SERVICE MANUAL AND PARTSLIST - Masini de cusut casnice
Contents
1. Model NEXT 30 amp 40 PARTS LIST KEY PARTS NO NO DESCRIPTION 1 310602008 Upper shaft unit 2 102073003 Setscrew 3 761052007 Setscrew 4 000036717 Thrust washer 5 732025001 Upper shaft front bushing 6 639095000 Ring 7 000111304 Hexagonal socket screw 5x5 8 749011109 Worm 9 000111201 Hexagonal socket screw 4x4 10 731312005 Felt 11 304609006 Crank rod unit 12 304042005 Feed cam 13 743011008 Crank rod 14 304044007 Crank cam 15 304043006 Crank cam plate 16 000161309 Tapping screw 3x12B 17 000110107 Hexagonal socket screw 5x5 18 732003003 Upper shaft rear bushing 19 000172602 Setscrew 5x8 20 650166008 Motor timing belt 21 000030205 Snap ring E 8 22 303025009 Belt wheel 23 000024206 Spring pin 3x30 24 310619101 Handwheel unit NEXT 30 310619008 Handwheel unit NEXT 40 25 310007100 Handwheel NEXT 30 310007007 Handwheel NEXT 40 26 743030003 Balance weight 27 000121400 Tapping screw 3x14B 28 502065004 Clutch spring 29 502064003 Clutch ring 33 Model NEXT 30 amp 40 PARTS LIST 34 Model NEXT 30 amp 40 PARTS LIST KEY PARTS NO NO DESCRIPTION 1 310601007 Bobbin winder support plate unit 2 310001001 Bobbin winder support plate 3 310003003 Clutch opener plate 4 000120203 Setscrew 3x8 B 5 310501006 Bobbin winder arm unit 6 000001609 Snap ring E 5 7 505071002 Bobbin winder arm spring 8 000081005 Setscrew 4x8 9 310620002 Feed re2. M MOTOR L LAMP 2 WIRING DIAGRAM m FOOT CONTROL MACHINE SOCKET o 0 Z LAMP SOCKET ssa m r olio 23 BLANK PAGE 24 Model NEXT 30 amp 40 PARTSLIST NEXT 30 amp 40 Model NEXT 30 amp 40 PARTS LIST 26 Model NEXT 30 amp 40 PARTS LIST KEY PARTS NO NO DESCRIPTION 1 310613105 Rear cover unit NEXT 30 310613002 Rear cover unit NEXT 40 2 310048103 Rear cover NEXT 30 310048000 Rear cover NEXT 40 3 652302004 Spool pin 4 652205006 Spool pin 5 000120203 Tapping screw 3x8 B 6 000115009 TP screw 3x8 7 735013108 Spool pin cushion 8 730006000 Spring 9 000149312 Setscrew 3x8 B 10 000114710 TP screw 3x6 11 310047009 Bed lid 12 000115205 TP screw 4x6 13 000081005 Setscrew 4x8 14 000028107 Spring pin 4x25 15 745033208 Cap NEXT 30 745033105 Cap NEXT 40 16 310612104 Front cover unit NEXT 30 310612001 Front cover unit NEXT 40 17 310044110 Front cover NEXT 30 310044017 Front cover NEXT 40 18 730501011 Thread guide plate unit 19 000160814 Setscrew 4x18 20 735016307 Bobbin winder stopper 21 000071013 Washer 22 310052203 Stitch guide NEXT 30 310052100 Stitch guide NEXT 40 23 745031000 Thread guard plate 24 310053008 Carrying handle 25 310616108 Extension plate unit NEXT 30 310616005 Extension plate unit NEXT 40 26 310056001 Extension plate 1 27 310057105 Extension plate 2 NEXT 3
