ELNA 6004 User manual

Brand: ELNA

Model: 6004

Category: Sewing machines

Type: User manual

ELNA 6004

ELNA 6004 is a sewing machine with a wide range of features, making it a versatile choice for both beginners and experienced sewers. Some of its key capabilities include:

Variety of stitches: The ELNA 6004 offers a wide selection of stitches, including basic stitches, decorative stitches, and stretch stitches. This allows you to create a variety of projects, from simple garments to elaborate quilts.
Easy threading: The ELNA 6004 is designed for easy threading, with a clear threading path and an automatic needle threader. This makes it quick and easy to get started sewing.

ELNA 6004

ELNA 6004 is a sewing machine with a wide range of features, making it a versatile choice for both beginners and experienced sewers. Some of its key capabilities include:

Variety of stitches: The ELNA 6004 offers a wide selection of stitches, including basic stitches, decorative stitches, and stretch stitches. This allows you to create a variety of projects, from simple garments to elaborate quilts.
Easy threading: The ELNA 6004 is designed for easy threading, with a clear threading path and an automatic needle threader. This makes it quick and easy to get started sewing.

Service Manual

September 1997 Printed in Switzerland 395 901- 42

Elna International Corps. SA 6004 Service manual

CONTENT

Disassemble and assemble the external parts

Top cover and Face Plate 1

Base and Bed Cover 2

Belt Cover 3

Front Panel 4

To Replace and Adjustment

Presser Bar Height 5

Needle Centering 6

Needle Bar height 7

Hook and Feed timing 8

Clearance between Needle and Hook 9

Backlash of hook drive gear and lower shaft gear 10

Feed Dog height 11

Upper Shaft Shield Plate position 12

Upper Thread Tension 13

Stretch Stitch Feed balance 14

Needle Threaded Plate 15

Buttonhole Lever and Sensor 16

To replace electrical components

Circuit Board A 17

Circuit Board C 18

Circuit Board C and Fuse 19

DC Motor 20

Transformer 21

Machine Socket 22

Buttonhole Lever 23

Circuit Board K and F 24

Buttonhole Sensor 25

Wiring Diagram 26

General Function Check and Test Program 27-30

Content

Elna International Corps. SA 6004 Service manual

TOP COVER AND FACE PLATE

TOP COVER

To remove :

2 Remove the tree set screws A and B and the Top cover.

To attach :

4 Attach the top cover with the tree screws A and B

FACE PLATE

To remove :

2. Remove the two set screws C and face plate

To attach

4. Attach the face plate with two set screws C.

Page 01

Elna International Corps. SA 6004 Service manual

BASE AND BED COVER

BASE

To remove :

2 Remove six set screws A and base.

To attach :

4 Attach the bsase with six set screws A

BED COVER

To remove :

2 Move the fed drop lever to the left, then remove the two set screws B.

3 Remove the bed cover

To attach

5 Move the feed drop lever to the left and attach the bed cover with two set screws B.

Page 02

Elna International Corps. SA 6004 Service manual

BELT COVER

To remove :

1 Remove two set screws A and belt cover

To attach

1 Attach the belt cover with two set screws A .

Page 03

Elna International Corps. SA 6004 Service manual

FRONT PANEL

To remove :

1. Remove the top cover, belt cover and bed cover (see pages 1, 2 and 3).

2. Remove set screw A and loosen set screws B, C, D, E, F and G.

3. Unplug five (5) connectors and remove the front panel.

H = Connector for circuit board A.

