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                         KEY                  PARTS
                          NO.                  NO. 

 DESCRIPTION

41

PARTS LIST

MODEL: NH22

743612005
743025005
014170108
000115504
739505403
739037007
000103509
000107802
000060802

Motor assy 
Motor bracket
Motor 
Setscrew TP5x10
Machine socket unit
Machine socket cover
Setscrew 4x10
Setscrew 3x10(B)
Nut

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Содержание NH22

Страница 1: ...1 SERVICE MANUAL PARTS LIST MODEL NH22...

Страница 2: ...RESSER BAR HEIGHT AND ALIGNMENT 12 NEEDLE SWING 13 NEEDLE DROP POSITION 14 CLEARANCE BETWEEN NEEDLE AND SHUTTLE 15 16 FEED DOG HEIGHT 17 NEEDLE BAR HEIGHT 18 NEEDLE TIMING TO SHUTTLE 19 BUTTONHOLE FEE...

Страница 3: ...ATE NEEDLE SEE MECHANICAL P 16 BAR HEIGHT ADJUSTMENT NEEDLE BAR HEIGHT 7 INAPPROPRIATE NEEDLE SEE MECHANICAL P 17 TO HOOK TIMING ADJUSTMENT NEEDLE TIMING TO SHUTTLE 8 INAPPROPRIATE NEEDLE SEE MECHANIC...

Страница 4: ...O MUCH THREAD IS ADJUST THE POSITION OF WOUND ON THE BOBBIN STOPPER 3 LINT IS STUCK INSIDE THE CLEAN THE HOOK RACE HOOK RACE 4 THREAD QUALITY IS CHANGE TO A HIGH QUALITY TOO LOW SEWING THREAD 5 THREAD...

Страница 5: ...IATE BELT SEE MECHANICAL P 22 TENSION ADJUSTMENT MOTOR BELT TENSION 4 UPPER SHAFT GEAR IS LOOSE ELIMINATE THE LOOSENESS 5 NOT ENOUGH OIL OIL ALL MOVING PARTS 7 DEFORMATION 1 INAPPROPRIATE ZIGZAG SEE M...

Страница 6: ...SETSCREW B TO ATTACH 2 FOLLOW THE ABOVE PROCEDURE IN REVERSE TOP COVER TO REMOVE 1 REMOVE THE SETSCREWS C 2 SLIDE THE CORNER OF THE TOP COVER SLIGHTLY IN THE DIRECTION OF ARROW BE CAREFUL THAT THE TH...

Страница 7: ...7 A BASE COVER SERVICE ACCESS BASE COVER TO REMOVE 1 LOOSEN THE SETSCREWS A 2 REMOVE THE BASE PLATE TO ATTACH 3 MOUNT THE BASE PLATE AND SECURE IT WITH SETSCREWS...

Страница 8: ...EW 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 H AND I 5 OPEN THE TOP COVER SEE PAGE 5 LOOSEN THE SETSCREW J 6...

Страница 9: ...5 2 LOOSEN THE SETSCREW A 3 REMOVE THE SETSCREW B REMOVE THE REAR COVER SEE PAGE 6 LOOSEN THE SETSCREW C E AND H REMOVE THE SETSCREW D 4 OPEN THE SHUTTLE COVER REMOVE THE SETSCREW F 5 REMOVE THE BASE...

Страница 10: ...ABOVE LIMIT ADJUST AS FOLLOWS 1 SET THE TENSION DIAL 4 2 REMOVE THE COVER 3 LOWER THE PRESSER FOOT IF THE TOP TENSION IS TOO LOOSE TURN THE LEAD SCREW IN THE DIRECTION A IF THE TOP TENSION IS TOO TIG...

Страница 11: ...RING THE BOBBIN THREAD TENSION 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...

Страница 12: ...E 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 24 3...

Страница 13: ...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 ROT...

Страница 14: ...F 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 4 2 SET THE PATTERN SELECTOR DIAL AT...

Страница 15: ...RANCE 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 ADJU...

Страница 16: ...LEARANCE 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 INNER EDGES OF T...

Страница 17: ...EEDLE PLATE SHOULD BE 0 75 0 90 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 D...

Страница 18: ...CE COVER 2 SET THE PATTERN SELECTOR DIAL AT MODEL NEXT40 PATTERN SELECT DIAL AT WIDTH SELECTOR DIAL AT 0 3 OPEN THE SHUTTLE COVER 4 REMOVE THE SHUTTLE RACE RING 5 TURN THE HANDWHEEL TOWARD YOU UNTIL T...

Страница 19: ...RING 5 TURN THE HANDWHEEL TOWARD 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...

Страница 20: ...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...

Страница 21: ...DIFFERENCE BETWEEN FORWARD FEEDING AND BACKWARD FEEDING DURING STRETCH STITCH PATTERNS MAKE AN ADJUSTMENT AS FOLLOWS ADJUSTMENT PROCEDURE 1 REMOVE THE CAP 2 SET THE PATTERN SELECTOR DIAL AT AND THE ST...