3. 18 660106001 Thumb screw 19 739605002 Tension release arm unit 20 739017001 Tension release arm base 21 739018002 Tension release arm 22 739019003 Tension release spring 23 000002105 Snap ring E 3 24 310504102 Tension regulator unit NEXT 30 310504009 Tension regulator unit NEXT 40 25 000103808 Setscrew 3x5 26 639004002 Thread guide 27 000101703 Setscrew 4x12 28 310801009 Foot holder unit 29 301505002 Zigzag foot unit 29 Model NEXT 30 amp 40 PARTS LIST 30 Model NEXT 30 amp 40 PARTS LIST KEY PARTS NO NO DESCRIPTION 1 310065003 Face plate set plate 2 000081005 Setscrew 4x8 3 639017008 Needle bar supporter spring 4 000120203 Setscrew 3x8 5 655681009 Lamp socket unit 6 000009102 Lamp 240V 15W 7 000053709 Cord tie band 8 310605001 Needle bar supporter unit 9 310012005 Needle bar supporter 10 310013006 Needle bar supporter pin 11 000013800 Snap ring CS 6 12 000111304 Hexagonal socket screw 5x5 13 310503008 Needle bar connecting stud unit 14 310606002 Needle bar unit 15 102408089 Needle HA 1 14 16 735119002 Zigzag rod 17 000001609 Snap ring E 5 18 310041003 Eccentricity plate 19 625506109 Thread take up lever unit 20 743664208 Needle bar crank unit 21 731511006 Thread take up pin unit 22 000002806 Snap ring E 6 23 735504008 Needle bar crank pin unit 24 680032100 Needle bar crank rod 25 000078319 Setscrew 3x6 31 Model NEXT 30 amp 40 PARTS LIST
4. SETSCREW AA N 2PCS 2 3 i MECHANICAL ADJUSTMENT NEEDLE DROP POSITION 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 REMOVE THE FACE COVER SEE PAGE 4 SET THE PATTERN SELECTOR DIAL AT MAXIMUM ZIGZAG WIDTH LOOSEN THE SETSCREW TURN THE ECCENTRIC PLATE TO ADJUST THE NEEDLE DROP TIGHTEN THE SETSCREW ATTACH THE FACE COVER NOTE CHECK THE HOOK TIMING AFTER THIS ADJUSTMENT PLATE SETSCREW BOTH CLEARANCES SHOULD BE EQUAL MECHANICAL ADJUSTMENT CLEARANCE BETWEEN NEEDLE AND SHUTTLE ADJUSTMENT METHOD NO 1 TO CHECK THE CLEARANCE BETWEEN THE NEEDLE AND SHUTTLE RACE SHOULD BE 0 05 TO 0 10 MM IF NOT ADJUST AS FOLLOWS ADJUSTMENT PROCEDURE 1 REMOVE THE FACE COVER SEE PAGE 4 2 SET THE PATTERN SELECTOR DIAL AT 3 LOOSEN SCREW A AND MOVE THE NEEDLE BAR SUPPORTER IN THE DIRECTION OF THE ARROWS TO GET A CLEARANCE BETWEEN 0 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 THAT THE CLEARANCE BETWEEN THE NEEDLE AND NEEDLE PLATE IS 0 15 MM OR MORE AS SHOWN IN FIGURE
5. D IF NOT ADJUST THE CLEARANCE BETWEEN NEEDLE AND SHUTTLE RACE BY USING ADJUSTMENT METHOD NO 2 SEE PAGE 14 4 ATTACH THE FACE COVER SCREW A DIRECTION C DIRECTION B NEEDLE BAR SUPPORTER 0 05 TO 0 10 MM WIR e FIGURE D CLEARANCE BETWEEN NEEDLE AND NEEDLE PLATE SHOULD BE 0 15 MM OR MORE MECHANICAL ADJUSTMENT CLEARANCE BETWEEN NEEDLE AND SHUTTLE ADJUSTMENT METHOD NO 2 TO CHECK USE THIS ADJUSTMENT METHOD NO 2 IF THE CLEARANCE CANNOT BE ADJUSTED BY METHOD NO 1 THE CLEARANCE BETWEEN THE NEEDLE AND SHUTTLE RACE SHOULD BE 0 05 TO 0 10 MM ADJUSTMENT PROCEDURE 1 2 3 V SHUTTLE RACE SETSCREWS B 2 LOWER SHAFT BUSHING FRONT LOWER SHAFT SET THE PATTERN SELECTOR DIAL AT ie REMOVE THE REAR COVER SEE PAGE 6 LOOSEN THE SCREW A ON THE LOWER SHAFT BUSHING AND SLIDE THE GEAR ABOUT 0 5 MM TO THE RIGHT TO CREATE SOME BACKLASH BETWEEN THE GEARS LOWER THE NEEDLE AND LOOSEN THE TWO SHUTTLE RACE SETSCREWS B PULL UP OR PUSH DOWN THE SHUTTLE RACE TO ADJUST THE CLEARANCE BETWEEN THE NEEDLE AND THE SHUTTLE RACE IN THE RANGE OF 0 05 TO 0 10 MM SET THE PATTERN SELECTOR DIAL AT TURN THE HANDWHEEL TO CHECK IF THE CLEARANCE BETWEEN THE NEEDLE AND INNER EDGES OF THE SHUTTLE RACE SPRING AT THE LEFT AND RIGHT NEEDLE DROPS ARE EQUAL IF NOT ADJUST BY TURNING THE SHUTTLE RACE UNIT TIGHTEN THE TWO SHUTTLE R
