SERVICE MANUAL & PARTS LIST 1600P-QC
Contents
1. N Pull out the light bulb 3 from the lamp socket 4 3 Insert a new bulb and push it into the lamp socket gt Attach the face plate Adjustment of the Thread Cutter Mechanism 1 Thread Cutter Blade To replace 1 Remove the needle plate and base 2 Remove the static cutter blade Remove the hinge screw Dand thread cutter balde Attach the new thread cutter balde and secure it with the hinge screw 1 wm Attach the static cutter blade and adjust the position of the static cutter balde and thread cutter blade To adjust Remove the needle plate and base M Lower the needle bar to the lowest position Turn the handwheel toward you while pushing up the link body Sto engage the thread cutter blade and bring it to the end of the stroke wm Loosen the nut Hand move the thread cutter link to the left or right to adjust the position of the thread cutter blade The point of the thread cutter blade should be 2 2 5 mm from the center of the needle drop position 7 gt Tighten the nut 4 Attach the needle plate and base NOTE Check ifthere is apploximately 5 mm distance between the tail of the hook wing and the end point Oof the thread cutter blade when the end point of the thread cutter blade is aligned with the center of thr needle drop position Apploximately 5 m2. Continental Europe 29 767129004 Printed circuit board A case lower 30 767285009 Cord guide 2 31 000053101 Cord binder 35 1600P QC PARTS LIST 36 1600P QC PARTS LIST KEY PARTS NO NO DESCRIPTION 1 767669001 Presser bar lifter unit 2 767026103 Presser bar lifter 3 767303004 Presser foot sensor plate 4 000103808 Setscrew 3x5 5 767027001 Presser bar bracket 6 000111304 Hexagonal socket screw 5x5 767222008 Spring 8 000036201 Washer FT 80 9 767225001 Spring 10 767028002 Presser bar 11 767029003 Presser bar spring 12 767030100 Presser foot pressure indicator 13 767031008 Presser foot pressure adjusting screw 14 767173003 Spacer 15 767172002 Presser foot support spring 16 762505003 Presser foot unit U S A Canada Australia 704511105 Presser foot unit UK Continental Europe 17 763048109 Setscrew 18 767039006 Arm thread guide lower 19 000101404 Setscrew 4x6 20 767041001 Needle bar bushing upper 21 767042002 Felt 22 000111201 Hexagonal socket screw 4x4 23 767091006 Needle bar bushing lower 24 767641030 Needle bar unit 25 767165013 Needle bar 26 767515001 Needle clamp unit 27 767209009 Needle bar thread guide 28 767210003 Setscrew 29 767169006 Needle guard 30 767401047 Needle HLx5 14 31 767502108 Thread tension unit 32 000114710 Setscrew TP 3x6 33 000111108 Hexagonal socket screw 4x6 34 767054007 Arm thread guide 35 000081119 Setscrew 36 767056009 Thread guide 37
3. 11 14 Needle Threader To To 3 remove Remove the face plate Pull the threader 1 out from the threader shaft attach Align the groove 3 of the theader with the pin on the threader shaft Push the threader up until it snaps in place To adjust 1 N If the threader hook thrusts or hits against either left or right edge of the needle eye 2 Loosen the setscrew 3 Move the threader plate 4 to adjust the lateral position of the threader hook If the threader hook thrusts or hits against either top or bottom edge of the needle eye 2 or misses the needle eye Loosen the setscrew Move the threader position setting plate up or down to adjust the vertical position of the threader hook 1 Replacing the Electronic Components 1 Location of the Electronic Components Slide volume Bobbin winder motor Bobbin winder switch Circuit board F Circuit board A Upper shaft sensor Driving motor Lamp Machine socket Thread cutter switch Capacitor ee Push pull solenoid Power transfomer Circuit board MS 2 Location of the Connectors Thread cutter switch Poner transformer Motor sensor primary id di ii Machine socket primary Capacitor Push pull solenoid Bobbin winder switch Power transformer secondary Lamp Arm lamp f Driving motor Sli
