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MECHANICAL ADJUSTMENT

BUTTUNHOLE FUNCTION

TO CHECK:

BOTTONHOLES SHOULD BE ABOUT 3MM LONGER THAN THE LENGTH SET BY THE R

FOOT.

IF THIS LENGTH CANNOT BE OBTAINED, THEN CHECK AND ADJUST AS FOLLOWS:

ADJUSTMENT PROCEDURE:

OPEN THE FACE COVER.

TURN THE ADJUSTING SCREW IN THE DIRECTION OF (A) IF THE BUTTONHOLE

STITCH LENGTH IS LONGER THAN THE STANDARD,OR IN THE DIRECTION OF (B) IF

THE BUTTONHOLE STITCH LENGTH IS SHORTER THAN THE STANDARD.

STANDARD

ADJUSTING SCREW

ABOUT 3MM

BUTTONHOLE

LEVER

(A)

(B)

www.promelectroavtomat.ru

Содержание JR 1218S

Страница 1: ...SERVICE MANUAL JR 1218S www promelectroavtomat ru...

Страница 2: ...7 NEEDLE SWING 8 NEEDLE DROP 9 CLEARANCE BETWEEN NEEDLE AND HOOK ADJUSTMENT METHOD NO 1 10 ADJUSTMENT METHOD NO 2 11 FEED DOG HEIGHT 12 NEEDLE BAR HEIGHT 13 NEEDLE TIMING TO SHUTTLE 14 DISTPRTED PATTE...

Страница 3: ...BY REMOVING THE CAP A AND SETSCREW B BELT COVER TO REMOVE 1 LOOSEN SETSCREW C 2 TAKE THE BELT COVER OUT TO ATTACH 3 FOLLOW THE ABOVE PROCEDURE IN REVERSE C C BELT COVER TO ATTACH 2 FOLLOW THE ABOVE P...

Страница 4: ...2 SERVICE ACCESS BASE PLATE TO REMOVE 1 LOOSEN THE SETSCREWS A 2 REMOVE THE BASE PLATE TO ATTACH 3 MOUNT THE BASE PLATE AND SECURE IT WITH FOUR SETSCREWS BASE PLATE A www promelectroavtomat ru...

Страница 5: ...E DIAL A B 3 LOOSEN SETSCREWS C D E F AND G REMOVE SETSCREWS H I AND J AND THEN REMOVE THE FRONT COVER NOTE UNHOOK THE TAB K OF THE REAR COVER WHEN REMOVING THE FRONT COVER TO ATTACH 4 MOUNT THE FRONT...

Страница 6: ...B C AND D 2 PCS REMOVE SETSCREWS E F G AND H AND THEN REMOVE THE REAR COVER NOTE REMOVE THE REAR COVER IN THE ORDER OF X LOWER PART Y UPPER PART Z PRESSER FOOT LIFTER PART REMOVE THE BED COVER TOGETH...

Страница 7: ...KE SURE THE FOOT SHOULD BE LOWERED IF THE TENSION IS OUT OF THE STANDARD RANGE ADJUST IT AS FOLLOWS ADJUSTMENT PROCEDURE 1 REMOVE THE FRONT COVER UNIT SEE PAGE 6 2 TURN THE ADJUSTING NUT C IN THE DIRE...

Страница 8: ...E 45 55g WHEN PULLING THE THREAD IN THE DIRECTION OF B IF THE TENSION IS OUT OF THE RANGE ADJUST IT AS FOLLOWS ADJUSTMENT PROCEDURE 1 TURN THE ADJUSTING SCREW C IN THE DIRECTION OF D WHEN THE BOBBIN T...

Страница 9: ...THE SCREW B AND THE LAMP SOCKET THEN LOOSEN THE SCREW C ON THE PRESSER BAR HOLDER ADJUST THE DISTANCE BETWEEN THE PRESSER FOOT D AND THE NEEDLE PLATE D TO 6 0 MM 0 24 3 TIGHTEN THE SCREW C SECURELY 4...

Страница 10: ...OVE THE FRONT COVER SEE PAGE 3 2 LOOSEN 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 2 3 MM ABOVE THE NE...

