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SERVICE MANUAL

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PARTS LIST

990D

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Содержание 990D

Страница 1: ...SERVICE MANUAL PARTS LIST 990D...

Страница 2: ...TWEEN THE NEEDLES AND THE LOWER LOOPER NEEDLE GUARDS 15 TO ADJUST THE CLEARANCE BETWEEN THE NEEDLES AND THE LOWER LOOPER NEEDLE GUARDS 16 TO ADJUST THE CLEARANCE BETWEEN THE NEEDLES AND THE FIXED NEED...

Страница 3: ...remove the face plate unit To attach 2 Fit the U groove of the face plate between the setscrew A and set plate put the rib of the face plate into the front cover unit and the back cover unit Tighten...

Страница 4: ...w B Rib Rib To remove 1 Loosen the setscrew A and remove the setscrew B 2 Remove the belt cover unit To attach 3 Put the ribs of belt cover into the front cover unit and tighten the setscrew A and B T...

Страница 5: ...Setscrews A Rib To remove 1 Remove the face plate unit and belt cover unit 2 Remove the two setscrews A Remove the top cover To attach 3 Put the ribs of top cover into the front cover unit Tighten se...

Страница 6: ...move 1 Remove the face cover and belt cover unit 2 Turn the handwheel toward you with your hand and set the upper looper at its lowest position and remove the setscrews A B C D E and the front cover u...

Страница 7: ...Setscrews A U grooves To remove 1 Loosen the setscrew A and remove the side cover unit To attach 2 Fit the U grooves of the side cover between the setscrews A and the set plate 3 Tighten the setscrews...

Страница 8: ...crews A B C D and two hinge screws E and remove two base cushions F and washers 2 Remove the machine base NOTE Do not remove another two base cushions To attach 3 Attach the machine base unit and tigh...

Страница 9: ...e the setscrews A and pull out the cord connectors To attach 3 Insert the cord connectors as shown below 4 Attach the machine socket and tighten two setscrews A and attach the belt cover unit TO CHANG...

Страница 10: ...G02 Thickness gauge No 787 G03 Each part indicated by an alphabet of the thickness gauge No 787 G05 is used for the following adjustments A Adjustment of needle bar height B Adjustment of presser bar...

Страница 11: ...on To adjust 1 Remove the face plate unit 2 Turn the handwheel toward you with your hand and set the needle bar at its highest position 3 Loosen the setscrew A to adjust the height and tighten the set...

Страница 12: ...face plate unit Remove the setscrews A and the lamp fixing plate 2 Raise the presser bar lifter and loosen the setscrews B Then adjust the presser bar height the side of presser foot should be parall...

Страница 13: ...dial at 3 and the differential feed dial at 1 0 2 Lower the presser foot and raise the feed dog to its highest position by turning the handwheel 3 Loosen the feed dog screws A 2 pcs 4 Push the feed do...

Страница 14: ...dial at 1 0 3 Raise the presser foot and move the tip of right needle at 2 4 mm above the needle plate in its downward motion by turning the handwheel 4 Lower the presser foot and loose two setscrews...

Страница 15: ...ng is being delay Turn the upper knife drive cam to the direction D when the upper knife timing is being delay Turn the upper knife drive cam to the direciton E when the upper knife timing is too soon...

Страница 16: ...er looper 4 Turn the handwheel to get the lower looper in leftmost position 5 Insert the gauge downwards into the lower looer shaft as shown 6 Loosen setscrew A and move the lower looper up or down to...

Страница 17: ...to the rear side of the right needle 5 Loosen the hexagonal socket screws A on the front needle guard and open a space between the front needle guard and the needle 6 Next loosen the hexagonal bolt B...

Страница 18: ...16 990D TO ADJUST THE CLEARANCE BETWEEN THE NEEDLES AND THE LOWER LOOPER NEEDLE GUARDS...

Страница 19: ...setscrews A and adjust the position of the fixed needle guard 3 Tighten the setscrews A 4 Attach the presser foot TO ADJUST THE CLEARANCE BETWEEN THE NEEDLES AND THE FIXED NEEDLE GUARD The clearance b...

Страница 20: ...needle plate To adjust 1 Remove the presser foot 2 Set the needle plate setting knob to guide line S on chaining finger unit 3 Loosen the setscrews A and move the chaining finger unit to correct posit...

Страница 21: ...be 1 6 mm to 1 8 mm when the upper looper is at the lowest position as shown Fig 1 3 Tighten the hexagonal socket screws A 4 Turn the handwheel and bring the upper looper to the leftmost position 5 L...

Страница 22: ...as shown in Fig a and tighten bolt B There should be no clearance between the gauges and the needle bar lower bushing 5 Remove the plate gauge 787 G03 and then turn the handwheel toward you until the...

Страница 23: ...tment check the lower looper timing and the position of the upper looper 2 Remove the machine base 3 Loosen two setscrews and adjust the timing by turning the upper looper drive cam in the direction o...

Страница 24: ...esser foot and needle plate 2 Turn the handwheel toward you with your hand to bring the loopers as shown in Fig 2 3 Loosen the setscrew A and adjust the clearance by moving the upper looper to the bac...

Страница 25: ...ft side and 0 05 to 0 05 mm at the needle on the right side To adjust 1 Turn the handwheel toward your with your hand to bring the needle just behind the upper looper in downward travel 2 Loosen the s...

Страница 26: ...be 0 8 to 1 5 mm below the edge of lower knife To adjust 1 Before proceeding with this adjustment check the upper knife timing 2 Remove the two setscrews A and adjust the lower knife position 3 Turn...