Страница 22: ...ION AND OPEN A 1 6 MM GAP BETWEEN THE SLIDER AND THE BUTTONHOLE FOOT 6 TURN THE ADJUSTING SCREW TO THE LEFT UNTIL THE LCD DISPLAY BH SYMBOL 7 NEXT TURN THE ADJUSTING SCREW TO THE RIGHT UNTIL THE BH SY...

Страница 23: ...RN 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 THE PATTERN SELECTO...

Страница 24: ...ELT JUMPING 2 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 1 REMOVE THE FRONT AND REAR COVER SEE PAG...

Страница 25: ...25 WIRING 1 WIRING FOR MACHINE SOCKET UNIT 2 WIRING DIAGRAM M L M MOTOR L LAMP FOOT CONTROL MACHINE SOCKET LAMP SOCKET MOTOR M L 120V 240V...

Страница 26: ...26 MODEL NH22 PARTS LIST 1 2 27 29 3 5 25 49 8 41 42 43 44 45 13 14 31 34 35 26 4 24 16 4 46 47 8 7 40 37 40 38 39 19 15 28 30 33 18 17 7 7 32 10 8 6 9 11 22 23 5 5 5 32 36 21 12 48 20...

Страница 27: ...6 735616200 735002001 000097901 000061319 739064003 310615808 310054401 310055701 310050005 Rear cover unit Rear cover Cover fixing plate Tapping screw 3x8 B Setscrew TP4x6 Setscrew 4x10 B Cap Setscre...

Страница 28: ...28 MODEL NH22 PARTS LIST 29 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 18 19 20 21 22 17 23 26 24 25 28 30 31 32 33 34 35 36 37 38 17 39 42 41 40 27...

Страница 29: ...r supporter stopper Washer Bolt 4x8 Presser bar Presser bar spring Presser bar bracket Hexagonal socket screw 4x8 Presser foot lifter Snap ring E 5 Tension release lever Snap ring CS 5 BH regulating l...

Страница 30: ...30 MODEL NH22 PARTS LIST 1 2 3 4 7 4 5 6 8 30 13 11 12 13 23 24 20 19 18 14 15 16 17 21 22 26 25 27 14 28 29 31 30 32 34 35 36 37 10 9 33...

Страница 31: ...ader plate unit Needle bar connecting stud unit Needle threader set plate unit Needle threader set plate Needle threader base Flat screw 2x4 Needle bar unit Needle ha1 14 Hexagonal socket screw 5x5 Th...

Страница 32: ...32 MODEL NH22 PARTS LIST 1 2 9 4 5 6 7 8 7 10 11 12 13 14 15 16 17 23 19 22 23 24 25 26 27 20 28 29 3 18 21 30 31...

Страница 33: ...009 310069007 Upper shaft unit Setscrew Hexagonal socket screw 4x4 Thrust washer Upper shaft front bushing Ring Hexagonal socket screw 5x5 Worm Setscrew Felt Crank rod unit Feed cam Crank rod Crank ca...

Страница 34: ...34 MODEL NH22 PARTS LIST 9 10 11 12 6 6 6 13 8 8 30 28 17 18 26 19 19 20 21 24 23 22 29 28 25 3 4 1 5 2 7 6 8 15 14 27 28 16...

Страница 35: ...inder support plate unit Bobbin winder support plate Clutch opener plate Setscrew 3x8 B Bobbin winder arm unit Snap ring E 5 Bobbin winder arm spring Setscrew 4x8 Zigzag mechanism unit Index spring Se...

Страница 36: ...36 MODEL NH22 PARTS LIST 1 2 3 4 4 5 6 7 8 9 10 11 12 13 14 8 4 15 16 17 8 8 18 19...

Страница 37: ...00001609 000172602 735610101 532096007 647515006 102261000 Needle plate Setscrew Lower shaft gear unit Hexagonal socket screw 5x5WP Washer 8 0 5 Bushing Feed lifting cam Hexagonal socket screw 5x5 Low...

Страница 38: ...38 MODEL NH22 PARTS LIST 1 2 3 4 5 6 7 8 6 9 10 10 11 11 12 12 22 23 24 25 26 27 6 13 14 15 16 6 17 18 19 20 21...

Страница 39: ...shaft unit Feed rock shaft Feed bar Feed bar shaft Snap ring E 4 Hexagonal socket screw 4x4 Feed dog Setscrew Feed bar spring Feed rock shaft center Feed rock shaft center plate Setscrew 4x6 Feed lift...

Страница 40: ...40 MODEL NH22 PARTS LIST 4 9 7 6 8 5 2 1 3...

Страница 41: ...MODEL NH22 743612005 743025005 014170108 000115504 739505403 739037007 000103509 000107802 000060802 Motor assy Motor bracket Motor Setscrew TP5x10 Machine socket unit Machine socket cover Setscrew 4...

Страница 42: ...42 MODEL NH22 PARTS LIST 7 8 1 4 3 2 5 6 9 10 11...

Страница 43: ...11 310870010 102261000 647808009 639804000 740801004 735801008 647803004 611406002 611411000 C 1028 310800259 Accessory set Bobbin Seam ripper unit Needle set unit Buttonhole foot Darning plate Screwd...

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