4. lightly contacts with the bobbin Tighten the setscrew 5 Restore the stopper 2 and press it against the thread drawing lever while pushing the solenoid disk 3 Tighten the setscrew firmly Attach the base 6 Auto Tension Release Turn the handwheel toward you to raise the needle 0 5 1 0mm bar until the needle point is just above the needle plate Set the tension dial at 4 and push the solenoid disk fully to the right The tension disks should open 0 5 1 mm III wo Loosen the lock nut 2 and turn the adjusting nut 3 to adjust the gap between the tension disks If the gap is too wide tun the adjusting nut counterclock wise If the gap is too narrow tun the adjusting nut clockwise gt Tighten the lock nut 28 Thread Cutter Troubleshooting The needle thread is not cut The static cutter is dull Replace or grind the static cutter blade The static cutter blade is out of position Adjust the position of the static cutter blade see page 25 Skipped stitch before thread cutting Reduce the check spring stroke see page 10 Adjust the needle to hook timing see page 7 The bobbin thread is not cut The thread cutter blade is out of position Adjust the stroke of the thread cutter blade see page 23 The thread guide plate is out of position Adjust the position of the thread guide plate see
5. Lower the needle bar to the lowest position Turn the handwheel toward you to raise the needle bar while pusging up the link body 4 Continue to turn the handwheel until the thread drawing arm 4 starts to move to the right The needle point should be 10 5 mm above the upper surface of the needle plate 6 when the thread drawing arm starts to move a Loosen the setscrews 6 and turn the hook shaft gear 7 to adjust the timing If the needle point is too high turn the hook shaft gear in the direction A If the needle point is too low turn the hook shaft gear in the direction B NOTES Hold the hook so that it will not rotate when turning the hook shaft gear Check the needle to hook timing and adjust it if neccessary 6 Tighten the setscrews firmly Attach the gear cover 2 and secure it with the setscrews 1 Attach the base 27 5 79 co 5 o o N Thread Drawing Lever Remove the base Loosen the setscrew 1 and free the stopper 2 Turn the the handwheel toward you to raise the needle bar from the lowest position until the needle point is 10 5 mm above the upper surface of the needle plate Push the solenoid disk 3 fully to swing the thread drawing lever 4 Loosen the setscrew 5 and move the thread drawing arm to the left or right so that the tip of the thread drawing lever
6. The clearance between the needle and hook point should be 0 0 1 mm 1 Turn the handwheel to bring the hook point behind the needle IN Knock on the hook race rim lightly to make a slight clearance between the needle and hook point NOTE Do not knock on the hook body e Tighten the setscrews firmly and check the needle to hook timing and the thread path 3 0 4 0 8 mm 3 Attach the needle plate 9 Hook Stopper Position 1 Remove the needle plate base and feed dog 2 Loosen the setscrew 1 and move the hook stopper 2 so that the center of the needle 3 is located between the center of th hook stopper 7 and outer side of the hook stopper spring 3 Tighten the setscrew 1 and attach the needle plate and base 10 Bobbin Winder Stopper The amount of thread wound on the bobbin should be 16 5 19 5 mm in diameter 1 Loosen the setscrew 1 Turn the bobbin winder stopper to adjust the thread amount If the amount is too mauch turn the stopper in the direction A If the amount is not enough turn the stopper in the direction B 16 5 19 5mm 2 Tighten the setscrew firmly N a 11 15 mm 10 11 Check Spring Stroke The amount of the needle thread supplied by the check spring should be 11 15 mm 1 Thread the machine up to the thread gui
7. 10 000002806 Snap ring E 6 11 000115504 Setscrew TP 5x10 12 767697008 Upper shaft unit 13 767617004 Upper shaft unit 14 767065001 Take up lever crank 15 000028107 Spring pin 4x25 16 761102003 Setscrew 17 767304005 Ball bearing 18 767227003 Spacer 19 767077006 Ring 20 767178008 Ball bearing 6901ZZ 21 000032702 Snap ring crescent 5103 46 22 000115205 Setscrew TP 4x6 23 767070009 Upper shaft timing gear 24 000110107 Hexagonal socket screw WP 5x5 25 767682000 Take up lever unit 26 767503006 Take up lever unit 27 761088002 Take up lever 28 761089003 Take up lever supporter 29 650040005 Felt 30 650041006 Felt holder 31 767073013 Needle bar conn stud 32 761086000 Needle bar crank pin 33 647139002 Setscrew 34 767072001 Needle bar crank rod 35 763033400 Oil wick 36 761091008 Take up lever pin 37 000111201 Hexagonal socket screw 4x4 38 767624004 Feed adjusting base unit 39 767118309 Indicator drum 40 767124124 Reverse stitch lever 41 767115100 Stitch length dial 42 000081005 Setscrew 4x8 43 000001609 Snap ring E 5 44 767136004 Timing belt 45 767632005 Needle threader unit 46 767034001 Needle threader plate 47 767032009 Needle threader shaft 48 000004808 Spring pin 2x6 49 767033000 Needle threader spring 50 000125208 Pin E 2x10 CH 51 000125404 Pin G 2x14 CH 52 000002105 Snap ring E 3 53 767633006 Needle threader guard plate unit 54 767071000 Timing belt 55 767168005 Needle threader guide plate 56 000103808 Setscre
