Janome HD9 Service Manual Download Page 15 | Manualshive

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Cord guide (1)

Cord binder

Cord guide (2)

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.

Thread cutter cord

Motor cord
Motor sensor cord
Machine socket cord (primary)
Machine socket cord (secondary)
Push-pull solenoid cord
Capacitor cord

Motor cord

Motor censor cord

Cord guide (1)

Setscrews for cord guide (1)

Cord binder

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Summary of Contents for HD9

Page 1: ...First Edition 16 October 2018 SERVICE MANUAL MODEL HD9...

Page 2: ...edle Threader 11 Replacing the Electronic Components Location of the Electronic Components 12 Location of the Connectors 12 Internal Wiring 13 Circuit Board A 14 Circuit Board F and Slide Volume 15 To...

Page 3: ...s 4x12 u and the belt cover i Pull out the socket connector 7 from the printed circuit board UD connector 8 NOTE When attaching the belt cover engage the hooks with the motor cover 4 Motor Cover Remov...

Page 4: ...m when the tip of the hook meets right side of the needle as the needle ascends 2 0mm from its lowest position when adjusted 6 0mm Mechanical Adjustment 2 Presser Bar Height The distance between the b...

Page 5: ...ate slots should be even The clearance between the front end of the center feed dog and center slot should be 4 2 to 4 8 mm when the stitch length dial is set at 0 Remove the base and lay the machine...

Page 6: ...stitch lever up and down If the feed dogs move adjust the feed cam timing as follows To Adjust Remove the base and lay the machine on its back Lower the needle bar until the needle point is 17 5 mm ab...

Page 7: ...e the needle plate To adjust 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 q Loosen the setscrew e If the feed dogs are h...

Page 8: ...needle Tighten the setscrews q slightly and proceed with the adjustment of the clearance between the needle and hook point 8 Clearance Between Needle and Hook Point The clearance between the needle an...

Page 9: ...dog Loosen the setscrew q and move the hook stopper w so that the center of the needle e is located between the center of the hook stopper r and outer side of the hook stopper spring t Tighten the se...

Page 10: ...n should be 20 to 22 mm in diameter Loosen the setscrew q Turn the bobbin winder stopper w to adjust the thread amount If the amount is too much turn the stopper in the direction A If the amount is no...

Page 11: ...the thread Pull the thread gently to the left until it stops the check spring e went full stroke Measure the length of thread drawn out Loosen the setscrew r and move the tension dial guide t to adjus...

Page 12: ...w slightly and turn the adjusting screw e to adjust the height If it is lower than 7 to 8 mm turn the adjusting screw e clockwise If it is higher than 7 to 8 mm turn the adjusting screw e counterclock...

Page 13: ...ook q thrusts or hits against either left or right edge of the needle eye w Loosen the setscrew e Move the threader plate r to adjust the lateral position of the threader hook q If the threader hook q...

Page 14: ...read cutter switch Bobbin winder motor Replacing the Electronic Components 1 Location of the Electronic Components 2 Location of the Connectors Motor sensor Printed circuit board F Thread cutter switc...

Page 15: ...ht in the joint of the external parts the internal wirings should properly be routed and secured as illustrated Thread cutter cord Motor cord Motor sensor cord Machine socket cord primary Machine sock...

Page 16: ...imary u Driving motor Attach the printed circuit board A case e and secure it with the setscrews w Insert the remaining connectors and secure the cords with the cord clips q on the case lid Attach the...

Page 17: ...printed circuit board A e Loosen the 3 setscrew A Remove the ornamental panel r Remove the 3 setscrews B and remove the printed circuit board F t from the panel Remove the 2 CS rings y and slide volum...

Page 18: ...remove z Remove the top cover belt cover and base x Remove the cord binder below the handwheel c Disconnect the connector of the thread cutter from the printed circuit board A Remove the setscrew A an...

Page 19: ...otor sensor connector q Pull out the motor connector w while pushing the connector lock e Remove the nuts r and driving motor t NOTE Do not disconnect the connectors by pulling on cord To disconnect g...

Page 20: ...Loosen the setscrews t slightly and move the motor up or down to adjust the motor belt tension The belt should deflect 7 to 9 mm when applying 300 grams of load to the middle of the belt Tighten the s...

Page 21: ...me 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 r Loosen the setscrew t Rotate the upper shaft shiel...

Page 22: ...move the setscrews e and transformer r To attach Follow the procedure above in reverse 11 Machine Socket To remove Remove the top cover belt cover and motor cover Remove the printed circuit board A ca...

Page 23: ...D holder e and remove the LED r To attach Follow the procedure above in reverse Printed circuit board UD1 To replace Remove the face plate and top cover Remove the lamp cover q Pull out the connector...

Page 24: ...bar to the lowest position Turn the handwheel toward you while pushing up the link body e to engage the thread cutter blade and bring it w to the end of the stroke Loosen the nut r and move the thread...

Page 25: ...inner edge e of the thread guide plate should be approximately 1 4 mm from the center of the needle drop position r and the back inner edge t of the thread guide plate should be approximately 2 7 mm...

Page 26: ...blade e Loosen the setscrews r and adjust the position of the static cutter blade e so that the distance between the center of the needle drop position t and the static cutter blade e is 4 mm and the...

Page 27: ...surface of the needle plate t when the thread drawing arm starts to move Loosen the setscrews y and turn the hook shaft gear u to adjust the timing If the needle point is too high turn the hook shaft...

Page 28: ...needle plate Push the solenoid disk e fully to swing the thread drawing lever r Loosen the setscrew t and move the thread drawing arm y to the left or right so that the tip of the thread drawing lever...

Page 29: ...nsion dial at 4 and push the solenoid disk q fully to the right The tension disks should open 0 5 to 1 mm Loosen the lock nut w and turn the adjusting nut e to adjust the gap between the tension disks...

Page 30: ...is not enough The needle to cutter cam timing is too early The thread drawing lever is out of position The static cutter blade is out of position Replace or grind the static cutter blade Adjust the po...

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