6. FOOT D AND THE NEEDLE PLATE E SHOULD BE 6 0 MM 0 24 ADJUSTMENT PROCEDURE 1 REMOVE THE FACE COVER SEE PAGE 7 2 REMOVE THE SETSCREWS 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 0 247 3 TIGHTEN THE SCREW C SECURELY TIGHTEN THE SETSCREW TO SECURE THE LAMP SOCKET 5 ATTACH THE FACE COVER NOTE WHEN YOU TIGHTEN THE SCREW MAKE SURE THAT BOTH SIDES OF THE PRESSER FOOT ARE PARALLEL TO THE FEED DOG SLOTS F IN THE NEEDLE PLATE E 6 0 MM 10 MECHANICAL ADJUSTMENT NEEDLE SWING TO CHECK ADJUST THE NEEDLE SWING ACCORDING TO THE FOLLOWING PROCEDURE IF THE NEEDLE BAR STARTS MOVING SIDEWAYS WHILE THE NEEDLE IS IN THE FABRIC AT SEWING THE ZIGZAG PATTERN WITH MAXIMUM ZIGZAG WIDTH ADJUSTMENT PROCEDURE 1 SET THE PATTERN SELECTOR DIAL WITH MAXIMUM ZIGZAG WIDTH AND REMOVE THE T TOP COVER SEE PAGE 4 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 NEEDLE PLATE AFTER THE NEEDLE HAS COME OUT OF THE RIGHT SIDE OF THE NEEDLE HOLE 4 TIGHTEN TWO SETSCREWS 5 MOUNT THE FRONT COVER NOTE AFTER ADJUSTING THE NEEDLE SWING CHECK THAT THE UPPER SHAFT WORM AND GEAR ROTATE SMOOTHLY WITHOUT ANY BACKLASH BETWEEN THEM GEAR UPPER SHAFT WORM E
7. PROCEDURE 1 REMOVE THE CAP 2 SET THE PATTERN SELECTOR DIAL 44 AND THE STITCH LENGTH DIAL S S 3 TURN THE STRETCH STITCH ADJUSTING SCREW IN THE DIRECTION OF C WHEN A gt B OR IN THE DIRECTION OF D WHEN A lt B 4 MOUNT THE CAP C D 2 7 A 1 A 7 len a 4 T Ch B A 2 B KACZE A or STRECH STITCH lt A ADJUSTING SCREW x x A B A gt B A lt B MECHANICAL ADJUSTMENT BARTACK FEED OF BUTTONHOLE TO CHECK IF THE MATERIAL IS FEED FORWARD OR BACKWARD WHEN SEWING BARTACK ON BUTTONHOLE MAKE AN ADJUSTMENT AS FOLLOWS ADJUSTMENT PROCEDURE 1 SET THE PATTERN SELECTOR DIAL AT AND THE STITCH LENGTH DIAL AT 4 2 REMOVE THE TOP COVER SEE PAGE 4 3 PLACE A PIECE OF PAPER UNDER THE FOOT AND TURN THE HANDWHEEL IF THE PAPER IS FEED FORWARD TURN THE ADJUSTING SCREW IN THE DIRECTION OF C IF THE PAPER IS FEED BACKWARD TURN THE ADJUSTING SCREW IN THE DIRECTION OF D 4 ATTACH THE TOP COVER D ADJUSTING SCREW FORWARD FEEDING BACKWARD FEEDING STITCH LENGTH DIAL 20 MECHANICAL ADJUSTMENT DISENGAGEMENT OF CAM FOLLOWER TO CHECK IF THE CLEARANCE BETWEEN THE CAM FOLLOWER AND THE TOP CONVEX OF THE ZIGZAG CAM IS NOT ENOUGH THE PATTERN SELECTOR DIAL IS BLOCKED OR WILL NOT SELECT THE CORRECT PATTERN ADJUSTMENT PROCEDURE 1 2 3 REMOVE THE FRONT COVER SEE PAGE 7 SET THE PATTERN