I = Connector for buttonhole sensor

J = Connector for thread tension

K = Connector for circuit board A

To attach

4 Insert five (5) connectors and attach the front panel

5 Tighten the screws.

Page 04

Elna International Corps. SA 6004 Service manual

PRESSER BAR HEIGHT

The standard presser bar height is 6.0 mm between the bottom surface of the foot and

needle plate when presser bar lifter is in up position

1. Open the face plate

2. Raise the presser foot, loosen the presser bar bracket screw A and adjust the height (6.0

mm)

3. Check if the presser foot is parallel to thé openings for thé feed dog in the needle plate. If

not, adjust it

4. Tighten thé presser bar bracket screw while holding thé presser bar so that foot remains

parallel to thé openings

5. Close thé face plate.

Page 05

Elna International Corps. SA 6004 Service manual

NEEDLE CENTRING

When selecting pattern 10, the needle should be in center position of needle slot

in the needie plate, or when the needie swing is in maximum zigzag width, the distance between

both sides of needie slot in the needie plate and the needie positions should be equal.

If not, adjust as follows:

1. Turn on the power switch

2. Select pattern 10 or pattern 14 at maximum zigzag width

3. Loosen the set screw A

4. Turn the eccentric pin B to adjust the needie centering

5. Tighten the set screw A

Note: Check the hook timing after this adjustment

Page 06

Elna International Corps. SA 6004 Service manual

NEEDLE BAR HEIGHT

A regular needie #14 should be used for this adjustment

The distance between the upper edge of needie eye and the tip of shuttle hook should be in the

range of 1.6 - 2.0 mm when the tip of shuttle hook meets the right side of the needie as the

needle is moved up from its left and lowest position by turning the handwheel toward you.

1. Remove the needie plate and bobbin holder

2. Turn on the power switch and select pattern (no. 11)

3. Turn the handwheel toward you until tip of shuttle hook meets the right side of the needie

4. Loosen the needie bar connecting stud set screw A

5. Adjust the height of the needie bar by moving the needie bar upward or downward without

turning it. (Make sure thé needie setting groove of the needie bar is in thé front)

6. Tighten thé set screw A

7. Insert the bobbin holder and attach the needie plate

Page 07

Elna International Corps. SA 6004 Service manual

HOOK AND FEED TIMING

A regular needie B #14 should be used for this adjustment. Select pattern 10. Turn thé

handwheel toward you to position thé needie bar from its lowest position, moving up

approximately 2,30 mm to 2,60 mm. At this position, the tip of the hook should meet the right

side of the needie.

1. Remove thé needie plate and thé bobbin holder

2. Turn on the power switch and select pattern 10

3. Remove thé top cover, belt cover and bed cover. (See pages 1, 2 and 3)

4. Turn the handwheel toward you and set the needle bar to its lowest position

5. In this condition, the peg C on thé feed lifting cam should be in its lowest position

If not.

Loosen the set screws A of upper shaft belt wheel. With the needie bar in its lowest position,

hold the handwheel in place while turning the upper shaft belt wheel to position the peg C on

the feed lifting cam in its lowest position.

Tighten the set screws A of upper shaft belt wheel.

6. Set the needle bar to its lowest position, fit the timing gauge 101360 in contact with the

needle bar cradle, then loosen one of the lower shaft hook gear screw D.

7. Turn the balance wheel slowly forwards until the gauge butts. In this position, the hook

should be between the 2 positions illustrated

8. Unscrew the second screw of lower shaft hook gear and adjust the position of the hook.

9. Tighten the screws D, turn balance wheel several times and recheck the timing and refit the

machine.

Page 08

Elna International Corps. SA 6004 Service manual

CLEARANCE BEWEEN NEEDLE AND HOOK

The clearance between needle and shuttle hook should be -0.10 mm to +0.05 mm. If not,

adjust as follows:

1. Remove the needie plate and bobbin case

2. Replace the needie with master needle D

3. Turn on the power switch and select pattern 14

4. Loosen the set screws B and slightly loosen the hinge screw A

5. Turn the handwheel and adjust the clearance between the master needle and the point of

shuttle hook in the left and right needle positions to -0.1 mm to +0.05 mm by moving the

shuttle hook set plate C up or down.