Страница 27: ...dog Looper Thread Guide Lower Loosen the setscrew C and set so that the bottom side of the looper thread take up lever is in line with the bottom side of the upper looper waving arm Tighten the setscr...

Страница 28: ...differential feed dial at 1 0 2 Remove the front cover unit 3 If the actual stitch length is longer than 3 0 mm turn the adjusting screw in the direction A If the actual stitch length is smaller than...

Страница 29: ...r 3 with stopper and insert the thread tension dial Correct setting for general sewing When each dial is set at 3 and No 50 polyester filament thread is used the thread should be as follows Needle Lef...

Страница 30: ...28 990D PARTS LIST 1 22 2 7 18 3 4 19 15 20 16 11 11 12 13 14 14 5 10 9 14 14 8 6 19 21 21 8 8 17...

Страница 31: ...787394004 787363004 785015002 787392002 000103417 789024006 000115607 724025006 Front cover unit Front cover Sticker Looper thread guide Looper thread guide Looper thread guide Check spring unit Tappi...

Страница 32: ...30 990D PARTS LIST 1 4 3 2 6 5 19 21 23 23 24 23 22 25 26 23 28 29 31 32 35 36 18 27 34 23 38 37 10 9 8 37 33 30 20 8 15 11 12 13 14 16 17 7 21 22...

Страница 33: ...34 35 36 37 38 Spool stand unit Spool stand Spool holder Thread guide bar unit TP screw 4x10 TP screw 4x12 Tapping screw 3x8 B Setscrew 4x8 Side cover hinge base Side cover hinge unit Side cover unit...

Страница 34: ...32 990D PARTS LIST 1 6 7 8 9 12 13 15 13 21 20 23 25 26 27 28 29 31 32 33 34 18 19 13 18 35 5 4 13 11 17 22 24 34 37 36 16 10 39 3 38 30 2 14...

Страница 35: ...788502000 660106001 000115607 000053101 789602004 789005001 789006002 763033204 Face plate unit Face plate Thread cutter unit Sticker Sticker TP screw 4x10 Needle plate unit Eccentric pin H socket sc...

Страница 36: ...34 990D PARTS LIST 34 12 15 16 5 4 13 6 7 9 10 11 12 13 14 35 33 17 8 3 39 42 12 43 37 38 2 36 43 3 39 1 23 21 25 29 31 27 26 30 18 19 20 12 22 24 28 41 21 40 32...

Страница 37: ...106 000078320 789169009 789610049 789034009 785260004 784135006 Nut 4 Lamp socket complete unit Washer Lamp socket set plate Lamp socket unit Motor unit Machine socket unit Washer 2 Machine socket cov...

Страница 38: ...36 990D PARTS LIST 1 36 3 4 2 5 7 8 9 11 13 14 15 26 19 20 21 17 18 24 25 2 27 28 29 30 32 34 35 37 38 39 40 2 2 2 2 2 2 26 2 2 12 16 23 33 6 22 39 10 41 42 31 43 44...

Страница 39: ...5 000002909 789101008 793607068 793012004 000039905 000038502 Needle bar upper bushing H socket screw 4x4 Needle bar lower bushing Needle bar unit Needle bar Spring pin 1 6x8 Needle clamp screw unit N...

Страница 40: ...38 990D PARTS LIST 1 2 3 4 5 33 27 10 11 12 13 14 14 16 17 18 14 13 14 13 19 20 21 22 22 23 24 25 26 22 28 29 30 32 13 15 13 14 14 14 18 17 8 22 9 15 31 7 27 14 6 34 35 36 34...

Страница 41: ...038502 792630001 792631002 Upper looper shaft unit Upper looper shaft Upper looper H socket screw 4x4 U looper thread guide 3 H socket screw 3x6 Upper looper pin unit Upper looper pin String U looper...

Страница 42: ...40 990D PARTS LIST 1 3 4 5 6 7 8 8 9 10 12 13 18 17 19 20 21 22 23 27 26 28 30 31 29 32 33 34 35 36 13 13 37 38 39 40 19 41 42 43 13 2 24 16 13 14 15 11 25...

Страница 43: ...788008001 789009005 787012005 Chaining finger bracket unit Snap ring E 5 Chaining finger set plate Chaining finger Needle plate setting knob Chaining finger spring Setscrew 2 x 4 Setscrew 3 x 6 Fixed...

Страница 44: ...42 990D PARTS LIST 1 14 25 7 13 11 23 12 12 16 17 18 7 7 11 12 11 5 18 6 17 16 22 12 21 24 3 20 2 8 9 4 15 12 6 10 19 12...

Страница 45: ...065003 787066004 787068006 792008004 000068811 000066705 787072003 787073004 788027006 000201405 Feed bar unit Main feed bar Main feed dog bracket Setscrew 3 5 x 10 Main feed bar drive arm Pin H socke...

Страница 46: ...44 990D PARTS LIST 1 2 21 22 3 6 12 14 13 20 7 29 24 28 28 31 25 21 27 5 11 8 30 22 23 10 18 27 27 26 31 27 32 6 4 19 9 17 15 16 16...

Страница 47: ...3 000002105 787259006 788607006 788029008 000111201 788030002 Feed adjuster unit Set plate Feed adjuster arm Set plate Adjustable screw Adjustable nut Washer Snap ring E 5 Differential rod Adjustable...

Страница 48: ...46 990D PARTS LIST 2 3 4 5 1 6 7...

Страница 49: ...Y PARTS NO NO DESCRIPTION 990D 1 2 3 4 5 6 7 Accessory set Screwdriver Large Screwdriver small Tweezwer Needle set Instruction book Foot controller 777870008 784810002 647803004 624801001 784860100 78...

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