Janome MEMORY CRAFT 9000 User manual

1
SERVICING MANUAL

2
TABLE OF CONTENTS
To change the face plate and top cover ..................................................................................3
To change the belt cover unit...................................................................................................4
To change the bed cover unit ..................................................................................................5
To change the base unit...........................................................................................................6
To adjust the needle position ...................................................................................................7
To adjust the needle bar height ...............................................................................................8
To adjust the hook timing.........................................................................................................9
To adjust the upper shaft shield plate position ......................................................................10
To adjust the needle thread tension....................................................................................... 11
To adjust the tension release mechanism for knee lifter .......................................................12
To change the threader plate and adjustment .......................................................................13
To change front panel (“a” board unit) 1 ................................................................................14
To change printed circuit board (“a” board unit) 2 .................................................................15
Drawing for “a” board connectors (front panel complete unit)...............................................16
To change board c and fuse ..................................................................................................17
To change dc motor and belt tension adjustment..................................................................18
To change the transformer.....................................................................................................19
To change the receptacle (machine socket unit)...................................................................20
To change the LCD unit .........................................................................................................21
To adjust presser foot sensor (1)...........................................................................................22
To adjust presser foot sensor (2)...........................................................................................23
To adjust bobbin thread sensor .............................................................................................24
To replace the presser bar sensor to remove........................................................................25
To adjust the buttonhole lever................................................................................................26
To change the buttonhole lever (unit) to remove ...................................................................27
To change buttonhole sensor unit to remove........................................................................28
To adjust the feed dog up/down function...............................................................................29
To adjust the knee lifter position ............................................................................................30

3
TO CHANGE THE FACE PLATE UNIT AND TOP COVER UNIT
FACE PLATE UNIT
TO REMOVE
1. Remove the two screws, and remove the face plate.
TO ATTACH
2. Tighten the two screws slightly, and attach the face plate.
3. Close the face plate, and check the unevenness between The face plate and arm. Tighten
the screws securely.
4. Check if the face plate opens and closed smoothly. Adjust the position of the face plate
spring if necessary.
TOP COVER UNIT
TO REMOVE
1. Remove the two screws A and raise the handle. Then remove screw B.
2. Close the top cover and raise the handle. Then pull out the top cover unit in the direction
of the arrow.
TO ATTACH
3. Raise the handle and insert the top cover unit from the rear side.
4. Attach the top cover unit by tightening the two screws A and B.

4
TO CHANGE THE BELT COVER UNIT
TO REMOVE
1. Loosen the screw A and remove screws B, C and the washer.
2. Loosen the screw D completely, and remove the belt cover unit.
TO ATTACH
3. Insert the belt cover in the front panel.
4. Replace screws A, B. C (with washer) and screw D.

5
TO CHANGE THE BED COVER UNIT
TO REMOVE
1. Remove the base cover (see page 6).
2. Remove the two screws A, and remove the base lid.
3. Remove the two screws B, and remove the bed cover unit. Then pull out the connectors
from the connector supporter and disconnect them.
TO ATTACH
4. Follow the above procedure in reverse.
NOTE: Set the drop lever as shown below. Make sure that you connect the plug before
replacing the bed cover.

6
TO CHANGE THE BASE UNIT
TO REMOVE
1. Remove the base cover.
2. Pull the connectors for the X-axis and Y-axis motors from “A” board.
3. Remove the 4 screws and the base unit.
TO ATTACH
4. Follow the above procedure in reverse. Check the position of feed dog “UP and DOWN”.
NOTE:
1) Set The base unit that the right side of knee lifter link (4) claw should match the knee lifter
plate on the base unit (see page 30).
2) The carriage plate (unit) is not included the base unit (see page 29).

7
TO ADJUST THE NEEDLE POSITION
When straight stitch #2 is selected, the needle should be at the center hole of the needle plate.
When the zigzag stitch is selected with the zigzag width set to the maximum (7.0), the
clearance between the side of the needle and the outer edges of the left and right needle plate
holes should be 0.2 mm or more.
1. Remove the top cover unit. Select straight stitch #1, and turn the hand wheel toward you to
bring the needle bar to the lowest position (see page 8).
2. Loosen the setscrew, and move the zigzag rod left or right to set the needle at the center
of hole of the needle plate. Then tighten the setscrew.
3. Select the zigzag stitch #8, and set the zigzag width to the maximum (7.0).
4. Turn the hand wheel toward you, and check if the clearance between the side of the needle
and the edge of hole of the needle plate at the left and right needle position is 0.2 mm or
more.
5. Attach the top cover unit (see page 3).

