Brother S-7300A-333P, S-7300A-433P, S-7300A-403P, S-7300A-305P, S-7300A-303P Instruction Manual

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S-7300A

SINGLE NEEDLE DIRECT DRIVE LOCK STITCHER WITH ELECTRONIC FEEDING SYSTEM AND THREAD TRIMMER

INSTRUCTION MANUAL

Please read this manual before using the machine. Please keep this manual within easy reach for quick reference.

Thank you very much for buying a BROTHER sewing machine. Before using your new machine, please read the safety instructions and the explanations given in the instruction manual.

With industrial sewing machines, it is normal to carry out work while positioned directly in front of moving parts such as the needle and thread take-up, and consequently there is always a danger of injury that can be caused by these parts. Follow the instructions from training personnel and instructors regarding safe and correct operation before operating the machine so that you will know how to use it correctly.

S-7300A

The instructions which follow this term indicate situations where failure to follow the

(For example, the symbol at left means “you must make the ground connection”.)

SAFETY INSTRUCTIONS

[1] Safety indications and their meanings

This instruction manual and the indications and symbols that are used on the machine itself are provided in order to ensure safe operation of this machine and to prevent accidents and injury to yourself or other people. The meanings of these indications and symbols are given below.

Indications

DANGER

CAUTION

Symbols

WARNING

· · · · ·

This symbol ( ) indicates something that you should be careful of. The picture inside the triangle indicates the nature of the caution that must be taken. (For example, the symbol at left means “beware of injury”.)

This symbol ( ) indicates something that you must not do.

This symbol ( ) indicates something that you must do. The picture inside the circle indicates the

nature of the thing that must be done.

The instructions which follow this term indicate situations where failure to follow the instructions will result in death or serious injury.

instructions could result in death or serious injury.

instructions may result in minor or moderate injury.

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[2] Notes on safety

DANGER

Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet before opening the cover of the control box. Touching areas where high voltages are present can result in severe

WARNING

CAUTION

, and no dew formation

Excessively dry or humid environments and dew formation may cause problems with correct

Lightning may cause problems with correct

should be secured in such a way so that they

Be sure to wear protective goggles and gloves

under any circumstances, as they can cause

injury.

Do not allow any liquids to get onto this sewing machine, otherwise fire, electric shocks or operating problems may occur.

If any liquid gets inside the sewing machine (machine head or control box), immediately turn off the power and disconnect the power plug from the electrical outlet, and then contact the place of purchase or a qualified technician.

Environmental requirements

Use the sewing machine in an area which is free from sources of strong electrical noise such as electrical line noise or static electric noise. Sources of strong electrical noise may cause problems with correct operation.

Any fluctuations in the power supply voltage should be within ±10% of the rated voltage for the machine. Voltage fluctuations which are greater than this may cause problems with correct operation.

The power supply capacity should be greater than the requirements for the sewing machine's power consumption. Insufficient power supply capacity may cause problems with correct operation.

The ambient temperature should be within the range of 5°C to 35°C during use. Temperatures which are lower or higher than this may cause problems with correct operation.

The relative humidity should be within the range of 45% to 85% during use should occur in any devices.

operation.

In the event of an electrical storm, turn off the power and disconnect the power cord from the wall outlet.

operation.

Do not connect anything to the USB port other than the USB memory. If this is not observed, problems with operation may result.

Installation

Machine installation should only be carried out by a qualified technician.

Contact your Brother dealer or a qualified electrician for any electrical work that may need to be done.

The sewing machine weighs approximately 34.5 kg (76lb). The installation should be carried out by two or more people.

Do not connect the power cord until installation is complete. The machine may operate if the treadle is depressed by mistake, which could result in injury.

Turn off the power switch before inserting or removing the plug, otherwise damage to the control box could result.

Be sure to connect the ground. If the ground connection is not secure, you run a high risk of receiving a serious electric shock, and problems with correct operation may also occur.

When securing the cords, do not bend the cords excessively or fasten them too hard with staples, otherwise there is the danger that fire or electric shocks could occur.

S-7300A

If using a work table which has casters, the casters

cannot move.

Secure the table so that it will not move when tilting back the machine head. If the table moves, it may crush your feet or cause other injuries.

Use both hands to hold the machine head when tilting it back or returning it to its original position. If only one hand is used, the weight of the machine head may cause your hand to slip, and your hand may get caught.

when handling the lubricating oil and grease, so that they do not get into your eyes or onto your skin, otherwise inflammation can result. Furthermore, do not drink the oil or eat the grease

vomiting and diarrhea. Keep the oil out of the reach of children.

iii

CAUTION

Sewing

only be used by

The machine may operate if the treadle is

When not using the machine and when leaving

should be secured in such a way so that they

machine. If the machine is used without these

personal injury or damage to the

Use both hands to hold the machine head when

only one hand is used, the weight of the machine

If an error occurs in machine operation, or if

If the machine develops a problem, contact your

Turn off the power switch before carrying out

do not get into your eyes or onto your skin,

Furthermore, do not drink the oil or eat the grease under any circumstances, as they can cause

This sewing machine should operators who have received the necessary training in safe use beforehand.

The sewing machine should not be used for any applications other than sewing.

Be sure to wear protective goggles when using the machine. If goggles are not worn, there is the danger that if a needle breaks, parts of the broken needle may enter your eyes and injury may result.

Turn off the power switch at the following times.

depressed by mistake, which could result in injury.

 When threading the needle  When replacing the bobbin and needle 

the machine unattended

If using a work table which has casters, the casters

cannot move.

Attach all safety devices before using the sewing

devices attached, injury may result.

Cleaning

Do not touch any of the moving parts or press any objects against the machine while sewing, as this may result in machine.

Secure the table so that it will not move when tilting back the machine head. If the table moves, it may crush your feet or cause other injuries.

tilting it back or returning it to its original position. If

head may cause your hand to slip, and your hand may get caught.

abnormal noises or smells are noticed, immediately turn off the power switch. Then contact your nearest Brother dealer or a qualified technician.

nearest Brother dealer or a qualified technician.

Do not hold the machine head by the panel when tilting it back or returning it to its original position. If this is not observed, it may result in serious injury or damage to the sewing machine.

cleaning. The machine may operate if the treadle is depressed by mistake, which could result in injury.

Secure the table so that it will not move when tilting back the machine head. If the table moves, it may crush your feet or cause other injuries.

Be sure to wear protective goggles and gloves when handling the lubricating oil and grease, so that they

otherwise inflammation can result.

vomiting and diarrhea. Keep the oil out of the reach of children.

Do not hold the machine head by the panel when tilting it back or returning it to its original position. If this is not observed, it may result in serious injury or damage to the sewing machine.

S-7300A

CAUTION

Maintenance and inspection

carry out any maintenance and inspection of the

cord from the wall outlet at the following times,

When carrying out inspection, adjustment and

you touch the surface of the motor, it may cause

Use both hands to hold the machine head when

replacing parts and installing optional

Brother will not be held responsible for any accidents or problems resulting from the use of

If any safety devices have been removed, be

positions and check that they operate correctly

Brother will not be held responsible for any

Maintenance and inspection of the sewing machine should only be carried out by a qualified technician.

Ask your Brother dealer or a qualified electrician to

electrical system.

Turn off the power switch and disconnect the power

otherwise the machine may operate if the treadle is depressed by mistake, which could result in injury.



maintenance

 When replacing consumable parts such as the

rotary hook and knife

Always be sure to turn off the power switch and then wait one minute before opening the pulley cover. If

burns.

If the power switch needs to be left on when carrying out some adjustment, make sure that you switch the sewing machine to maintenance mode. Pay careful attention to safety.

Secure the table so that it will not move when tilting back the machine head. If the table moves, it may crush your feet or cause other injuries.

tilting it back or returning it to its original position. If only one hand is used, the weight of the machine head may cause your hand to slip, and your hand may get caught.

When accessories, be sure to use only genuine Brother parts.

non-genuine parts.

absolutely sure to re-install them to their original

before using the machine.

To prevent accidents and problems, do not modify the machine yourself.

accidents or problems resulting from modifications made to the machine.

Do not hold the machine head by the panel when tilting it back or returning it to its original position. If this is not observed, it may result in serious injury or damage to the sewing machine.

S-7300A

[3] Warning labels

Touching areas where high voltages are present can result in severe injury. Turn off the power before

Be careful not to get your hands caught when returning the machine head to its original position after it has been tilted.

Be careful to avoid injury from

up and

Do not hold. Problems with

Be sure to connect the ground. If the ground connection is not

you run a high risk of receiving a serious electric shock, and problems with correct

Direction of operation

* Safety devices:

(A) Finger guard

place your hands inside

Problems with operation or

The following warning labels appear on the sewing machine. Please follow the instructions on the labels at all times when using the machine. If the labels have been removed or are difficult to read, please contact your nearest Brother dealer.

opening the cover.

(B) Thread take-up cover (C) pulley cover

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the moving thread takepulley.

operation or injury may occur.

secure,

operation may also occur.

Do not the bottom cover.

injury may occur.

Control box

Oil tank

Transformer box (100 V/400 V system only)

0874D

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vii

S-7300A

1. MACHINE SPECIFICATIONS ................. 1

2. NAMES OF MAJOR PARTS ................. 2

3. INSTALLATION ..................................... 3

3-1. Table processing diagram ................................ 4

3-2. Installation ........................................................ 4

3-3. Lubrication ........................................................ 7

3-4. Connecting the cords ........................................ 8

3-4-1. Connecting the cords ............................. 8

3-4-2. Other cords .......................................... 10

3-5. Test operation (Operating the treadle) ........... 14

3-6. Adjusting the treadle ....................................... 15

4. PREPARATION BEFORE SEWING ..... 16

4-1. Installing the needle ........................................ 16

4-2. Removing the bobbin case ............................. 16

4-3. Winding the lower thread ................................ 17

4-4. Installing the bobbin case ............................... 17

4-5. Threading the upper thread ............................ 18

4-6. Using the knee lifter ........................................ 19

5. USING THE OPERATION PANEL

(BASIC OPERATIONS) ........................ 20

5-1. Names and functions ...................................... 20

5-2. Home screen .................................................. 20

5-2-1. Description of detailed home screen ... 21

5-2-2. Description of simple home screen ...... 22

5-2-3. Types of icons ...................................... 23

5-3. Menu screen ................................................... 24

5-4. Program setting method ................................. 25

5-4-1. Program structure ................................ 25

5-4-2. Start backtack settings ......................... 28

5-4-3. Main sewing settings ............................ 29

5-4-4. End backtack settings .......................... 30

5-5. Using program individual functions

and program common functions ..................... 31

5-5-1. Needle up/down ................................... 32

5-5-2. Thread trimming lock ........................... 32

5-5-3. Thread wiper ........................................ 32

5-5-4. Correction sewing ................................ 33

5-5-5. AUTO ................................................... 33

5-5-6. Slow start ............................................. 34

5-5-7. Special locus ........................................ 34

5-5-8. Best PFM mode ................................... 35

5-5-9. X-over seam assist mode .................... 35

5-6. Using the production counter ......................... 36

5-7. Using the lower thread counter ...................... 37

5-8. Home screen mode setting ............................ 39

5-9. Illumination LED brightness setting ................ 40

6. USING THE OPERATION PANEL

(ADVANCED OPERATIONS) .............. 41

6-1. Adding and deleting steps ............................... 41

6-2. Editing steps.................................................... 42

6-3. Sewing start step setting ................................. 43

6-4. Program copy .................................................. 44

6-5. Shortcut key assignment method ................... 45

6-6. Design stitch registration method ................... 46

6-7. Working pace setting method ......................... 48

6-8. Memory switch setting method (Standard) ..... 49

6-9. List of memory switch settings ........................ 50

6-10. Hand switches ............................................... 54

6-10-1. Hand switch function setting............... 56

6-10-2. 2nd correction pitch setting ................ 57

6-10-3. 2nd pitch setting ................................. 57

6-11. Reading and writing data using

USB media .................................................... 58

6-12. Resetting all settings to their defaults ........... 59

7. SEWING ............................................... 60

7-1. Sewing ............................................................ 60

7-2. Using the thread wiper .................................... 60

7-3. Backtacking ..................................................... 61

7-4. Sewing condensed stitches ............................ 62

8. NEW FUNCTIONS ................................ 63

8-1. Best PFM mode (short trailing length/

bird's nest reduction mode) ............................. 63

8-2. Using X-over seam assist mode ..................... 64

8-3. Using the feed dog locus ................................ 65

8-4. Example of using hand switch settings ........... 66

9. THREAD TENSION .............................. 67

9-1. Adjusting the thread tension ........................... 67

9-2. Adjusting the presser foot pressure ................ 68

9-3. Adjusting the trailing length after thread

trimming .......................................................... 68

9-4. Adjusting the thread take-up amount

(-[][]3 specifications) ........................................ 69

10.CLEANING ........................................... 70

10-1. Daily cleaning procedures ............................. 70

11.ADJUSTING THE ROTARY HOOK

LUBRICATION AMOUNT .................... 72

12.STANDARD ADJUSTMENTS .............. 73

12-1. Thread tension spring ................................... 73

12-2. Arm thread guide R ....................................... 74

12-3. Presser foot height ........................................ 75

12-4. X-over seam sensor correction ..................... 75

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12-5. Adjusting the feed dog height ....................... 76

12-6. Adjusting the feed dog angle ........................ 77

12-7. Adjusting the needle bar height .................... 78

12-8. Adjusting the needle and feed

mechanism timing ........................................ 79

12-9. Needle and rotary hook timing ..................... 80

12-10. Adjusting the presser foot floating amount

(minute lifting amount) (option)................... 81

12-11. Thread trimming ......................................... 82

13.LIST OF ERROR CODES ..................... 86

14.TROUBLESHOOTING .......................... 90

S-7300A

1. MACHINE SPECIFICATIONS

Thread wiper - O

Lubrication type

Minimum lubrication

Semi dry

Use

For mediumweight materials

For heavy-weight materials

-333P,-433P,

-303P, -403P

-305P

-405P

Max. sewing speed * Standard feed locus

Pitch 4 or less /5000 sti/min

More than pitch 4/4000 sti/min

Pitch 4 or less /4500 sti/min

More than pitch 4/4000 sti/min

Backtack sewing speed * Standard feed locus

Automatic 150 (*1) - 3000 sti/min, Manual 150 (*1) - 4000 sti/min*

(*1) Inching setting speed

Max. stitch length

5mm

7mm(* 5 mm at time of shipment)

Presser foot height

Lifting lever

6mm

Knee lifter

16mm

Feed dog height

0.8mm

1.2mm

Needle (DB×1, DP×5)

#11 - #18

#19 - #22

Motor

AC servo motor

Control circuit

Microprocessor

Rotary hook

New lubrication-type rotary hook

-[]0[]P

-[]3[]P

Rotary hook

High-speed spindle

Needle bar

Special Brother grease

0875D

1. MACHINE SPECIFICATIONS

Lubricating oil

High-speed spindle

S-7300A

2. NAMES OF MAJOR PARTS

(1) Bobbin winder

(2) Thread wiper device

(3) Lifting lever

(4) Hand switch A

(5) Hand switch B

(6) Work clamp

(7) Knee lifter plate

(8) Power switch

(9) Oil gauge window

(10) Oil feeding pocket

(11) Machine pulley

(12) Operation panel

(13) Cotton stand

(14) Control box

(15) Power indicator

(16) USB port

Safety devices:

(17) Pulley cover

(18) Thread take-up cover

(19) Finger guard

0876D

2. NAMES OF MAJOR PARTS

S-7300A

3. INSTALLATION

CAUTION

Machine installation should only be carried out by a

Contact your Brother dealer or a qualified electrician

. The installation should be carried out by two

ect the power cord until installation is

complete. The machine may operate if the treadle is

Secure the table so that it will not move when tilting back the machine head. If the table moves, it may

tilting it back or returning it to its original position. If only one hand is used, the weight of the machine head may cause your hand to slip, and your hand

0475D

0877D

0878D

0879D

3. INSTALLATION

qualified technician.

for any electrical work that may need to be done.