8. 1600P QC PARTS LIST 44 1600P QC PARTS LIST KEY PARTS NO NO DESCRIPTION 1 767089001 Feed lifting cam 2 000111304 Hexagonal socket screw 5x5 3 767620000 Feed link unit 4 000002909 Snap ring E 7 5 000002507 Snap ring E 4 6 000114802 Setscrew TP 4x12 7 767619109 Feed base unit 1 8 767621104 Feed base unit 2 9 767094009 Feed rock arm 10 767095000 Feed rock arm pin 11 000001609 Snap ring E 5 12 822063003 Felt 2 13 767212005 Felt holder sping 14 000111201 Hexagonal socket screw 4x4 15 767120005 Feed base spring 16 767121006 Spring attach plate 17 000101404 Setscrew 4x6 18 767096001 Feed rock shaft 19 000030205 Snap ring E 8 20 767097002 Bushing Front 21 639095000 Ring 22 767099004 Bushing Rear 45 1600P QC PARTS LIST gt NEAR A A ES 46 1600P QC PARTS LIST KEY PARTS NO NO DESCRIPTION 1 767663005 Feed regulator unit 2 767100009 Feed adjusting arm 3 000218106 Bolt 5x16 4 767101000 Pin 5 000001609 Snap ring E 5 6 767102001 Feed link T 767106005 Pin 8 000111304 Hexagonal socket screw 5x5 9 767157001 Washer 10 767664006 Feed cam unit 11 767107006 Feed adjusting arm 12 767159003 Pin 13 767108007 Feed adjusting shaft 14 767099004 Bushing rear 15 767097002 Bushing front 16 639095000 Lower shaft ring 17 767111003 Feed regulator spring 18 639095103 Lower shaft ring 19 7671120
9. 1600P QC PARTS LIST 38 1600P QC PARTS LIST KEY PARTS NO NO DESCRIPTION 1 767609106 Hook cover plate unit 2 767018009 Hook cover plate 3 767019000 Hook cover plate spring 4 820374004 Setscrew 2x2 3 5 767020004 Hook cover plate supporter spring 6 767220006 Sticker Y 767281108 Needle plate 8 102053007 Setscrew 9 767017008 Hook cover plate retainer 10 767021005 Attachment mount 11 681009101 Setscrew 12 767171001 Presser foot lifter 13 846033008 Hinge screw 14 767650009 Thread tension release lever unit 15 767233002 Plate 16 000081005 Setscrew 4x8 17 767651103 Thread tension release base plate unit 18 000001609 Snap ring E 5 19 767530002 Wire unit 20 846210001 Roller 21 000002105 Snap ring E 3 22 767290007 Spring 23 767232001 Thread tension release base plate 24 000036500 Washer FT 60 25 767231000 Thread tension release crank 26 676222008 Spring 27 761045007 Thread tension release lever spring 28 000101404 Setscrew 4x6 39 1600P QC PARTS LIST y 3 x A N N N N m X 1600P QC PARTS LIST KEY PARTS NO NO DESCRIPTION 1 767271002 Upper shaft shield plate 2 820102009 Washer 3 000103509 Setscrew 4x10 4 767195012 Belt wheel 5 000111304 Hexagonal socket screw 5x5 6 767139100 Handwheel T 556047007 Washer 8 618070004 Setscrew 9 767618005 Idler unit
10. page 24 The thread slips out the needle eye when starting sewing The needle to cutter cam tim ing is too late The thread drawing lever is out of position Adjust the needle to cutter cam timing see page 26 Adjust the thread drawing lever position see page 27 The needle thread bunches up on the wrong side of the fabric at the beginning of the seam A too long tail of the needle thread is left after thread cut ting Adjust the needle to cutter cam timing see page 26 Adjust the position of the static cutter blade see page 25 The tail of the needle thread appears on the right side of the fabric The pre tension is too loose Tighten the pre tension The needle to cutter cam tim ing is too late Adjust the needle to cutter cam timing see page 26 The static cutter blade is out of position Adjust the position of the static cutter blade see page 25 Skipped stitches at the begin ning of the seam due to a too short tail of the thread after thread cutting The auto tension release is not enough Adjust the auto tension release see page 28 The needle to cutter cam tim ing is too early Adjust the needle to cutter cam timing see page 26 The thread drawing lever is outt of position Adjust the thread drawing lever position see page 27 The static cutter blade is out of position Adjust the static cutter blade position see pag