8
TO ADJUST THE NEEDLE BAR HEIGHT
The needle bar height means the distance between the upper edge of the point of hook and the
upper edge of the needle eye when the point of the hook meets the right side of the needle in
the upward travel of the needle bar from the lowest position with stitch pattern #2 ( )
selected.
The standard needle bar height is 1.8±0.2 mm.
1. Remove the needle plate and bobbin holder.
Turn on the power switch and select stitch pattern #2 ( ).
2. Press stitch length/ stitch width key ( ) and set the needle position to 0.0 on the touch
panel.
3. Turn the hand wheel toward you until the point of the hook meets the right side of the
needle.
4. Insert a hexagonal screwdriver through the work hole in the front bracket, and loosen the
setscrew with it.
5. Move the needle bar up and down to adjust its height.
6. Tighten the setscrew, placing the needle setting groove of the needle bar on the front.
7. Make sure that the point of the needle does not hit with the bottom of the hook race, when
turning the hand wheel.
8. Insert the bobbin holder and attach the needle plate.

9
TO ADJUST THE HOOK TIMING
When pattern #2 ( ) is selected, the amount of ascending travel of the needle bar from its
lowest position to the position where the tip of the rotary hook exactly meets the right side of
the needle should be 3.25 to 3.55 mm.
1. Remove the belt cover, bed cover, base cover and base lid (see page 4, 5, 6).
2. Turn on the power switch and select pattern #2 ( ).
3. Press the STITCH LENGTH / STITCH WIDTH key ( ) and set the needle position to 0.0
on the touch panel.
4. Turn the hand wheel toward you, and set the needle bar to the lowest position.
5. In this condition:
•If the setting mark on the feed lift cam is right under the center of the lower shaft (Fig. 1),
loosen the two setscrews on the lower shaft gear (Fig. 2).
•If the setting mark is not right under it, loosen the two setscrews on the lower shaft timing
gear (Fig. 3).
6. Raise the needle bar 3.4 (± 0.15 mm) from the lowest position.
7. Turn the lower shaft gear until the point of the hook meets with the right side of the needle,
and tighten the two set screws on the lower shaft gear or the lower shaft timing gear.
8. Attach the belt cover, bed cover, base cover and base lid (see page 4, 5, 6).

10
TO ADJUST THE UPPER SHAFT SHIELD PLATE POSITION
NOTE: When the machine is set for zigzag stitching, the needle should start to swing 7.0 to
8.2 mm above the surface of the needle plate.
1. Remove the top cover unit.
2. Turn on the power switch. Then select zigzag pattern #8 (see page 8).
3. Turn the hand wheel toward you slowly with your hand until the needle starts to swing.
(A) If higher than 8.2 mm, loosen the setscrew and turn the upper shaft shield plate in
direction A.
(B) If lower than 7.0 mm, loosen the setscrew and turn the upper shaft shield plate in
direction B.
4. Push the upper shaft shield plate as far as possible to the left. (It should not touch the
upper shaft sensor.) Then tighten the setscrew.
5. Turn the hand wheel toward you, and check the start point of needle swing. Attach the top
cover unit (see page 3).

11
TO ADJUST THE NEEDLE THREAD TENSION
1. Turn on the power switch, select the pattern #9 ( ) and press the S/S key to turn the
hand wheel 2 to 3 rotations.
2. Open the face plate and adjust the thread tension with a screwdriver in the direction of:
A to looser the tension.
B to tighter the tension.
3. Close the face plate.
NOTE: Check that the auto-tension is set ‘AUTO” when “ADJ” key is pressed on the touch
panel.

12
TO ADJUST THE TENSION RELEASE MECHANISM FOR KNEE LIFTER
When the presser foot lifter is raised, the tension disc supporter should move by approx.
0.8 mm before adjusting the tension release mechanism for the knee lifter.
1. Remove the top cover unit (see page 3).
2. Lower the presser foot lifter, raise the needle bar to its highest position, attach the foot (A)
and lower the presser foot.
(Make sure the feed dog is at the highest position.)
3. Loosen screw.
4. Adjust the clearance between the thread releasing lever and pressure drive arm to
between 0.01 - 0.80 mm.
5. Attach the top cover unit.

