Janome HD718 Скачать руководство пользователя | Manualshive

Страница: 27 / 55

background image

25

STANDARD

Front base plate

LONG

SHORT

Longer

Shorter

BH lever adjusting

plate (C)

Setscrew (A)

BH lever

Pulling bar (B)

Touching

(D)

HItting front

base plate

Touching foot R

MECHANICAL ADJUSTMENT

BUTTONHOLE FUNCTION (1)

* A buttonhole sewn with the automatic buttonhole foot will be 3 mm longer than the actual

button. The length can be adjusted as follows:

ADJUSTMENT PROCEDURE:

1.

Lower the feed dog and attach foot R, Then lower the presser bar.

2.

Loosen the setscrew (A).

3.

Pull down the BH lever until it touches foot R, and the bar (B) hits the front base plate. Also,
make sure BH lever adjusting plate (C) touches finger (D). Tighten setscrew (A).

4.

Lower the feed dog and sew a buttonhole. Then, check the buttonhole length.

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Содержание HD718

Страница 1: ...SERVICE MANUAL PARTS LIST MODEL HD718 First Edition 19 May 2017...

Страница 2: ...STRIBUTION OF NEEDLE SWING 13 STRETCH STITCH BALANCE 14 15 FEED DOG HEIGHT 16 CLEARANCE BETWEEN NEEDLE AND HOOK 17 NEEDLE TO HOOK TIMING 18 NEEDLE BAR HEIGHT 19 BACKLASH LOWER SHAFT GEAR 20 BUTTONHOLE...

Страница 3: ...needle See mechanical adjustment P 19 bar height Needle bar height 8 Inappropriate needle See mechanical adjustment P 18 to hook timing Needle to hook timing 9 Inappropriate needle See mechanical adju...

Страница 4: ...bobbin correctly bobbin bobbin 2 Too much thread is Adjust the position of around on the bobbin bobbin winder stopper 3 Lint is stuck inside the Clean the shuttle bobbin holder 4 Thread quality is Ch...

Страница 5: ...stment Motor belt tension 4 Not enough oil Oil all moving parts 5 Upper shaft is loose Eliminate the looseness 7 Deformation 1 Inappropriate feed See mechanical P 14 15 pattern balance adjustment Stre...

Страница 6: ...r A 2 Remove the setscrews B 3 Take the face cover A off A B A B C D E F 1 Open the face cover A 2 Remove setscrews B and C 3 Take the top cover D off When you replace the top cover set the projection...

Страница 7: ...SE PLATE 1 Remove 4 setscrews A 2 Remove the base plate B BED COVER 1 Remove 2 setscrews D 2 Remove the bed cover E When you replace the bed cover set the drop lever F in the left position as illustra...

Страница 8: ...and take the latch off Then remove the belt cover When you attach the belt cover set the projection into the groove of the front cover FREE ARM COVER 1 Remove setscrew A and the needle plate 2 Remove...

Страница 9: ...ee page 4 and the belt cover See page 6 3 Remove setscrew A B 4 Loosen setscrews C D then remove the front cover E 5 Pull the front cover off the latch F of the rear cover 6 Remove the lower part of t...

Страница 10: ...ews D F 4 Lower the presser foot lever and pull away the rear panel unit from the machine frame Twist and remove the arm cover part from the presser foot lever When you attach the rear panel put the W...

Страница 11: ...e thread A up in the direction of B If it is not within the above limits adjust as follows Use polyester sewing thread 50 white ADJUSTMENT PROCEDURE 1 Remove the front cover unit See page 7 2 Pull the...

Страница 12: ...pen the face cover 2 Raise the presser foot lever B and loosen the hexagonal socket screw D on the presser bar holder E 3 Adjust the distance between the zigzag foot A and the needle plate C to 6 0 mm...

Страница 13: ...until the needle swing starts at 2 to 3 mm above the needle plate after the needle has came from the right side of the needle hole 4 Tighten the two hexagonal socket screws on the upper shaft worm 5 A...

Страница 14: ...rn the handwheel toward you 3 The needle should not swing side to side at this setting ADJUSTMENT PROCEDURE 1 Remove the top cover See page 4 2 Loosen the setscrew A 3 Move the zigzag width rod B unti...

Страница 15: ...edle point A on a piece of paper by turning handwheel 6 Raise the needle to its highest position 7 Turn the stitch width dial to 6 5 8 Lower the needle to mark needle points B and C on the piece of pa...