6. Tighten the set screws A and B

7. Replace the master needie D with the needle

8. Insert the bobbin case and attach the needle plate

Page 09

Elna International Corps. SA 6004 Service manual

BACKLASH OF HOOK DRIVE GEAR LOWER SHAFT GEAR

The backlash of gears should be smooth and should be less than 0.8 mm when the tip of shuttle

hook is within the width of the feed dog as shown below.

1. Remove the bed cover. (See page 2)

2. Loosen the hexagon socket screw

3. If the backlash is too much, tum the lower shaft bushing in direction A

If the backlash is not enough, tum the lower shaft bushing in direction B

4. Tighten the hexagon socket screw

5. Attach the bed cover

Note: After adjusting the backlash, be sure to check and adjust the “HOOK TIMING” and the

“FEED DOG HEIGHT”. (See pages 8 and 11).

Page 10

Elna International Corps. SA 6004 Service manual

FEED DOG HEIGHT

When pressure adjusting lever is at «3 » A and the presser foot B is lowered, the highest

position of the feed dog C should be 0.80 mm to 0.90 mm from the surface of the needle plate

1. Set the pressure adjusting lever A at "3 " and lower the presser foot B

2. Tum on the power switch.

3. Tum the handwheel toward you to get the highest position of feed dog C.

4. Remove the bed cover

5. Loosen the set screw E and nut G

6. Adjust the feed dog height to 0.80 mm to 0.90 mm by tuming adjusting screw F.

7. Tighten the nut G and set screw E

8. Attach the bed cover.

Page 11

Elna International Corps. SA 6004 Service manual

UPPER SHAFT SHIELD PLATE POSITION

When the machine is set for zigzag stitching, the needle should start to swing 6.3 mm to 7.5 mm

above the surface of the needle plate.

1. Remove top cover (See page 1)

2. Turn on the power switch and select pattern (14)

3. Slowly turn the handwheel toward you until the needle starts to swing if higher than 7.5 mm,

loosen the set screw C and turn the upper shaft shield plate F in direction A If lower than

6.3 mm, loosen the set screw C and turn the upper shaft shield plate F in direction B

4. Push the upper shaft shield plate F as close as possible to the left side of the upper shaft

sensor D slots. (It should not touch the upper shaft sensor.) Then tighten the set screw C

5. Turn the handwheel toward you and check for proper swing.

6. Attach the top cover (See page 1).

Page 12

Elna International Corps. SA 6004 Service manual

UPPER SHAFT SHIELD PLATE POSITION

When the machine is set for zigzag stitching, the needle should start to swing 6.3 mm to 7.5 mm

above the surface of the needle plate.

1. Remove top cover (See page 1)

2. Turn on the power switch and select pattern (14)

3. Slowly turn the handwheel toward you until the needle starts to swing

If higher than 7.5 mm, loosen the set screw C and turn the upper shaft shield

plate F in direction A

If lower than 6.3 mm, loosen the set screw C and turn the upper shaft shield plate F in direction

4. Push the upper shaft shield plate F as close as possible to the left side of the upper shaft

sensor D slots. (It should not touch the upper shaft sensor.) Then tighten the set screw C

5. Turn the handwheel toward you and check for proper swing

6. Attach the top cover (See page 1).

Page 13

Elna International Corps. SA 6004 Service manual

STRETCH STITCH BALANCE

When pattern "8" is sewn with the feed balancing dial D at the normal setting mark (►) the

sewn pattern should be as indicated in the mark 0 in the following figure.

1. Set the adjustable pattern mode.

(Turn on the power switch while pressing the reverse button. Choose pattern 8

within 2.5 seconds. Display screen should read "CHECK PATTERN 8").

2. Set the feed balancing dial at normal setting mark (►)

3. Depress the controller. (Eight patterns "8" will be sewn and stop automatically).

4. Remove the base. (See page 2).

5. Adjust the stretch stitch feed balance by turning the adjusting screw D in direction A or B.

6. Attach the base (See page 2)

Note: If you know the position of adjusting screw C, this adjustment can al so be made by

removing only the oblong metal plate on the base cover.

