Janome Jubilee 60507 Manuale utente

SERVICE MANUAL

PARTS LIST

MODEL: Jubilee 60507

CONTENTS

What to do when.................................................................................................................1 - 3

Service Access (1) Face plate................................................................................................. 4

Service Access (2) Base cover................................................................................................ 5

Service Access (3) Front cover................................................................................................ 6

Service Access (4) Rear cover ................................................................................................ 7

Adjusting Thread Tension ........................................................................................................ 8

Adjusting Presser Foot Height and Alignment......................................................................... 9

Adjusting Needle Swing......................................................................................................... 10

Adjusting Needle Drop Position............................................................................................. 11

Adjusting Needle to Hook Timing .......................................................................................... 12

Adjusting Needle Bar Height ................................................................................................. 13

Adjusting Clearance between Needle and Hook Point .......................................................... 14

Adjusting Backlash between Hook Drive Gear and Lower Shaft Gear.................................. 15

Adjusting Feed Dog Height.................................................................................................... 16

Adjusting Feed Balance......................................................................................................... 17

Adjusting Buttonhole Feed Balance ...................................................................................... 18

Adjusting Buttonhole Zero Feed ............................................................................................ 19

Replacing Motor and Adjusting Motor Belt Tension ............................................................... 20

PARTS LIST ...................................................................................................................21 - 41

What to do when

CONDITION CAUSE HOW TO FIX REFERENCE

1. Skipping 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 fabric. Use a #11 blue tip needle.

6. Presser foot pressure Adjust the presser bar

is too weak. level to make the

pressure stronger.

7. Inappropriate needle See mechanical adjustment P.13

bar height. “Needle Bar Height”.

8. Inappropriate needle See mechanical adjustment P.12

to hook timing. “Needle to Hook Timing”.

9. Inappropriate needle See mechanical adjustment P.14

to hook clearance. “Clearance between Needle

and Hook Point”

2. Fabric not 1. Presser foot pressure Adjust the presser bar

moving is too weak. level to make the

pressure stronger.

2. Incorrect feed dog height. See mechanical P.16

adjustment “Feed Dog Height.”

3. Feed dog is in down position. Raise the feed dog level.

4. Thread on bottom side Make sure to bring

of fabric is jammed up. both needle and bobbin

thread under the foot

when starting sewing.

5. Feed dog teeth are worn. Change the feed dog.

CONDITION CAUSE HOW TO FIX REFERENCE

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

upper too fast.

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

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

4. Upper thread tension is Adjust the upper thread tension P.8

too strong. correctly.

5. Needle size is inappropriate Use appropriate needle

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. Breaking 1. Incorrectly threaded Thread bobbin correctly.

bobbin bobbin.

2. Too much thread is Adjust the position of

around on the bobbin. bobbin winder stopper.

3. Lint is stuck inside the Clean the shuttle.

bobbin holder.

4. Thread quality is Change to a high quality

too low. sewing thread.

5. Thread is jamming Remove the jamming

around the bobbin. thread.

5. Needle 1. Needle is hitting the See mechanical P.11

breaks needle plate. adjustment “Needle Drop

Position.”

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

3. Needle is hitting the See mechanical P.14

shuttle. adjustment “Needle

clearance to shuttle.”

4. The fabric moves while See mechanical P.10

the needle is piercing adjustment “Needle Swing.”

it, or the needle zigzags

while in fabric.

5. Fabric is being pulled too Guide the fabric gently

strongly while sewing. while sewing.

thread

CONDITION CAUSE HOW TO FIX REFERENCE

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

operation Shuttle hook gear and adjustment “Backlash

lower shaft gear is too (lower shaft gear).”

great.

2. Lower shaft gear is Eliminate the looseness.

loose.

3. Inappropriate belt See mechanical P.20

tension. adjustment “Motor

belt tension.”

4. Not enough oil Oil all moving parts.

5. Upper shaft is loose Eliminate the looseness

7. Deformation 1. Inappropriate feed See mechanical P.17

pattern balance. adjustment “Stretch

stitch balance.”

2. Inappropriate zigzag See mechanical P.10

synchronization. adjustment “Needle

Swing.”

3. Upper thread tension See mechanical

is too strong. Adjustment “Top tension.”

8. Improper 1. Buttonhole stitch See mechanical P.18, 19

balance is not correct. adjustment “Buttonhole

stitch balance.”

Setscrew

Face plate

Service Access (1)

Cap

• Face plate

Remove the cap and setscrew. Remove the face plate.

Attach the face plate with the setscrew.

Attach the cap.

• Base cover

Remove the setscrews (6 pcs.) and remove the base cover.

Shift the drop feed lever in the direction of the arrow. Attach the base cover with setscrews.

Setscrew

Base cover

Service Access (2)

Setscrew

Drop feed lever

Hook

Setscrew (C)

(two off)

• Front cover

Remove the face plate and base cover (see pages 4 and 5).

Pull out the pattern selector dial and stitch length dial.

Remove the setscrews (A), (B) and (C) (two off).

Remove the front cover, unlocking all the hooks.

Follow the above procedure in reverse.

Service Access (3)

Pattern selector dial

Hooks

Setscrew (A)

Setscrew (B)

Front cover

Stitch length dial

Hook

Service Access (4)

Front cover

Setscrew (C)

Setscrew (B)

Setscrew (D)

Setscrew(A)

Setscrew (B)

Presser foot lifter

(1)

(2)

(3)

• Rear cover

Remove the face plate, base cover and front cover (see pages 4 and 6).

Remove the setscrews (A), (B), (C) and (D).

Lower the presser foot lifter and pull away the rear cover from the machine, clearing the parts(1), (2)

and (3), in this order.

Follow the above procedure in reverse.

• The standard tension should be 75 - 90 grams measured with a white polyester thread #50

being pulled in the direction of the arrow, when the tension dial is set at "4".

Remove the front cover (see page 6).

Set the tension dial at "4".

If the tension is too tight, turn the adjusting dial in the direction (A).

If the tension is too loose, turn the adjusting dial in the direction (B).

Check the tension again and attach the front cover.

Adjusting Thread Tension

(B)

(A)

Pull the thread in this direction at approx.

110 mm per second.

White polyester thread #50

Adjusting

dial

Adjusting dial

Indice

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