Brother 2340CV User Manual [en, es]

Cover Stitch Machine Operation Manual Manual de instrucciones de la máquina de

puntada de recubierto

CONTENTS: ENGLISH

1. Names of parts and their functions ii. Preparation before threading

iii. Threading.....................................................9

iV. Types of stitches.......................................11

Tri-cover stitch Two needle three threads cover stitch

Chain stitch sewing

V. Sewing........................................................15

VI. Maintenance

VII. Machine specifications.............................19

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3 8

INDICE: ESPAÑOL

I. Nombres de las partes y sus funciones ....21

II. Preparación antes del enhebrado III. Enhebrado IV. Tipos de puntadas

Puntada de recubierto triple Puntada de recubierto de

Costura de puntada de cadena..............32

V. Costura Vi. Mantenimiento Vil. Especificaciones de la máquina

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dos agujas con tres hilos

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26 27 29 29

33 37 37

"IMPORTANT SAFETY INSTRUCTIONS"

When using the sewing machine, basic safety precautions should always be followed,

including the following.

"Read all instructions before using."

DANGER “To reduce the risk of electric shock.

1. The sewing machine should never be left unattended when plugged in. Always unplug this sewing machine from the electrical outlet immediately after using and before cleaning.

2. Always unplug before relamping. Replace bulb with same type rated 15 watts.

WARNING -

Do not allow to be used as a toy. Close attention is necessary when the sewing machine is used by or near children.

Use this sewing machine only for its intended use as described in this manual. Use only accessories recommended by the manufacturer as contained in this manual.

Never operate this sewing machine if it has a damaged cord or plug, if it is not working properly, if it has been dropped or damaged, or dropped into water. Return the sewing machine to the nearest authorized dealer or service center for examination, repair, electrical or mechanical adjustment. Never operate the sewing machine with any air openings blocked. Keep ventilation openings of the sewing machine and foot controller free from the accumulation of lint, dust, and loose cloth. Never drop or insert any object into any openings. Do not use outdoors.

Do not operate where aerosol (spray) products are being used or where oxygen is being administered. To disconnect, turn the main switch to the symbol “O” position which represents off, then remove plug from outlet.

9. Do not unplug by pulling on cord. To unplug, grasp the plug, not the cord.

10. Keep fingers away from all moving parts. Special care is required around the sewing machine needle.

11. Always use the proper needle plate. The wrong plate can cause the needle to break.

12. Do not use bent needles.

13. Do not pull or push fabric while stitching. It may deflect the needle causing it to break.

14. Switch the sewing machine to the symbol “O” position when making any adjustments in the needle area, such as threading needle, changing needle, or changing presser foot, and the like.

15. Always unplug the sewing machine from the electrical outlet when removing covers, lubricating, or when making any other user servicing adjustments mentioned in the instruction manual.

16. This sewing machine is not intended for use by young children or infirm persons without supervision.

17. Young children should be supervised to ensure that they do not play with this sewing machine.

To reduce the risk of burns, fire, electric shock, or injury to persons.

CAUTION “ This appliance has a polarized plug (one blade wider than the other) to reduce the

risk of electric shock, this plug is intended to fit in a polarized outlet only one way. If the plug does not fit fully in the outlet, reverse the plug. If it still does not fit. Contact a qualified electrician to install the proper outlet. Do not modify the plug in any way.

When leaving this sewing machine unattended, the main switch of the machine must be switched off or the plug must be removed from the socketoutlet.

FOR USERS IN THE UK, EIRE, MALTA AND CYPRUS ONLY.

If your sewing machine is fitted with a 3 pin non rewireable BS plug then please read the following.

IMPORTANT

If the available socket outlet is not suitable for the plug supplied with this equipment, it should be cut off and an appropriate three pin plug fitted. With alterna tive plugs an approved fuse must be fitted in the plug.

NOTE: The plug severed from the mains lead must be destroyed as a plug with bared flexible cords is hazardous if engaged in a live socket outlet. In the event of replacing the plug fuse, use a fuse approved by ASTAto BS 1362, i.e. carrying the mark, rating as marked on plug.

Always replace the fuse cover, never use plugs with the fuse cover omitted.

When servicing the sewing machine, or when removing covers or changing lamps, the ma chine or the electrical set must be disconnected from the supply by removing the plug from the socket-outlet.

The wires in this mains lead are coloured in accord ance with the following code:

Blue Brown

As the colours of the wiring in the mains lead of this appliance may not correspond with the coloured markings identifying the terminals in your plug, pro ceed as follows.