11. the power switch on while pressing the Up Down needle position button 2 and bobbin winding button at the same time Remove the top cover Lower the needle bar by turning the handwheel until the needle point is 18 7 mm above the upper surface of the needle plate Loosen the setscrew Rotate the upper shaft shielding plate toward you until the green LED turns on Tighten the setscrew and turn the power switch off Attach the top cover 21 10 Power Transformer Remove the top cover and motor cover N Remove the board A case lid and pull out the transformer connectors primary and secondary from the circuit board A e Remove the driving motor gt Remove the setscrew and cord binder 5 Remove the setscrews 3 and transformer al To attach follow the above procedure in reverse 11 Machine Socket Et 1 Remove the top cover belt cover and motor cover M Remove the board A case lid and pull out the machine socket connectors primary and secondary from the circuit board A U gt Remove the setscrews 1 and cord guide 1 Remove the setscrews 3 and machine socket 4 al To attach follow the above procedure in reverse 22 12 Light Bulb Loosen the set screw 1 and remove the face plate 2
12. 04 Feed adjusting arm 20 767654003 Thread cutter driving base unit 21 767242004 Driving arm base plate 22 767244006 Driving arm 23 767243005 Link 24 767253008 Driving arm pin 25 000002507 Snap ring E 4 26 767247005 Cam spring 27 000036108 Washer FT 70 28 767245007 Driving lever 29 767252007 Thread drawing arm 30 000101404 Setscrew 4x6 31 767275006 Spring 32 767282006 Guard plate 33 000103004 Setscrew 3 5x6 34 767246008 Thread tension release arm 35 767247009 Thread cutter link 36 767248000 Hinge screw 3 37 000061102 Nut 4 1 7 38 000070506 Washer 4 39 767289003 Limitter plate 40 767656005 Link unit 41 767249001 Link 42 767250005 Coupling 43 000061319 Nut 5 1 8 44 000102003 Setscrew 5x10 45 767238007 Wire joint 46 000061412 Nut 5 3 8 47 000081005 Setscrew 4x8 48 767661405 Thread cutter button unit 49 767283306 Button 2 50 767284008 Button holder 51 767542007 Printed circuit board UD unit 52 000161701 Setscrew 2 3x5 B 53 767655200 Solenoid unit 54 767534109 Push pull solenoid unit 55 767254009 Set plate 56 000070300 Washer 5 57 000115504 Setscrew TP 5x10 58 767235004 Plate 2 47 1600P QC PARTS LIST a 48 1600P QC PARTS LIST KEY PARTS NO NO DESCRIPTION 1 767642008 Knee lifter lever 1 unit 2 767057000 Knee lifter lever 1 3 000196107 Hexagonal socket screw 5x20 Ball point 4 000061412 Nut 5 767058001 Knee lifter s
13. 44 000001104 Snap ring E 2 3 45 000103808 Setscrew 3x5 46 767146007 Lamp shield plate 47 000026002 Wedge base lamp 12V 5W 48 000071013 Washer 49 846227001 Handle spring 50 767696007 Presser foot lifter switch unit 51 767224000 Set plate 52 000053008 Cord binder 53 100517008 Sticker Canada 31 1600P QC PARTS LIST 32 1600P QC PARTS LIST KEY PARTS NO NO DESCRIPTION 1 767605504 Belt cover unit 2 767011116 Belt cover 3 767014304 Stitch length window 4 767636009 Thread guide unit 5 784177000 Thread guide post 6 767015006 Thread guide bar Y 000115700 Setscrew TP 4x10 8 000170507 Setscrew 4x12 9 767010001 Motor cover 10 000101806 Setscrew 4x16 11 767653002 Motor unit 120V U S A Canada 767665007 Motor unit 230V Australia UK Continental Europe 12 014390106 Motor unit U S A Canada 023690211 Motor unit Australia UK Continental Europe 13 767507000 Printed circuit board V unit 14 767134002 Set plate 15 000103808 Setscrew 3x5 16 000062402 Nut 4 2 7 U S A Canada 17 767135003 Motor bracket 18 000115504 Setscrew TP 5x10 19 767606907 Base unit U S A 767606918 Base unit Canada 767606206 Base unit Australia UK Continental Europe 20 767012209 Base 21 767013004 Base cover 22 767188001 Table latch spring 2 23 000171302 Setscrew 4x8 B 24 767187000 Table latch spring 1 25 000101404 Setscrew 4x6 26 767643102 Bed rubber foot unit 2
14. 6 761172004 Hemmer foot 7 822020503 Spool cap 8 784223105 Spool holder 9 624806006 Net 10 767802008 Assorted needle set 11 802424004 Lint brush 12 846417000 Knee lifter unit 13 762456204 Oil 14 366401400 Accessory box 15 043670206 Foot control 16 653524007 Power supply cord U S A Canada 830314018 Power supply cord Australia 830377008 Power supply cord UK 830335004 Power supply cord Continental Europe 17 767800279 Instruction book English Spanish French 767800327 Instruction book Swedish Norwegian Danish 18 767805001 Cover 51