The sewing machine weighs approximately 34.5 kg (76lb) or more people.

Do not conn

depressed by mistake, which could result in injury.

About the machine set-up location

・ Do not set up this sewing machine near other equipment such as

televisions, radios or cordless telephones, otherwise such equipment may be affected by electronic interference from the sewing machine.

・ The sewing machine should be plugged directly into an AC wall

outlet. Operation problems may result if extension cords are used.

crush your feet or cause other injuries.

Use both hands to hold the machine head when

may get caught.

Carrying the machine

・ The sewing machine should be carried by the arm and the pulley

cover by two people as shown in the illustration.

* Do not hold by any part other than the pulley cover. If this is not

observed, it may result in damage to the sewing machine.

* Do not hold the operation panel.

Tilting back the machine head

・ Hold section (A) with your foot so that the table does not move,

and then push the arm with both hands to tilt back the machine head.

* Do not push the operation panel.

Returning the machine head to the upright position

1. Clear away any tools, etc. which may be near the table holes.

2. While holding the face plate with your left hand, gently return the machine head to the upright position with your right hand.

* Do not hold the operation panel.

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3. INSTALLATION

0880D

Control box mounting hole

0881D

3-1. Table processing diagram

・ The top of the table should be 40 mm in thickness and should be strong enough to hold the weight and with-stand the

vibration of the sewing machine.

・ Drill holes as indicated in the illustration below.

Head rest hole

Cotton stand hole

Cord hole

3-2. Installation

1. Control box

(1) Control box (2) Bolts [4 pcs] (3) Washers [2 pcs] (4) Nuts [2 pcs] (5) Spring washers [2 pcs] (6) Washers [2 pcs] (7) Bolts (large) [2 pcs] (8) Nuts (large) [2 pcs] (9) Spring washers (large) [2 pcs] (10) Washers (large) [2 pcs]

2. Connecting rod

(11) Connecting rod (12) Nut

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3. INSTALLATION

0882D

0883D

0938D

3. Rubber cushions

(1) Rubber cushions [2 pcs]

4. Machine head

(1) Hinges [2 pcs] (2) Machine head (3) Head rest

NOTE:

･Bind the cords together and pass

them through the cord hole.

･Tap the head rest (3) securely into

the table hole. If the head rest (3) is

not pushed in as far as it will go, the

machine head will not be sufficiently

stable when it is tilted back.

5. Machine head seal

1. Tilt back the machine head, and then peel off the sticker (1).

2. Peel off the protective sheet (3) from the operation panel (2).

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3. INSTALLATION

0885D

0884D

6. Knee lifter plate

1. Turn the machine pulley so that the feed dog is below the top of the needle plate.

2. Lower the presser foot (1) by using the lifting lever (2).

3. Loosen the nut (3).

4. Turn the screw (5) to adjust so that the amount of play in the knee lifter plate (4) is approximately 10 mm.

5. Securely tighten the nut (3).

10 mm

Within 16 mm

6. Loosen the nut (6).

7. Turn the adjusting screw (8) to adjust so that the presser

foot (7) is at the desired position within a distance of 16 mm of the needle plate when the knee liter plate is fully pressed.

8. After adjustment is completed, securely tighten the nut (6).

S-7300A

3. INSTALLATION

CAUTION

Do not connect the power cord until lubrication has been completed, otherwise the machine may operate if the

Be sure to wear protective goggles and gloves when handling the lubricating oil and grease, so that they do not get

Upper reference line

Lower reference line

0886D

3-3. Lubrication

treadle is depressed by mistake, which could result in injury.

into your eyes or onto your skin, otherwise inflammation can result. Furthermore, do not drink the oil or eat the grease under any circumstances, as they can cause vomiting and diarrhea. Keep the oil out of the reach of children.

When cutting the nozzle of the oil tank, hold the base of the nozzle securely. If you hold the end of the nozzle, injury from the scissors may result.

The sewing machine should always be lubricated and the oil supply replenished before it is used for the first time, and also after long periods of non-use.

1. Hold the base of the nozzle of the accessory oil tank (1), and use scissors to cut about half-way along the straight section (A) of the nozzle.

2. Loosen and remove the nozzle, and then remove the seal (2).

3. Tighten the nozzle.

4. Open the oil feeding pocket cover (3).

5. Insert the nozzle of the oil tank (1) deeply into the

oil feeding pocket (4), and then add about 120 ml of lubricating oil.

6. Check that the oil gauge (6) comes to the upper

reference line in the oil gauge window (5).

7. Close the oil feeding pocket cover (3).

Be sure to add more oil if the oil gauge (6) is below the lower reference line.

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3. INSTALLATION

CAUTION

Do not connect the power cord until all cords have

The machine may operate if the treadle is depressed

When securing the cords, do not bend the cords

too hard with staples,

otherwise there is the danger that fire or electric

Be sure to connect the ground. If the ground

receiving a serious electric shock, and problems with correct operation may also occur.

0887D

Push in securely until the tabs (7) engage.

0888D

3-4. Connecting the cords

Contact your Brother dealer or a qualified electrician for any electrical work that may need to be done.

been connected.

by mistake, which could result in injury.

3-4-1. Connecting the cords

ower the tab (7).

excessively or fasten them

shocks could occur.

connection is not secure, you run a high risk of

1. Harness cover

1. Raise the harness cover (1).

2. Cords (1)

(1) Harness cover (2) Sewing machine motor encoder

connector 16-pin

(3) Feed motor encoder connector

6-pin (4) Hand switch connector 12-pin (5) 10-pin operation panel connector (6) 10-pin solenoid

1. Pass the cords through the harness

cover (1).

2. Connect the cords to the control

box.

NOTE:

For Europe specifications, Americas 220V specifications and 100V/400V system specifications, refer to “3-4-2. Other cords”.

connector

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3. INSTALLATION

0889D

Lower the tab (4).

Align the flat edges

Push in securely until the tabs (4) engage.

Green and yellow wire (ground wire)

Ground symbol

0928D

0890D

3. Lower the harness cover (1), and

then place the harness inside the harness cover.

3. Cords (2)

(1) 4-pin machine motor connector (2) Feed motor connector 6-pin (3) 3-pin power connector

4. Ground wire

(1) Ground wire (2) Screw (Recommended tightening

torque 1.0±0.1 N.m) (3) Power cord

1. Attach an appropriate plug to the

power cord (3). (The green and yellow wire is the ground wire.)

2. Insert the power plug into a

properly-grounded electrical outlet.

NOTE:

・ Make sure that the ground

connections are secure in order to ensure safety.

・ For Europe specifications,

Americas 220 V specifications and 100 V/400 V system specifications, refer to “3-4-2. Other cords”.

S-7300A

3. INSTALLATION

DANGER

after turning off the power switch and disconnecting the power cord from the wall outlet

before opening the cover of the control box. Touching areas where high voltages are present can result in severe

0943D

Green and yellow wire (ground wire)

Control box

Leg

3-4-2. Other cords

Wait at least 5 minutes

injury.

For Europe specifications, Americas 220V specifications and 100 V/400 V system specifications, connect the cords according to the respective specifications.

< Europe specifications > (1) Filter box (2) Screws [4 pcs] (3) Connector (4) CE bush plate (5) Screws [2 pcs] (6) CE D cord cover (7) Screws [2 pcs] (8) Staples [5 pcs] (9) Power cord

1. Attach an appropriate plug to the

power cord (9). (The green and yellow wire is the ground wire.)

2. Insert the power plug into a

properly-grounded electrical outlet.

NOTE:

・ Take care when tapping in the

staples (8) to make sure that they do not pierce the cords.

・ Do not use extension cords,

otherwise machine operation problems may result.

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3. INSTALLATION

4145M

(1) Power switch (2) Screws [2 pcs]

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3. INSTALLATION

Green and yellow

0945D

(3) Transformer box (4) Transformer box plates [2 pcs] (5) Screw [with washer] (6) 3-pin power supply connector (7) Staples [5 pcs] (8) Cord clamps [2 pcs] (9) Power cord

1. Attach an appropriate plug to the

power cord (9). (The green and yellow wire is the ground wire.)

2. Insert the power plug into a

properly-grounded electrical outlet.

NOTE:

・ Take care when tapping in the

staples (7) to make sure that they do not pierce the cords.

・ Do not use extension cords,

otherwise machine operation problems may result.

wire (ground wire)

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3. INSTALLATION

Operator

4145M

0892D

Green and yellow

(1) Power switch (2) Screws [2 pcs]

(3) 3-pin power supply connector (4) Power cord (5) Staples [5 pcs]

1. Attach an appropriate plug to the

power cord (4). (The green and yellow wire is the ground wire.)

2. Insert the power plug into a

properly-grounded electrical outlet.

NOTE:

・ Take care when tapping in the

staples (5) to make sure that they do not pierce the cords.

・ Do not use extension cords,

otherwise machine operation problems may result.

wire (ground wire)

S-7300A

3. INSTALLATION

CAU

TIO

0893D

3-5. Test operation (Operating the treadle)

Do not touch any of the moving parts or press any objects against the machine while sewing, as this may result in personal injury or damage to the machine.

1. Turning on the power

Press the ON power switch (1).

The power indicator (2) will illuminate.

The display (3) of the operation panel will change in the order shown in the illustration. (During this time, the feed mechanism will return to the home position.)

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3. INSTALLATION

3648M

2117M

0939D

0940D

3-6. Adjusting the treadle

2. Test operation

1. Check that the machine sews at low speed when

the treadle (1) is gently pressed to position (B).

2. Then check that it sews at high speed when the treadle

(1) is gently pressed to position (C).

3. After pressing the treadle (1) forward, check

that the needle is lowered to the top of the needle plate when the treadle (1) is returned to the neutral position (A). (when needle down stopping has been set.)

4. If the treadle (1) is pressed to position (D), thread

trimming is carried out and the needle then rises above the needle plate and stops.

If the machine starts running at low speed when your foot is simply resting on the treadle, or if the treadle pressure is felt to be too weak, adjust the position (a to c) at which the treadle spring (1) is hooked onto the treadle lever (2).

* a is the weakest position, and it becomes gradually

stronger at b, c and d respectively.

1. Loosen the nut (3) and turn the bolt (4).

* When the bolt (4) is tightened, the treadle operation

becomes heavier, and when it is loosened, the operation becomes lighter.

2. Tighten the nut (3).

< Adjusting the treadle stroke >

Remove the nut (5), and then move the connecting rod joint (6) from the position in figure A to the position in figure B. The treadle stroke will then be increased by approximately 27 %. At this time, the treadle forward and backward depression sensitivity will change, so readjust if necessary.

S-7300A

4. PREPARATION BEFORE SEWING

CAUTION

0894D

0795M

Front

Long

2119M

2120M

For thick materials

0798M

2121M

4. PREPARATION BEFORE SEWING

4-1. Installing the needle

Turn off the power switch before installing the needle. The machine may operate if the treadle is depressed by mistake, which could result in injury.

1. Turn the machine pulley to move the needle bar to its highest position.

2. Loosen the screw (1).

3. Insert the needle (2) in a straight line as far as it will go, making sure that the long groove on the needle is at the left, and then securely tighten the screw (1).

4-2. Removing the bobbin case

groove

Turn off the power switch before removing the bobbin case. The machine may operate if the treadle is depressed by mistake, which could result in injury.

1. Turn the machine pulley to raise the needle until it is above the needle plate.

2. Pull the latch (1) of the bobbin case upward and then remove the bobbin case.

3. The bobbin (2) will come out when the latch (1) is released.

* There is an anti-spin spring (3) inside the bobbin case. The

anti-spin spring (3) prevents the bobbin from racing at times such as during thread trimming.

* Use bobbins (2) made of light alloy as specified by

BROTHER.

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4. PREPARATION BEFORE SEWING

2126M

CAUTION

Do not touch any of the moving parts or press any objects against the machine while winding the lower thread, as

CAUTION

0895D

0896D

2124M

Less thread

More thread

0802M

2125M

4-3. Winding the lower thread

this may result in personal injury or damage to the machine.

1. Turn on the power switch.

2. Place the bobbin (1) onto the bobbin winder shaft (2).

3. Wind the thread several times around the bobbin (1) in the direction indicated by the arrow.

4. Push the bobbin presser arm (3) toward the bobbin(1).

5. Raise the presser foot with the lifting lever.

6. Depress the treadle. Lower thread winding will then start.

7. Once winding of the lower thread is completed, the bobbin presser arm (3) will return automatically.

8. After the thread has been wound on, remove the bobbin and cut the thread with the knife (4).

* Loosen the screw (5) and move the bobbin presser (6) to

adjust the amount of thread wound onto the bobbin.

NOTE:

The amount of thread wound onto the bobbin should be a maximum of 80 % of the bobbin capacity.

4-4. Installing the bobbin case

Turn off the power switch before installing the bobbin case. The machine may operate if the treadle is depressed by mistake, which could result in injury.

1. Turn the machine pulley to raise the needle until it is above the needle plate.

2. While holding the bobbin so that the thread winds to the right, insert the bobbin into the bobbin case.

3. Pass the thread through the slot (1) and under the tension spring (2), and then pull it out from the thread guide (3).

4. Check that the bobbin turns clockwise when the thread is pulled.

5. Hold the latch (4) on the bobbin case and insert the bobbin case into the rotary hook.

S-7300A

4. PREPARATION BEFORE SEWING

CAUTION

0897D

25 - 30mm (Reference value: #60 spun thread)

4-5. Threading the upper thread

Turn off the power switch before threading the upper thread. The machine may operate if the treadle is depressed by mistake, which could result in injury.

Turn the machine pulley and raise the thread take-up (1) before threading the upper thread. This will make threading easier and it will prevent the thread from coming out at the sewing start.

S-7300A

4. PREPARATION BEFORE SEWING

0899D

4-6. Using the knee lifter

The presser foot (2) can be raised by pressing the knee lifter plate (1).

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5. USING THE OPERATION PANEL (BASIC OPERATIONS)

(3)

(1)

5. USING THE OPERATION PANEL (BASIC OPERATIONS)

5-1. Names and functions

(1) Menu key

This key is used to move to the menu screen.

(2) Home key

This key is used to return to the home screen.

(3) Half stitch key

When the sewing machine is stopped, the needle bar can be moved up and down by pressing this key.

(4) Touch panel (display)

This displays messages and touch keys (icons).

(4)

(2)

5-2. Home screen

・ The home screen is displayed when the power is turned on. ・ Sewing operations are normally carried out while the home screen is displayed. ・ The home screen can be switched between the detailed home screen and the simple home screen.

*At the time of shipment from the factory, the detailed home screen is set to be displayed.