8. 0 310057002 Extension plate 2 NEXT 40 28 310615107 Face cover unit NEXT 30 310615004 Face cover unit NEXT 40 29 310054009 Face cover 30 000061319 Nut 31 310055103 Face cover plaque NEXT 30 310055000 Face cover plaque NEXT 40 32 310050005 Bottom cover 33 735616200 Rubber base unit 34 735002001 Rubber base 35 000097901 Flat screw 5x18 36 310614106 Top cover unit NEXT 30 310614003 Top cover unit NEXT 40 37 310051006 Top cover 38 000103510 Setscrew 4x10 39 739064003 Bed rubber base 40 000080912 Setscrew 4x25 41 310049001 Cover fixing plate 42 000107307 Tapping screw 3x8 B 43 310045100 R button NEXT 30 310045007 R button NEXT 40 44 310046008 R button spring 45 000198316 Setscrew 4x10 46 810220003 Setscrew 27 Model NEXT 30 amp 40 PARTS LIST 19 24 28 Model NEXT 30 amp 40 PARTS LIST KEY PARTS NO NO DESCRIPTION 1 310603009 Presser bar base plate unit 2 735221008 Presser bar base plate 3 310009009 Needle position set plate 4 000101404 Setscrew 4x6 5 000115205 TP screw 4x6 6 000138307 Bolt 4x8 7 735026001 Presser bar 8 735027002 Presser bar spring 9 735028003 Presser bar bracket 10 000111500 Hexagonal socket screw 4x8 11 735029004 Presser foot lifter 12 000001609 Snap ring E 5 13 735030008 Tension release lever 14 000013903 Snap ring CS 5 15 000081005 Setscrew 4x8 16 000070506 Washer 17 310621003 Presser foot unit
9. 9 3 5 MM ADJUSTMENT PROCEDURE 1 2 TIP OF SHUTTLE HOOK MEETS LEFT SIDE OF NEEDLE CA OPEN THE FACE COVER SET THE PATTERN SELECTOR DIAL MODEL NEXT40 PATTERN SELECT DIAL AT gt WIDTH SELECTOR DIAL AT 0 OPEN THE SHUTTLE COVER REMOVE THE SHUTTLE RACE RING TURN THE HANDWHEEL TOWARD YOU UNTIL THE TIP OF THE SHUTTLE HOOK MEETS THE LEFT SIDE OF THE NEEDLE LOOSEN THE LOWER SHAFT CRANK ARM SCREW A ADJUST THE HEIGHT OF THE NEEDLE BAR BY MOVING THE NEEDLE BAR UPWARD OR DOWNWARD WITHOUT TURNING IT TIGHTEN THE SCREW A ATTACH THE SHUTTLE RACE RING 2 9 3 5 MM SCREW A gt NEEDLE BAR 16 MECHANICAL ADJUSTMENT NEEDLE TIMING TO SHUTTLE TO CHECK THE HEIGHT OF THE NEEDLE POINT FROM ITS LOWEST POINT OF TRAVEL SHOULD BE IN THE RANGE OF 1 45 1 95 MM WHEN THE TIP OF THE SHUTTLE HOOK JUST MEETS THE LEFT SIDE OF THE NEEDLE AT THE LEFT NEEDLE POSITION ADJUSTMENT PROCEDURE 1 ROD o 10 11 SET THE PATTERN SELECTOR DIAL AT FOR MODEL NEXT 40 SELECT DIAL AT ci WIDTH SELECTOR DIAL AT 0 REMOVE THE BASE SEE PAGE 5 OPEN THE SHUTTLE COVER REMOVE THE SHUTTLE RACE RING TURN THE HANDWHEEL TOWARD YOU UNTIL THE TIP OF THE SHUTTLE HOOK MEETS THE LEFT SIDE OF THE NEEDLE LOOSEN THE LOWER SHAFT CRANK ARM SCREWS A WHILE HOLDING THE SHUTTLE HOOK SO IT DOESN T TURN TURN THE HANDWHEEL TOWARD YOU UNTIL THE NEEDLE COMES TO
10. ACE SETSCREWS B SLIDE THE GEAR BACK TO THE ORIGINAL POSITION WHILE ADJUSTING THE BACKLASH TIGHTEN SCREW A FIRMLY ATTACH THE REAR COVER NOTE THE ROTARY PLAY OF THE TIP OF THE SHUTTLE DRIVER SHOULD BE 0 3 MM OR LESS AND THE LOWER SHAFT SHOULD TURN SMOOTHLY AFTER THE ADJUSTMENT CHECK THE HOOK TIMING SETSCREW A 0 05 TO 0 10 MM La CLEARANCE SHOULD BE EQUAL BOSS 1 NEEDLE U SHUTTLE RACE SPRING MECHANICAL ADJUSTMENT FEED DOG HEIGHT TO CHECK 1 2 LOWER THE PRESSER FOOT TURN THE HANDWHEEL TOWARD YOU UNTIL THE NEEDLE BAR COMES TO THE FEED DOG ABOVE THE NEEDLE PLATE SHOULD BE 0 75 0 90 MM IF IT IS NOT IN THE RANGE ADJUST AS FOLLOWS ADJUSTMENT PROCEDURE 1 