Страница 16: ...osition and stretch stitch adjuster at 2 Place a piece of paper on the needle plate and lower the presser foot 3 Turn the handwheel to mark needle points on the paper 4 The needle should penetrate the...

Страница 17: ...E 1 Remove the cap F 2 If the reverse stitch length B is shorter than the forward stitch length A turn the adjusting setscrew E in the direction of C If the reverse stitch length B is longer than the...

Страница 18: ...set at 3 and the presser foot is raised 1 Set the pressure dial at 3 and lower the presser foot 2 Remove the bed cover See page 5 3 Turn the handwheel toward you to set the feed dog at the highest pos...

Страница 19: ...e setscrew F 2 Turning the handwheel toward you slowly by hand move the hook setplate up or down to adjust the clearance between the test pin C and the point of the hook to 0 10 to 0 05 mm Repeat the...

Страница 20: ...n 4 Loosen the setscrews on the lower shaft timing gear 5 Raise the needle bar between 3 25 3 55 mm from the lowest position of the needle bar 6 Turn the lower shaft timing gear until the tip of hook...

Страница 21: ...width 4 Turn the handwheel toward you until the tip of hook meets the right side of the needle 5 Loosen the setscrew C 6 Adjust the height of the needle bar by moving the needle bar upward or downwar...

Страница 22: ...ounter clockwise by hand and check the play It should be within 0 8 mm If there is more than 0 8 mm backlash between the gears adjust as follows ADJUSTMENT PROCEDURE 1 Remove the bed cover See page 5...

Страница 23: ...e 4 The correct buttonhole stitch balance is when there is the same coarse on the right and left sides of buttonhole ADJUSTMENT PROCEDURE 1 Remove the bed cover See page 5 2 Loosen hexagonal socket sc...

Страница 24: ...d not move when you turn the stitch width dial at 0 ADJUSTMENT PROCEDURE 1 Remove the top cover See page 4 2 Turn the handwheel toward you until the needle comes to the center of the slit in the needl...

Страница 25: ...the handwheel toward you 4 The machine should not feed a piece of paper at this setting ADJUSTMENT PROCEDURE 1 Remove the belt cover See page 6 2 Set the stitch selector at and the stitch length dial...

Страница 26: ...O REMOVE 1 Push down the needle threader knob and pull the needle threader plate A down to remove it FIG 1 2 To install the needle threader plate line the groove up with the pin B and push it up to sn...

Страница 27: ...buttonhole foot will be 3 mm longer than the actual button The length can be adjusted as follows ADJUSTMENT PROCEDURE 1 Lower the feed dog and attach foot R Then lower the presser bar 2 Loosen the set...

Страница 28: ...oo early or if no bartack is sewn at all adjust as follows 1 Remove the belt cover See page 23 2 Loosen the setscrew 3 Make adjustment so the plate 2 touches the arm lightly with plate 1 pushed in the...

Страница 29: ...correct motor belt tension is achieved when the belt pushes in about 7 mm 9 mm under a pressure of about 300 grams ADJUSTMENT PROCEDURE 1 Remove the belt cover See page 6 2 Loosen setscrews A and B 3...

Страница 30: ...et and the connector Remove the connector from the lamp 3 Remove the setscrew A 3pcs to remove the cover 4 Remove the setscrew C 2pcs to remove the transformer TO ATTACH Follow the procedure above in...

Страница 31: ...G OF TERMINAL BLOCK Trancefomer Motor 1 Remove the rear cover See page 8 2 Remove the screws A B and machine socket cover 3 Follow the above procedure in reverse A A Machine socket unit B Machine sock...

Страница 32: ...utine oiling However whenever the machine is being serviced check to see if any parts needs to be lubricated OIL Use good quality sewing machine oil at the points A B C D E F G indicated by the black...

Страница 33: ...PARTS LIST...

Страница 34: ...32 MODEL HD718 PARTS LIST 1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 20 21 22 23 24 25 19 26 3 15 22 22...

Страница 35: ...009 659034003 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 Top cover unit Top cover Thread guide Pre tension spring Setscrew 2x2 3 Setscrew 3x6 B Thread guide plate unit Adjust...

Страница 36: ...34 MODEL HD718 PARTS LIST 1 2 9 10 4 11 7 12 16 13 8 8 6 13 14 15 17 8 18 19 19 19 20 21 22 23 23 23 24 25 26 27 28 13 29 30 4 5 6 3...