The wire which is coloured blue must be connected to the terminal which is marked with the letter ‘N’ or coloured black or blue.

Neutral Live

"SAVE THESE INSTRUCTIONS"

This sewing machine is intended for household."

WARNING: DO NOT CONNECT EITHER WIRE TO THE EARTH TERMINAL WHICH IS MARKED WITH THE LETTER ‘E’, BYTHE EARTH SYMBOL

OR COLOURED GREEN OR GREEN AND

YELLOW.

The wire which is coloured brown must be connected to the terminal which is marked with the letter ‘L’ or coloured red or brown.

CONGRATULATIONS ON

CHOOSING THIS COMPACT COVER STITCH MACHINE

Your machine is a high quality, easy-to-use product. To fully enjoy all the features, we suggest that you study this booklet.

if you need more information regarding the use of your machine, your nearest authorized dealer is always happy to be of service. Enjoy yourself!

CAUTION!

WHEN THREADING, REPLACING NEEDLE OR LIGHT BULB, BE SURE TO TURN OFF THE MAIN POWER SWITCH OF THE MACHINE. WHEN THE MACHINE IS NOT IN USE, IT IS RECOMMENDED THAT THE ELECTRIC SUPPLY PLUG IS DISCONNECTED FROM THE WALL SOCKET TO AVOID ANY POSSIBLE HAZARDS.

Notes on the motor

The normal operating speed of this sewing machine is 1,000 stitches per minute, which is quite fast compared to the normal operating speed of 300 to 800 stitches per minute forthe ordinary foot-operated sewing machine. The bearings in the motor are made of a special sintered, oil-impregnated alloy mounted in oil-soaked felt to withstand long hours of continuous operation. Continuous operation of the sewing machine can cause heat to build in the motor area, but not enough to adversely affect its performance. It is important to keep fabric and paper away from the ventilating holes on the back and sides of the machine so air can get to these holes. When the motor is running, sparks can be seen through the ventilating hole in the motor bracket on the side opposite the hand wheel. These sparks are produced by the carbon brushes and the commutator, and are part of the machines normal operation.

CAUTION

WHEN THREADING THE MACHINE, REPLACING A NEEDLE, OR WHEN THE MACHINE IS NOT IN USE, WE RECOMMEND DISCONNECTING THE ELECTRIC SUPPLY PLUG TO AVOID ANY POSSI BLE HAZARDS.

I. Names of parts and their functions

0 Thread tree @ Thread plate ® Presser foot pressure adjustment screw 0 Spool pin 0 Spool cushion 0 Spool support 0 Thread take-up cover 0 Material plate cover 0 Needles 0 Differential feed raito adjustment dial 0 Stitch length adjustment dial 0 Presser foot 0 Front cover 0 Hand wheel 0 Main power switch and light switch 0 Presser foot lifting lever © Spool stand

0 Left needle thread tension dial 0 Center needle thread tension dial 0 Right needle thread tension dial 0 Looper thread tension dial 0 Thread guide 0 Looper 0 Looper release lever 0 Lopper thread take up 0 Foot controller:

XC7359021 (110/120V Area) XC7438321 (220/240V Area) XC7456321 (U.K.) XE0629001 (Australia, New Zealand) XC7438321 (Germany)

Accessories included

(0^

o Soft cover X77871001

O Accessory bag 122991002 0 Tweezers X75902001 O Thread net (4) X75904000

Thread spool cap (4) X77260000

©Spool mat (4) XB1218000

O Cleaning brush X75906001

Hexagonal wrench XB0393001

Needle set: SCHMETZ 130/705H

(90/#14):3pcs. XB1216001

® Special presser foot (LC1) XB1265001 The special presser foot is used when an optional attachment is used.

Powering the machine

Stitch length

NOTE: (For U.S.A. only)

This foot controller can be used for sewing machine model 2340CV.

Turning direction of motor

Opening and ciosing the front cover

Preparation

• Insert the three-pin plug into the socket on the bottom right side of the machine. Insertthe power supply plug into a power outlet.

Main Power and Sewing Light Switch

This switch turns the power and sewing light on or off. To turn on push toward “ - ” mark. To turn off push toward “O ” mark.

® Main Power and Sewing Light Switch

Operation

When the pedal is pressed lightly, the machine runs at a low speed. As the pedal is pressed further, the machine will increase speed. When the pedal is released, the machine stops.

