S-7300A |
INSTRUCTION MANUAL |
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Please read this manual before using the machine.
Please keep this manual within easy reach for quick reference.
SINGLE NEEDLE DIRECT DRIVE LOCK STITCHER WITH ELECTRONIC FEEDING SYSTEM AND THREAD TRIMMER
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
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 |
The instructions which follow this term indicate situations where failure to follow the |
instructions will result in death or serious injury. |
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WARNING instructions could result in death or serious injury. |
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The instructions which follow this term indicate situations where failure to follow the |
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CAUTION |
instructions may result in minor or moderate injury. |
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The instructions which follow this term indicate situations where failure to follow the |
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Symbols
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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.
(For example, the symbol at left means “you must make the ground connection”.)
S-7300A |
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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 injury.
WARNING
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.
CAUTION
Environmental requirements
Use the sewing machine in an area which is free |
The ambient temperature should be within the |
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from sources of strong electrical noise such as |
range of 5°C to 35°C during use. |
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electrical line noise or static electric noise. |
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Temperatures which are lower or higher than this |
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Sources of strong electrical noise may cause |
may cause problems with correct operation. |
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problems with correct operation. |
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The relative humidity should be within the range of |
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Any fluctuations in the power supply voltage |
45% to 85% during use, and no dew formation |
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should be within ±10% of the rated voltage for the |
should occur in any devices. |
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machine. |
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Excessively dry or humid environments and dew |
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Voltage fluctuations which are greater than this |
formation may cause problems with correct |
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may cause problems with correct operation. |
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operation. |
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The power supply capacity should be greater than |
In the event of an electrical storm, turn off the power |
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and disconnect the power cord from the wall outlet. |
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the requirements for the sewing machine's power |
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Lightning may cause problems with correct |
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consumption. |
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operation. |
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Insufficient power supply capacity may cause |
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problems with correct operation. |
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Do not connect anything to the USB port other than |
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the USB memory. If this is not observed, problems |
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with operation may result. |
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Installation |
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Machine installation should only be carried out by |
If using a work table which has casters, the casters |
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a qualified technician. |
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should be secured in such a way so that they |
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Contact your Brother dealer or a qualified |
cannot move. |
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Secure the table so that it will not move when tilting |
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electrician for any electrical work that may need to |
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be done. |
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back the machine head. If the table moves, it may |
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The sewing machine weighs approximately 34.5 |
crush your feet or cause other injuries. |
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Use both hands to hold the machine head when |
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kg (76lb). The installation should be carried out by |
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two or more people. |
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tilting it back or returning it to its original position. If |
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Do not connect the power cord until installation is |
only one hand is used, the weight of the machine |
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head may cause your hand to slip, and your hand |
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complete. The machine may operate if the treadle |
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may get caught. |
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is depressed by mistake, which could result in |
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injury. |
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Be sure to wear protective goggles and gloves |
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Turn off |
the |
power |
switch before inserting |
or |
when handling the lubricating oil and grease, so that |
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they do not get into your eyes or onto your skin, |
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removing |
the |
plug, |
otherwise damage to |
the |
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otherwise inflammation can result. |
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control box could result. |
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Furthermore, do not drink the oil or eat the grease |
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Be sure to connect the ground. If the ground |
under any circumstances, as they can cause |
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connection is not secure, you run a high risk of |
vomiting and diarrhea. |
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receiving a serious electric shock, and problems |
Keep the oil out of the reach of children. |
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.
ii |
S-7300A |
CAUTION
Sewing
This sewing machine should only be used by |
Do not touch any of the moving parts or press any |
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operators who have received the necessary training |
objects against the machine while sewing, as this |
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in safe use beforehand. |
may result in personal injury or damage to the |
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The sewing machine should not be used for any |
machine. |
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Secure the table so that it will not move when tilting |
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applications other than sewing. |
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Be sure to wear protective goggles when using the |
back the machine head. If the table moves, it may |
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crush your feet or cause other injuries. |
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machine. |
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Use both hands to hold the machine head when |
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If goggles are not worn, there is the danger that if a |
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needle breaks, parts of the broken needle may enter |
tilting it back or returning it to its original position. If |
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your eyes and injury may result. |
only one hand is used, the weight of the machine |
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Turn off the power switch at the following times. |
head may cause your hand to slip, and your hand |
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may get caught. |
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The machine may operate if the treadle is |
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If an error occurs in machine operation, or if |
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depressed by mistake, which could result in injury. |
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When threading the needle |
abnormal noises or smells are noticed, immediately |
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turn off the power switch. Then contact your nearest |
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When replacing the bobbin and needle |
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Brother dealer or a qualified technician. |
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When not using the machine and when leaving |
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the machine unattended |
If the machine develops a problem, contact your |
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If using a work table which has casters, the casters |
nearest Brother dealer or a qualified technician. |
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should be secured in such a way so that they |
Do not hold the machine head by the panel when |
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cannot move. |
tilting it back or returning it to its original position. If |
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Attach all safety devices before using the sewing |
this is not observed, it may result in serious injury or |
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damage to the sewing machine. |
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machine. If the machine is used without these |
devices attached, injury may result.
