Janome MyStyle 100 Manuel utilisateur

SERVICE MANUAL

Mystyle 100

CONTENTS

WHAT TO DO WHEN .......................................................................................... 1~3

SERVICE ACCESS

FACE COVER ........................................................................................ 4

FRONT COVER ...................................................................................... 5

REAR COVER ........................................................................................ 6

MECHANICAL ADJUSTMENT

TOP TENSION ...................................................................................... 7

PRESSER BAR HEIGHT AND ALIGNMENT ......................................... 8

NEEDLE SWING .................................................................................... 9

NEEDLE DROP POSITION .................................................................. 10

HOOK TIMING ...................................................................................... 11

NEEDLE BAR HEIGHT ........................................................................ 12

ADJUSTING CLEARANCE BETWEEN NEEDLE AND HOOK POINT .............

FEED DOG HEIGHT ............................................................................ 14

BACKLASH BETWEEN HOOK GEAR AND LOWER SHAFT GEAR .. 15

DISTORTED PATTERN ....................................................................... 16

BUTTONHOLE STITCH BALANCE ..................................................... 17

BARTACK FEED OF BUTTONHOLE ................................................... 18

DISENGAGEMENT OF CAM FOLLOWER .......................................... 19

MOTOR BELT TENSION ..................................................................... 20

WIRING ................................................................................................ 21

PARTSLIST ..................................................................................................... 22~37

What to Do When

Condition Cause How to fix Reference

1. SKipped 1. Needle is not inserted Insert the needle properly.

stitches properly.

2. Needle is bent or worn. Change the needle.

3. Incorrectly threaded. Rethread.

4. Needle or thread are Use the recommended

inappropriate for sewing needle and thread.

fabric being sewn.

5. Sewing on stretch Use a #11 blue tip needle.

fabric.

6. Presser foot pressure Adjust the presser bar

is too weak. level to make the

pressure stronger.

7. Inappropriate needle See mechanical p.12

bar height. adjustment

“Needle Bar Height”.

8. Inappropriate needle See mechanical p.11

to hook timing. adjustment

“Hook Timng”.

9. Inappropriate needle See mechanical adjustment p.13

to hook clearance. “Adjusting Clearance Between

Needle and Hook Point”.

2. Fabric not 1. Incorrect feed dog height. See mechanical p.14

moving adjustment “Feed Dog

Height”.

2. Feed dog is in down Raise the Feed dog level.

position.

3. Thread on bottom side Make sure to bring

of fabric is jammed up. both needle and bobbin

thread under the foot

when starting sewing.

4. Feed dog teeth are Change the feed dog.

worn.

Condition Cause How to fix Reference

3. 1. Initial sewing speed is Start with medium speed.

too fast.

2. Thread path is incorrect. Use the proper thread path.

3. Needle is bent or dull. Replace with a new needle.

4. Upper thread tension is Adjust needle thread

too strong. tension correctly.

5. Needle size is Use appropriate needle

inappropriate for fabric. for fabric and thread in use.

6. Needle eye is worn. Change the needle.

7. Needle hole in needle Repair the hole or

plate is worn or burred. replace the needle plate.

4. 1. Incorrectly threaded Thread bobbin correctly.

bobbin.

2. Too much thread is Adjust the position of

on the bobbin. stopper.

3. Lint is stuck inside the Clean the shuttle.

bobbin holder.

4. Thread quality is Change to a higher quality

too low. sewing thread.

5. Thread is jamming Clear out the jamming

around the bobbin. thread.

5. Needle 1. Needle is hitting the See mechanical p.10

breaks needle plate. adjustment “Needle Drop

Position”.

2. Needle is bent or worn. Change the needle.

3. Needle is hitting the See mechanical adjustment p.13

Hook. “Clearance between

Needle and Hook Point”.

4. The fabric moves while See mechanical p.9

the needle is piercing adjustment “Needle

it, or the needle zigzags Swing”.

while in fabric.

5. Fabric is being pulled too Guide the fabric gently

strongly while sewing. while sewing.

Needle

thread

breaks

Bobbin

thread

breaks

Condition Cause How to fix Reference

6. Noisy 1. Backlash between See mechanical p.15

operation the hook gear and adjustment “Backlash

lower shaft gear is too between Hook Gear and

great. Lower Shaft Gear”.

2. Lower shaft gear is loose. Eliminate the looseness.

3. Inappropriate belt tension. See mechanical adjustment p.20

“Motor Belt Tension.”