©Foot Controller: Model KD-1902

The motor and hand wheel of this machine turn in a counterclockwise direction (direction of arrow). This is the same direction as an ordinary home sewing ma chine.

©Hand wheel

To change the stitch length, .

(1) Locate the stitch length adjustment dial on the left side

of the machine.

(2) Turn the stitch length adjustment dial forward to

lengthen the stitch to a maximum of 4 mm (5/32 inch). Turn the stitch length adjustment dial backwards to shorten the stitch length to a minimum of 2 mm (5/64 inch).

(3) The normal stitch length setting is 3 mm to 4 mm

(1/8 to 5/32 inch)

Instructions for the differential feed mechanism

This machine is equipped with two sets of feed dogs under the presser foot to move the fabric through the

machine. The differential feed controls the movement of both the front and the rear feed dogs. When set at 1, the feed dogs are moving at the same speed (ratio of 1). When the differential feed ratio is set at less than 1, the front feed dogs move slower than the rear feed dogs, stretching the fabric as it is sewn. This is effective on

lightweight fabric that may pucker. When the differential feed ratio is set at greater than 1, the front feed dogs

move faster than the back feed dogs, gathering the fabric

as it is sewn. This function assists in removing the rippling when serging stretch fabrics.

It is necessary to open the front cover when threading this machine.

• Open the front cover by sliding it to the right and guiding the top toward you.

NOTE:

For your safety, make sure that the front cover is closed when operating the machine.

How to attach and remove the presser foot

• Turn off the main power switch or disconnect the electric supply plug.

(1) Raise the presser foot lever. © (2) Set the needle to its highest position by turning the

hand wheel (© counter clockwise.

(3) Push the button on the presser foot holder and the

standard foot will be released. (3) @

(4) Raise the presser foot farther by pushing the presser

foot lever upward. Then remove the presser foot and store it in a safe location.

(5) Again, raise the presser foot farther by pushing the

presser foot lever upward. Then place a presser foot

CAUTION

Always be sure to turn off the power before carrying out this operation.

just under the presser foot holder ® so that the groove in the bottom of the presser foot holder (g) is aligned and catches the bar on the top of the foot © . Then lower the presser foot lever to attach the foot.

Feed ratio Main feed (rear)

0.7-1.0

1.0

1.0-2.0

r ; )

( ; )

c~~ ; 3

• To adjust the differential feed. (1) Locate the differential feed adjustment lever on the left

side of the machine.

(2) The normal setting is 1.0 on the differential feed

adjustment lever. (3) To set less than 1.0, move the lever back. (4) To set greater than 1.0, move the lever forward.

Differentiai feed (front)

Effect

Material is pulled tight.

Without differential feed.

Material is gath ered or pushed together.

Appiication

Prevents thin mate rials from puckering

Normal sewing

Prevents stretch ma terials from stretch ing or puckering

• An example where adjustment is required

When stretch material is sewn without using the differen tial feed, the material will be wavy.

To make the material more smooth, adjust the feed ratio from 1.0 toward 2.0. (The feed ratio required depends on the elasticity of the material.)

The more elastic the material, the further toward 2.0 the differential feed ratio should be set. Test sew with a scrap of the fabric to find the correct adjustment.

Needle

This machine uses a standard home sewing machine needle. The recommended needle is SCHMETZ 130/705H

(90/#14).

To remove the needle

(1) Turn the main power switch to the OFF position. (2) Turn the hand wheel counter-clockwise by hand until

the needle is at its highest position.

(3) Loosen the needle set screw with hexagonal wrench

and remove the needle.

Presser foot pressure

CAUTION

When sewing thick non-stretchabie materiai such as denim, do not use the differentiai feed as it may damage the fabric.

The pressure of the presser foot can be adjusted by turning the pressure adjustment screw at the top left of this machine. Since this machine has already been adjusted to a pressure suitable for light to medium fabrics, no further adjustment is necessary except when sewing on very heavy or very light materials. Usually, when sewing on very light materials, the presser foot pressure should be loosened. When sewing very heavy materials, the presser foot pres sure should be tightened.

©Pressure adjustment screw ©Less pressure ©More pressure ©Pressure adjustment screw ©(Standard height for medium material)

NOTE:

When front needles are inserted correctly you can see the top of the needle in the window (®) above each needle position.

----------------------------

CAUTION

UAUIIUN --------------------------------

Always be sure to turn off the power before carrying out this operation.