Страница 11: ...D BE EQUAL IF NOT ADJUST AS FOLLOWS ADJUSTMENT PROCEDURE 1 REMOVE THE FACE COVER SEE PAGE 1 2 SET THE PATTERN SELECTOR DIAL AT MAXIMUM ZIGZAG WIDTH 3 LOOSEN THE SETSCREW 4 TURN THE ECCENTRIC PIN TO AD...

Страница 12: ...05 TO 0 10 MM IF CLEARANCE IS TOO WIDE MOVE THE NEEDLE BAR SUPPORTER IN THE DIRECTION B IF CLEARANCE IS TOO NARROW MOVE THE NEEDLE BAR SUPPORTER IN THE DIRECTION C NOTE AFTER THIS ADJUSTMENT CHECK TH...

Страница 13: ...N THE NEEDLE AND THE SHUTTLE RACE IN THE RANGE OF 0 05 TO 0 10 MM 5 SET THE PATTERN SELECTOR DIAL AT TURN THE HANDWHEEL TO CHECK IF THE CLEARANCE BETWEEN THE NEEDLE AND INNER EDGES OF THE SHUTTLE RACE...

Страница 14: ...IN THE RANGE ADJUST AS FOLLOWS ADJUSTMENT PROCEDURE 1 OPEN THE SHUTTLE COVER 2 LOWER THE PRESSER FOOT AND TURN THE HANDWHEEL TOWARD YOU UNTIL THE FEED DOG COMES TO ITS HIGHEST POINT 3 LOOSEN THE SCREW...

Страница 15: ...E 1 OPEN THE FACE COVER 2 SET THE PATTERN SELECTOR DIAL AT 3 OPEN THE SHUTTLE COVER 4 REMOVE THE SHUTTLE RACE RING 5 TURN THE HANDWHEEL TOWARD YOU UNTIL THE TIP OF THE SHUTTLE HOOK MEETS THE LEFT SIDE...

Страница 16: ...L 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 HANDWHEEL TOWARD YOU UNTIL THE...

Страница 17: ...DING AND BACKWARD FEEDING DURING STRETCH STITCH PATTERNS MAKE AN ADJUSTMENT AS FOLLOWS ADJUSTMENT PROCEDURE 1 REMOVE THE CAP 2 SET THE PATTERN SELECTOR CONTROL AT AND THE STITCH LENGTH CONTROL AT S S...

Страница 18: ...TITCHES IN THE LEFT SIDE ROW FORWARD FEEDING IS CONSIDERED ACCEPTABLE ADJUSTMENT PROCEDURE 1 CHECK THE FEED BALANCE BY SEWING BUTTONHOLES 2 REMOVE THE CAP ON THE FRONT COVER 3 TURN THE ADJUSTING SCREW...

Страница 19: ...ELECTOR CONTROL AT AND THE STITCH LENGTH CONTROL AT 4 2 REMOVE THE FRONT COVER SEE PAGE 3 3 PLACE A PIECE OF PAPER UNDER THE FOOT AND TURN THE HANDWHEEL IF THE PAPER IS FEED FORWARD TURN THE ADJUSTING...

Страница 20: ...NED THEN CHECK AND ADJUST AS FOLLOWS ADJUSTMENT PROCEDURE 1 OPEN THE FACE COVER 2 TURN THE ADJUSTING SCREW IN THE DIRECTION OF A IF THE BUTTONHOLE STITCH LENGTH IS LONGER THAN THE STANDARD OR IN THE D...

Страница 21: ...AM 4 LOOSEN THE SET SCREW 5 PUSH THE CONVEX PART OF THE CAM FOLLOWER RELEASING ARM IN THE DIRECTION OF ARROW UNTIL THE CAM FOLLOWER RELEASING ARM TOUCHES POSITION A OF THE PATTERN SELECTOR CAM AND THE...

Страница 22: ...SHOULD BE 7 MM 9 MM WHEN PRESSING THE MIDDLE OF THE MOTOR BELT WITH APPROXIMATELY 300 GRAMS OF PRESSURE ADJUSTMENT PROCEDURE 1 REMOVE THE BELT COVER SEE PAGE 1 2 LOOSEN THE SCREWS A AND B 3 MOVE THE...

Страница 23: ...21 M L WIRING 1 WIRING FOR MACHINE SOCKET UNIT M MOTOR L LAMP www promelectroavtomat ru...

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