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SERVICE MANUAL

JR 1218S

www.promelectroavtomat.ru

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Summary of Contents for JR 1218S

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

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