2 R OPEN THE SHUTTLE COVER LOWER THE PRESSER FOOT AND TURN THE HANDWHEEL TOWARD YOU UNTIL THE FEED DOG COMES TO ITS HIGHEST POINT LOOSEN THE SCREW TURN THE FEED LIFTING PIN TO ADJUST THE HEIGHT OF FEED DOG 0 75 0 90 MM TIGHTEN THE SCREW A TURN THE HANDWHEEL TOWARD YOU TO RECHECK THE HEIGHT OF FEED DOG NEEDLE PLATE e SCREW A FEED LIFTING PIN MECHANICAL ADJUSTMENT NEEDLE BAR HEIGHT TO CHECK WHEN THE TIP OF SHUTTLE HOOK MEETS THE LEFT SIDE OF THE NEEDLE IN ASCENDING TRAVEL OF THE NEEDLE FROM ITS LEFT AND LOWEST POSITION THE DISTANCE BETWEEN THE TOP OF THE NEEDLE EYE AND THE TIP OF THE SHUTTLE HOOK SHOULD BE IN THE RANGE OF 2
11. ADJUSTMENT NEEDLE TIMING TO SHUTTLE INAPPROPRIATE NEEDLE SEE MECHANICAL P 13 14 TO SHUTTLE CLEARANCE ADJUSTMENT CLEARANCE BETWEEN NEEDLE AND SHUTTLE 2 FABRIC NOT INCORRECT SEE MECHANICAL P 15 MOVING FEED DOG HEIGHT ADJUSTMENT FEED DOG THREAD ON BOTTOM SIDE OF FABRIC IS JAMMED UP FEED DOG TEETH ARE WORN HEIGHT MAKE SURE TO BRING BOTH NEEDLE AND BOBBIN THREADS UNDER THE FOOT WHEN START SEWING CHANGE THE FEED DOG CONDITION CAUSE HOW TO FIX REFERENCE 3 BREAKING INITIAL SEWING SPEED IS START WITH MEDIUM SPEED UPPER TOO FAST THREAD THREAD PATH IS USE THE PROPER THREAD INCORRECT PATH NEEDLE IS BENT OR DULL REPLACE WITH A NEW NEEDLE UPPER THREAD TENSION IS ADJUST UPPER THREAD P 8 TOO STRONG TENSION CORRECTLY NEEDLE SIZE IS USE APPROPRIATE NEEDLE INAPPROPRIATE FOR AND THREAD FOR FABRIC FABRIC IN USE NEEDLE EYE IS WORN CHANGE THE NEEDLE NEEDLE HOLE IN NEEDLE REPAIR THE HOLE OR PLATE IS WORN OR BURRED REPLACE THE NEEDLE PLATE 4 BREAKING INCORRECTLY THREADED THREAD BOBBIN CASE BOBBIN BOBBIN CASE CORRECTLY THREAD TOO MUCH THREAD IS ADJUST THE POSITION OF WOUND ON THE BOBBIN STOPPER LINT IS STUCK INSIDE THE CLEAN THE HOOK RACE HOOK RACE THREAD QUALITY IS CHANGE TO A HIGH QUALITY TOO LOW SEWING THREAD THREAD IS JAMMING CLEAR OUT THE JAMMING AROUND THE BOBBIN THREAD BOBBIN THREAD TENSION IS ADJUST BOBBIN T
12. EMOVE THE FACE COVER BY REMOVING THE CAP A AND SETSCREW TO ATTACH 2 FOLLOW THE ABOVE PROCEDURE IN REVERSE TOP COVER e SETSCREW C DN THREAD GUIDE _ TO REMOVE 1 REMOVE THE SETSCREWS 2 SLIDE THE CORNER OF THE TOP COVER SLIGHTLY IN THE DIRECTION OF ARROW BE CAREFUL THAT THE THREAD GUIDE SHOULD NOT INTERFEAR WITH THE TOP COVER WHEN REMOVING 3 TAKE THE TOP COVER OUT TO ATTACH 4 FOLLOW THE ABOVE PROCEDURE IN REVERSE SERVICE ACCESS BASE COVER BASE COVER TO REMOVE 1 2 LOOSEN THE SETSCREWS REMOVE THE BASE PLATE TO ATTACH 3 MOUNT THE BASE PLATE AND SECURE IT WITH SETSCREWS SERVICE ACCESS REAR COVER 7 TO REMOVE 1 REMOVE THE FACE COVER AND SETSCREW A SEE PAGE 4 2 OPEN THE SHUTTLE COVER AND REMOVE THE SETSCREWS B C AND D 3 REMOVE THE CAPS AND SETSCREWS E F G 4 REMOVE THE SETSCREWS AND 1 5 OPEN THE TOP COVER SEE 5 LOOSEN THE SETSCREW J 6 REMOVE THE REAR COVER TO ATTACH 7 MOUNT THE REAR COVER IN REVERSE PROCEDURE OF THE REMOVING SERVICE ACCESS FRONT COVER TO REMOVE 1 REMOVE THE FACE COVER AND TOP COVER SEE PAGE 4 AND 5 2 LOOSEN THE SETSCREW A 3 REMOVE THE SETSCREW B REMOVE THE REAR COVER SEE PAGE 6 LOOSEN THE SETSCREW E AND H REMOVE THE SETSCREW D 4 OPEN THE SHUTTLE COVER