15. 7 797363005 Bed rubber foot 28 785260004 Bed rubber foot plate 29 784169010 Bed rubber foot screw 30 000070300 Washer 31 000053008 Cord binder 32 830312016 Sticker U S A 100045000 Sticker Canada 33 767541006 Jack cord unit 34 000071024 Washer 4 33 1600P QC PARTS LIST 34 1600P QC PARTS LIST KEY PARTS NO NO DESCRIPTION 1 767601142 Ornamental plate unit 2 767003908 Ornamental plate 3 767004600 Button 1 4 767501004 Printed circuit board F unit 5 000120203 Setscrew 3x8 6 767140207 Speed control slider 7 767516002 Slide volume 8 767354000 Emblem 9 000014306 Snap ring CS 3 10 000115205 Setscrew TP 4x6 11 767626006 Arm lamp unit 12 767126001 Reflector plate 13 000101127 Setscrew 3x4 14 767127002 Arm lamp set plate 15 767128003 Lamp holder 16 501509806 Lamp socket unit 17 000225209 Setscrew 2 3x12 B 18 000053008 Cord binder 19 000026002 Wedge base lamp 12V 5W 20 000081005 Setscrew 4x8 21 767612009 Oil wick fixing plate 2 unit 22 767153007 Oil wick fixing plate 23 763033020 Oil wick 24 000101404 Setscrew 4x6 25 767627708 Printed circuit board A unit U S A Canada 767627801 Printed circuit board A unit Australia UK Continental Europe 26 767130008 Printed circuit board A case upper 27 000075109 Setscrew 3x12 2V 28 767532107 Printed circuit board A unit 120V U S A Canada 767536101 Printed citcuit board A unit 230V Australia UK
16. SERVICE MANUAL amp PARTSLIST 1600P QC JANOME 1600P QC Table of Contents Replacing the External parts Face Platea nu TO o e eee eee BELLO o de eo nO Motor Cover un nee folio eee aie Mechanical Adjustment Needle Bar Height ooer iaiia ae Presser Bar Height ee een Feed Dog Height naeh Feed Dog Alignment ooooor no RE nn nn Feed Cam Timing zastanca oko ani oo Feed Lifting Cam Timing tada Needleto H k MING usaste Clearance Between Needle and Hook Point oooooocccccnonccccccccccccnnnno Hook Stopper POSI Massa pri leia Bobbin Winder Stopper mistica di Check Spring Stroke na ae Pre tension Dial seners a a a Knee Lifter Lever srein riea E Er ira en RRi Needle Thread f s iniii a ln aa ia Replacing the Electronic Components Location of the Electronic Components coooocccccnoncccnononocannnonanannnnnonns Location of the Connectors u a aa a Internat WI Scans pe A A Z o ane Circuit Board F and Slide Volume oooroonnnnnn non nn To Replace the Printed Circuit Board UD uusnssnnnnnsnnsnnnnnnnnn DAVNA MOLOI ansk o topado Needle Stop POSHO issaraen aa eea i eia aa Power TransTorMeT nenesinin bro A ER AEE Machine Socket ee een een Light BulD end ee Adjustment of the Thread Cutter Mechanism Thread Cutter Blade na ana a reseiriii arii nue soia Thread Guide Plata a ER Ei Static Cutter Blade ads Needle to Cutter Cam Timing ccccooccccnnnncccnnnanancnononannnnnnnnnnnnnnnnnnnos Thr
17. and attach the base N 6 Feed Lifting Cam Timing men To check 1 Lower the needle bar until the point of needle is 0 4 mm below the needle plate 1 DR 2 The top of the feed dogs 2 should be 0 0 1 mm DAt above the needle plate o 0 1mm To adjust 1 Remove the base and lay the machine on its back Lower the needle bar until the needle point is 0 4 mm below the needle plate 1 Loosen the setscrew 3 If the feed dogs are higher turn the feed lifting cam 4 in the direction A If the feed dogs are lower turn the feed lifting cam 4 in the direction B Tighten the setscrew e and attach the base 2 0mm Lowest position Lo 0 0 1mm 0 0 1mm Y k 0 4 0 8mm 7 Needle to Hook Timing me Remove the needle plate Loosen the 3 setscrews 1 Pull out the hook race very slightly less than 0 5 mm IN o Raise the needle bar from the lowest position until the lower heirline of the needle bar matches the edge of the needle bar bushing NOTE The needle bar rises 2 mm from the lowest position 3 Rotate the hook to match the hook point 4 with the right side of the needle Tighten the setscrews slightly and proceed with the adjustment of the clearance between the needle and e hook point 8 Clearance Between Needle and Hook Point
18. ar allel to the upper shaft gt Tighten the setscrew and attach the face plate 2 Presser Bar Height The distance between the bottom of the presser foot in up position and the needle plate should be 5 7 6 3 mm 1 Remove the face plate and needle IN Lower the feed dog below the needle plate Place a block 6 mm thick under the presser foot and lower the presser foot lifter e Loosen the setscrew 1 Raise the presser foot lifter and tighten the setscrew 1 firmly Attach the needle and face plate NOTE Make sure that the presser foot should be parallel to the feed dog slots Din the needle plate Presser foot should be parallel to the feed dog slots 0 8 1 0mm Lateral gaps should be even I 4 2 4 8mm 3 Feed Dog Height When the feed dog is fully raised the height should be 0 8 1 0 mm above the needle plate Set the stitch length dial at 6 Maximum Turn the handwheel to bring the feed dog to the highest position 2 Loosen the setscrew 1 w Turn the eccentric pin 2 to adjust the feed dog height to 0 9 mm If the feed dog is too low turn the pin to the right If the feed dog is too high turn the pin to the left 4 Tighten the setscrew 1 gt 4 Feed Dog Alignment a The lateral gaps between both sides of feed dogs and needle pl