13
TO CHANGE THE THREADER PLATE AND ADJUSTMENT
TO REMOVE
1. Raise the needle to its highest position and lower the threader knob to its lowest position.
2. Loosen the screw and remove the threader plate. (Fig. 1)
TO ADJUST
NOTE: Use #11 needle to adjust the threader plate position.
3. If the hook of the threader plate touches left or right side, loosen the screw and adjust the
hook position. (Fig. 2)
4. If the hook of the threader plate touches the top or bottom side of the needle hole, loosen
the screw and adjust the hook position. (Fig. 3)

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TO CHANGE FRONT PANEL (“A” BOARD UNIT) 1
TO REMOVE
1. Remove top cover, belt cover and bed cover (see page 3, 4, 5),
2. Disconnect the LCD connector from inverter and remove it from cord guide.
3. Remove screw A and loosen screws B, C, D.
4. Pull out 17 connectors form the printed circuit board (“A” board) and printed circuit board
(“F” board).
Remove the front cover unit.
NOTE: Pull out the LCD connector at the beginning to prevent damages.
TO ATTACH
5. Follow the above procedure in reverse.
NOTE: After attaching the front cover (“A” board unit), shift the bobbin winder spindle to check
the micro switch movement.

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TO CHANGE PRINTED CIRCUIT BOARD
(“A” BOARD UNIT) 2
TO REMOVE
1. Remove front panel (see page 14).
2. Disconnect the LCD and the touch panel flat cable and “F” board connector from “A” board
unit.
3. Remove 6 screws to disconnect the printed circuit board “A” and card guide.
TO ATTACH
4. Insert the card guide boss to the rounded hole of card connector until connected. Then
attach to “A” board.
5. Attach the printed circuit board “A” with 6 screws and insert the 2 flat cables to the
connector, then push down the clamp.
(Make sure the inject button should be positioned at the front cover hole.)
6. Connect “F” board.
7. Attach the front panel unit.
NOTE: Adjust the (adjustment of touch panel) when the printed circuit board “A” is changed.
Do not touch the connecting part of the flat cable with your finger:
LCD flat cable should be inserted between the “A board unit and LCD board as shown
below.

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DRAWING FOR “A” BOARD CONNECTORS (FRONT PANEL COMPLETE UNIT)
A Buttonhole sensor N Thread tension stepping motor
B Pressure sensor O Zigzag width stepping motor
C Thread tension sensor P Feed stepping motor
D LCD module Q X axis stepping motor for embroidery
E Position sensor R Y axis stepping motor for embroidery
F Inverter
G Bobbin thread sensor
H Feed dog up/down switch
I Lamp switch
J Bobbin thread detector solenoid
K Printed circuit board C
L Receptacle (Machine socket unit)
M DC motor
TO CHANGE BOARD C AND FUSE
TO REMOVE
1. Remove the base unit and slide the base (see page 6).
2. Loosen the three setscrews.
3. Unplug the 4 connectors.

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TO ATTACH
4. Follow the above procedure in reverse.
5. Attach the base unit. (Check the feed dog up/down position with “ADJ” key after attaching
the base unit.)
TO CHANGE THE FUSE
6. After remove the board “C” case unit, remove two setscrews to pull out the printed circuit
board “C”.
7. Replace the fuse in the fuse holder on board “C”.
•If Fuse Fl (125V-2.SA) is blown ......... transformer or board “C” is damaged.
•If Fuse F2 (250V-3.OA) is blown........ too much power on the DC motor when the upper
shaft, lower shaft or hook race is tight.

18
TO CHANGE DC MOTOR AND BELT TENSION ADJUSTMENT
TO REMOVE
1. Remove the belt cover (see page 4).
2. Pull out the plug connector from “A” board unit and remove 2 screws. Then remove the
lamp switch fixing plate.
3. Pull out the motor connector from “A” board unit and remove 2 screws. Then remove the
DC motor unit.
TO ATTACH
4. Pass the motor cord under the arm lib, then attach the motor with 2 screws temporary as
shown below,
5. Set the motor unit with the motor belt. Make sure the belt tension should be set as shown
below.
6. Attach the lamp switch fixing plate with 2 screws.
7. Insert the connectors to the “A” board unit.
8. Attach the belt cover.

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TO CHANGE THE TRANSFORMER
TO REMOVE
1. Remove the front panel (board A unit) (see page 14).
2. Remove the cord guide (see page 7) and the DC motor (see page 18).
3. Remove two connectors of transformer from C board case unit.
4. Remove the three screws and pull out the transformer.
TO ATTACH
5. Follow the above procedure in reverse.

20
TO CHANGE THE RECEPTACLE (MACHINE SOCKET UNIT)
TO REMOVE
1. Remove the belt cover (see page 4).
2. Cut the cord binder.
3. Pull out the connectors from board A unit and board “C” case unit.
4. Remove two set screws and change the receptacle (machine socket unit).
TO ATTACH
5. Follow the above procedure in reverse.