13. HREAD P 9 TOO STRONG TENSION CORRECTLY 5 NEEDLE NEEDLE IS HITTING THE SEE MECHANICAL P 12 BREAKS NEEDLE PLATE ADJUSTMENT NEEDLE DROP NEEDLE IS BENT OR WORN CHANGE THE NEEDLE NEEDLE IS HITTING THE SEE MECHANICAL P 13 14 SHUTTLE RACE ADJUSTMENT CLEARANCE BETWEEN NEEDLE AND SHUTTLE THE FABRIC MOVES WHILE SEE MECHANICAL P 11 THE NEEDLE IS PIERCING IT OR THE NEEDLE ZIGZAGS WHILE IN FABRIC FABRIC IS BEING PULLED TOO STRONGLY WHILE SEWING ADJUSTMENT NEEDLE SWING GUIDE THE FABRIC GENTLY WHILE SEWING CONDITION CAUSE HOW TO FIX REFERENCE 6 NOISY BACKLASH BETWEEN SEE MECHANICAL P 14 OPERATION SHUTTLE HOOK GEAR AND ADJUSTMENT CLEARANCE LOWER SHAFT GEAR IS TOO BETWEEN NEEDLE AND GREAT SHUTTLE NO 2 LOWER SHAFT GEAR IS ELIMINATE THE LOOSENESS LOOSE INAPPROPRIATE BELT SEE MECHANICAL P 22 TENSION ADJUSTMENT MOTOR BELT TENSION UPPER SHAFT GEAR IS LOOSE ELIMINATE THE LOOSENESS NOT ENOUGH OIL OIL ALL MOVING PARTS 7 DEFORMATION 1 INAPPROPRIATE ZIGZAG SEE MECHANICAL P 11 PATTERN SYNCHRONIZATION ADJUSTMENT NEEDLE SWING INAPPROPRIATE SEE MECHANICAL P 21 DISENGAGEMENT OF CAM ADJUSTM FOLLOWER DISENGAGEMENT OF CAM FOLLOWER UPPER THREAD TENSION ADJUST UPPER THREAD P 8 IS TOO STRONG TENSION CORRECTLY SERVICE ACCESS FACE COVER a FACE COVER SETSCREW B nn REMOVE 1 R
14. ITS LOWEST POSITION THEN FURTHER TURN THE HANDWHEEL TO RAISE THE NEEDLE ABOUT 1 7 MM FROM ITS LOWEST POSITION TIGHTEN THE SCREWS A TURN THE HANDWHEEL TOWARD YOU TO CHECK IF THE HEIGHT IS IN THE RANGE OF 1 45 1 95 MM IF IT IS NOT IN THIS RANGE REPEAT THE ABOVE PROCEDURE ATTACH THE SHUTTLE RACE RING ATTACH THE BASE LOWER SHAFT CRANK ARM LOWER SHAFT 1 45 1 95 MM LOWEST POSITION SCREWS A 2 MECHANICAL ADJUSTMENT BUTTONHOLE FEED BALANCE TO CHECK WHEN SEWING BUTTONHOLE THE STITCHES ON EACH SIDE OF BUTTONHOLE SHOULD BE THE SAME STITCH DENSITY THE RANGE OF 9 12 STITCHES IN THE RIGHT SIDE ROW BACKWARD FEEDING 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 ADJUSTING SCREW IN THE DIRECTION OF C IN CASE OF A RIGHT STITCHES ARE COARSE OR IN THE DIRECTION OF D IN CASE OF B LEFT STITCHES ARE COARSE 4 MOUNT THE CAP FORWARD FEEDING BACKWARD FEEDING O gt lt e 18 MECHANICAL ADJUSTMENT DISTORTED PATTERN MODEL NEXT 40 30 ONLY TO CHECK IF THE STRETCH STITCH PATTERNS ARE DISTORTED WITH SETTING THE STITCH LENGTH DIAL AT S S INCASE OF BEING A DIFFERENCE BETWEEN FORWARD FEEDING AND BACKWARD FEEDING DURING STRETCH STITCH PATTERNS MAKE AN ADJUSTMENT AS FOLLOWS ADJUSTMENT