19. ate slots should be even The crealance between the front end of the center feed dog and center slot should be 4 2 4 8 mm when the stitch length dial is set at 0 Remove the base and lay the machine on its back 2 Set the stitch length dial at 0 3 Loosen the setscrews 1 Move the feed base 2 up or down to adjust the clearance Sbetween the front end of the center feed dog and center slot to 4 5 mm Adjust the lateral position of the feed dogs by moving the feed rock shaft 4 to the right or left if neccessary 4 Tighten the setscrews Set the stitch length dial at 6 and turn the handwheel to check if the feed dogs do not touch the needle plate 5 Attach the base 5 To Check 1 N Lower the needle bar by turning the handwheel until the point of the needle is 17 5 mm above the upper sur face of the needle plate The feed dogs should not move when moving the reverse stitch lever up and down If the feed dogs move adjust the feed cam timing as follows To Adjust _ M wm gt 1 Remove the base and lay the machine on its back Lower the needle bar until the needle point is 17 5 mm above the needle plate Loosen the setscrews 2 While moving the reverse stitch lever turn the feed cam 3 in the direction either A or B until the feed dogs stop moving Tighten the setscrews 2
20. d guide Remove the setscrew B and the thread cutter button unit Replace the printed circuit board UD To attach Connector Cord guide 4 Sad lo O d 2 o Setscrew A e aa Je New printed circuit board UD Setscrew B Thread cutter button unit 17 Follow the procedure above in reverse 7 Driving Motor To remove 1 Remove the belt cover and motor cover 2 Pull out the motor sensor connector 1 3 Pull out the motor connector 2 while pushing the connector lock 3 Remove the nuts and driving motor 5 b NOTE Do not disconnect the connectors by pulling on cord To disconnect grasp the connector not the cord to be continued on next page 18 Motor belt tension 8 Driving Motor continued To attach 1 Install the driving motor 1 to the motor bracket 2 and attach the motor belt 3 Tighten the nuts G firmly IN Loosen the setscrews 5 slightly and move the motor up or down to adjust the motor belt tension The belt should deflect 4 5 mm when applying 300 grams of load to the middle of the belt Tighten the setscrews firmly Insert the motor connector 6 and motor sensor connector O e 3 Attach the motor cover and belt cover 19 18 7 mm 20 9 Needle Stop Position 1 Turn
21. de 1 and lower the presser foot Lower the needle bar to the lowest position 2 Hold the thread end and mark the point on the thread beside the thread guide NOTE There should be no slack in the thread w Pull the thread gently to the left until it stops the check spring went full stroke gt Measure the length of thread drawn out 5 Loosen the setscrew 4 and move the tension dial guide to adjust the stroke If the length is too long turn the guide in the direction A If the length is too short turn the guide in the direction B 6 Tighten the setscrew 4 12 Pre tension Dial The standard position of the pre tension dial is as follows The screw head Dsinks 4 mm below the dial face 13 Knee Lifter Lever The presser foot rises 7 5 mm when it is fully raised with the knee lifter Remove the base and lay the machine on its back M Loosen the nut Don the knee lifter lever slightly and turn the adjusting screw to adjust the height If it is lower than 7 5 mm turn the adjusting screw 3 clockwise If its higher than 7 5 mm turn the adjusting screw 3 counterclockwise e Tighten the nut firmly and attach the base NOTE Lower the needle bar to the lowest position and check if the needle cramp does not hit against the presser foot when it is fully raised