------------------------ CAUTION

---------------------

Do not drop the needle and needle set screw in the machine, otherwise it may be dam

aged.

To insert the needle

(1) Turn the main power switch to the OFF position. (2) Turn the hand wheel until the needle bar is at its

highest position.

(3) Hold the needle with its flat side away from you and

insert it up as far as it will go.

(4) Tighten the needle set screw securely with the hex

agonal wrench.

©Needle set screw ©Tighten ' ©Loosen ©Hexagonal wrench ©Window ©Left needle ©Center needle ©Right needle

NOTE:

Countermeasures for material breakage.

It can reduce the occurrence of material breakage by using SCHIMETZ 130/705H SUK (90/#14) BALL POINT.

II. Preparation before threading

Thread tree

Raise the telescoping thread tree to its highest position. Make sure that the thread holders are in alignment above the spool pins as illustrated left.

Thread spool

The procedure for placing the spool of thread on the spool pin differs according to the shape of the spool.

- Type B ---------------------

If you are sewing with loosely spun nylon thread, we recom

mend that you cover the spool with the net supplied to prevent the thread from slipping off the spool. Adapt the net to the shape of the spool.

Needle position

II. Threading

Needie threading

3)00

0OO

Pass each thread from (3)0© to @00 as shown in this illustration. Pass the thread through the proper thread guide. Slide and hold the thread tension release button to the right, then pass the thread through the tension disc which is in the channel next to the tension adjustment dial. Release the but ton.

CAUTION

Always be sure to turn off the power before carrying out the following operation.

(1) Follow the procedure described below to thread the needle.

Threading the left needle

• Run the thread in the sequence illustrated, following the yellow color and the numbers next to each thread ing point. ((©-©)

Threading the center needle

• Run the thread in the sequence illustrated, following the pink color and the numbers next to each threading point. (O'©)

Threading the right needle

• Run the thread in the sequence illustrated, following the green color and the numbers next to each thread ing point. (O-©)

CAUTION

When needle threading, always thread in this order:

Left needle, center needle and then right needle.

through the eye of the needle.

®®0 Front to back

(2)

(1)Turn off the main power switch for safety.

(2) Set the needle bar in its highest position by turning the

handwheel toward you. Turn the handwheel to find the easiest position for threading.

Looper threading

• Pass each thread from (3) to 0 as shown in this illustration.

• Pass the thread through the proper thread guide.

• Slide and hold the thread tension release button to the right, then pass the thread through the tension disc which is in the channel next to the tension adjustment dial. Release the button.

CAUTION

Always be sure to turn off the power before carrying out the following operation.

(1) Follow the procedure described below to thread the

looper.

1 Open the front cover by sliding to the right and guiding

the top toward you.

2 Run the thread in the sequence illustrated, following

the blue color and the numbers next to each threading

point. (©-©)

and then run the thread through ® and 0.

4 With about 10 cm (4 inch) of thread pulled through the

eye of the needle, as shown by ® in the illustration, move the looper back in the direction of the arrow to lock it.

5 Close the front cover.

IV. Types of stitches

Tri-cover stitch (Three needies four threads cover stitch)

Use four threads, three front needles and the looper thread to sew a 6 mm (15/64 inch) cover stitch. Use: Ideal for hemming and for decorative stitching.

Threading

• For details on threading the machine, refer to “III. Threading” on page 9 to 10. < Threading the left, center and right needle > < Threading the looper >

Tension adjustments

(1) First, set each thread tension dial to the number

shown below.

Left needle dial

(yellow)

Right needle dial

(green)

4 4

CAUTION

Make sure that the thread is properly seated in the tension discs by holding the tension release button to the right while passing the thread through the tension discs.

(2) Sew a test stitch. (Refer to “V. Sewing” on page 15.) (3) Adjust the tension of each thread according to the

condition of the stitch.

Balanced tension

▲ The needle thread sews a straight seam on the top

1 side and the looper thread forms loops on the under

Stitching direction side of the fabric.

Center needle dial

(pink)

Looper needle dial

(blue)

NOTE:

When using thick thread, such as decorative thread, as the looper thread, run the thread as shown in the illustration.

Do not run the thread through ®.

1 1

^ 1 1 1

^ 1 1 1-

Needle thread is too loose

Turn the needle thread adjusting dial to a higher number. Or turn the looper adjusting dial to a lower number for looser tension.

Needle thread is too tight

Turn the needle thread adjusting dial to a lower number. Or turn the looper adjusting dial to a higher number for tighter tension.

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