15. REMOVE THE SETSCREW P 5 REMOVE THE BASE COVER AND THE SETSCREW G SEE PAGE 5 TO ATTACH 6 MOUNT THE FRONT COVER IN REVERSE PROCEDURE OF THE REMOVING MECHANICAL ADJUSTMENT NEEDLE THREAD TENSION TO CHECK THE STANDARD UPPER THREAD TENSION SHOULD BE 65 95 g WHEN PULLING THE THREAD COTTON THREAD 50 IN THE DIRECTION OF B WITH SETTING THE TENSION 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 SEE PAGE 7 2 TURN THE ADJUSTING NUT IN THE DIRECTION OF D WHEN THE UPPER THREAD TENSION IS TOO TIGHT TURN THE ADJUSTING NUT IN THE DIRECTION OF E WHEN THE UPPER THREAD TENSION IS TOO LOOSE 3 ATTACH THE FRONT COVER UNIT MECHANICAL ADJUSTMENT BOBBIN TENSION TO CHECK SET THE BOBBIN IN THE BOBBIN CASE AND PASS THE THREAD COTTON 50 THROUGH THE TENSION SPRING THE BOBBIN THREAD TENSION SHOULD BE 45 559 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 THREAD TENSION IS TOO TIGHT 2 TURN THE ADJUSTING SCREW C IN THE DIRECTION OF E WHEN THE BOBBIN THREAD TENSION IS TOO LOOSE MECHANICAL ADJUSTMENT PRESSER BAR HEIGHT AND ALIGNMENT TO CHECK 1 RAISE THE PRESSER FOOT LIFTER A 2 THE DISTANCE BETWEEN THE PRESSER
16. RTS NO NO DESCRIPTION 1 735612000 Feed rock shaft unit 2 735078008 Feed rock shaft 3 735079009 Feed bar 4 735080003 Feed bar shaft 5 000002507 Snap ring E 4 6 000111201 Hexagonal socket screw 4x4 7 735081004 Feed dog 8 735082005 Setscrew 9 735083006 Feed bar spring 10 735084007 Feed rock shaft center 11 735085008 Feed rock shaft center plate 12 000101404 Setscrew 4x6 13 301608006 Feed lifting arm unit 14 301027005 Feed lifting arm 15 735087000 Feed lifting pin 16 735088001 Feed lifting roller 17 735089002 Feed lifting spring 18 735090006 Feed lifting shaft 19 000101703 Setscrew 4x12 20 739022009 Feed lifting shaft holder 21 000081119 Setscrew 4x6 22 743012009 Feed rod 23 743013000 Feed rod spring 24 102141003 Feed regulator slide block 25 735071104 Feed rock shaft connecting pin 26 000002806 Snap ring E 6 27 735276008 Ring 39 Model NEXT 30 amp 40 PARTS LIST 40 Model NEXT 30 amp 40 PARTS LIST KEY PARTS NO NO DESCRIPTION 1 743611303 Motor assy 2 743025005 Motor bracket 3 024070407 Motor 4 000001960 Setscrew 5 000201209 Setscrew 5x12 6 739503308 Machine socket unit 7 739037007 Machine socket cover 8 000103509 Setscrew 4x10 9 000107802 Setscrew 3x10B 10 000060802 Nut 41 Model NEXT 30 amp 40 PARTS LIST 42 Model NEXT 30 amp 40 PARTS LIST KEY PARTS NO NO DESCRIPTION 1 310870009 Accessory set 2 102261000 Bobbin 3 647808009 Seam r
17. SELECTOR DIAL AT PATTERN cD S PUT THE CAM FOLLOWER TO THE ZIGZAG CAM AND PUT THE CAM FOLLOWER RELEASING ARM TO THE PATTERN SELECTOR CAM LOOSEN THE SET SCREW 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 THEN TIGHTEN THE SETSCREW NOTE AFTER THIS ADJUSTMENT CHECK THAT THE CLEARANCE BETWEEN THE ZIGZAG CAM AND THE CAM FOLLOWER IS ABOUT 0 3 MM WHEN SETTING THE CAM FOLLOWER RELEASING ARM ONTO POSITION B OF PATTERN SELECTOR CAM MOUNT THE FRONT COVER NOTE CHECK THE NEEDLE MOVEMENT FOR STRAIGHT STITCH POSITION B POSITION A 21 MECHANICAL ADJUSTMENT MOTOR BELT TENSION TO CHECK 1 IMPROPER BELT TENSION MAY CAUSE NOISE OVERLOAD OF MOTOR SLOW RUNNING OR MOTOR BELT JUMPING THE BELT DEFLECTION SHOULD BE 7 MM 9 MM WHEN PRESSING THE MIDDLE OF THE MOTOR BELT WITH APPROXIMATELY 300 GRAMS OF PRESSURE ADJUSTMENT PROCEDURE 2 3 REMOVE THE FRONT AND REAR COVER SEE PAGE 6 7 LOOSEN THE SCREWS A AND B MOVE THE MOTOR UP OR DOWN TO ADJUST THE DEFLECTION ABOUT 7 MM 9 MM TIGHTEN THE SCREWS A AND B ATTACH THE FRONT AND REAR COVER 300g LOAD DEFLECTION 7 9MM 22 WIRING 1 WIRING FOR MACHINE SOCKET UNIT
