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Janome JEM GOLD 660, Руководство по обслуживанию

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CONTENTS

SERVICE ACCESS

FACE COVER ......................................................................................................... 2

BED COVER ........................................................................................................... 3

FRONT COVER ...................................................................................................... 4

REAR COVER ........................................................................................................ 5

MECHANICAL ADJUSTMENT

THREAD TENSION ................................................................................................. 6

PRESSER BAR HEIGHT AND ALIGNMENT ........................................................... 7

DISTRIBUTION OF NEEDLE SWING ...................................................................... 8

NEEDLE DROP ...................................................................................................... 9

NEEDLE BAR HEIGHT ......................................................................................... 10

HOOKTIMING ......................................................................................................... 1]

NEEDLE CLEARANCE TO HOOK ....................................................................... 12

BACKLASH (LOWER SHAFT GEAR) ................................................................... 13

FEED DOG HEIGHT ............................................................................................. 14

STRETCH STITCH BALANCE .............................................................................. 15

BUTTONHOLE STITCH BALANCE ....................................................................... 16

ADJUSTING THE LINE TACK WIDTH AND

DISENGAGEMENT CLEARANCE OF CAM FOLLOWER ............................ 17

WIRING OF TERMINAL BLOCK ............................................................................ 18

Содержание JEM GOLD 660

Страница 1: ...SERVICING MANUAL JEM GOLD 660...

Страница 2: ...HT AND ALIGNMENT 7 DISTRIBUTION OF NEEDLE SWING 8 NEEDLE DROP 9 NEEDLE BAR HEIGHT 10 HOOKTIMING 1 NEEDLE CLEARANCE TO HOOK 12 BACKLASH LOWER SHAFT GEAR 13 FEED DOG HEIGHT 14 STRETCH STITCH BALANCE 15...

Страница 3: ...2 SERVICE ACCESS FACE COVER To remove 1 Remove the screw and remove the face cover as shown below To attach 2 Follow the above procedure in reverse...

Страница 4: ...3 SERVICE ACCESS BED COVER To remove 1 Loosen the 5 screws and remove the bed cover To attach 2 Follow the above procedure in reverse...

Страница 5: ...ove 1 Remove the face cover and bed cover see pages 2 3 2 Pull out the pattern selector dial 3 Remove the screw A and rubber cushion 4 Loosen the screws B C D and remove the front cover To attach 5 Fo...

Страница 6: ...SERVICE ACCESS REAR COVER To remove 1 Remove the face cover bed cover and front cover see pages 2 3 4 2 Remove the screws A B C D E and rear cover To attach 6 Follow the above procedure in reverse 5...

Страница 7: ...e tension dial set at 4 Make sure the presser foot is lowered If the tension is out of the standard range adjust it as follows 1 Remove the front cover see page 4 2 If the thread tension is too tight...

Страница 8: ...the up position 1 Remove the face cover see page 2 2 Raise the presser foot and loosen the presser bar bracket screw and adjust the height 6 0 mm 3 Check to see if the presser foot is parallel to the...

Страница 9: ...cover see page 4 2 Set the pattern selector dial to maximum zigzag width stitch length dial at any position 3 Loosen the worm set screws 2 pcs 4 Hold the worm in place with a screwdriver or wrench an...

Страница 10: ...set at zigzag stitch in maximum zigzag width the clearance between the needle and the edge of the needle plate hole should be equal 0 2 mm or more at the left and right needle drop positions If not ma...

Страница 11: ...eedle at right needle drop position 2 Remove the face cover see page 2 3 Remove the set screw of the needle plate and pull out the bobbin holder 4 Turn the hand wheel toward you until the rotary hook...

Страница 12: ...needle position 2 Remove the bed cover see page 3 3 Remove the set screw on the needle plate and remove the needle plate and bobbin holder 4 Loosen the hexagonal screws on the lower shaft gear 5 Turn...

Страница 13: ...bobbin holder 3 Remove the bed cover see page 3 4 Loosen screws B and C and tighten screw A temporarily 5 Replace the needle with the test pin Turn the hand wheel toward you slowly by hand until the...

Страница 14: ...as follows 1 Remove the bed cover see page 3 2 Loosen the hexagonal socket screw 3 Turn the lower shaft bushing in the direction of B when the play at the point of the hook is too large Turn the lowe...

Страница 15: ...plate should be 0 75 to 0 85 mm if not adjust as follows 1 Set the stitch length dial at 4 and lower the presser foot 2 Turn the hand wheel toward you until the feed dog comes to its highest position...

Страница 16: ...an adjustment as follows 1 Set the pattern selector dial at 2 Place a piece of paper under the presser foot and turn the hand wheel toward you to check the forward A and backward B needle drop positi...

Страница 17: ...ainst 10 stitches in the left side row is considered acceptable 1 Sew a buttonhole and check both right and left row stitch densities 2 Remove the cap 3 If the left side row is denser than the right s...

Страница 18: ...t and left stitch widths should be even In an uneven setting the zigzag width claw will touch the cam when the pattern selector is turned 1 Remove the front cover see page 4 2 Adjust the line tack by...

Страница 19: ...18...

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