・ If you keep pressing the key while the home screen is displayed, you can switch between the detailed home screen

and the simple home screen. Furthermore, you can return to the home screen from any other screen by pressing the key.

Detailed home screen Simple home screen

S-7300A

5. USING THE OPERATION PANEL (BASIC OPERATIONS)

(1)

Screen lock key

Press this key to switch the home screen between locked and unlocked.

At the time of shipment from the factory, the screen is set to lock automatically if no operations are carried out for one minute. (Refer to memory switch MSW-310.)

Screen unlock key

(2)

Illumination LED on key

Press this key to switch the illumination LED between on and off. If you keep pressing this key, the display switches to the illumination LED brightness setting screen.

Illumination LED off key

(3)

Program No. UP key

Press this key to increase the program number.

Program No. DOWN key

Press this key to decrease the program number. (4)

Main stitch pitch key

If you keep pressing this key, the display switches to the stitch pitch setting screen.

(5)

Main sewing speed key

If you keep pressing this key, the display switches to the main sewing speed setting screen.

(6)

Production counter key

If you keep pressing this key while the production counter is displayed, the display switches to the production counter setting screen.

Lower thread counter key

If you keep pressing this key while the production counter is displayed, the display switches to the production counter setting screen.

(7)

Needle up/down key

Press this key to switch the stop position after sewing (needle up/needle down).

(8)

Thread trimming lock key

Press this key to switch thread trimming locking (disabled/enabled) when the treadle is depressed backward.

(9)

Thread wiper key

Press this key to switch the thread wiper operation (off/on).

(10)

Correction key

Press this key to switch correction sewing operation (off/on) by using the hand switch.

(11)

AUTO key

Press this key to switch between different sewing operations (normal sewing /automatic sewing/automatic sewing with thread trimming).

(12)

Slow start key

Press this key to switch slow start operation at the sewing start (off/1/2/3/4).

(13)

Special locus key

Press this key to switch the special locus operation for the feed dog (off/1/2/3).

(14)

Best PFM key

Press this key to switch the best PFM mode (off/pulling out/short trailing

screen.

(15)

X-over seam assist

This switches X-over seam assist mode (disabled/enabled).

setting screen.

(16)

Start backtack key

Press this key to switch the start backtack sewing operation (off/on). If you keep pressing this key, the display switches to the start backtack setting screen.

(17)

Main sewing key

If you keep pressing this key, the display switches to the main sewing setting screen.

(18)

End backtack key

Press this key to switch the end backtack sewing operation (off/on).

screen.

(16)

(17)

(18)

Program No.

Main stitch pitch

Main sewing speed

Target counter

Production counter

(1)

(2)

(3)

5-2-1. Description of detailed home screen

NOTE:

(4)

(6)

(5)

(7) (8) (9)

(10)

(13)

(11)

(14)

(12)

(15)

length/pulling out + short trailing length). If you keep pressing this key, the display switches to the best PFM mode setting

mode key

If you keep pressing this key, the display switches to the X-over seam assist mode

If you keep pressing this key, the display switches to the end backtack setting

S-7300A

5. USING THE OPERATION PANEL (BASIC OPERATIONS)

(1)

Screen lock key

Press this key to switch the home screen between locked and unlocked.

At the time of shipment from the factory, the screen is set to lock automatically

one minute. (Refer to memory switch

MSW-310.)

Screen unlock key

(2)

Illumination LED on key

Press this key to switch the illumination LED between on and off. If you keep pressing this key, the display switches to the illumination LED brightness setting screen.

Illumination LED off key

(3)

Program No. UP key

Press this key to increase the program number.

Program No. DOWN key

Press this key to decrease the program number. (4)

Main stitch pitch key

If you keep pressing this key, the display switches to the stitch pitch setting screen.

(5)

Main sewing speed key

If you keep pressing this key, the display switches to the main sewing speed setting screen.

(6)

Production counter key

If you keep pressing this key while the production counter is displayed, the display switches to the production counter setting screen.

(7)

Lower thread counter key

If you keep pressing this key while the production counter is displayed, the display switches to the production counter setting screen.

(8)

Shortcut 1 key

This key is set to operate as a "Start backtack key" at the time of shipment from the factory.

(9)

Shortcut 2 key

This key is set to operate as an "End backtack key" at the time of shipment from the factory.

(10)

Shortcut 3 key

This key is set to operate as a "Slow start key" at the time of shipment from the factory.

(11)

Shortcut 4 key

This key is set to operate as a "Thread trimming lock key" at the time of shipment from the factory.

(11)

(6)

(4)

Program No.

Main stitch pitch

Main sewing speed

Target counter

Production counter

Lower thread counter

(1)

(2)

(3)

(5)

(7)

(8)

(9)

(10)

5-2-2. Description of simple home screen

* The assignments for shortcut keys 1 to 4 can be changed.

(Refer to "6-5. Assigning functions to shortcut keys".)

NOTE:

if no operations are carried out for

S-7300A

5. USING THE OPERATION PANEL (BASIC OPERATIONS)

Warning symbol

USB connector

Current program No.

Return key

+ key

OK key

Unlocked

Locked

Thread wiping enabled

Thread wiping disabled

Start backtack enabled Start backtack disabled

5-2-3. Types of icons

The icons which appear in the display can be broadly classified into the following three types.

Type A: Simple symbols <Example>

Type B: Plain touch keys (symbol is always fixed) <Example>

(Returns to the previous

screen)

Type C: Touch keys which change their setting status (symbol) each time they are touched <Example>

Lock key

Thread wiper key

(Increases a value)

(Confirms a value)

Start backtack key

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5. USING THE OPERATION PANEL (BASIC OPERATIONS)

3rd page

5-3. Menu screen

・ Press the key at any screen to return to the home screen. ・ The menu screen consists of the following five screens. ・ Press the or key at a menu screen to change the screen.

1st page

2nd page

4th page

5th page

S-7300A

5. USING THE OPERATION PANEL (BASIC OPERATIONS)

Start backtack sewing parameters

Main sewing parameters (step 1)

Main sewing parameters (step 2)

Main sewing parameters (step 3)

Main sewing parameters (step 20)

End backtack sewing parameters

Program individual functions

5-4. Program setting method

・ It is recommended that you register patterns that are sewn frequently as programs. After programs have been registered,

you can retrieve the desired sewing patterns simply by selecting a program number, which eliminates the need to set the pattern each time.

・ Settings such as sewing pattern, number of stitches, stitch pitch, sewing speed and slow start can be made separately for

each program number.

・ Up to nine programs from P1 to P9 can be registered.

* At the time of shipment from the factory, P1 to P8 have normal sewing programs registered, and P9 has a 4-step fixed

stitch sewing (name label sewing) program registered.

5-4-1. Program structure

・ A single program consists of start backtack parameters, main sewing parameters, end backtack parameters and

individual functions for that program.

Programs P1 to P9

Start backtack

Main sewing

……

End backtack

S-7300A

5. USING THE OPERATION PANEL (BASIC OPERATIONS)

Setting value

Sewing speed

220 - 3000 sti/min

No. of stitches A

1 - 19 stitches

No. of stitches B

1 - 19 stitches

-5 specifications: 0.05 - 5.00 mm

Setting value

-5 specifications: 220 - 4500 sti/min

No. of stitches E

1 - 255 stitches

No. of stitches F

1 - 19 stitches

No. of stitches A

0 - 19 stitches

No. of stitches B

1 - 19 stitches

No. of stitches C

1 - 19 stitches

No. of stitches D

0 - 19 stitches

-3 specifications: 0.05 - 5.00 mm, DS1 - DS5 (design stitches)

-5 specifications: 0.05 - 5.00 mm, DS1 - DS5 (design stitches)

Sewing speed

220 - 3000 sti/min

No. of stitches C

1 - 19 stitches

No. of stitches D

1 - 19 stitches

-3 specifications: 0.05 - 5.00 mm

-5 specifications: 0.05 - 5.00 mm

B A A A A B B B ABCD

E E F D C C C D C D D

(1) Start backtack sewing parameters

Start backtack sewing pattern

Stitch pitch

(2)

Main sewing parameters

Main sewing pattern

Sewing speed

Stitch pitch

(3) End backtack sewing parameters

-3 specifications: 0.05 - 5.00 mm

Normal sewing

Pleat presser sewing Continuous backtacking

Fixed stitch sewing Reverse fixed stitch sewing

-3 specifications: 220 - 5000 sti/min

Setting value

End backtack sewing pattern

Stitch pitch

S-7300A

5. USING THE OPERATION PANEL (BASIC OPERATIONS)

Setting value

Thread trimming operation is carried out when the treadle is depressed backward.

Thread trimming operation by depressing the treadle backward is locked (disabled).

Correction sewing operation using the hand switch is disabled.

Correction sewing operation using the hand switch is enabled.

Best PFM mode enabled (Prev. thread away + T/T short)

(4) Program individual functions

Needle up/down

Thread trimming lock

Thread wiper

Correction sewing

Needle stops in the down position.

Needle stops in the up position.

Thread wiping disabled

Thread wiping enabled

Normal sewing

AUTO

Slow start

Special locus

Best PFM mode

Automatic sewing

Automatic sewing with thread trimming

Slow start disabled at the sewing start

Slow start enabled at the sewing start (1)

Slow start enabled at the sewing start (2)

Slow start enabled at the sewing start (3)

Slow start enabled at the sewing start (4)

The feed dog moves along the standard locus.

The feed dog moves along special locus 1.

The feed dog moves along special locus 2.

The feed dog moves along special locus 3.

Best PFM mode disabled

Best PFM mode enabled (Prev. thread away)

Best PFM mode enabled (T/T short)

X-over seam assist mode

PFM : Performance T/T : Thread Trimming X-over: Cross-over

X-over seam assist mode disabled

X-over seam assist mode enabled

S-7300A

5. USING THE OPERATION PANEL (BASIC OPERATIONS)

Switching to start backtack setting mode

For the detailed home screen

If you keep pressing the start backtack key, the display switches to the start

For the simple home screen

If you keep pressing the start backtack key, the display switches to the start

For the menu screen

Set the start backtack sewing parameters.

backtack sewing speed.

Press the home key to return to the home screen.

Setting value

Setting units

Initial value

Start backtack

－

Sewing speed

220 - 3000 sti/min

100 sti/min

1800

No. of stitches A

1 - 19 stitches

1 stitch

No. of stitches B

1 - 19 stitches

1 stitch

Stitch pitch

-5 specifications: 0.05 - 5.00 mm

0.05 mm

2.00

B A A B A B A B B A (2)

(1)

(3)

(4)

(1)

(2)

5-4-2. Start backtack settings

backtack setting screen.

* Refer to section 6-5 for details on assigning functions to the shortcut keys.

Select "Front BT setting" to switch to start backtack setting mode.

(1) Press the [ ] or [ ] key to select the start backtack pattern. (2) Press the stitch number key to select the number of stitches.

Use the + and - keys to change the number of stitches.

(3) Press the stitch pitch key to select the stitch pitch.

Use the + and - keys to change the value.

(4) Press the sewing speed key to select the start

Use the + and - keys to change the value.

Press the return key to return to the menu screen (or the home screen).

* The settings which are made here are applied to the start backtack key in the home

screen.

Start backtack sewing parameters

sewing pattern

-3 specifications: 0.05 - 5.00 mm

S-7300A

5. USING THE OPERATION PANEL (BASIC OPERATIONS)

Switching to main sewing setting mode

For the detailed home screen

For the simple home screen

For the menu screen

Sett the main sewing parameters.

Press the home key to return to the home screen.

Setting value

Setting units

Initial value

Main sewing

－

Sewing speed

-3 specifications: 220 - 5000 sti/min

100 sti/min

(*1)

No. of stitches E

1 - 255 stitches

1 stitch

No. of stitches F

1 - 19 stitches

1 stitch

No. of stitches A

0 - 19 stitches

1 stitch

No. of stitches B

1 - 19 stitches

1 stitch

No. of stitches C

1 - 19 stitches

1 stitch

No. of stitches D

0 - 19 stitches

1 stitch

Stitch pitch

-3 specifications: 0.05 - 5.00 mm, DS1 - DS5

-5 specifications: 0.05 - 5.00 mm, DS1 - DS5

0.05 mm

2.00

ABCD

E E F

(1)

(3)

(4)

(1)

(2)

5-4-3. Main sewing settings

If you keep pressing the main sewing key, stitch pitch key or sewing speed key, the screen will switch to main sewing setting mode.

If you keep pressing the stitch pitch key or sewing speed key, the screen will switch to main sewing setting mode.

Select "Main portion setting" to switch to main sewing setting mode.

(1) Press the [ ] or [ ] key to select the main sewing pattern. (2) Press the stitch number key to select the number of stitches.

Use the + and - keys to change the number of stitches.

(3) Press the stitch pitch key to select the stitch pitch.

Use the + and - keys to change the value.

(4) Press the sewing speed key to select the main pattern sewing speed.

Use the + and - keys to change the value.

Main sewing parameters

pattern

(*1) For China: 4300 (sti/min)

For Japan and General Export: 4000 sti/min For -3 specifications for Europe and America: 4700 sti/min For -5 specifications for Europe and America: 4500 sti/min

Press the return key to return to the menu screen (or the home screen).

* The settings which are made here are applied to the main sewing key in the home screen.

-5 specifications: 220 - 4500 sti/min

S-7300A

5. USING THE OPERATION PANEL (BASIC OPERATIONS)

Switching to end backtack setting mode

For the detailed home screen

If you keep pressing the end backtack key, the display switches to the end

For the simple home screen

If you keep pressing the end backtack key, the display switches to the end

For the menu screen

Set the end backtack sewing parameters.

Press the sewing speed key to select the end backtack sewing speed. Use

Press the home key to return to the home screen.

Setting value

Setting units

Initial value

End backtack

－

Sewing speed

220 - 3000 sti/min

100 sti/min

1800

No. of stitches C

1 - 19 stitches

1 stitch

No. of stitches D

1 - 19 stitches

1 stitch

Stitch pitch

-5 specifications: 0.05 - 5.00 mm

0.05 mm

2.00

D C D C C D C D D C (2)

(3)

(4)

(1)

(2)

(1)

5-4-4. End backtack settings

backtack setting screen.

* Refer to section 6-5 for details on assigning functions to the shortcut keys.

Select "End BT setting" to switch to end backtack setting mode.

(1) Press the [ ] or [ ] key to select the end backtack pattern. (2) Press the stitch number key to select the number of stitches.

Use the + and - keys to change the number of stitches.

(3) Press the stitch pitch key to select the stitch pitch.

Use the + and - keys to change the value.

(4)

the + and - keys to change the value.

Press the return key to return to the menu screen (or the home screen).

* The settings which are made here are applied to the end backtack key in the home screen.

End backtack sewing parameters

sewing pattern

-3 specifications: 0.05 - 5.00 mm

S-7300A

5. USING THE OPERATION PANEL (BASIC OPERATIONS)

Program individual

functions

5-5. Using program individual functions and program common functions

・ In addition to start backtack sewing, main sewing and end backtack sewing, the following 9 types of functions are also

included in the parameters which are necessary for sewing. Needle up/down, thread trimming lock, thread wiping, correction sewing, AUTO, slow start, special locus, best PFM mode, auto X-over seam assist mode.

・ Of these 9 types of functions, the functions which can be set separately for each program are called "program individual"

functions.