22. de volume Machine socket secondary 13 3 Internal Wiring To prevent the internal wirings from contacting the moving parts or being caught in the joint of the external parts the internal wirings should properly be routed and secured as illustrated Motor cord Motor sensor cord Machine socket cord primary Machine socket cord secondary Push pull solenoid cord Capacitor cord Cord binder Cord guide 1 Thread cutter cord Cord guide 2 Setscrews for cord guide 1 Motor censor cord Cord guide 1 Cord binder Motor cord 14 4 Circuit Board AA To remove 1 Remove the top cover N Pull out connectors from the circuit board A Remove the cords from the cord clips 1 Remove the setscrews 2 and the board A case lid e 5 Pull out the connectors under the case lid Remove setscrews 4 and circuit board A To attach Install the circuit board A and secure it with the setscrews 4 al Insert the following connectors 5 Machine socket primary Power transformer primary D Driving motor Attach the board A case lid Gand secure it with the setscrews 2 gt Insert the remaining connectors and secure the cords with the cord clips Don the case lid N co Attach the top cover NOTE Do not disconnect the connectors by pulling on cord To disc
23. e 25 29 1600P QC PARTS LIST 30 1600P QC PARTS LIST KEY PARTS NO NO DESCRIPTION 1 767603605 Top cover unit 2 767007201 Top cover 3 846015004 Handle 4 846016005 Pin 5 000115205 Setscrew 4x6 6 767008109 Foot pressure adjusting dial 7 000015101 Snap ring CS 22 8 767639002 Thread guide unit 9 000160102 Adjustable lock nut 10 846021003 Top cover thread guide 11 767514608 Pre tension unit 12 000111201 Hexagonal socket screw 4x4 13 767604008 Bobbin winder unit 14 846514101 Micro switch 15 000115308 TP screw 2x8 16 000104119 Setscrew 4x20 17 846179007 Motor cover 18 000081005 Setscrew 4x8 19 000101703 Setscrew 4x12 20 000014007 Snap ring CS 4 21 000188405 Cord binder 2 22 767152006 Oil wick fixing plate 23 763033204 Oil wick 24 000101404 Setscrew 4x6 25 767211004 Felt 26 000080901 Setscrew 4x25 27 767602202 Face plate unit U S A Australia UK Continental Europe 767602604 Face plate unit Canada 28 767005209 Face plate 29 767006107 Foot pressure display window 30 767197003 Presser bar base 31 000103004 Setscrew 3 5x6 32 840602109 Thread cutter unit 33 000095105 Setscrew 3x5 34 767208008 Needle sticker 35 000071024 Washer 4 36 000103510 Setscrew 4x10 37 767611101 Front bracket unit 38 767016203 Front bracket 39 767038005 Lamp bracket 40 767174004 Lamp cushion 41 501509703 Lamp socket unit 42 000114905 Setscrew TP 2x10 43 767183006 Lamp set plate
24. ead Drawing ever ee ee Auto Tension Release occcccccccconcconononnnnnenonnnnnnnnnnnnnnnnnnnnnnnonenininnniss Thread Cutter Troubleshooting ooooooccccooccc nococccccnnoccccccnonancnnnnnos Parts NST cose nee ee ie een Replacing the External Parts 1 Face Plate Remove the setscrew 4 x 10 6 and washer 2 Remove the face plate 3 2 Top Cover Remove the setscrews 4 x 25 Lift the top cover and pull out the motor connec tor Remove the top cover 3 Belt Cover Remove the 3 setscrews 4 x 12 7 and the belt cover 8 Pull out the socket connector 46 from the printed circuit board UD connector 47 NOTE When attaching the belt cover engage the hooks with the motor cover 4 Motor Cover Remove the 3 setscrews 4 x 12 and remove the motor cover 0 5 Base Remove the 4 hinge screws 1 washers 2 rubber feet 3 and base washers 9 Remove the base 15 To attach Follow the above procedures in reverse Mechanical Adjustment 1 Needle Bar Height 1 Remove the face plate IN Turn the handwheel to bring the needle bar to the lowest position e Loosen the setscrew 2 Move the needle bar up or down and match the upper hairline 3 with the bottom edge of the needle bar bushing 4 NOTE Be sure not to rotate the needle bar when adjusting the needle bar height The needle clamp screw should be p
25. haft 6 000030009 Snap ring E 10 7 767352008 Stopper 8 767060006 Knee lifter lever 2 9 000001609 Snap ring E 5 10 000111201 Hexagonal socket screw 4x4 11 767059002 Shaft 12 767616003 Knee lifter lever 3 unit 13 767062008 Knee lifter lever shaft 14 846173001 Knee lifter lever spring 15 767063009 Presser foot lifter rod 16 000013800 Snap ring CS 6 17 846171009 Knee lifter lever unit 18 000115700 Setscrew TP 4x10 19 767631004 Upper shaft sensor unit 20 000103808 Setscrew 3x5 21 767131009 Sensor fixing plate 22 843505409 Printed circuit board P unit 23 000066705 Setscrew 3x8 24 767533005 Transformer unit 120V U S A Canada 767537009 Transformer unit 230V