Page 14

Elna International Corps. SA 6004 Service manual

NEEDLE THREADER PLATE

When needle threader plate is broken or bent, replace it in the following manner:

To replace:

1. Turn the handwheel toward you until the needle bar reaches its highest position and lower

the needle threader knob as far as it will go.

2. Loosen the set screw B and replace needle threader plate (Fig. 1).

3. To adjust:

4. If the hook touches the right side or left side of needle eye, loosen set screw A and adjust

the needle threader plate (Fig. 2).

5. If the hook touches the tap or bottom of needle eye, loosen set screw D and adjust the

position set plate (Fig. 3).

Page 15

Elna International Corps. SA 6004 Service manual

BUTTONHOLE LEVER AND SENSOR

When replacing the BH lever or necessitating a modification, adjust thE BH lever as follows:

BUTTONHOLE LEVER

1. Fasten the automatic buttonhole foot R

2. Push forward the buttonhole sole and adjust a clearance of 2,9 mm between the spring

holder C and slider B (use for this adjustment the sewing guide from the accessories box)

3. Loosen the set screw A and move the buttonhole lever guide D. The buttonhole lever E

should touch slightiy the spring holder C.

4. Tighten the set screw A.

BUTTONHOLE SENSOR

1. Tum the power switch on while pressing the reverse button. Then press BH1 at once

«Sensor Check H or L » appears on the screen.

2. Lower the buttonhole lever E. There should by a clearance of 1,6 mm between the slider B

and spring holder C.

3. Loosen the set screw G and move the base plate F from the right to left slowly. When the

screen message changes from «Sensor L » to « Sensor H » tighten the set screw G.

4. When the clearance between the spring holder C and slider B is:

1,4 mm « Sensor Check H » appears on thé screen

1,8 mm « Sensor Check L » appears on thé screen

Note: We recommand to sew test a few buttonholes.

Page 16

Elna International Corps. SA 6004 Service manual

CIRCUIT BOARD A

To remove

1. Remove thé front panel unit (see page 4)

2. Unpiug thé seven (7) connectors from circuit board A

3. Remove tree (3) set screws and remove thé circuit board A

To attach

1. Attach thé circuit board A with three (3) set screws

2. Insert ail seven (7) connectors

3. Attach thé front panel unit (see page 4)

A = CONNECTOR BASE E = UPPER SHAFT SENSOR

B = MAIN MOTOR F = LAMP SOCKET

C = STEP MOTOR ZIGZAG G = CIRCUIT BOARD C

D = STEP MOTOR FEED H = CIRCUIT BOARD A

Page 17

Elna International Corps. SA 6004 Service manual

CIRCUIT BOARD C

To remove

1. Remove the front panel (see page 4).

2. Loosen screws A, B, C and D, and remove set screw E and F.

3. Remove the rear cover.

4. Unplug the four (4) connectors and remove set screws G

5. Remove circuit board C

To attach

6. Attach the circuit board C with three (3) screws and insert the connectors

7. Attach the rear cover with six (6) set screws.

8. Attach the front panel unit (see page 4).

A = Circuit Board A K = Transformer (primary)

M = Machine socket (primary) 0 = Transformer (secondary)

Page 18

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ELNA 6004 User manual

Brand: ELNA

Model: 6004

Category: Sewing machines

Type: User manual

ELNA 6004

ELNA 6004 is a sewing machine with a wide range of features, making it a versatile choice for both beginners and experienced sewers. Some of its key capabilities include:

Variety of stitches: The ELNA 6004 offers a wide selection of stitches, including basic stitches, decorative stitches, and stretch stitches. This allows you to create a variety of projects, from simple garments to elaborate quilts.
Easy threading: The ELNA 6004 is designed for easy threading, with a clear threading path and an automatic needle threader. This makes it quick and easy to get started sewing.

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ELNA 6004 User manual

ELNA 6004 User manual

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