* When an assignment is made to a program individual function, a "P" symbol appears in the top-left corner of the icon.

On the other hand, the functions which can be set in common for all programs (P1 to P9) are called "program common" functions.

・ Each of the 9 types of functions can be set to be used as either a program individual function or a program common

function. (Memory switches MSW-301 to MSW-309)

At the time of shipment from the factory, the settings are as follows.

Needle up/down

Thread trimming lock

Thread wiper

Correction sewing × ○

AUTO ○ ×

Slow start × ○

Special locus

Best PFM mode

X-over seam assist mode

Program common function

× ○

○ ×

S-7300A

5. USING THE OPERATION PANEL (BASIC OPERATIONS)

Needle stops in the down position.

depressed backward, and after thread trimming (needle raised) during automatic sewing.

Thread trimming operation is carried out when the treadle is

Thread trimming operation by depressing the treadle backward is * If thread trimming operation is disabled, thread wiping operation

5-5-1. Needle up/down

This sets whether the needle bar stops in the up position or the down position when the treadle is returned to the neutral position and sewing stops.

Setting details

However, the needle will stop in the up position when the treadle is

Needle stops in the up position.

5-5-2. Thread trimming lock

This sets the thread trimming operation when the treadle is depressed backward.

Setting details

depressed backward.

locked (disabled).

5-5-3. Thread wiper

Thread wiping operation can be set.

Setting details

Thread wiping operation is disabled after thread trimming.

Thread wiping operation is enabled after thread trimming.

will also be disabled.

S-7300A

5. USING THE OPERATION PANEL (BASIC OPERATIONS)

Correction sewing operation using the hand switch is disabled.

Operating the hand switch may result in an operation other than

correction sewing. (Refer to "6-10. Hand switches".)

Correction sewing operation using the hand switch is enabled.

If the sewing machine is stopped, sewing will be carried out at

* The operation mode can be changed to correction sewing.

(Refer to "6-10. Hand switches".)

Automatic sewing is not carried out, and sewing stops when the

Sewing is carried out automatically for the number of stitches which have been set (start and end backtacking and fixed stitch

After sewing is complete, depress the treadle backward to carry out thread trimming.

Sewing is carried out automatically for the number of stitches which have been set (start and end backtacking, fixed stitch

After sewing is complete, thread trimming is carried out automatically.

5-5-4. Correction sewing

Correction sewing operation can be set.

Setting details

NOTE:

correction sewing being carried out. * The operation mode can be changed to a different mode from

slow speed while the hand switch is being pressed.

5-5-5. AUTO

Automatic sewing and thread trimming operations can be set. However, they can only be set in conjunction with continuous backtack sewing and fixed stitch sewing.

Setting details

treadle is returned to the neutral position.

sewing) simply by depressing the treadle once.

sewing, thread trimming) simply by depressing the treadle once.

S-7300A

5. USING THE OPERATION PANEL (BASIC OPERATIONS)

Sewing is carried out according to slow start pattern 1.

4th stitch: 4000sti/min

Sewing is carried out according to slow start pattern 2.

4th stitch: 4000sti/min

Sewing is carried out according to slow start pattern 3.

4th stitch: 4000sti/min

Sewing is carried out according to slow start pattern 4 (original

4th stitch: Speed set by memory switch MSW-406

5-5-6. Slow start

The slow start pattern at the sewing start after thread trimming can be set.

Setting details

5-5-7. Special locus

Sewing is carried out without slow start operation.

1st stitch: 400sti/min 2nd stitch: 400sti/min 3rd stitch: 400sti/min

1st stitch: 400sti/min 2nd stitch: 400sti/min 3rd stitch: 4000sti/min

1st stitch: 700sti/min 2nd stitch: 700sti/min 3rd stitch: 4000sti/min

pattern).

1st stitch: Speed set by memory switch MSW-403 2nd stitch: Speed set by memory switch MSW-404 3rd stitch: Speed set by memory switch MSW-405

The feed dog locus can be set. (Refer to "8-3. Using the feed dog locus".)

Setting details

The feed dog moves along the standard locus.

The feed dog moves along special locus 1.

The feed dog moves along special locus 2.

The feed dog moves along special locus 3.

S-7300A

5. USING THE OPERATION PANEL (BASIC OPERATIONS)

Both the "Prev. thread away" function and the "T/T short" function

X-over seam assist is enabled.

over seam, the sewing speed, feed locus, feed timing and stitch pitch are changed to the special settings for X-over seam sewing.

5-5-8. Best PFM mode

The treadle can be set to turn the functions for preventing the thread from pulling out ("Prev. thread away" function) and the function for preventing short thread trailing lengths ("T/T short" function) on and off. (The "Prev. thread away" function is added at the sewing start, and the "T/T short" function is added after thread trimming operation.)

Setting details

are disabled.

The thread pull-out prevention function is enabled.

The "T/T short" function is enabled.

are enabled.

5-5-9. X-over seam assist mode

X-over seam sewing using the X-over seam sensor can be set to on or off.

Setting details

X-over seam assist is disabled (normal sewing is carried out).

When the X-over seam sensor detects an X-

S-7300A

5. USING THE OPERATION PANEL (BASIC OPERATIONS)

Switching to production counter editing mode

For the detailed home screen

Set the counter display so that it is displaying the production counter icon, and then keep pressing the production counter key to switch to production counter

For the simple home screen

For the menu screen

Use the + and - keys to change the value of the production counter (1).

If you press the OK key, the value will be confirmed and the display will

(1)

5-6. Using the production counter

・ The production counter can be used to let you know how many items have been sewn. ・ The production counter increases by 1 each time thread trimming is carried out.

editing mode.

Keep pressing the production counter key to switch to production counter editing mode.

Select "Production counter editing" to switch to the production counter editing screen.

・

When the value is changed, the production counter (1) will flash.

・ If you would like to return the setting to "0000", press the Clear key. ・

return to the home screen.

S-7300A

5. USING THE OPERATION PANEL (BASIC OPERATIONS)

Switching to lower thread counter setting mode

For the detailed home screen

Set the counter display so that it is displaying the lower thread counter icon, and then keep pressing the lower thread counter key to switch to lower thread

For the simple home screen

thread counter key to switch to lower thread counter

For the menu screen

Select "Bobbin thread counter setting" to switch to lower thread counter setting

You can use the ON/OFF key to turn the counter function on and off.

You can press the Reset key to provisionally reset the value to the one

ey, the value will be confirmed and the display will

(1)

5-7. Using the lower thread counter

・ The lower thread counter can be used to let you know approximately how much lower thread is remaining.

* The lower thread counter should be used as a guide only.

・ The value displayed by the lower thread counter display is reduced by 0.1 from the initial setting value each time the

number of stitches x sewing pitch reaches 0.1 m, and a warning is given when the counter goes below 0.

counter setting mode.

Keep pressing the lower setting mode.

mode.

・

* When the function is turned off, "---" will appear in the counter display (1)

and the counter will not operate while sewing is carried out.

・ Use the + and - keys to set the value for the lower thread counter.

When the value is changed, the lower thread counter (1) will flash. The setting range is from 0.1 to 99.9 m.

・

which was set previously (only if the counter function was turned on).

・ If you press the OK k

return to the home screen.

S-7300A

5. USING THE OPERATION PANEL (BASIC OPERATIONS)

When sewing is carried out, the value shown in the lower thread counter display is reduced by 0.1 each time the number of stitches x sewing pitch reaches 0.1 m. However, the display is only updated when the treadle is returned to the neutral position.

1. If the lower thread counter has dropped to below 0 when the sewing machine stops sewing, the warning buzzer sounds 5 times (1 second on/1 second off), and a lower thread counter warning message is displayed.

* Sewing will not be possible even if the treadle is

depressed forward.

2. <If replacing the bobbin> (1) Depress the treadle backward to trim the thread. (2) Replace the bobbin. (3) Press the Reset key.

* The lower thread counter value will return to the value

which was previously set.

(1) Press the return key.

* The lower thread counter value will remain unchanged.

3. The display will return to the screen which was being displayed before the lower thread counter out warning appeared, and sewing will be possible.

1. If the lower thread counter has dropped to below 0 after sewing is complete, the warning buzzer sounds 5 times (1 second on/1 second off), and a lower thread counter warning message is displayed.

* Sewing will not be possible even if the treadle is

depressed forward.

2. Replace the bobbin.

3. Press the Reset key.

* The lower thread counter value will return to the value

which was previously set.

4. The display will return to the screen which was being displayed before the lower thread counter out warning appeared, and sewing will be possible.

S-7300A

5. USING THE OPERATION PANEL (BASIC OPERATIONS)

Switching to home screen mode setting mode

At the menu screen, select "Home screen mode setting" to switch to home

Use the + and - keys to set the value (1) for the mode.

5-8. Home screen mode setting

・ You can select from two different types of home screen display: the detailed home screen or the simple home screen.

* When the home screen is displayed, you can keep pressing the key to switch between home screens.

screen mode setting mode.

(1)

・ Press the return key to return to the menu screen. ・ Press the home key to return to the home screen which has been set.

S-7300A

5. USING THE OPERATION PANEL (BASIC OPERATIONS)

Switching to illumination LED brightness setting mode

For the detailed home screen

Keep pressing the "LED brightness" key to switch to illumination LED

For the simple home screen

Keep pressing the "LED brightness" key to switch to illumination LED

For the menu screen

Select "LED brightness setting" to switch to illumination LED brightness setting

Use the + and - keys to set the value for the brightness level (1).

5-9. Illumination LED brightness setting

The brightness of the illumination LED can be set.

brightness setting mode.

mode.

(1)

The setting range is from 1 to 9.

・ Press the home key to return to the home screen. ・ Press the return key to return to the menu screen (or the home screen).

* Once the value for the brightness level is changed, the status will be

displayed when you return to the home screen, even if the status was being displayed previously.

S-7300A

6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)

Switching to add/delete step mode

1. At the menu screen, select "Program setting" to switch to program setting

in program setting mode, select "Add/Delete step" to switch to

stitch sewing or reverse fixed stitch sewing is not selected, it will not be possible to switch to this

mode.

The program number (1), step number (2), sewing pattern and cursor (blue

However, if the number of steps has already reached 20, no further steps

Press the return key to return to the program setting screen.

in the step which is currently being sewn will be completed, and then sewing

(1) ④ ③

(2)

(3)

(4)

6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)

6-1. Adding and deleting steps

You can put together programs, such as the one shown in the illustration at right for pocket sewing, by registering multiple steps in the main sewing section.

mode.

2. Next, add/delete step mode.

S-05

S-01

S-02 S-03

S-04

Steps can be added (up to a maximum of 20 steps) to or deleted (to a minimum of 1 step) from the currently-selected program. However, if fixed

・

box) for the currently-selected program are displayed.

・ Press the or key to change the cursor position.

★ When adding a step

Press the key (3) to add a step after the current cursor position. The sewing pattern for the added step will be the fixed stitch sewing pattern.

can be added.

★ When deleting a step

Press the key (4) to delete the step at the current cursor position. However, if only 1 step is remaining, the delete key will be disabled.

Press the menu key to return to the menu screen. Press the home key to return to the home screen.

* When more than one step had been added for sewing, the number of stitches

will continue on to the next step.

S-7300A

6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)

Switching to main sewing setting mode

From the detailed home screen

Keep pressing the main sewing key (1) to switch to main sewing setting

From add/delete step mode

Press the pattern (2) for the step number to be edited to switch to main

Set the main sewing parameters.

Press the return key to return to the previous screen.

Setting value

Setting units

Initial value

Main sewing

－

Sewing speed

-3 specifications: 220 - 5000 sti/min

-5 specifications: 220 - 4500 sti/min

100 sti/min

(*1)

No. of stitches E

1 - 255 stitches

1 stitch

Stitch pitch

-3 specifications: 0.05 - 5.00 mm, DS1 - DS5

-5 specifications: 0.05 - 5.00 mm, DS1 - DS5

0.05 mm

2.00

Linking

－

(2)

(1) E E E (2)

(1)

(3)

(4)

(1)

(5)

6-2. Editing steps

The number of stitches and sewing pitch can be changed separately for each step.

・ Press the or key to select the step number to be edited. ・

mode.

・ Press the or key to display the number of the step to be edited. ・

sewing setting mode.

Main sewing parameters when several steps exist

pattern

(1) Press the or key to select the main sewing pattern. (2) Press the stitch number key to select the number of stitches.

(3) Press the stitch pitch key to select the stitch pitch. Use the + and - keys to

(4) Press the sewing speed key to select the main pattern sewing speed.

(5) Press the link key to switch linking between enabled and disabled.

: No linking with next step : Linking with next step

Use the + and - keys to change the number of stitches.

change the value.

Use the + and - keys to change the value.

(*1) For China: 4300 (sti/min)

For Japan and General Export: 4000 sti/min For -3 specifications for Europe and America: 4700 sti/min For -5 specifications for Europe and America: 4500 sti/min

S-7300A

6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)

Switching to sewing start step setting mode

1. At the detailed home screen, press the menu key.

At the menu screen, select "Program setting" to switch to program setting

Next, in program setting mode, select "Step setting for start" to switch to

Select the step number for the step where you would like sewing to start

The step number (1) for starting sewing will be displayed. Depress the treadle to start sewing from that step. When sewing is

number (1) is cleared and the display returns

* If the program number is changed or the power is turned off and back on,

the sewing start step number (1) will be cleared even if sewing is not

(1)

6-3. Sewing start step setting

If sewing is interrupted by a problem such as a thread breakage occurring and you need to resume sewing from the point where sewing was interrupted, you can start sewing from the middle of a step.

2. mode.

3. sewing start step setting mode.

・

from.

・・

finished, the sewing start step to the normal detailed home screen.

carried out.

S-7300A

6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)

Switching to program copy mode

1. At the menu screen, select "Program setting" to switch to program setting

Next, in program setting mode, select "Program copy" to switch to program

After switching to program copy mode, the program number which is currently selected is displayed as the copying source program number (1)

key (3) to select the copying source program number

Press the return key to return to the program setting screen.

(3)

(4)

(1)

(2)

6-4. Program copy

To create a program with parameters that are almost exactly the same as those of another program, you can copy the original program and change just the parts which need to be changed.

mode.

2. copy mode.

・

and as the copying destination program number (2).

・ Press the or

(1).

・ Press the or key (4) to select the copying destination program

number (2).

・ When you press the OK key, the program will be copied.

* At this time, the copy destination program number will be the program

number which is currently selected.

Press the menu key to return to the menu screen.

S-7300A

6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)

At the menu screen, select "Short cut key setting" to switch to shortcut key

1. At the shortcut key setting mode (key selection) screen, select the shortcut

2. At the shortcut key setting mode (function selection) screen, select the

After a shortcut key has been assigned, press the home key to return to the

6-5. Shortcut key assignment method

You can assign functions to the 4 shortcut keys which are displayed on the simple home screen. Initially, the start backtack key, end backtack key, slow start key and thread trimming lock key are assigned.

setting mode.

key (1 to 4) which you would like to assign a function to.

function which you would like to assign to the shortcut key. The currently-selected icon will be enclosed in a blue box.

simple home screen. The icon for the function which has been assigned to the shortcut key will be displayed in this screen.