Australia UK Continental Europe 25 000081005 Setscrew 4x8 26 000188601 Cord binder 27 767660002 Machine socket unit U S A Canada 767666008 Machine socket unit Australia UK Continental Europe 28 000103509 Setscrew 4x10 29 767237006 Cord binder 1 30 767659008 Capacitor unit 31 767535007 Capacitor 32 767279000 Capacitor case 33 767667009 Noise filter unit Australia UK Continental Europe 34 767538000 Noise filter unit 35 767277008 Noise filter set plate 36 000103808 Setscrew 3x5 49 1600P QC PARTS LIST 3 A P 15 16 50 1600P QC PARTS LIST KEY PARTS NO NO DESCRIPTION 1 820832005 Large screwdriver 2 647803004 Small screwdriver 3 761094115 Bobbin 4 200100801 Cloth guide 5 825252000 Thumb screw
26. m 23 N w 24 gt Thread Guide Plate Remove the needle plate Loosen the flat screw and adjust the position of the thread guide plate 2 The left inner edge 3 of the thread guide plate should be approximately 1 4 mm from the center of the needle drop position 4 and the back inner edge of the thread guide plate should be approximately 2 7 mm from the center of the needle drop position Tighten the flat screw firmly Attach the needle plate 3 Static Cutter Blade 1 Remove the needle plate and base N Lower the needle bar to the lowest position Turn the handwheel toward you while pushing up the link body to engage the thread cutter blade and bring it under the static blade 3 wm Loosen the setscrews 4 and adjust the position of the static cutter blade 3 so that the distance between the center of the needle drop position and the static cutter blade 3 is 4 mm and the left edges of the static blade and thread cutter blade are aligned Tighten the setscrews 4 Attach the needle plate and base gt O A E gt Ti O 4 mm Align the left edges of the thread cutter blade and the static cutter blade 25 Needle to Cutter Cam Timing mm Remove the base N Pemove the setscrews 1 and gear cover 10 5 mm 26 w
27. onnect grasp the connector not the cord Changing the Fuse 1 Remove the Fuse from Fuse clip with a screw F1 Fuse F2 Fuse driver AC250V 3 15A AC250V 3 15A 2 Insert a new fuse and push it down into the fuse clip NOTE Replace the fuse with the same type and rating If there is any trace of burning browning or other abnormalities on the circuit board A replace it Fuse Manufacture Type F1 SOC ET 3 15A 250V F2 SOC ET 3 15A 250V 15 5 Circuit Board F and Slide Volume Removed the top cover Pull out the circuit board F connector slide volume connector from the circuit board A 3 Loosen the 3 set screw A Remove the ornamental panel 4 Remove the 3 set screws B and remove the circuit board F G from the panel Remove the 2 CS rings 6 and slide volume N To attach follow the above procedure in reverse 16 Cord binder za Printed circuit board A 6 To Replace the Printed Circuit Board UD To remove 1 oo Remove the top cover belt cover and base Remove the cord binder below the handwheel Disconnect the connector of the thread cutter from the printed circuit board A Remove the setscrew A and cor
28. w 3x5 57 767634007 Needle threader positioning base unit 58 767043003 Needle threader positioning base 41 1600P QC PARTS LIST amp 14 Er Os 16 17 15 De gt Pr 42 1600P QC PARTS LIST KEY PARTS NO NO DESCRIPTION 1 767510101 Hook race unit 2 767510006 Bobbin case unit 3 761094115 Bobbin 4 767518004 Hook race stopper unit 5 767079008 Hook race stopper 6 767201001 Hook race stopper spring 7 000169709 Setscrew 2x2 3 8 000081005 Setscrew 4x8 9 767698102 Hook race shaft unit 10 000111201 Hexagonal socket screw 4x4 11 000115205 Setscrew TP 4x6 12 767081003 Hook race gear 13 000111304 Hexagonal socket screw 5x5 14 767241003 Thread cutter cam 15 000114606 Setscrew TP 3x14 16 820166001 Lower shaft ring 17 767182005 Ball bearing 698Z 18 767084006 Gear cover 19 000101404 Setscrew 4x6 20 767085007 Lower shaft bushing 21 767067003 Felt 22 767644000 Lower shaft unit 23 000110107 Hexagonal socket screw WP 5x5 24 767221007 Lower shaft gear 25 767613000 Lower shaft supporter unit 26 000114802 Setscrew TP 4x12 27 767657006 Auto thread cutter unit 28 767264002 Thread cutter blade 29 767266004 Thread guide plate 30 000001609 Snap ring E 5 31 767658007 Thread drawing lever unit 32 767268006 Thread drawing lever 33 767280004 Spring 34 000002105 Snap ring E 3 35 767251006 Link 36 767259004 Cushion 3 37 000002507 Snap ring E 4 38 767276007 Spring 43
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