18. SERVICE MANUAL AND PARTSLIST Next 40 30 CONTENTS WHAT TO DO WHEN u N ee 1 3 SERVICE ACCESS FACE COVER ati 4 TOP COVER EE 4 BASE COVER net 5 REAR EE 6 FRONT COVER nni een 7 MECHANICAL ADJUSTMENT NEEDLE THREAD TENSION iii 8 BOBBIN TENSION EE 9 PRESSER BAR HEIGHT AND 10 NEEBLE SWING Hesse n 11 NEEDLE DROP POSITION 12 CLEARANCE BETWEEN NEEDLE AND SHUTTLE 13 14 FEED DOG HEIGHT enge 15 NEEDLE BAR HEIGHT E 16 NEEDLE TIMING TO SHUTTLE 17 BUTTONHOLE FEED BALANCE iiieoo en 18 DISTORTED PATTERN MODEL NEXT 40 30 ONLY 18 BARTACK FEED OF BUTTONHOLE 20 DISENGAGEMENT OF CAM FOLLOWER 21 MOTOR BELT TENSI N Sen es 22 WENGER LR A S huy eu 23 PARTSLIST coccion cio rail baaa lernen 25 43 WHAT TO DO WHEN CONDITION CAUSE HOW TO FIX REFERENCE 1 SKIPPING NEEDLE IS NOT INSERTED INSERT THE NEEDLE PROPERLY STITCHES PROPERLY NEEDLE IS BENT OR WORN CHANGE THE NEEDLE INCORRECTLY THREADED RETHREAD NEEDLE OR THREAD ARE USE THE RECOMMENDED INAPPROPRIATE FOR THE SEWING NEEDLE AND THREAD FABRIC BEING SEWN SEWING ON STRETCH USE A 11 BLUE TIP NEEDLE FABRIC INAPPROPRIATE NEEDLE SEE MECHANICAL P 16 BAR HEIGHT ADJUSTMENT NEEDLE BAR HEIGHT INAPPROPRIATE NEEDLE SEE MECHANICAL P 17 TO HOOK TIMING
19. gulator unit 10 000172602 Setscrew 5x8 11 310610009 Zigzag mechanism unit NEXT 30 310609005 Zigzag mechanism unit NEXT 40 12 737011009 Index spring 13 000103808 Setscrew 3x5 14 310043119 Dial NEXT 30 310043108 Dial NEXT 40 15 310043212 Dial NEXT 30 310043201 Dial NEXT 40 16 310043304 Dial NEXT 40 17 735074004 SS adjusting screw 18 735076006 SS rod block 19 000160102 Adjustable lock nut 4 20 648010009 Setscrew 21 739020007 Feed regulating rod 22 735077007 Feed regulating body spring 23 735073003 Plain washer 24 000013800 Snap ring CS 6 25 310058003 Reverse link 26 000071013 Washer 4 27 740125007 Feed regulator spring 28 648012001 Hinge screw 29 000001205 Snap ring E 3 35 PARTS LIST Model NEXT 30 amp 40 Model NEXT 30 amp 40 PARTS LIST KEY PARTS NO NO DESCRIPTION 1 744004001 Needle plate 2 681009101 Setscrew 3 735950003 Lower shaft gear unit 4 000110107 Hexagonal socket screw 5x5WP 5 000036201 Washer 8 0 5 6 735233003 Bushing 7 735061101 Feed lifting cam 8 000111304 Hexagonal socket screw 5x5 9 735236006 Lower shaft 10 822070003 Felt 11 735234004 Bushing 12 639036003 Lower shaft crank arm 13 639037004 Pin 14 000001609 Snap ring E 5 15 735610101 Shuttle race body unit 16 532096007 Shuttle hook 17 647515006 Bobbin case unit 18 102261000 Bobbin 37 Model NEXT 30 amp 40 PARTS LIST 38 Model NEXT 30 amp 40 PARTS LIST KEY PA
20. ipper 4 639804000 Needle set 5 611413002 Slide buttonhole foot 6 735801008 Darning plate 7 647803004 Screwdriver small 8 611406002 Zipper foot 9 611411000 Blind foot 10 042970402 Foot control 11 310800134 Instruction book Sp Po lt Fr Gr 43
Download Pdf Manuals
Related Search