Cleaning
Turn off the power switch before carrying out |
Be sure to wear protective goggles and gloves when |
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cleaning. The machine may operate if the treadle is |
handling the lubricating oil and grease, so that they |
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depressed by mistake, which could result in injury. |
do not get into your eyes or onto your skin, |
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Secure the table so that it will not move when tilting |
otherwise inflammation can result. |
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Furthermore, do not drink the oil or eat the grease |
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back the machine head. If the table moves, it may |
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under any circumstances, as they can cause |
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crush your feet or cause other injuries. |
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vomiting and diarrhea. |
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Use both hands to hold the machine head when |
Keep the oil out of the reach of children. |
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tilting it back or returning it to its original position. If |
Do not hold the machine head by the panel when |
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only one hand is used, the weight of the machine |
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tilting it back or returning it to its original position. If |
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head may cause your hand to slip, and your hand |
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this is not observed, it may result in serious injury or |
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may get caught. |
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damage to the sewing machine. |
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S-7300A |
iii |
CAUTION
Maintenance and inspection
Maintenance and inspection of the sewing machine |
Use both hands to hold the machine head when |
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should only be carried out by a qualified technician. |
tilting it back or returning it to its original position. |
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Ask your Brother dealer or a qualified electrician to |
If only one hand is used, the weight of the machine |
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head may cause your hand to slip, and your hand |
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carry out any maintenance and inspection of the |
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may get caught. |
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electrical system. |
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When |
replacing |
parts and |
installing |
optional |
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Turn off the power switch and disconnect the power |
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accessories, be sure to use only genuine Brother |
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cord from the wall outlet at the following times, |
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parts. |
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otherwise the machine may operate if the treadle is |
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Brother |
will |
not |
be |
held |
responsible |
for |
any |
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depressed by mistake, which could result in injury. |
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accidents or problems resulting from the use of |
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When carrying out inspection, adjustment and |
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non-genuine parts. |
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maintenance |
If any safety devices have been removed, be |
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When replacing consumable parts such as the |
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rotary hook and knife |
absolutely sure to re-install them to their original |
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Always be sure to turn off the power switch and then |
positions and |
check |
that |
they |
operate |
correctly |
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before using the machine. |
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wait one minute before opening the pulley cover. If |
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To prevent accidents and problems, do not modify |
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you touch the surface of the motor, it may cause |
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burns. |
the machine yourself. |
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If the power switch needs to be left on when carrying |
Brother |
will |
not |
be |
held |
responsible |
for |
any |
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accidents or problems resulting from modifications |
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out some adjustment, make sure that you switch the |
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made to the machine. |
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sewing machine to maintenance mode. Pay careful |
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attention to safety. |
Do not hold the machine head by the panel when |
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tilting it back or returning it to its original position. If |
Secure the table so that it will not move when tilting |
this is not observed, it may result in serious injury or |
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back the machine head. If the table moves, it may |
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damage to the sewing machine. |
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crush your feet or cause other injuries. |
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iv |
S-7300A |
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.
1
2 |
Touching areas where high voltages are present can |
result in severe injury. Turn off the power before |
opening the cover.
3
*Safety devices: (A) Finger guard
(B)Thread take-up cover
(C)pulley cover
9
4 |
Be careful not to get your hands |
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caught |
when |
returning |
the |
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machine head to its original |
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position after it has been tilted. |
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Be careful to avoid injury from |
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the moving thread take-up and |
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pulley. |
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6 |
Do not |
hold. |
Problems |
with |
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operation or injury may occur. |
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7 |
Be sure to connect the ground. If |
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the ground connection is not |
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secure, you run a high risk of |
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receiving |
a |
serious electric |
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shock, and problems with correct |
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operation may also occur. |
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8 |
Direction of operation |
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10 |
Do not place your hands inside |
the bottom cover. |
Problems with operation or injury may occur.
