Singer LS-2720 User Manual

KNOWING YOUR SEWING MACHINE

SEWING BASICS

UTILITY STITCHES

APPENDIX

Basic Sewing and Mending Machine

Operation Manual

Please visit us at asked questions (FAQs).

http://solutions.brother.com

where you can get product support and answers to frequently

“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 changing the light bulb. 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 this machine 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 of the air openings blocked. Keep the 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 this machine outdoors.

7. Do not operate this machine 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 the cord. To unplug, grasp the plug and pull, 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 a bent needle.

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

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

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

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

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

“SAVE THESE INSTRUCTIONS”

“This sewing machine is intended for household use.”

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

If this machine is fitted with a three-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 alternative plugs an approved fuse must be fitted in the plug.

NOTE

The plug served from the main 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 mark, rating 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.

The wires in this main lead are coloured in accordance with the following code:

Blue Neutral

Brown Live

As the colours of the wiring in the main 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.

CONGRATULATIONS ON CHOOSING OUR MACHINE

To fully enjoy all the features, we suggest that you study the manual before using the machine.

PLEASE READ BEFORE USING THIS MACHINE

For safe operation

1. Be sure to keep your eye on the needle while sewing. Do not touch the handwheel, thread takeup lever, needle, or other moving parts.

2. Remember to turn off the power switch and unplug the cord when:

• Operation is completed

• Replacing or removing the needle or any other parts

• A power failure occurs during use

• Maintaining the machine

• Leaving the machine unattended

3. Do not store anything on the foot controller.

4. Plug the machine directly into the wall. Do not use extension cords.

For a longer service life

1. When storing this machine, avoid direct sunlight and high humidity locations. Do not use or store the machine near a space heater, iron, halogen lamp, or other hot objects.

2. Use only neutral soaps or detergents to clean the case. Benzene, thinner, and scouring powders can damage the case and machine, and should never be used.

3. Do not drop or hit the machine.

4. Always consult the operation manual when replacing or installing any assemblies, the presser feet, needle, or other parts to assure correct installation.

For repair or adjustment

In the event a malfunction occurs or adjustment is required, first follow the troubleshooting table in the back of the operation manual to inspect and adjust the machine yourself. If the problem persists, please consult your local authorized Brother dealer.

For additional product information and updates, visit our web site at www.brother.com

The contents of this manual and specifications of this product are subject to change without notice.

——————————————————————————————————————————————————————————————

—

CONTENTS

1. KNOWING YOUR SEWING MACHINE ..........................................................6

NAMES OF MACHINE PARTS AND THEIR FUNCTIONS ....................................................6

The main parts .................................................................................................................................................6

Needle and presser foot section ......................................................................................................................8

Flat bed attachment ......................................................................................................................................... 8

ACCESSORIES .....................................................................................................................9

USING YOUR SEWING MACHINE ...................................................................................10

Power supply precautions .............................................................................................................................. 10

Power supply .................................................................................................................................................. 10

Foot controller ................................................................................................................................................ 11

Steadying the machine ................................................................................................................................... 11

THREADING THE MACHINE ............................................................................................12

Winding the bobbin ........................................................................................................................................ 12

Lower threading ............................................................................................................................................. 14

Upper threading ............................................................................................................................................. 16

Drawing up the lower thread .......................................................................................................................... 18

REPLACING THE NEEDLE .................................................................................................19

Needle precautions ........................................................................................................................................ 19

Selecting the needle depending on the thread and fabric types .................................................................... 19

Checking the needle ......................................................................................................................................20

Replacing the needle ..................................................................................................................................... 20

Sewing with a twin needle (Option) ................................................................................................................ 22

REPLACING THE PRESSER FOOT ......................................................................................23

Replacing the presser foot ............................................................................................................................. 23

Removing the presser foot holder .................................................................................................................. 24

2. SEWING BASICS ...........................................................................................25

SEWING ............................................................................................................................25

General sewing procedure ............................................................................................................................. 25

Selecting stitching .......................................................................................................................................... 26

Starting to sew ............................................................................................................................................... 27

Sewing in reverse ........................................................................................................................................... 28

Thread tension ............................................................................................................................................... 28

USEFUL SEWING TIPS ......................................................................................................30

Trial sewing .................................................................................................................................................... 30