S-7300A

6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)

Switching to add/delete step mode

1. At the menu screen, select "Design stitch registration" to switch to the

Group 1

DS-1

Group 2

Group 3

Group 4

Group 1

DS-1

Group 2

6-6. Design stitch registration method

Up to 5 different types of design stitches (DS-1 to DS-5), each one consisting of several different pitch groups (up to a maximum of 8 groups), can be registered. A single group can be set to contain up to a maximum of 20 stitches with the same stitch pitch. This section shows an example of how to register a design stitch which contains the following eight kinds of stitches into DS-1.

1mm×3 stitch

2mm×2 stitch

4mm×1 stitch

2mm×2 stitch

1mm×3 stitch

2mm×2 stitch

design stitch registration (number selection) screen.

2. Next, select the design stitch number to be registered from DS-1 to DS-5.

S-7300A

6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)

The design stitch number (1) to be registered will be displayed.

key to change the number of stitches (3) for group 1 to 3

For group 2, set the sewing pitch (4) to 2.00 mm and the number of

For group 4, set the sewing pitch (8) to 2.00 mm and the number of

Press the return key to return to the design stitch registration (number

(1)

(2)

(3)

(4)

(5)

(8)

(9)

(6)

(7)

(10)

1. Press the or key to change the group number (1).

2. Press the + or - key to set the stitch pitch (2) for group 1 to 1.00 mm. The stitch pitch can be set to between 0.05 mm and 5.00mm. The initial setting is 2.00 mm.

3. Touch the number of stitches (3) for group 1.

4. Press the + or stitches.

The number of stitches can be set to between 0 and 20 stitches. The initial setting is 1 stitch.

★In order to sew design stitches, it is necessary to put the design stitches registered above into a program.

1. At the home screen, select the desired program number.

2. The display will switch to the main sewing setting screen.

3. Select the stitch pitch, and then press the + or - key to set the desired design stitch.

* For DS1 to DS5, the maximum stitch pitch is displayed as follows.

4. Press the home key to return to the home screen.

5. Change the following in the same way.

stitches (5) to 2; For group 3, set the sewing pitch (6) to 4.00mm and the number of stitches (7) to 1;

stitches (9) to 2; For group 5, change the number of stitches (10) to "-" (no stitches). * If the number of stitches is set to "-", all of the subsequent numbers of

stitches will be set to "-".

6. selection) screen. Press the menu key to return to the menu screen. Press the home key to return to the home screen.

S-7300A

6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)

Switching to working pace setting mode

key to switch to

* The target counter cannot be edited. The target counter can be reset to

The working pace (2) will be displayed. The working pace can be set to

value. If the setting is changed to a value which is different to the value

To confirm the setting and exit, press the OK key.

(2)

(1)

6-7. Working pace setting method

・ The target counter can be used to let you know the state of work progress. ・ The target counter increases by 1 each time the time set as the working pace has elapsed.

However, counting is not carried out during the period from when the power is turned on until sewing starts.

・ In production counter editing mode, press the

working pace setting mode.

"0000" only by clearing the production counter.

In this mode, you can set the pace at which the target counter increases.

* If the operating status (1) for the target counter is set to OFF, the target counter function will not operate.

It will not be possible to set the working pace at this time either.

・ I Press the key (1) to set the operating status to , so that the

working pace can be set.

between 00'01" and 59'59".

・ Press the + key to increase the value, and press the - key to decrease the

which was set previously, the time display will flash. If you would like to return the setting to the value which was set previously, press the Reset key.

・

The working pace will be confirmed and the mode will return to production counter setting mode.

・ To exit without confirming the setting, press the return key.

The mode will return to production counter editing mode.

S-7300A

6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)

At the menu screen, select "Memory switch setting" to switch to memory switch

1. Press the or key to select the memory switch number (1).

If the value that is displayed is different from the value that is currently set,

If you would like to return the setting to the initial value, press the Reset

Press the OK key to store the memory switch setting. The setting display

Press the return key to return to the menu screen.

6-8. Memory switch setting method (Standard)

・ The settings for the memory switches are valid for all programs.

(1)

(2)

setting mode.

At this time, keep pressing the half stitch key and then press the or key at the same time to select only the memory switches with current values that are different from their initial values.

2. Press the or key to change the memory switch value (2).

the value in the display will flash.

key. * The Reset key is only displayed when the setting value (the value being

displayed) is different from the initial value.

3. will change from flashing to illuminated.

S-7300A

6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)

Initial value

Setting

units

001

ON/OFF

(*1)

When treadle is returned to neutral after thread trimming, presser foot is

(Refer to the Service Manual for details on MSW-851.)

002

ON/OFF

OFF

After treadle stops at neutral, presser foot is raised up

OFF: Presser foot is not lifted

003

ON/OFF

After treadle stops at neutral, presser foot is possible to raised up when

OFF: Disabled

004

ON/OFF

When treadle depressed backward, thread trimming and end backtack

(However, if thread trimming operation is locked, needle up operations

(presser foot lifts when the treadle is depressed backward)

010

ON/OFF

OFF

After standing up pedal is used, treadle operation is possible.

(*) For simultaneous operation which includes operation of the presser foot

used

011

0 - 1

Operation when standing up variable speed pedal is ON

(constant speed)

012

0 - 500

80 (ms)

013

ON/OFF

When AUTO function is set ON, pauses when presser foot pedal is ON. ON: Sewing is interrupted when presser foot lifter pedal turns on (pause

OFF: No operation

014

ON/OFF

When AUTO function is set ON, it can be changed ON/OFF of motor

speed pedal is

OFF: Disabled (sewing machine motor does not stop)

015

ON/OFF

After thread trimming, possible to lift up and down by thread trimming

051 is set to "ON", thread trimming pedal operation is disabled

after the presser foot lifter pedal has been operated during standing

OFF: No operation (only possible using presser foot lifter pedal)

6-9. List of memory switch settings

Presser foot lifter and treadle settings (001 to 099)

No. Setting range

Setting details

－

raised up ON: Presser foot is raised OFF: Presser foot is not raised (*) The presser foot lifts when MSW-851 is set to "OFF".

－

ON: Presser foot lifts

－

treadle depressed one step backward. ON : Enabled

－

sewing is possible. ON: Thread trimming and end backtack sewing operations are enabled

will be carried out without thread trimming.)

OFF: Thread trimming and end backtack sewing operations are disabled

－

(Alternating operation is possible)

lifter pedal, operation of the standing operation pedal takes priority. ON: Treadle operation is still enabled after standing operation pedal has

been used (alternating operation is possible)

OFF: Treadle operation is disabled after standing operation pedal has been

(ms)

(*1) Other than Europe and America: ON

Europe and America: OFF

(ms)

－

0: Sewing speed corresponds to treadle depression amount 1: Sewing speed corresponds to sewing speed set for main sewing

Delay time from standing pedal turning on until motor starts operating

operation)

operation by slightly pressing high speed pedal. ON: Motor operation switches on/off each time the high-

depressed slightly to ON and back to OFF

pedal ON: Presser foot can be raised and lowered (*) If MSW-

operation. (Refer to the Service Manual for details on MSW-051.)

S-7300A

6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)

Setting

units

100

OFF, 1 - 3

OFF

Slow control after sewing start

3: Usual operation

101

1 - 5

Degree of slow startup immediately after sewing start

* This is not displayed when MSW-100 is set to "OFF".

102

-10 - 10

Needle up stop position correction value

103

-10 - 10

Needle down stop position correction value

Setting

units

200

50 - 150%

100

Forward direction pitch correction ratio

201

50 - 150%

100

Reverse direction pitch length correction ratio

Sewing machine motor settings (100 to 199)

No. Setting range Initial value

(Degrees) 0 (Degrees)

Feed motor settings (200 to 299)

No. Setting range Initial value

Setting details

OFF: Disabled 1: Only at the sewing start after thread trimming 2: Only when sewing is restarted

(A larger number means a slower startup)

Setting details

S-7300A

6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)

Initial value

Setting

units

300

1 - 2

Movement when bobbin counter warning.

2: Sewing is only possible when lower thread counter is reset after replacing

the bobbin.

301

0, 1

Program common function / program individual function settings

1: Program individual function

302

0, 1

1: Program individual function

303

0, 1

1: Program individual function

304

0, 1

1: Program individual function

305

0, 1

1: Program individual function

306

0, 1

Program common function / program individual function settings

1: Program individual function

307

0, 1

Program common function / program individual function settings

1: Program individual function

308

0, 1

Program common function / program individual function settings

1: Program individual function

309

0, 1

Program common function / program individual function settings

1: Program individual function

310

OFF,

Automatic panel lock ON standby time

If any other screen is displayed, the panel lock does not operate.

311

OFF, ON

Panel auto lock when turn on power

ON : Enabled

Panel operation settings (300 to 399)

No. Setting range

Setting details

1: Sewing can continue by pressing the return key

Needle up/ down 0: Program common function

1 Program common function / program individual function settings

Thread trimming lock 0: Program common function

1 Program common function / program individual function settings

Thread wiper 0: Program common function

1 Program common function / program individual function settings

Correction sewing 0: Program common function

1 Program common function / program individual function settings

AUTO/ auto thread trimming 0: Program common function

30 - 300

(sec)

Slow start 0: Program common function

Special locus 0: Program common function

Best PFM mode 0: Program common function

X-over seam assist mode 0: Program common function

OFF: Automatic panel lock is disabled 30 - 300: Panel open time before panel lock turns on (sec) * The standby time is only counted at the home screen.

－

OFF: Disabled

S-7300A

6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)

Initial value

Setting

units

400

ON/OFF

OFF

Stopping during start backtacking and sewing speed ON: When the treadle is returned to the neutral position, start backtacking

can be stopped before it is finished, and the speed during start backtacking becomes the speed corresponding to the treadle

ends, sewing stops and the sewing speed becomes the start backtacking speed (constant)

401

ON/OFF

Feed direction when sewing machine motor is stopped immediately after

the sewing machine motor stops.

402

1 - 2

Fixed stitch sewing load FUNC when stitch control in reverse direction.

2: Fixed stitch sewing when hand switch is ON

403

300 - 4000

(sti/min)

4000

100

1st stitch sewing speed for slow start original pattern

404

300 - 4000

(sti/min)

4000

100

2nd stitch sewing speed for slow start original pattern

405

300 - 4000

(sti/min)

4000

406

300 - 4000

(sti/min)

4000

407

ON/OFF

OFF

Synchronize with main pitch of backtack sewing pitch

OFF: Not synchronized

Initial value

Setting

units

500

OFF, 1 - 3

Presser foot lifter SW function

* If set to puller switch, the presser foot lifting function using the switch is

disabled.

Sewing program settings (400 to 499)

No. Setting range

Setting details

－

depression amount (low speed - start backtacking speed)

OFF: When the treadle is returned to the neutral position, start backtacking

－

start backtacking is complete OFF: Sewing machine motor stops after start backtacking is

complete

* If MSW-400 is set to "OFF", operation occurs when the treadle

is depressed slightly.

ON: After start backtack sewing, the feed moves forward, then

1: Reverse stitch sewing when hand switch is ON

100 3rd stitch sewing speed for slow start original pattern

100 4th stitch sewing speed for slow start original pattern

Standard device settings (500 to 599)

No. Setting range

－

ON: Synchronized

Setting details

OFF: Disabled 1: Presser foot lifter switch 2: Puller switch (alternate) 3: Puller switch (momentary) * Puller operation is enabled when MSW-960 is set to "1" (it does not

operate when set to other than "2" or "3"). (Refer to the Service Manual for details on MSW-960.)

S-7300A

6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)

OFF: <Disabled>

1: <Single stitch correction sewing at 2nd correction

* Set the 2nd correction pitch separately.

1: <Single correction sewing>

2: <Continuous correction sewing at 2nd correction

* Set the 2nd correction pitch separately.

2: <One pitch /Continuous correction sewing>

sewing continues.

3: <Single correction sewing>

Stops after sewing a single stitch

3: <Continuous correction sewing>

If the switch is kept pressed, sewing continues.

4: <Continuous correction sewing>

4: <Single stitch correction sewing at 2nd correction

* Set the 2nd correction pitch separately.

5: <Reverse single correction sewing>

5: <One pitch at second correction pitch/ continuous

* Set the 2nd correction pitch separately.

6: <Reverse continuous correction sewing>

6: <Continuous correction sewing at 2nd correction

* Set the 2nd correction pitch separately.

7: <Single correction sewing>

Stops after half stitch sewing

7: <Reverse single correction sewing>

Stops after sewing a single stitch

8: <Reverse one pitch/ reversed continuous

sewing continues.

9: <Reverse continuous correction sewing>

If the switch is kept pressed, sewing continues.

10: <Single correction sewing>

Stops after half stitch sewing

0936D

6-10. Hand switches

There are two types of hand switch: Type A and type B. The following functions can be assigned to each one. * However, they cannot both be pressed at the same time. (The one which was pressed first will be activated.) The input for hand switch A is in 8 steps, and the input for hand switch B is in 3 steps (off, half-pressed and fully-pressed). (The operation of the hand switches will vary depending on the status of the correction sewing icon.)

Hand switch A (initial value: 1) Hand switch B (initial value: 1)

Hand switch A

Hand switch B

Settings for

correction

sewing

switch

pitch>

Stops after sewing a single stitch

pitch>

If the switch is kept pressed, sewing continues.

Stops after sewing a single stitch

If the switch is kept pressed, sewing continues.

Stops after sewing a single stitch

Half pressed: Stops after sewing a single stitch Fully pressed: If the switch is kept pressed,

pitch> Stops after sewing a single stitch

correction sewing> Half pressed: Stops after sewing a single stitch Fully pressed: If the switch is kept pressed, sewing continues.

pitch> If the switch is kept pressed, sewing continues.

correction sewing> Half pressed: Stops after sewing a single stitch Fully pressed: If the switch is kept pressed,

* These settings are enabled when the correction sewing icon is illuminated ( ).

S-7300A

6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)

OFF: <Disabled>

1: <Variable pitch (reverse is available)>

Sewing pitch changes from main pitch to reverse

pressed.

1: <Reverse>

2: <Variable pitch (reverse unavailable)>

Sewing pitch changes from main pitch to 0 pitch

2: <Second pitch/ reversed>

Fully pressed: Feed moves in reverse while the

* Set the second pitch separately.

3: <Reverse>

Feed moves in reverse while the switch is being

3: <Second Pitch>

Changes to 2nd pitch while the switch is being

* Set the second pitch separately.

4: <Second Pitch>

Changes to 2nd pitch while the switch is being

* Set the second pitch separately.

4: <Second Pitch (switching)>

* Set the second pitch separately.

5: <Second Pitch (switching)>

Switches between second pitch and main pitch

5: <X-over seam assist>

Changes to special locus 3 while the switch is being pressed.

6: <X-over seam assist>

Changes to special locus 3 while the switch is being pressed.

6: <Auto X-over seam assist (switching)>

over assist parameters

7: <Auto X-over seam assist (switching)>

over assist parameters

7: <Thread trimming>

a thread trimming switch even if the

correction sewing icon is turned on.

8: <Thread trimming>

correction sewing icon is turned on.

8: <Presser foot lifter>

If the switch is pressed while tread trimming is

9: <Presser foot lifter>

If the switch is pressed while tread trimming is

9: <Presser foot lifter (switching)>

While tread trimming is stopped, the presser foot

pressed.

10: <Presser foot lifter (switching)>

While tread trimming is stopped, the presser

lowered each time the switch

is pressed.

