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9

MECHANICAL ADJUSTMENT

NEEDLE DROP

TO CHECK:

WHEN THE NEEDLE SWINGS IN MAXIMUM ZIGZAG WIDTH, THE DISTANCE BETWEEN

BOTH ENDS OF THE NEEDLE HOLE IN THE NEEDLE PLATE AND THE NEEDLE DROP

POSITIONS SHOULD 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 ADJUST THE NEEDLE DROP.

5.

TIGHTEN THE SETSCREW.

6.

ATTACH THE FACE COVER.

NOTE: CHECK THE HOOK TIMING AFTER THIS ADJUSTMENT.

ECCENTRIC PIN

SETSCREW

BOTH CLEARANCES SHOULD BE EQUAL

Summary of Contents for Denim Pro BL 18

Page 1: ...SERVICE MANUAL Denim Pro Model BL 18...

Page 2: ...GHT AND ALIGNMENT 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...

Page 3: ...HE FACE COVER 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 FOLLO...

Page 4: ...2 SERVICE ACCESS BASE PLATE TO REMOVE 1 REMOVE THE SETSCREWS A 2 REMOVE THE BASE PLATE TO ATTACH 3 MOUNT THE BASE PLATE AND SECURE IT WITH FOUR SETSCREWS BASE PLATE A...

Page 5: ...E 1 2 REMOVE DIALS 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 FROM THE REAR COVER WHEN REMOVING THE FRONT COVER TO ATTACH 4 M...

Page 6: ...N SETSCREWS A 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...

Page 7: ...DIAL AT 3 MAKE 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 3 2 TURN THE ADJUSTING NUT...

Page 8: ...SION SHOULD BE 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...

Page 9: ...E 1 2 REMOVE 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...

Page 10: ...WIDTH AND REMOVE 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...

Page 11: ...SITIONS SHOULD 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 ECCENT...

Page 12: ...ARANCE 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 THAT THE CLEARANCE BETW...

Page 13: ...TO ADJUST THE CLEARANCE BETWEEN 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 I...

Page 14: ...MM IF IT IS NOT 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...

Page 15: ...MENT PROCEDURE 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...

Page 16: ...RD 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 HANDWHEEL TOWARD YOU...

Page 17: ...AGAINST 10 STITCHES 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 AD...

Page 18: ...D FEEDING DURING STRETCH STITCH PATTERN SEWING MAKE AN ADJUSTMENT AS FOLLOWS ADJUSTMENT PROCEDURE 1 REMOVE THE CAP ON THE REAR COVER 2 SET THE PATTERN SELECTOR DIAL AT AND THE STITCH LENGTH DIAL AT 3...

Page 19: ...ERN SELECTOR DIAL AT AND THE STITCH LENGTH DIAL 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 FED FORWARD TURN THE ADJUSTING S...

Page 20: ...ARM TO THE PATTERN SELECTOR CAM 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 TH...

Page 21: ...LT DEFLECTION 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...

Page 22: ...20 L M WIRING 1 WIRING FOR MACHINE SOCKET UNIT M MOTOR L LAMP RIDGED WIERS...

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