S-7300A |
v |
Transformer box
(100 V/400 V system only)
Control box |
Oil tank |
0874D
vi |
S-7300A |
S-7300A |
vii |
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....................................... |
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4. PREPARATION BEFORE SEWING..... |
16 |
4-1. Installing the needle........................................ |
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4-2. Removing the bobbin case............................. |
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4-3. Winding the lower thread................................ |
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4-4. Installing the bobbin case ............................... |
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4-5. Threading the upper thread............................ |
18 |
4-6. Using the knee lifter........................................ |
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5. USING THE OPERATION PANEL |
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(BASIC OPERATIONS)........................ |
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5-1. Names and functions...................................... |
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5-2. Home screen .................................................. |
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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 ................................ |
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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 |
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and program common functions ..................... |
31 |
5-5-1. Needle up/down ................................... |
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5-5-2. Thread trimming lock ........................... |
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5-5-3. Thread wiper ........................................ |
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5-5-4. Correction sewing ................................ |
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5-5-5. AUTO ................................................... |
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5-5-6. Slow start ............................................. |
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5-5-7. Special locus........................................ |
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5-5-8. Best PFM mode ................................... |
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5-5-9. X-over seam assist mode .................... |
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5-6. Using the production counter ......................... |
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5-7. Using the lower thread counter ...................... |
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5-8. Home screen mode setting ............................ |
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5-9. Illumination LED brightness setting ................ |
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6. USING THE OPERATION PANEL |
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(ADVANCED OPERATIONS) .............. |
41 |
6-1. Adding and deleting steps............................... |
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6-2. Editing steps.................................................... |
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6-3. Sewing start step setting................................. |
43 |
6-4. Program copy.................................................. |
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6-5. Shortcut key assignment method ................... |
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6-6. Design stitch registration method ................... |
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6-7. Working pace setting method ......................... |
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6-8. Memory switch setting method (Standard) ..... |
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6-9. List of memory switch settings ........................ |
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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 |
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USB media.................................................... |
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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/ |
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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 |
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trimming .......................................................... |
68 |
9-4. Adjusting the thread take-up amount |
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(-[][]3 specifications)........................................ |
69 |
10.CLEANING ........................................... |
70 |
10-1. Daily cleaning procedures............................. |
70 |
11.ADJUSTING THE ROTARY HOOK |
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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 |
S-7300A
12-5. Adjusting the feed dog height....................... |
76 |
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12-6. |
Adjusting the feed dog angle........................ |
77 |
12-7. |
Adjusting the needle bar height.................... |
78 |
12-8. |
Adjusting the needle and feed |
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mechanism timing ........................................ |
79 |
12-9. |
Needle and rotary hook timing ..................... |
80 |
12-10. Adjusting the presser foot floating amount |
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(minute lifting amount) (option)................... |
81 |
12-11. Thread trimming ......................................... |
82 |
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13.LIST OF ERROR CODES..................... |
86 |
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14.TROUBLESHOOTING.......................... |
90 |
S-7300A
1. MACHINE SPECIFICATIONS
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3 |
4 |
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Thread wiper |
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O |
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0 |
3 |
Lubrication type |
Minimum lubrication |
Semi dry |
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3 |
5 |
Use |
For mediumweight materials |
For heavy-weight materials |
0875D |
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-333P,-433P, |
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-305P |
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-303P, -403P |
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-405P |
Max. sewing speed |
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Pitch 4 or less /5000 sti/min |
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Pitch 4 or less /4500 sti/min |
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* Standard feed locus |
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More than pitch 4/4000 sti/min |
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More than pitch 4/4000 sti/min |
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Backtack sewing speed |
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Automatic 150 (*1) - 3000 sti/min, |
Manual 150 (*1) - 4000 sti/min* |
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* Standard feed locus |
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(*1) Inching setting speed |
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Max. stitch length |
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5mm |
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7mm(* 5 mm at time of shipment) |
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Presser foot |
Lifting lever |
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6mm |
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height |
Knee lifter |
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16mm |
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Feed dog height |
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0.8mm |
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1.2mm |
Needle (DB×1, DP×5) |
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#11 - #18 |
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#19 - #22 |
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Motor |
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AC servo motor |
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Control circuit |
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Microprocessor |
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Rotary hook |
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New lubrication-type rotary hook |
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Lubricating oil |
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-[]0[]P |
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-[]3[]P |
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Rotary hook |
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High-speed spindle |
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High-speed spindle |
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Needle bar |
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Special Brother grease |
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1 |
S-7300A |
2. NAMES OF MAJOR PARTS
0876D
(1) |
Bobbin winder |
(2) |
Thread wiper device |
(3) |
Lifting lever |
(4) |
Hand switch A |
(5) |
Hand switch B |
(6) Work clamp |
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(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: |
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(17) |
Pulley cover |
(18) |
Thread take-up cover |
(19) Finger guard |
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S-7300A |
2 |
3. INSTALLATION
CAUTION
Machine installation should only be carried out by a |
Secure the table so that it will not move when tilting |
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qualified technician. |
back the machine head. If the table moves, it may |
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Contact your Brother dealer or a qualified electrician |
crush your feet or cause other injuries. |
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Use both hands to hold the machine head when |
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for any electrical work that may need to be done. |
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The sewing machine weighs approximately 34.5 kg |
tilting it back or returning it to its original position. If |
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only one hand is used, the weight of the machine |
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(76lb). The installation should be carried out by two |
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head may cause your hand to slip, and your hand |
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or more people. |
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may get caught. |
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Do not connect the power cord until installation is |
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complete. The machine may operate if the treadle is |
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depressed by mistake, which could result in injury. |
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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.