Hand switch A (initial value: 4) Hand switch B (initial value: 1)

Feed moves in reverse while the switch is being

main pitch depending on how far the switch is

pressed.

Half pressed: Changes to 2nd pitch while the

depending on how far the switch is pressed.

switch is being pressed.

Settings for

other than correction

sewing

switch

pressed.

each time the switch is pressed.

* Set the second pitch separately.

X-over seam assist is carried out while the switch is being pressed. Special locus 3 and X-over assist parameters are used during X-over seam sewing.

Switches between X-over seam assist and normal sewing each time the switch is pressed. Special locus 3 and Xare used during X-over seam assist.

When the switch is pressed, thread trimming is carried out.

* When this function is selected, the hand switch

operates as a thread trimming switch even if the

pressed.

Switches between second pitch and main pitch each time the switch is pressed.

X-over seam assist is carried out while the switch is being pressed. Special locus 3 and X-over assist parameters are used during X-over seam sewing.

Switches between X-over seam assist and normal sewing each time the switch is pressed. Special locus 3 and Xare used during X-over seam assist.

When the switch is pressed, thread trimming is carried out.

* When this function is selected, the hand switch

operates as

stopped, the presser foot is raised.

foot is raised and

* These settings are enabled when the correction sewing icon is turned off ( ).

is raised and lowered each time the switch is

S-7300A

6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)

At the menu screen, select "Hand switch setting" to switch to hand switch

Select the desired menu.

For example, to set hand switch A so that it operates as a correction sewing

Press the or key to select the desired setting.

6-10-1. Hand switch function setting

setting mode.

switch:

1. Select "Hand switch A function setting".

2. Next, select "Correction sewing function".

・ Press the return key to return to the previous screen. ・ Press the menu key to return to the menu screen.

S-7300A

6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)

At the hand switch setting screen, select "Correction 2nd pitch ratio".

Use the + or + key to set the ratio (1) with respect to the current pitch.

At the hand switch setting screen, select "2nd pitch ratio".

Use the + or + key to set the ratio (1) with respect to the current pitch.

6-10-2. 2nd correction pitch setting

Normally, correction sewing is carried out at the currently-set sewing pitch. However, when "Correction sewing at 2nd correction pitch" is set for carrying out correction sewing, then correction sewing is carried out at the pitch which is set below.

(1)

The setting range is from 10% to 250%.

・ Press the return key to return to the previous screen. ・ Press the menu key to return to the menu screen.

6-10-3. 2nd pitch setting

If "2nd pitch" has been set and the hand switch is pressed during sewing, the stitch pitch will change to the pitch set as follows.

(1)

The setting range is from 10% to 250%.

・ Press the return key to return to the previous screen. ・ Press the menu key to return to the menu screen.

S-7300A

6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)

CAUTION

Do not connect anything to the USB port other than the USB memory. If this is not observed, problems with

1. First connect the USB media to the sewing machine. At the menu screen, select "USB media read/write" to switch to USB media

(1) The currently-selected read/write item and illustration are displayed, so

Press the OK key to run the selected read/write item. The read/write in

* If no USB media is connected at this time, the message "USB media can not

Code

Setting item

Read/write direction

Read all programs

USB media → (Panel) →Sewing machine

Write all programs

USB media ← (Panel) ←Sewing machine

Read all memory switches

USB media → (Panel) →Sewing machine

Write all memory switches

USB media ← (Panel) ←Sewing machine

Read all data

USB media → (Panel) →Sewing machine

Write all data

USB media ← (Panel) ←Sewing machine

Write production information

USB media ← (Panel) ←Sewing machine

Write error log

USB media ← (Panel) ←Sewing machine

(1)

(2)

Data type

Filename

Folder name

¥BROTHER¥ISM¥ISMDF**¥

for details on MSW-750.)

Memory switches

ISMMSW.SEW

Same as above

Cycle programs

ISMCYC.SEW

Same as above

Program common functions

ISMCOM.SEW

Same as above

Design stitches

ISMDST.SEW

Same as above

Hand switch

ISMHSW.SEW

Same as above

E*******.LDT M*******.LDT

¥BROTHER¥ISM¥ISMLDT¥

Production data

P*******.LDT

Same as above

6-11. Reading and writing data using USB media

Programs and memory switch data can be copied between sewing machines by means of USB media.

operation may result.

The read/write items that can be selected are as follows.

Creating folders for USB media

2. read/write mode.

* Multi card readers may not be recognized correctly.

press the or key to change the read/write item.

(2)

progress screen will be displayed.

be detected." will be displayed.

・ Press the return key to return to the setting menu.

Program ISMUPG.SEW

Error log

S-7300A

(** is the value for MSW-750) (Refer to the Service Manual

6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)

Switching to initialization mode and initialization method

1. While pressing the home key, turn on the power to switch to the

When you select an item to be initialized, the "Are you sure you want to

When initialization is complete, the display will return to the

To exit from the initialization menu screen

At the initialization menu screen, press the home key to close the initialization

6-12. Resetting all settings to their defaults

If the sewing machine stops operating normally, the cause may be that an incorrect setting may have been made for the memory data by means of memory switches, for instance. In such cases, it may be possible to restore normal operation by following the steps given below to initialize the stored data.

initialization menu screen.

2. At the initialization menu screen, you can select the items to be initialized.

3. initialize?" confirmation screen will be displayed. Press OK to carry out the initialization. initialization menu screen.

menu and switch to the home screen.

S-7300A

7. SEWING

CAUTION

Attach all safety devices before using the sewing machine. If the machine is used without these devices attached,

Do not touch any of the moving parts or press any objects against the machine while sewing, as this may result in

s, it may crush your

Use both hands to hold the machine head when tilting it back or returning it to its original position. If only one hand

0900D

(1)

0898D

7. SEWING

injury may result.

Turn off the power switch at the following times. The machine may operate if the treadle is depressed by mistake, which could result in injury.

 When threading the needle  When replacing the bobbin and needle  When not using the machine and when leaving the machine unattended

personal injury or damage to the machine.

Secure the table so that it will not move when tilting back the machine head. If the table move feet or cause other injuries.

is used, the weight of the machine head may cause your hand to slip, and your hand may get caught.

7-1. Sewing

1. Press the power ON switch (1).

The power indicator (2) will illuminate.

2. Carry out the programming which is necessary for sewing. (Refer to “Using the operation panel”.)

3. Depress the treadle to start sewing.

7-2. Using the thread wiper

1. Press the thread wiper key (1) so that it illuminates.

2. The thread wiper (2) will operate after the thread is

trimmed.

S-7300A

7. SEWING

0901D

Screens where sewing is possible

If the treadle is depressed while any of the following screens are displayed, the sewing machine will operate. Be careful not to depress the treadle by mistake.

7-3. Backtacking

When hand switch B (1) is pressed during sewing, the feed direction will be reversed. When it is released, the feed direction will return to normal.

* Hand switch B (1) can be set to carry out various different

operations. (Refer to "6-10. Hand switches".)

S-7300A

7. SEWING

0902D

7-4. Sewing condensed stitches

Sewing direction

Condensed stitches

・ If you press hand switch A (1) while sewing is in progress,

you can sew stitches (forward direction) with small stitch lengths.

The stitch pitch can be changed to between the main

・

stitch pitch and the main reverse stitch pitch depending on how far it is pushed in.

* Hand switch A (1) can be set to carry out various different

operations. (Refer to "6-10. Hand switches".)

S-7300A

8. NEW FUNCTIONS

(2)

(1)

25 - 30mm(For spun thread)

(3)

Becomes shorter

* Reference values for upper thread trailing

0905D

8. NEW FUNCTIONS

8-1. Best PFM mode (short trailing length/bird's nest reduction mode)

This mode reduces the occurrence of bird's nests at the sewing start, and shortens the length of thread trailing out from the material at the sewing end.

1. Press the thread wiper key (1), slow start key (2) and best

PFM mode key (3) so that the icons shown in the illustration illuminate.

2. Adjust the tension for the pre-tension (4) so that the upper

thread trailing length is 25 to 30 mm (spun thread) or 28 to 33 mm (polyester thread).

length

28 - 33mm(For polyester thread)

Becomes longer

(Refer to "5-5-8. Best PFM mode".)

S-7300A

8. NEW FUNCTIONS

(1)

Material thickness

8-2. Using X-over seam assist mode

The X-over seam sensor reduces the occurrence of tangled threads and broken needles during X-over seam sewing.

1. Set the thickness of the X-over seam area.

1-1. Keep pressing the X-over seam assist mode key (1),

and then select "X-over detected height" → "Teaching" from the auto X-over seam setting screen.

1-2. Set the presser foot onto the X-over seam area and

then press the OK key.

1-3. Press the return key.

* Numeric value input when teaching recognition cannot be

performed correctly because of the type of material

2. Set the X-over seam correction value.

* Only adjust if the stitch pitch is not suitable at +0.

2-1. Keep pressing the X-over seam assist mode key (1),

and then select "X-over seam sewing PARA" from the auto X-over seam setting screen.

2-2. Select “Feed amount correction on X-over seam”, and

then set the correction amount. (* The figure is a percentage, so for example, if you set it to “+1”, the sewing pitch will increase by 1% of the main sewing pitch.)

2-3. Select “Feed amount correction at crossing of X-over

seam”, and then set the correction amount. (* The figure is a percentage, so for example, if you set it to “+1”, the sewing pitch will increase by 1% of the main

sewing pitch.) 2-4. Press the return key. 2-5. Press the X-over seam assist mode key (1) so that the

icon illuminates.

NOTE:

If the sewing pitch is incorrect and does not match the X-over seam detection timing, select “X-over seam sewing PARA” and then change the “X-over seam detecting correction” setting.

Set to positive value → Detection timing is advanced Set to negative value → Detection timing is retarded

If a loud noise is generated, the presser foot may be bouncing. In such cases, increase the presser foot pressure, or adjust the X-over seam detection sensitivity to a negative value.

-over seam area

S-7300A

8. NEW FUNCTIONS

Fewer needle breakages

Feed direction

8-3. Using the feed dog locus

Select the feed dog locus according to the sewing application. (4 types)

1. Press the special locus key.

No. Icon

Standard

Diagram of feed

locus

Specifications

(Sewing speed/sewing pitch)

5000sti/min / 4.0 4000sti/min / 5.0

4000sti/min / 3.0 3500sti/min / 4.0 2000sti/min / 5.0

2000sti/min / 4.0

Result

Improved thread tightening

Fewer needle breakages Reduced thread tightening

Improved feeding

than No. 2

Responsiveness to heavy-weight materials is improved compared to previous -3 specifications. [-[][]3 specifications only]

1. Use a genuine Brother rotary hook (SB6568001).

2. Replace gauge parts as necessary.

Recommended needle plate (SB5244001) Recommended feed dog (SB5226001)

3. If necessary, replace the presser bar, presser spring, needle bar and main tension spring to those for -5 specifications.

4. Press the special locus key, and then select No. 2.

NOTE:

The sewing speed will be subjected to the following limits (sewing speed/sewing pitch).

・4000sti/min / 3.0 ・3500sti/min / 4.0 ・2000sti/min / 5.0

S-7300A

8. NEW FUNCTIONS

If the sewing pitch changes according to the material sewing To match the sewing end, such as for corner sewing, set the

If dividing sewing between condense backtack sewing and

reverse backtack sewing in places where a single sewing

and press hand switch B at the reverse backtack sewing places.

If you would like to use a hand switch to operate the presser foot

(1)

(4)

(2)

(3)

8-4. Example of using hand switch settings

Functions can be easily assigned to the hand switches.

1. Press the menu key (1).

2. Press the “Hand switch setting” key (2).

3. Press the “Hand switch A function setting” key or the “Hand switch B function setting” key, and then assign the required function.

4. Press the return key (3) or the home key (4) to return to the home screen.

5. If necessary, press the correction sewing key.

Sewing example

No. Hand switch A Hand switch B

Correction sewing

Use

1 5: Second pitch 1: Reverse OFF

1: Correction sewing u

3 4: Second pitch 1: Reverse OFF

sing second pitch

Presser foot lifter

10:

(switching)

1: Single c

orrection sewing

1: Reverse OFF

direction Example: If set to main sewing pitch for horizontal direction and second pitch for vertical direction, use hand switch A to change the pitch in order to prevent unevenness in the stitch pitches.

correction 2nd pitch to 50%. Example: If sewing stops half a stitch short before the sewing end, press hand switch A; if it stops a single stitch short, press hand switch B.

・

machine is being used

・If you would like to make the sewing pitch narrower to increase

sewing strength in some sections

Example: Set the second pitch to condense sewing pitch (around

0.7), and then press hand switch A at the condense sewing places,

lifter (The optional solenoid presser foot lifter set is required.)

Press switch A

Press switch B

* Refer to “6-10. Hand switches” for other settings.

S-7300A

9. THREAD TENSION

CAUTION

Upper thread

Lower thread

0572M

0573M

0574M

2177M

0903D

Becomes weaker

Becomes stronger

Becomes weaker

Becomes

9. THREAD TENSION

9-1. Adjusting the thread tension

Turn off the power switch before removing or inserting the bobbin case. The machine may operate if the treadle is depressed by mistake, which could result in injury.

Good even stitches

Upper thread tension too weak Lower thread tension too strong

Upper thread tension too strong Lower thread tension too weak

Increase the upper thread tension. Decrease the lower thread tension.

Decrease the upper thread tension. Increase the lower thread tension.

Adjust by turning the adjustment screw (1) until the bobbin case drops gently by its own weight while the thread end coming out of the bobbin case is held.

stronger

After the lower thread tension has been adjusted, adjust the upper thread tension so that a good, even stitch is obtained.

1. Lower the presser foot.

2. Adjust by turning the tension nut (2).

S-7300A

9. THREAD TENSION

Upper thread

Skipped stitches occur

Uneven stitch length

0894M

0895M

0896M

0897M

0904D

25 - 30mm

Becomes shorter

Becomes longer

0905D

Becomes Becomes

stronger

9-2. Adjusting the presser foot pressure

Good even stitches

Increase the pressure

Stitches are puckered

Decrease the pressure.

The presser foot pressure should be as weak as possible, but strong enough so that the material does not slip.

1. Loosen the adjusting nut (1).

weaker

2. Turn the presser adjusting screw (2) to adjust the presser foot pressure.

3. Tighten the adjusting nut (1).

9-3. Adjusting the trailing length after thread trimming

・ At the time of thread trimming, the thread tension is

loosened and tension is applied by the pretension (1) only.

・ The standard upper thread trailing length is 25 to 30 mm. ・ If the tension of the pretension (1) is increased, the

lengths of the threads trailing from the needle tips will be reduced; if the tension is reduced, the lengths will be increased.

Adjust by turning the pretension (1).

S-7300A

9. THREAD TENSION

CAUTION

More thread

Standard

Screw stop

0906D

9-4. Adjusting the thread take-up amount (-[][]3 specifications)

Turn off the power switch before carrying out these operations. The machine may operate if the treadle is depressed by mistake, which could result in injury.

NOTE: Do not use this function with models that are not -[][]3 specifications.

When sewing heavy materials, the thread tension can be adjusted more easily if the thread take-up amount is set to a larger amount.

1. Remove the face plate.

2. Use a hexagonal wrench to loosen the set screws (1) and (2) by approximately two turns.

3. Adjust the thread take-up amount.

Turn the thread take-up support shaft (3) clockwise so that the groove (4) is facing straight upward.