Changing the sewing direction ....................................................................................................................... 30

Sewing curves ................................................................................................................................................ 30

Sewing thick fabrics ....................................................................................................................................... 30

Sewing thin fabrics ......................................................................................................................................... 31

Sewing stretch fabrics .................................................................................................................................... 31

Using a free-arm style .................................................................................................................................... 31

3. UTILITY STITCHES ........................................................................................32

USEFUL STITCHES ............................................................................................................32

Zigzag stitches ............................................................................................................................................... 32

Basic stitching ................................................................................................................................................ 33

Blind hem stitching ......................................................................................................................................... 33

Darning ........................................................................................................................................................... 35

BUTTONHOLE SEWING ...................................................................................................36

Making the buttonhole .................................................................................................................................... 36

Adjusting buitching stitching ........................................................................................................................... 38

Button sewing ................................................................................................................................................. 38

ZIPPER INSERTION ...........................................................................................................40

APPLIQUÉ, MONOGRAMMING AND EMBROIDERING .................................................41

Appliqués ....................................................................................................................................................... 41

Monogramming and embroidering ................................................................................................................. 41

DECORATIVE STITCHING ................................................................................................43

Gathering ....................................................................................................................................................... 43

Shell tuck stitching ......................................................................................................................................... 43

Elastic stitching .............................................................................................................................................. 44

4. APPENDIX .....................................................................................................45

MAINTENANCE ................................................................................................................45

Oiling .............................................................................................................................................................. 45

Changing the bulb .......................................................................................................................................... 45

Cleaning the machine surface ........................................................................................................................ 46

Cleaning the shuttle race ............................................................................................................................... 46

Cleaning the feed dogs .................................................................................................................................. 47

Repacking the machine ..................................................................................................................................48

Bobbin case tension adjustment .................................................................................................................... 48

TROUBLESHOOTING .......................................................................................................50

INDEX ...............................................................................................................................53

KNOWING YOUR SEWING MACHINE —————————————————————————————————————————————

—

1 KNOWING YOUR SEWING MACHINE

NAMES OF MACHINE PARTS AND THEIR FUNCTIONS

The main parts

a Buttonhole fine-adjusting screw (page 38)

Turn the buttonhole fine-adjusting screw to adjust buttonhole stitching when it is not uniform.

b Pattern selection dial (page 26)

Turn the pattern selection dial to select the number of the stitch that you want to use.

c Thread take-up lever (page 16)

d Upper tension control dial (page 28)

This controls the tension of the upper thread.

e Flat bed attachment with accessory storage (page 8 and

31)

f Reverse sewing lever (page 28)

Press and hold down the reverse sewing lever to sew in the opposite direction.

g Built-in handle h Spool pin (page 12 and 16)

The spool pin holds the spool of thread.

i Bobbin winder (page 12)

The bobbin winder winds thread onto the bobbin for use as the lower thread.

j Handwheel

Use the handwheel to manually raise and lower the needle.

k Main power/sewing light switch (page 10)

Use this switch to turn on and off the main power and sewing light.

l Foot controller jack/jack

Insert the foot controller plug into the foot controller jack, which also supplies power to this machine.

m Thread cutter (page 28)

Pass the threads through the thread cutter to cut them.

n Presser foot lever (page 16)

Use the presser foot lever to raise and lower the presser foot.

o Bobbin winding pre-tension disc/thread guide (page 12

and 16)

The thread guide/bobbin winding pre-tension disc is used when winding the thread onto the bobbin and threading the machine.

p Foot controller (page 11)

Use the foot controller to control the sewing speed and to start and stop sewing. Part code; XC7359-021 (110/120V Area), XC7438-321 (220/240V Area), XC7456-321 (U.K.), XE0629-001 (Australia, New Zealand), XD0852-021 (Korea), XC7438-321 (Russia)

KNOWING YOUR SEWING MACHINE —————————————————————————————————————————————

—

Needle and presser foot section

a Presser foot holder assembly

The presser foot is installed onto the presser foot holder assembly.

b Presser foot screw

Use the presser foot screw to hold the presser foot holder assembly in place.

c Presser foot (Zigzag)

The presser foot applies pressure consistently on the fabric as the sewing takes place. Attach the appropriate presser foot for the selected stitching.

d Feed dogs

The feed dogs feed the fabric in the sewing direction.

e Needle plate

The needle plate is marked with guides for sewing straight seams.

f Shuttle hook g Shuttle cover

Open the shuttle cover to set the bobbin.

h Bobbin case i Needle j Needle bar thread guide k Needle clamp screw

Use the needle clamp screw to hold the needle in place.

