Brother 2340CV User Manual
Cover Stitch Machine Operation Manual
Manual de instrucciones de la máquina de
puntada de recubierto
CONTENTS: ENGLISH
I. Names of parts and their functions ............. 3
II. Preparation before threading ..................... 8
III. Threading ..................................................9
IV. Types of stitches ..................................... 11
Tri-cover stitch .............................................11
Two needle three threads cover stitch........ 12
Chain stitch sewing..................................... 14
V. Sewing ..................................................... 15
VI. Maintenance ...........................................19
VII. Machine specifications ..........................19
ENGLISH
INDICE: ESPAÑOL
I. Nombres de las partes y sus funciones ....21
II. Preparación antes del enhebrado ............ 26
III. Enhebrado .............................................. 27
IV. Tipos de puntadas...................................29
Puntada de recubierto triple ....................... 29
Puntada de recubierto de
dos agujas con tres hilos ................. 30
Costura de puntada de cadena .................. 32
V. Costura ....................................................33
VI. Mantenimiento ........................................37
VII. Especificaciones de la máquina ............ 37
ESPAÑOL
"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 – To reduce the risk of burns, fire, electric shock, or injury to persons.
1. Do not allow to be used as a toy. Close attention is necessary when the sewing machine is used by or near
children.
2. 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.
3. 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.
4. 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.
5. Never drop or insert any object into any openings.
6. Do not use outdoors.
7. Do not operate where aerosol (spray) products are being used or where oxygen is being administered.
8. 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.
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.
"SAVE THESE INSTRUCTIONS"
"This sewing machine is intended for household."
• 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.
• When servicing the sewing machine, or when
removing covers or changing lamps, the machine or the electrical set must be disconnected
from the supply by removing the plug from the
socket-outlet.
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
ENGLISH
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 alternative 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 ASTA to BS 1362, i.e. carrying the
as marked on plug.
Always replace the fuse cover, never use plugs with
the fuse cover omitted.
WARNING: DO NOT CONNECT EITHER WIRE
TO THE EARTH TERMINAL WHICH IS MARKED
WITH THE LETTER ‘E’, BY THE EARTH SYMBOL
OR COLOURED GREEN OR GREEN AND
YELLOW.
ASA
mark, rating
The wires in this mains lead are coloured in accordance with the following code:
Blue Neutral
Brown Live
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, proceed 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.
The wire which is coloured brown must be connected
to the terminal which is marked with the letter ‘L’ or
coloured red or brown.
1
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 for the 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 POSSIBLE HAZARDS.
2
I. Names of parts and their functions
2
1 Thread tree
2 Thread plate
3 Presser foot pressure adjustment screw
4 Spool pin
5 Spool cushion
6 Spool support
7 Thread take-up cover
8 Material plate cover
9 Needles
0 Differential feed raito adjustment dial
A Stitch length adjustment dial
B Presser foot
C Front cover
D Hand wheel
E Main power switch and light switch
F Presser foot lifting lever
G Spool stand
C
H Left needle thread tension dial
I Center needle thread tension dial
J Right needle thread tension dial
K Looper thread tension dial
L Thread guide
M Looper
N Looper release lever
O Lopper thread take up
P Foot controller:
J01780051 (110/120V Area)
XA6406051 (220/240V Area)
XA6408051 (U.K.)
XA6410051 (Australia, New Zealand)
XA6420051 (Germany)
9
0
2
A
5
6
4
8
P
1
7
3
B
G
N
H
I
M
L
J
D
K
O
E
F
ENGLISH
Accessories included
1
3
4
5
6
7
8
9
0
1 Soft cover X77871001
2 Accessory bag 122991002
3 Tweezers X75902001
4 Thread net (4) X75904000
5 Thread spool cap (4) X77260000
6 Spool mat (4) XB1218000
7 Cleaning brush X75906001
8 Hexagonal wrench XB0393001
9 Needle set: SCHMETZ 130/705H
(90/#14): 3pcs. XB1216001
Special presser foot (LC1)
0
The special presser foot is used when an
optional attachment is used.
XB1265001
3
Powering the machine
1
2
NOTE: (For U.S.A. only)
This foot controller can be used for sewing machine
model 2340CV.
Turning direction of motor
1
Preparation
• Insert the three-pin plug into the socket on the bottom
right side of the machine. Insert the 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 “ ” mark.
1 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.
2 Foot Controller: Model N
• 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 machine.
1 Hand wheel
Opening and closing the front cover
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
4
1
2
A
B
4
C
Always be sure to turn off the power before
carrying out this operation.
1
3
CAUTION
2
electric supply plug.
(1)Raise the presser foot lever. 1
(2)Set the needle to its highest position by turning the
hand wheel 2 counter clockwise.
(3)Push the button on the presser foot holder and the
standard foot will be released. 3 4
(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
just under the presser foot holder A so that the
groove in the bottom of the presser foot holder B is
aligned and catches the bar on the top of the foot C.
Then lower the presser foot lever to attach the foot.
4
Stitch length
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
(4)
(3)
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.
ENGLISH
• 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.
Feed ratio Main feed (rear) Differential feed (front) Effect Application
0.7 – 1.0
1.0
1.0 – 2.0
Material is pulled
tight.
Without differential
feed.
Material is gathered or pushed
together.
Prevents thin materials from puckering
Normal sewing
Prevents stretch materials from stretching or puckering
5
Presser foot pressure
• An example where adjustment is required
When stretch material is sewn without using the differential 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.
CAUTION
When sewing thick non-stretchable material such
as denim, do not use the differential feed as it
may damage the fabric.
2
1
5
3
10mm
3
(
/8 inch)
• 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
4
presser foot pressure should be loosened. When
sewing very heavy materials, the presser foot pressure should be tightened.
1 Pressure adjustment screw
2 Less pressure
3 More pressure
4 Pressure adjustment screw
5 (Standard height for medium material)
6
Needle
5
3
1
2
4
67 8
NOTE:
When front needles are inserted correctly you can
see the top of the needle in the window (5) above
each needle position.
CAUTION
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 damaged.
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.
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.
1 Needle set screw
2 Tighten
3 Loosen
4 Hexagonal wrench
5 Window
6 Left needle
7 Center needle
8 Right needle
ENGLISH
Needle description
1
2
4
3
1 Back
2 Front
3 Flat side
4 Groove
How to check the needle
5 Flat surface
6
6 Place the needle on its flat side and
check to see if the space is parallel.
5
NOTE:
Countermeasures for material breakage.
It can reduce the occurrence of material breakage by using SCHIMETZ 130/705H SUK (90/#14) BALL POINT.
7
II. Preparation before threading
1
2
3
Thread tree
4
1
2
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.
1 Thread holder on thread tree
2 Spool pin
3 Spool cushion
4 Correct position
3
Thread spool
The procedure for placing the spool of thread on the spool pin differs according to the shape of the spool.
Type A Type B
If you are sewing with loosely
1
2
3
spun nylon thread, we recommend 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.
1 Spool support
2 Spool cushion
3 Net
1 Spool support
2 Spool mat
3 Spool cap
Needle position
(1)
(2)
8
(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.
III. Threading
Needle threading
333
333
6
F
5
4
G
444
• Pass each thread from 333 to 444 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.
F Tension disk
G Thread tension release button
1
2
1
2
1
2
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 threading point. (1-9)
Threading the center needle
• Run the thread in the sequence illustrated, following
the pink color and the numbers next to each threading
point. (1-9)
Threading the right needle
• Run the thread in the sequence illustrated, following
the green color and the numbers next to each threading point. (1-9)
ENGLISH
CAUTION
When needle threading, always thread in this order:
Left needle, center needle and then right needle.
A To left needle
B To center needle
C To right needle
D Branching plate
E Pull about 6 cm (about 2-1/2 inches) of thread
through the eye of the needle.
999 Front to back
A
888
E
B
C
7
77
999
D
666
3
3
3
4 4 4
5 5 5
9
Looper threading
3
B
A
3
6
5
4
4
• Pass each thread from 3 to 4 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.
A Tension disk
B Thread tension release button
2
3
4
5
1
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. (1-0)
3 After running the thread to 0, pull the release lever A,
and then run the thread through B and C.
4 With about 10 cm (4 inch) of thread pulled through the
eye of the needle, as shown by D in the illustration,
move the looper back in the direction of the arrow to
lock it.
5 Close the front cover.
10
A
C
B
0
D
8
9
7
6
NOTE:
When using thick thread, such as decorative thread,
as the looper thread, run the thread as shown in the
illustration.
A
Do not run the thread through A.
Loading...