Turn the thread take-up support shaft (3) counterclockwise so that the groove (4) is facing straight downward.

4. With the thread take-up support shaft (3) pushed in as far

as it will go, first tighten the set screw (1) until it touches the screw stop on the thread take-up support shaft (3).

5. After this, tighten the set screw (2).

6. Install the face plate.

S-7300A

10. CLEANING

CAUTION

Be sure to wear protective goggles and gloves when handling the grease so that it does not get into your eyes or

If only one hand is used, the weight of the machine head may cause your hand to slip, and your hand may get

4234M

2126M

4235M

2184M

10. CLEANING

Turn off the power switch before carrying out these operations. The machine may operate if the treadle is depressed by mistake, which could result in injury.

onto your skin. Otherwise inflammation can result. Furthermore, do not drink the oil or eat the grease under any circumstances. Diarrhea or vomiting may result. Keep the oil out of the reach of children.

Secure the table so that it will not move when tilting back the machine head. If the table moves, it may crush your feet or cause other injuries.

Use both hands to hold the machine head when tilting it back or returning it to its original position.

caught.

10-1. Daily cleaning procedures

The following cleaning operations should be carried out each day in order to maintain the performance of this machine and to ensure a long service life. Furthermore, if the sewing machine has not been used for a long period of time, carry out the following cleaning procedures before using it again.

1. Cleaning

1. Raise the presser foot.

2. Remove the two screws (1), and then remove the needle plate (2).

3. Use a soft wire brush to clean any dust from the feed dog (3).

4. Install the needle plate (2) with the two screws (1).

5. Tilt back the machine head.

6. Remove the bobbin case (4).

7. Wipe off any dust from the rotary hook (5) with a soft cloth, and check that there is no damage to the rotary hook (5).

8. Remove the bobbin from the bobbin case (4) and clean the bobbin case (4) with a cloth.

9. Insert the bobbin into the bobbin case (4), and then place the bobbin case (4) back into the machine.

S-7300A

10. CLEANING

0907D

Upper reference line

Lower reference

0908D

2. Lubrication

Oil tank oil quantity

Check the oil gauge window (1), and add more oil if the oil gauge (2) is below the lower reference line. (Refer to "3-3. Lubrication".)

3. Checking

1. Replace the needle if it is bent or if the tip is broken.

2. Check that the upper threads have been threaded correctly. (Refer to "4-5. Threading the upper thread".)

3. Carry out a test sewing.

S-7300A

11. ADJUSTING THE ROTARY HOOK LUBRICATION AMOUNT

CAUTION

Be careful not to touch your fingers or the lubrication amount check sheet against moving parts such as the rotary

the feed mechanism when checking the amount of oil supplied to the rotary hook. If care is not taken, injury

0911D

Less oil

More oil

2303M

2304M

0935M

Approx. 25mm

Approx. 70mm

Spattered oil Too much

Correct lubrication amount

Too little

5 - 10mm

Bed

11. ADJUSTING THE ROTARY HOOK LUBRICATION AMOUNT

hook or may result.

Use the following procedure to check the amount of oil being supplied to the rotary hook when replacing the rotary hook or when changing the sewing speed.

1. Remove the thread from all points from the thread take-up lever to the needle.

2. Use the lifting lever to lift the presser foot.

3. Run the machine at the normal sewing speed for approximately 10 minutes without sewing any material (following the same start/stop pattern as when actually sewing).

4. Place the lubrication amount check sheet (1) to the left of the rotary hook (2) and hold it there. Then run the sewing machine at the normal sewing speed for 10 seconds. (Any type of paper can be used as the lubrication amount check sheet (1).)

5. Check the amount of oil which has spattered onto the sheet.

If adjustment is necessary, carry out the following operations in "Adjusting the lubrication amount".

NOTE:

If the lubrication amount does not match the correct amount shown in the illustration at left (if the amount of spattered oil is too much or none at all), turn the adjusting screw (3) clockwise to fully tighten it, turn it back counterclockwise by 3 1/2 turns, and then carry out the following adjustment.

1. Tilt back the machine head.

2. Turn the adjusting screw (3) to adjust the lubrication amount.

・ If the rotary hook adjusting screw (3) is turned

clockwise, the lubrication amount becomes greater.

・ If the rotary hook adjusting screw (3) is turned

counterclockwise, the lubrication amount becomes smaller.

3. Check the lubrication amount again according to the procedure given in "Checking the lubrication amount" above.

* Turn the rotary hook adjusting screw (3) and check the

lubrication amount repeatedly until the lubrication amount is correct.

4. Check the lubrication amount again after the sewing machine has been used for approximately two hours.

S-7300A

12. STANDARD ADJUSTMENTS

CAUTION

Maintenance and inspection of the sewing machine

carry out any maintenance and inspection of the

If any safety devices have been removed, be

install them to their original

If the table moves, it may crush your feet or cause

If only one hand is used, the weight of the machine head may cause your hand to slip, and your hand

Turn off the power switch and disconnect the power

operate if the treadle is depressed

When carrying out inspection, adjustment and

When replacing consumable parts such as the

out some adjustment, make sure that you switch the

0912D

<-[][]3> 6 - 7mm

12. STANDARD ADJUSTMENTS

should only be carried out by a qualified technician.

Ask your Brother dealer or a qualified electrician to

electrical system.

absolutely sure to repositions and check that they operate correctly before using the machine.

Secure the table so that it will not move when tilting back the machine head.

other injuries.

12-1. Thread tension spring

<-[][]5> 4 - 5mm

Use both hands to hold the machine head when tilting it back or returning it to its original position.

may get caught.

cord plug at the following times. The machine may by mistake, which could result in injury.

･

The standard position of the thread take-up spring (1) is 6 to 7 mm (for -3 specifications) or 4 to 5 mm (for -5 specifications) above the surface of the arm thread guide (3) when the presser foot (2) is lowered.

1. Lower the presser foot (2).

2. Loosen the set screw (4).

3. Turn the thread tension bracket (5) to adjust the spring

4. Securely tighten the set screw (4).

maintenance

･

rotary hook and knives

If the power switch needs to be left on when carrying

sewing machine to maintenance mode. Pay careful attention to safety.

position.

* If the lifting lever or other method has been used to raise

the presser foot when adjusting the thread take-up spring, the movement amount of the thread take-up spring will be limited by the thread take-up spring stopper.

S-7300A

12. STANDARD ADJUSTMENTS

-[][]3 specifications

0.25 - 0.35N

-[][]5 specifications

0.30 - 0.5N

0913D

Scale

<-[ ][ ]3>

<-[ ][ ]5>

0914D

Becomes less

Becomes greater

The standard tension of the thread take-up spring (1) varies in accordance with the machine specifications as shown in the table.

1. Press the upper thread slightly above the thread tension bracket (5) with a finger to stop the thread spooling out.

2. Pull the upper thread downward so that the thread take-up spring (1) is extended to the same height as the base of the arm thread guide (3), and then measure the tension of the thread take-up spring (1).

3. Insert the tip of a screwdriver into the groove in the thread tension stud (6) and turn it to adjust the tension of the thread tension spring (1).

NOTE: If using a tension gauge (7) (part code: 183922-101)

to measure the tension, take the upper thread reading from the scale [at the red line side].

* Do not adjust the tension of the thread take-up spring if

the presser foot has been raised by the lifting lever, or if the thread trimmer solenoid is ON.

0.25 - 0.35N

12-2. Arm thread guide R

0.3 - 0.5N

The standard position of arm thread guide R (1) is the position where the screw (2) is in the center of the adjustable range for arm thread guide R (1).

* To adjust the position, loosen the screw (2) and then

move arm thread guide R (1).

・ When sewing heavy-weight material, move arm thread

guide R (1) to the left. (The thread take-up amount will become greater.)

・ When sewing light-weight material, move arm thread

guide R (1) to the right. (The thread take-up amount will become less.)

S-7300A

12. STANDARD ADJUSTMENTS

(1)

(2)

(3)

0915D

12-3. Presser foot height

The standard height of the presser foot (1) is 6 mm when the presser foot (1) is raised by means of the lifting lever (2).

1. Loosen the nut (3), and then turn the adjustment screw (4)

so that there is no pressure applied to the presser foot.

2. Raise the presser foot (1) by using the lifting lever (2).

3. Remove the rubber cap (5) from the face plate.

4. Loosen the bolt (6) and then move the presser bar (7) up

or down until the presser foot (1) is at the standard height of 6 mm.

5. Tighten the bolt (6).

6. Install the rubber cap (5).

7. Adjust the presser foot pressure using the presser

adjusting screw (4), and then tighten the nut (3).

12-4. X-over seam sensor correction

Be sure to carry out this procedure when replacing the presser foot.

1. Turn on the power.

2. Press the menu key (1).

3. Select the "X-over seam sensor correction" key (2).

4. Turn the machine pulley to set the upper shaft position to

5. Lower the presser foot.

6. Press the OK key (3).

between 110 and 290 degrees.

S-7300A

12. STANDARD ADJUSTMENTS

0929D

0931D

0930D

0.8mm

<-[][]5>

1.2mm

Needle plate

<-[][]3>

Becomes higher

0916D

(1)

Becomes lower

Becomes higher

Becomes lower

Standard

Becomes higher

Becomes lower

Standard

Becomes higher

Becomes lower

Standard

12-5. Adjusting the feed dog height

1. Turn on the power.

2. Start backtack sewing, best PFM mode, slow start, special locus and X-over seam assist will turn off.

3. Set the feed pitch to 3 mm (for -[][]3 specifications) or to 5 mm (for -[][]5 specifications). (Refer to "5-4-3. Main sewing settings ".)

4. Press the menu key (1).

5. Check the clearance A when the feed dog (2) is at the furthest forward position.

-[][]3 specifications: 0.5 mm

-[][]5 specifications: 3 mm

* The standard height of the feed dog (2) when it is raised

as far as possible above the surface of the needle plate is

0.8 mm (for -[][]3 specifications) or 1.2 mm (for -[][]5 specifications).

6. Turn the machine pulley to move the feed dog (2) to its highest position above the needle plate.

7. Tilt back the machine head.

8. Loosen the set screw (3).

9. Turn the feed lifting rock bracket stud (4) within a range of 90° from the reference line (5) to adjust the vertical height of the feed bar (6). (Fig. A)

10. Tighten the set screw (3).

* If you are worried about the angle of the feed dog (2), turn

the shaft (7) while carrying out the above adjustment. (Fig. (B)) (Refer to "12-6. Adjusting the feed dog angle" on the nextpage for details of this operation.)

S-7300A

12. STANDARD ADJUSTMENTS

0917D

0933D

0932D

Lowers the front

Raises the front

Standard

Front is lowered

Front is raised

Parallel

Standard

Front is lowered

Front is raised

Standard

Back is raised

Back is lowered

Needle

(1)

(6)

12-6. Adjusting the feed dog angle

plate

1. Turn on the power.

2. Start backtack sewing, best PFM mode, slow start, special locus and X-over seam assist will turn off.

3. Set the feed pitch to 3 mm (for -[][]3 specifications) or to 5 mm (for -[][]5 specifications). (Refer to "5-4-3. Main sewing settings ".)

4. Press the menu key (1).

* The standard angle for the feed dog (2) when it is lowered

until its top is flush with the top of the needle plate is for the O mark (or the V groove) in the feed bar shaft (3) to be aligned with the feed rocker bracket arm (4) and for the feed dog (2) and to be parallel to the needle plate.

5. Turn the machine pulley to move the feed dog (2) to its highest position above the needle plate.

6. Tilt back the machine head.

7. Loosen the set screw (5).

8. Turn the feed base shaft (3) in the direction of the arrow within a range of 90º with respect to the standard position. (Figure <C>)

・ In order to prevent puckering, lower the front of the

feed dog (2).

・ In order to prevent the material from slipping, raise the

front of the feed dog (2).

9. Securely tighten the set screw (5).

10. Press the home key (6).

* If you would like to tilt the feed dog (2) further, turn the

feed lifting rock bracket stud (7) while carrying out the above adjustment. (Figure <D>) (Refer to "12-5. Adjusting the feed dog height" on the previous page for details of this operation.)

* The height of the feed dog (2) will change after the angle

has been adjusted, so it will be necessary to re-adjust the height of the feed dog (2).

S-7300A

12. STANDARD ADJUSTMENTS

2286M

0918D

12-7. Adjusting the needle bar height

Reference line (a) on the needle bar (1) should be aligned with the lower edge of the needle bar bush (2) as shown in the illustration when the needle bar (1) is at its lowest position.

1. Turn the machine pulley to set the needle bar (1) to its lowest position.

2. Remove the rubber cap (3) from the face plate.

3. Loosen the screw (4) and move the thread wiper (1) up or down to adjust its position.

4. Securely tighten the screw (4).

5. Install the rubber cap (3).

S-7300A

12. STANDARD ADJUSTMENTS

0919D

0920D

<-[][]3>

<-[][]5>

(Standard)

Needle timing is advanced

Needle timing is retarded

1 - 4mm

0mm

(1)

(6)

12-8. Adjusting the needle and feed mechanism timing

1. Turn on the power.

2. Start backtack sewing, best PFM mode, slow start, special locus and X-over seam assist will turn off.

3. Set the feed pitch to 3 mm (for -[][]3 specifications) or to 4 mm (for -[][]5 specifications). (Refer to "5-4-3. Main sewing settings ".)

4. Press the menu key (1).

* The standard position for the point of the needle is as

described below when the feed dog (2) is lowered from its highest position until it is aligned with the top of the needle plate (3).

<-[][]3>

<-[][]5>

5. Tilt back the machine head.

6. Loosen the two set screws (5) of the feed lifting eccentric cam (4), and then turn the feed lifting eccentric cam (4) slightly to adjust the timing.

・ To advance the needle timing, turn in the direction of

<A>, and to retard the needle timing, turn in the direction of <B>.

・ To prevent material slippage from occurring, retard the

needle timing. (Fig. (B))

・ To improve thread tightening, advance the needle

timing. (Fig. (A))

NOTE: If the feed lifting eccentric cam (4) is turned too

This is the position where the top of the feed dog (2) and the top of the needle plate (3) are aligned, and the point of the needle is aligned with the bottom edge of the needle plate (3).

The top of the feed dog (2) and the top of the needle plate (3) are aligned, and there is a clearance of 1 to 4 mm between the point of the needle and the top of the needle plate (3).

far in the direction of <A>, it may cause the needle to break.

7. After adjusting, securely tighten the set screw (5).

8. Press the home key (6).

S-7300A

12. STANDARD ADJUSTMENTS

2293M

2291M

0921D

2290M

0.5 - 0.7mm

1.8mm

<-[][]3> 0.4 - 0.7mm <

2.2mm

<-[][]5>

<-[][]3>

0948D

<-[][]3> 0 - 0.1mm

12-9. Needle and rotary hook timing

<-[][]5> 0 - 0.15mm

-[][]5> 0.6 - 1.1mm

The rotary hook tip (3) should be aligned with the center of the needle (4) when the needle bar (1) moves up 1.8 mm (for

-[][]3 specifications) or 2.2 mm (for –[][]5 specifications) from

its lowest position to the position where reference line (b) is aligned with the needle bar bush (2) as shown in the illustration. (The distance from the upper edge of the needle hole to the rotary hook tip will be 0.5 to 0.7 mm at this time.)

1. Turn the machine pulley to raise the needle bar (1) from its lowest position until reference line (b) is aligned with the lower edge of the needle bar bush (2) as shown in the illustration.

2. Loosen the three set screws (5), and then align the rotary hook tip (3) with the center of the needle (4). There should be a gap of 0 to 0.1 mm (for -[][]3 specifications) or 0 to 0.15 mm (-[][]5 specifications) between the rotary hook tip (3) and the needle (4) at this time.

3. Securely tighten the three set screws (5).

<Checking the clearance between the rotary hook and

bobbin case holder position bracket>

Check that the clearance between the rotary hook (6) and the bobbin case holder position bracket (7) is enough to allow the thread being used to pass through smoothly. The clearance should be 0.4 to 0.7 mm (for -[][]3 specifications) and 0.6 to 1.1 mm (for -[][]5 specifications).

S-7300A

12. STANDARD ADJUSTMENTS

2307M

Floating amount

0922D

Raise

Lower

12-10. Adjusting the presser foot floating amount (minute lifting amount)

(option)

When sewing stretch materials and materials with long pile, you can make minute adjustments to the floating amount for the presser foot (1) in accordance with the material.

1. Turn the sewing machine pulley by hand to move the feed

dog (2) below the needle plate (3).

2. Use the lifting lever to lower the presser foot (1).

3. Remove the screw (4), and then replace the adjustment

screw set (5) (option SB6564).

4. Turn the adjusting screw (6) to adjust the floating amount. ・ To raise the presser foot (1)…Turn the adjusting screw

(6) clockwise.

・ To lower the presser foot (1) ... Turn the adjusting

screw (6) counterclockwise.

5. Tighten the nut (7).

* After making the adjustment, sew a piece of material to

check the floating amount.

S-7300A

12. STANDARD ADJUSTMENTS

0951D

0952D

Back

Front

Parallel

0950D

12-11. Thread trimming

1. Turn off the power switch.

2. Remove the presser foot, needle plate and feed dog.

3. Tilt back the machine head.

4. Loosen the screw (2) of the thread trimmer lever (1) and the screw (4) of the upper knife lever (3). (This will allow the upper and lower knife holders and the needle bar mechanism to operate independently.)

5. Install the lower knife (6) to the lower knife holder (7) with the two screws (5).

6. Install the upper knife (10) with the two screws (8) and (9).

* Install the upper knife (10) so that it is almost parallel to

the ridge line on the mounting surface of the upper knife holder (11).

* If the upper knife (10) is tilted forward, the knife pressure

will increase, and if it is tilted backward, the knife pressure will decrease.

* After adjusting, operate the upper and lower knife holders

by hand and check that the thread can be trimmed.

* If using thick thread, or if the thread is not being trimmed,

adjust the tilt of the upper knife (10) forward.

* Tilt the upper knife (10) forward slightly (about 0.3 mm) so

that the ridge line on the mounting surface of the upper knife holder (11) is slightly visible. (The head of the screw (9) is pan-shaped, and so the upper knife (10) can pivot on this screw when it is tilted.)

S-7300A

12. STANDARD ADJUSTMENTS

0953D

0954D

0955D

7. Adjust the positions of the upper and lower knife holders so that the upper knife (10) and the lower knife (6) mesh and the tips of both knives are aligned at the center of the needle.

8. Tighten the screw (4) of the upper knife lever (3) to secure the upper knife (10) in place.

* Tighten the screw (4) gently but securely at this time so

that the upper knife lever (3) does not shift its position. As a guide, the screw (4) should be positioned in the center of the slot in the upper knife lever (3).

9. Turn the machine pulley while the thread trimmer solenoid is still turned on so that the thread trimmer cam (12) moves the thread trimmer cam roller (13) to its maximum displacement position.

* Make sure that the thread trimmer solenoid does not turn

off and does not return during this step.

S-7300A

12. STANDARD ADJUSTMENTS

0956D

0957D

2mm

10. Set the maximum meshing amount for the upper and

lower knives to 2 mm.

* Turn the thread trimmer lever (1) to align the tip of the

upper knife (10) with the center of the index mark (14) on the lower knife (6).

* Make sure that the tip of the upper knife (10) does not go

past the index mark (14).

11. Tighten the screw (2) of the thread trimmer lever (1).

* Make sure that there is no play in the thrust direction in

the forked shaft (15) of the thread trimmer lever (1) (see illustration on page 8).

S-7300A

12. STANDARD ADJUSTMENTS

Lowest position of needle bar

Raised 6 mm

Reference line (a)

Direction of cam rotation

0958D

0959D

Reference line (

1. Turn the machine pulley to raise the needle bar 6 mm

from its lowest position (reference line (a) position) so that reference line (b) is aligned with the bottom edge of the needle bar bush.

2. At the above position, push the plunger (1) of the thread

trimming solenoid with your finger in the direction of the arrow. Adjust the position of the thread trimmer cam (2) at this time so that the roller shaft (4) of the thread trimming cam lever assembly (3) touches the hollow (c) of the thread trimmer cam (2) and so that the clearance between the edge of the thread trimmer is 0.6 to 0.8 mm. (Fig. A)

3. Check that the clearance between the edge of the thread

trimmer cam (2) and the roller shaft (4) is 0.5 mm when the roller shaft (4) returns to the right. (Fig. (B))

* Tighten the two set screws (5) to approximately 4 N.m.

S-7300A

13. LIST OF ERROR CODES

0927D

Connector P1

Connector P2

Connector P3

Connector P4

Connector P5

Power supply connector

Feed motor connector

Sewing machine motor connector

Connector P13

Connector P6

0926D

13. LIST OF ERROR CODES

LIST OF ERROR CODES

If an error code appears on the touch panel display

・ Items with a "*" in the "Page" column should only be checked by a qualified technician. ・ For items with "**" appearing in the "Page" column, ask the place of purchase for advice.

Main P.C. board

S-7300A

13. LIST OF ERROR CODES

Code

Cause

Remedy

E050

Machine head is detected as being tilted back when

Turn off the power, and then return the machine

Turn off the power and check the connection of

connector P2.

E051

Machine head is detected as being tilted back during sewing.

Turn off the power and check the connection of connector P2.

E055

Machine head is detected as being tilted back when

Turn off the power, and then return the machine

Turn off the power and check the connection of

connector P2.

E064

Touch key was being pressed when power was

Turn the power off and then back on again. * Do not press the touch keys when turning on the

power.

E065

A disabled hardware key was being pressed when

Turn the power off and then back on again.

Do not press a disabled hardware key while turning on the power.

E066

Hand switch A was being pressed when power was

Turn the power off and then back on again. * Do not press hand switch A when turning on the

power.

E067

Hand switch B was being pressed when power was

Turn the power off and then back on again. * Do not press hand switch B when turning on the

power.

E068

Connection of hand switch A was not detected when power was turned on.

Turn off the power and check the connection of connector P3.

E069

Connection of hand switch B was not detected when power was turned on.

Turn off the power and check the connection of connector P3.

E090

Connection of treadle was not detected when power was turned on.

Turn off the power and check the connection of connector P6.

E095

Treadle or standing operation pedal was being

Return treadle unit or standing up operation pedal to

* Do not press the treadle or the standing operation

pedal when turning on the power.

Code

Cause

Remedy

E100

Time for grease up.

Turn off the power, apply grease, and then clear the grease up counter according to the method specified.

E111

The needle up stop position exceeded the specified

Turn off the power and check if the sewing machine

E112

The needle up or needle down stop position did not

motor stopped.

Turn off the power and check if the sewing machine

E113

The needle down stop position exceeded the specified value when the sewing machine motor stopped.

Turn off the power and check if the sewing machine

E130

Sewing machine motor did not operate at sewing

Turn off the power and check if the sewing machine

sewing machine motor connector and connector P5.

E131

Sewing machine motor encoder connection was not detected when power was turned on.

Turn off the power and check the connection of connector P5.

E132

Abnormal sewing speed of sewing machine motor was detected during sewing.

Turn off the power and check the connection of connector P5.

E140

Sewing machine motor ran in opposite direction to the direction specified during sewing.

Turn off the power and check the connection of connector P5.

E150

Abnormal overheating detected in sewing machine motor.

Turn off the power and check the sewing conditions.

E151

Motor overheating sensor connection was not

Turn off the power and check the connection of

E161

Sewing machine motor overload was detected during sewing.

Turn off the power and check the sewing conditions.

Switch-related errors

start sewing.

power was turned on.

turned on.

the power was turned on.

turned on.

・

head to its original position.

・

head to its original position.

・

pressed when power was turned on.

Sewing machine motor-related errors

value when the sewing machine motor stopped.

reach the specified value when the sewing machine

start or during sewing.

original portion.

motor or thread trimming mechanism is stiff or not.

・

motor is stiff or not.

・Turn off the power and check the connections of the

detected.

connector P5.

S-7300A

13. LIST OF ERROR CODES

Code

Cause

Remedy

E190

Sewing machine motor was running continuously for too long during sewing.

Turn the power off and then back on again.

E191

Thread trimming solenoid operation was not completed within the specified period.

Turn off power and check if the thread trimming mechanism is stiff.

Code

Cause

Remedy

E210

Feed motor origin is not detected when power is

Turn off the power and check that the feed

Turn off the power and check the feed motor

connector and connector P4.

E211

Abnormal feed motor operation detected during

Turn off the power and check that the feed

Turn off the power and check the feed motor

connector and connector P4.

E251

Abnormal feed motor overheating detected or feed

Turn off the power and check the sewing conditions.

off the power and check the connection of

connector P4.

Code

Cause

Remedy

E400

Panel connection was not detected when power was turned on.

Turn off the power and check the connection of connector P2.

E410

Communication error with panel occurred when power was turned on.

Turn off the power and check the connection of connector P2.

E422

Error when reading from USB media.

Press the Reset key. Check the data in the USB media.

E424

Insufficient free space in USB media.

Press the Reset key.

media.

E425

Error when writing to USB media.

Press the Reset key. Use the specified USB media.

E440

Data could not be written to the backup memory (main internal P.C. board).

Turn the power off and then back on again.

E441

Data could not be read from the backup memory (main internal P.C. board).

Turn the power off and then back on again.

E442

Back up memory (main internal P.C. board) data was abnormal, so settings were initialized.

Turn the power off and then back on again.

E450

Model settings could not be read from machine head memory (internal panel).

Turn the power off and then back on again.

E451

Data backup cannot be written to machine head memory (internal panel).

Turn the power off and then back on again.

Feed mechanism-related errors

turned on.

sewing.

motor overheating sensor was not detected.

Communication and memory-related errors

・

mechanism is not abnormal.

・

mechanism is not abnormal.

・

・Turn

・・・・Increase the amount of free space in the USB

・・

S-7300A

13. LIST OF ERROR CODES

Code

Cause

Remedy

E700

Abnormal rise in power supply voltage was detected when power was turned on.

Turn off the power and check the power supply voltage.

E701

Abnormal rise in sewing machine motor power

Turn off the power and check the power supply

Turn off the power and check the connection of

connector P13.

E705

Abnormal drop in power supply voltage was

Turn off the power and check the power supply

E709

Power supply signal could not be detected when power was turned on.

Turn the power off and then back on again.

E710

Abnormal sewing machine motor current was detected.

Turn off the power and check the connection of connector P5.

E711

Abnormal electrical current for feed motor is detected.

Turn off the power and check the connection of connector P4.

E791

Abnormal solenoid mechanism current detected when solenoid was activated.

Turn off the power and check the connection of connector P1.

Code

Cause

Remedy

E880

Version update request could not be received when power was turned on.

Turn off the power and check the connection of connector P2.

E881

Communication error was detected during main version update.

Turn off the power and check the connection of connector P2.

E882

No USB medial connected when power was turned on.

Turn off the power and check the connection of the USB media.

E883

Version update file could not be detected in USB media when power was turned on.

Turn off the power and then check that the version update file is contained in the USB media.

E884

Problem with version update file detected during version updating.

Turn off the power, and then repeat the version update procedure.

E885

Version update file could not be read from USB media during version updating.

Turn off the power and check the connection of the USB media.

E886

Problem with version update file detected during version updating.

Turn off the power, and then repeat the version update procedure.

E887

Version update file could not be written during version updating.

Turn off the power, and then repeat the version update procedure.

E888

Error sending or receiving version update file.

Turn off the power, and then repeat the version update procedure.

E889

Incorrect data written to flash memory.

Turn off the power, and then repeat the version update procedure.

E890

Error occurred during version update.

Turn off the power, and then repeat the version update procedure.

P.C. board-related errors

supply voltage was detected.

detected.

Version updating errors

・

voltage.

・

voltage.

If an error code that is not listed above appears or if carrying out the specified remedy does not solve the problem, contact the place of purchase.

S-7300A

Brother S-7300A-333P, S-7300A-433P, S-7300A-403P, S-7300A-305P, S-7300A-303P Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

SAFETY INSTRUCTIONS

[1] Safety indications and their meanings

[2] Notes on safety

[3] Warning labels

CONTENTS

1. MACHINE SPECIFICATIONS

2. NAMES OF MAJOR PARTS

3. INSTALLATION

3-1. Table processing diagram

3-2. Installation

3-3. Lubrication

3-4. Connecting the cords

3-4-1. Connecting the cords

3-4-2. Other cords

3-5. Test operation (Operating the treadle)

3-6. Adjusting the treadle

4. PREPARATION BEFORE SEWING

4-1. Installing the needle

4-2. Removing the bobbin case

4-3. Winding the lower thread

4-4. Installing the bobbin case

4-5. Threading the upper thread

4-6. Using the knee lifter

5. USING THE OPERATION PANEL (BASIC OPERATIONS)

5-1. Names and functions

5-2. Home screen

5-2-1. Description of detailed home screen

5-2-2. Description of simple home screen

5-2-3. Types of icons

5-3. Menu screen

5-4. Program setting method

5-4-1. Program structure

5-4-2. Start backtack settings

5-4-3. Main sewing settings

5-4-4. End backtack settings

5-5. Using program individual functions and program common functions

5-5-1. Needle up/down

5-5-2. Thread trimming lock

5-5-3. Thread wiper

5-5-4. Correction sewing

5-5-5. AUTO

5-5-6. Slow start

5-5-7. Special locus

5-5-8. Best PFM mode

5-5-9. X-over seam assist mode

5-6. Using the production counter

5-7. Using the lower thread counter

5-8. Home screen mode setting

5-9. Illumination LED brightness setting

6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)

6-1. Adding and deleting steps

6-2. Editing steps

6-3. Sewing start step setting

6-4. Program copy

6-5. Shortcut key assignment method

6-6. Design stitch registration method

6-7. Working pace setting method

6-8. Memory switch setting method (Standard)

6-9. List of memory switch settings

6-10. Hand switches

6-10-1. Hand switch function setting

6-10-2. 2nd correction pitch setting

6-10-3. 2nd pitch setting

6-11. Reading and writing data using USB media

6-12. Resetting all settings to their defaults

7. SEWING

7-1. Sewing

7-2. Using the thread wiper

7-3. Backtacking

7-4. Sewing condensed stitches

8. NEW FUNCTIONS

8-1. Best PFM mode (short trailing length/bird's nest reduction mode)

8-2. Using X-over seam assist mode

8-3. Using the feed dog locus

8-4. Example of using hand switch settings

9. THREAD TENSION