Flat bed attachment

The accessories are stored in a compartment inside the flat bed attachment.

Lift the bottom of the flat bed attachment

toward you, and then pull the flat bed attachment out to remove it.

a Flat bed attachment b Storage compartment

Note

● Put the accessories in the bag, and then store the bag inside the compartment. If the accessories are not in a bag, they may fall out, and be lost or damaged.

ACCESSORIES

The following accessories are stored in the flat bed attachment. We have designed these accessories to help you be able to carry out most sewing tasks.

Note

(For U.S.A. only)

● Foot controller: Model KD-1902, N This foot controller can be used on the following machine models: LS-2220/2720/1520/2125/2125i.

● The screw of the presser foot holder is available through your authorized dealer. (Part code: 132730-122)

● A replacement for the factory-installed presser foot is available through your authorized dealer.

(Part number: 138135-122)

1. 2. 3. 4.

5. 6.

75/11 1 needle 90/14 1 needle 100/16 1 needle

No. Part Name

1 Buttonhole foot “A” X59369-321 5 Bobbin (3) SA156 2 Zipper foot “I” X59370-021 6 Needle set 129583-021

Button sewing foot “M”

3 4 Darning plate XA3442-121 8 Extra spool pin 130920-021

U.S.A. / Canada

Part Code

Others

XE2137-001 7 Screwdriver X55467-021

No. Part Name

7. 8.

Part Code

U.S.A. / Canada

Others

XA5539-151

KNOWING YOUR SEWING MACHINE —————————————————————————————————————————————

—

USING YOUR SEWING MACHINE

Power supply precautions

Be sure to observe the following precautions concerning the power supply.

WARNING

● Use only regular household electricity for the power source. Using other power sources may result in fire, electric shock, or damage to the machine.

● Turn off the main power and remove the plug in the following circumstances:

• When you are away from the machine

• After using the machine

• When the power fails during use

• When the machine does not operate correctly due to a bad connection or a disconnection

• During electrical storms

CAUTION

● Do not use extension cords or multi-plug adapters with many other appliances plugged in to them. Fire or electric shock may result.

● Do not touch the plug with wet hands. Electric shock may result. When unplugging the machine, always turn off the main power first. Always grasp the plug to remove it from

●

the outlet. Pulling on the cord may damage the cord, or lead to fire or electric shock.

● Do not allow the power cord to be cut, damaged, modified, forcefully bent, pulled, twisted, or bundled. Do not place heavy objects on the cord. Do not subject the cord to heat. These things may damage the cord and cause fire or electric shock. If the cord or plug is damaged, take the machine to your authorized dealer for repairs before continuing use.

● Unplug the power cord if the machine is not to be used for a long period of time. Otherwise a fire may result.

Power supply

Insert the foot controller plug, located

between the foot controller and the power supply plug on the cord, into the jack on the machine. Then, insert the power supply plug into a wall outlet.

a Foot controller plug

Set the main power switch to “I”.

X The sewing lamp comes on when the

machine is turned on.

To turn off the machine, set the main power

switch to “

{”.

X The sewing lamp goes off when the

machine is turned off.

Foot controller

CAUTION

Note

● If a power outage occurs while the sewing machine is being operated, turn off the sewing machine and unplug the power supply cord. When restarting the sewing machine, follow the necessary procedure to correctly operate the machine.

(For U.S.A. only)

● 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 connecting the foot controller, be sure to turn off the sewing machine in order to prevent the machine from accidentally being started.

When you press the foot controller down lightly, the machine will run at a low speed. When you press harder, the machine’s speed will increase. When you take your foot off the foot controller, the machine will stop.

Slower

Faster

You should make sure that nothing is placed on the foot controller when the machine is not in use.

CAUTION

● Do not allow pieces of cloth and dust to build up on the foot controller. Doing so could cause a fire or an electric shock.

● A new sewing machine or one that has not been in use for a long period of time should be oiled as described on page 45. After oiling, be sure to wipe off any excess oil.