4. Not enough oil. Oil all moving parts.

5. Upper shaft is loose. Eliminate the looseness.

7. Deformed 1. Inappropriate feed See mechanical adjustment p.16

pattern balance. “Distorted pattern”

2. Inappropriate zigzag See mechanical p.9

synchronization. adjustment “Needle Swing.”

3. Upper thread tension Adjust needle thread

is too strong. tension correctly.

8. 1. Buttonhole stitch See mechanical adjustment p.17

balance is not correct. “Buttonhole Stitch Blance”.

2. Changing to bar tack See mechanical adjustment p.18

is too early or will not “Bartack Feed of Buttonhole”.

work.

9. Improper 1. The pattern selector is See mechanical adjustment p.19

pattern blocked. "Disengagement of Cam

Followr".

2. The pattern selector will See mechanical adjustment p.19

not select the correct "Disengagement of Cam

pattern. Followr".

Improper

buttonhole

results

SERVICE ACCESS

FACE COVER

TO REMOVE:

1. REMOVE THE SETSCREWS (A).

2. TAKE THE FACE COVER (B) OFF.

TO ATTACH:

1. FOLLOW THE ABOVE PROCEDURE IN REVERSE.

(B)

(A)

SERVICE ACCESS

FRONT COVER

(B)

DIALS

CAP

(C)

(E)

(G)

(F)

TO REMOVE

1. REMOVE THE FACE COVER (SEE PAGE 4), AND EXTENSION TABLE.

REMOVE THE CAP, SETSCREWS (B), (D), (E), (F), (G) AND DIALS.

LOOSEN THE SETSCREW (A), (C).

REMOVE THE FRONT COVER.

TO ATTACH

2. FOLLOW THE ABOVE PROCEDURE IN REVERSE.

(D)

(A)

SERVICE ACCESS

REAR COVER

(A)

TO REMOVE

1. REMOVE THE FACE COVER AND FRONT COVER. (SEE PAGE 4, 5)

2. REMOVE THE SETSCREWS (A), (B), (C), (D) AND (E).

3. LOWER THE PRESSER FOOT LIFTER. REMOVE THE REAR COVER.

TO ATTACH

4. FOLLOW THE ABOVE PROCEDURE IN REVRSE.

(B) (C)

(E) (D)

MECHANICAL ADJUSTMENT

TOP TENSION

TO CHECK:

THE STANDARD UPPER THREAD TENSION SHOULD BE 75 - 90g WHEN PULLING THE

THREAD (COTTON THREAD #50) IN THE DIRECTION OF (B) WITH SETTING THE TENSION

DIAL AT “4”. (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 FACE COVER AND FRONT COVER. (SEE PAGE 4, 5.)

2. TURN THE ADJUSTING NUT (C) IN THE DIRECTION OF (D) WHEN THE UPPER THREAD

TENSION IS TOO TIGHT.

TURN THE ADJUSTING NUT (C) IN THE DIRECTION OF (E) WHEN THE UPPER THREAD

TENSION IS TOO LOOSE.

3. ATTACH THE FRONT COVER AND FACE COVER.

(C)

(E)

(D)

(B)

MECHANICAL ADJUSTMENT

PRESSER BAR HEIGHT AND ALIGNMENT

TO CHECK:

1. RAISE THE PRESSER FOOT LIFTER (A).

2. THE DISTANCE BETWEEN THE PRESSER FOOT (D) AND THE NEEDLE PLATE (E)

SHOULD BE 6.0MM (0.24").

ADJUSTMENT PROCEDURE:

1. REMOVE THE FACE COVER. (SEE PAGE 4.)

2. REMOVE THE SCREWS (B) AND TAKE THE LAMP SOCKET OFF.

3. RAISE THE PRESSER FOOT LEVER AND LOOSEN THE SCREW (C) ON THE PRESSER

BAR HOLDER.

ADJUST THE DISTANCE BETWEEN THE PRESSER FOOT (D) AND THE NEEDLE PLATE

(E) TO 6.0MM (0.24").

4. TIGHTEN THE SCREW (C) SECURELY.

5. TIGHTEN THE SCREWS (B) TO SECURE THE LAMP SOCKET.

6. ATTACH THE FACE COVER.

NOTE: WHEN YOU TIGHTEN THE SCREW (C), MAKE SURE THAT BOTH SIDES OF

THE PRESSER FOOT ARE PARALLEL TO THE FEED DOG SLOTS (F) ON THE

NEEDLE PLATE.

(D)

(E)

(F)

6.0MM

(C)

(A)

(B)

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