0475D
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.
0877D
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.
0878D
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.
0879D
3 |
S-7300A |
3. INSTALLATION
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
Control box mounting hole
0880D
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
0881D
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4 |
3. INSTALLATION
3. Rubber cushions
(1) Rubber cushions [2 pcs]
0882D
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.
0883D
0938D 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).
5 |
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3. INSTALLATION
6. Knee lifter plate
<Knee lifter adjustment>
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).
0884D
10 mm
Within 16 mm
0885D
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).
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
mmof the needle plate when the knee liter plate is fully pressed.
8.After adjustment is completed, securely tighten the nut
(6).
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6 |
3. INSTALLATION
CAUTION
Do not connect the power cord until lubrication has been completed, otherwise the machine may operate if the treadle is depressed by mistake, which could result in injury.
Be sure to wear protective goggles and gloves 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 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).
<Lubrication oil replenishment interval>
Be sure to add more oil if the oil gauge (6) is below the lower reference line.
Upper reference line
Lower reference line
0886D
7 |
S-7300A |
3. INSTALLATION
CAUTION
Contact your Brother dealer or a qualified electrician |
When securing the cords, do not bend the cords |
|
for any electrical work that may need to be done. |
excessively or fasten them too hard with staples, |
|
Do not connect the power cord until all cords have |
otherwise there is the danger that fire or electric |
|
shocks could occur. |
||
been connected. |
||
Be sure to connect the ground. If the ground |
||
The machine may operate if the treadle is depressed |
||
by mistake, which could result in injury. |
connection is not secure, you run a high risk of |
|
|
receiving a serious electric shock, and problems with |
|
|
correct operation may also occur. |
1. Harness cover
1. Raise the harness cover (1).
0887D
Lower the tab (7).
Push in securely until the tabs (7) engage.
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 connector
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”.
0888D
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8 |
3. INSTALLATION
3. Lower the harness cover (1), and then place the harness inside the harness cover.
0928D
0889D
Align the flat edges |
Lower the tab (4). |
Push in securely until the tabs (4) engage.
Ground symbol
Green and yellow wire (ground wire)
0890D
9 |
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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”.
3. INSTALLATION
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 injury.
For Europe specifications, Americas 220V specifications and 100 V/400 V system specifications, connect the cords according to the respective specifications.
<Seen from underneath table>
Leg
Control box
Green and yellow wire (ground wire)
< 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.
0943D
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10 |
3. INSTALLATION
<For 100V/400V system specifications>
(1) Power switch
(2) Screws [2 pcs]
4145M
11 |
S-7300A |
3. INSTALLATION
(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.
Green and yellow wire (ground wire)
0945D
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12 |
3. INSTALLATION
<For Americas 220V specifications>
(1) Power switch
(2) Screws [2 pcs]
Operator
4145M
(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.
Green and yellow wire (ground wire)
0892D
13 |
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3. INSTALLATION
CAUTION
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.
0893D
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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14 |
3. INSTALLATION
3648M
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.
2117M
0939D
<Forward depression sensitivity adjustment>
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.
<Backward depression sensitivity adjustment>
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.
0940D
15 |
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4. PREPARATION BEFORE SEWING
CAUTION
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 |
Front |
left, and then securely tighten the screw (1). |
Long groove
0894D |
0795M |
CAUTION
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.
2119M |
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. |
2120M
For thick materials
0798M |
2121M |
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16 |
4. PREPARATION BEFORE SEWING
CAUTION
Do not touch any of the moving parts or press any objects against the machine while winding the lower thread, as this may result in personal injury or damage to the machine.
0895D
More thread
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.
Less thread
0896D |
2124M |
CAUTION
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.
0802M |
2125M |
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 |
|
|
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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. |
2126M
17 |
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4. PREPARATION BEFORE SEWING
CAUTION
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.
25 - 30mm (Reference value: #60 spun thread)
0897D
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18 |
4. PREPARATION BEFORE SEWING
The presser foot (2) can be raised by pressing the knee lifter plate (1).
0899D
19 |
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