Steadying the machine

If the sewing machine has been placed on an uneven surface, turn the rubber cushion in the right-front corner of the base plate to adjust its height until the sewing machine is stable.

KNOWING YOUR SEWING MACHINE —————————————————————————————————————————————

—

THREADING THE MACHINE

Winding the bobbin

This section describes how to wind the thread onto the bobbin.

1 Pulling it in as

far as possible.

a Pre-tension disk b Bobbin winder shaft c Bobbin

CAUTION

● Only use bobbins (part code: SA156, SFB: XA5539-151) that have been designed for this sewing machine. Using other bobbins may cause damage to the machine.

● We designed the bobbin that comes with this machine. If you use bobbins from other models, the machine will not work properly. Only use the bobbin that comes with this machine or bobbins of the same type (part code: SA156, SFB: XA5539-151).

Actual size

11.5 mm

(7/16 inches)

This model Other models

Pull up the spool pin as far as possible, and

then put a spool of thread on this pin.

Put the bobbin onto the bobbin winder shaft

and slide the bobbin winder shaft to the right. Turn the bobbin clockwise, by hand, until the

Pass the thread around the pre-tension disk.

spring on the shaft slides into the groove of the bobbin.

CAUTION

● If the spool of thread is not in the right place, the thread may tangle on the spool pin.

Pass the end of the thread through the hole on

the bobbin from the inside of the bobbin.

a Spring on the shaft b Groove of the bobbin

Turn on the sewing machine.

While holding the end of the thread, gently

press the foot controller to wind the thread around the bobbin a few times. Then stop the machine.

Cut the thread, slide the bobbin winder shaft

to the left and remove the bobbin.

Memo

● When the sewing machine is started or the handwheel is turned after winding the thread around the bobbin, the machine will make a clicking sound; this is not a malfunction.

● The needle bar does not move when you slide the bobbin winding shaft to the right.

CAUTION

Trim the excess thread above the bobbin.

CAUTION

● Make sure you follow the instructions carefully. If you do not cut the thread completely, and the bobbin is wound, when the thread runs low it may tangle around the bobbin and cause the needle to break.

Press the foot controller to start.

● Winding the bobbin improperly may cause the thread tension to loosen, breaking the needle and resulting in injury.

a Wound evenly b Wound poorly

When the bobbin seems full and begins

spinning slowly, take your foot off the foot controller.

KNOWING YOUR SEWING MACHINE —————————————————————————————————————————————

—

Open the shuttle cover behind the flat bed

Lower threading

attachment at the front of the machine.

Install the bobbin wound with thread.

CAUTION

● Winding the bobbin improperly may cause the thread tension to loosen, breaking the needle and resulting in injury.

a Flat bed attachment b Shuttle cover

Remove the bobbin case by pulling its latch

a Wound evenly b Wound poorly

toward you and pulling it out from the shuttle race.

● The bobbin was designed specifically for this sewing machine. If bobbins from other models are used, the machine will not operate correctly. Use only the enclosed bobbin or bobbins of the same type (part code: SA156, SFB: XA5539-151).

Actual size

11.5 mm

(7/16 inches)

This model Other models

a Bobbin case latch

Unwind about 10 cm (4 inches) of thread

from a full bobbin, and then insert the bobbin into the bobbin case.

CAUTION

● Make sure you turn the power off while threading the machine. If you accidentally step on the foot controller and the machine starts to sew, you could be injured.

Raise the needle to its highest position by turning

the handwheel toward you (counterclockwise) and raise the presser foot lever.

• Only use bobbins that were designed to be used with this machine.

CAUTION

● Make sure you set the bobbin so the thread unrolls in the right direction. If the thread unrolls in the wrong direction, it may cause the thread tension to be incorrect or break the needle.

Pull the trailing thread through the slot, down

and to the left, as shown below, until it enters the delivery eye under the tension spring.

a Tension spring

Hold the bobbin case by the latch, fully insert

the bobbin case into the shuttle race, and then release the latch.

• Make sure the bobbin case finger fits into the notch at the top of the shuttle race.

a Bobbin case finger b Notch

Close the shuttle cover.

CAUTION

● Make sure that the bobbin case is properly placed back into the machine. If it is incorrectly installed, it will fall out from the shuttle when the machine starts to sew.

+ 39 hidden pages

Singer LS-2720 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual