANADA 042870401 FOOT CONTROL U K 042870308 FOOT CONTROL...

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