Страница 37: ...9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Front cover unit Front cover Thread guide Stitch length adjusting dial Zigzag width adjusting slider Setscrew 2 3x5 B Cover plate Sets...

Страница 38: ...36 MODEL HD718 PARTS LIST 46 1 2 3 4 4 5 6 7 8 9 9 15 19 18 20 21 10 11 12 38 37 29 30 31 32 33 34 35 36 43 42 41 41 45 39 40 44 13 22 23 24 17 16 14 25 26 28 27...

Страница 39: ...46 Face cover unit Face cover Face cover spring Setscrew 3x10 B Thread cutter unit Face cover hinge unit Setscrew 4x6 Presser bar base plate Setscrew 4x8 Presser foot lifter Thread tension release le...

Страница 40: ...38 MODEL HD718 PARTS LIST 1 2 3 15 16 13 14 17 4 8 3 24 25 26 27 28 29 30 31 9 10 19 5 6 7 12 11 18 23 20 22 21...

Страница 41: ...r supporter unit Needle bar supporter Hexagonal socket screw 4x4 Needle bar unit Threader positioning set plate unit Threader positioning set plate Hexagonal socket screw 3x4 Needle bar connecting stu...

Страница 42: ...40 MODEL HD718 PARTS LIST 1 2 3 4 5 6 7 8 9 10 11 12 16 9 13 14 15 18 17 20 24 23 21 23 22 19...

Страница 43: ...04 652137006 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Front base plate unit Front base plate Pulling bar link Snap ring E 3 BH lever unit BH lever BH lever supporter plate Fricti...

Страница 44: ...42 MODEL HD718 PARTS LIST 1 4 2 5 3 6 8 9 20 19 18 17 15 13 12 11 10 16 21 4 7 5 11 14...

Страница 45: ...8005 000023803 653139012 639097024 639113016 000081005 650070509 820511108 650062003 000002806 Upper shaft unit Upper shaft Worm Hexagonal socket screw 4x4 Felt Hexagonal socket screw 5x5 Timing belt...

Страница 46: ...44 MODEL HD718 PARTS LIST 1 2 3 4 5 5 6 6 7 8 9 11 10 14 13 13 12 15 16 20 17 18 19 21 22 24 13 25 26 15 31 28 27 29 30 13 13 34 38 40 36 37 39 35 32 23 6 33 6...

Страница 47: ...26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Feed rock shaft unit Feed dog Setscrew 3 5x8 Feed base spring Straight pin Hexagonal socket screw 5x5 Feed regulator unit Ring Setscrew 4x8 Feed regulator...

Страница 48: ...46 MODEL HD718 PARTS LIST 1 2 3 6 4 5 7 14 10 9 12 37 38 39 12 28 29 30 11 8 13 15 21 25 26 23 22 24 20 18 27 16 17 31 17 17 19 32 40 41 42 43 34 35 33 36...

Страница 49: ...21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Hook race unit Hook body unit Hook body gear unit Hook body bottom plate Setscrew 2x2 3 Magnet Hook bottom plate Setscrew 2x2 3 Hoo...

Страница 50: ...48 MODEL HD718 PARTS LIST 1 2 7 8 9 10 13 11 10 12 14 15 16 17 18 19 20 2 20 21 22 23 24 25 26 27 28 20 4 5 2 6 2 3...

Страница 51: ...11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Zigzag width rod front Snap ring E 3 Zigzag arm unit Setscrew 4x8 Zigzag width rod Zigzag width adjusting rod Reverse lever unit Reverse lever 1...

Страница 52: ...50 MODEL HD718 PARTS LIST 6 26 30 8 7 36 37 26 31 32 35 33 34 34 1 2 3 4 5 9 21 22 10 13 20 12 11 21 16 17 14 15 18 19 5 29 23 26 25 27 28 24...

Страница 53: ...16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 Idler unit Idler base Idler Snap ring E 6 Setscrew 4x8 Belt cover Setscrew TP 4x8 Setscrew 4x25 Machine socket whole unit Motor unit...

Страница 54: ...52 MODEL HD718 PARTS LIST 1 2 3 4 5 8 17 12 14 6 10 11 13 15 20 16 9 7 19 18...

Страница 55: ...29801002 820809014 540401026 C 2037 1 755800423 479701406 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Accessory set Bobbin Seam ripper unit Small spool pin Additional spool pin Screwdriver key...

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