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S-7200B |
Basic Operation Manual |
SINGLE NEEDLE DIRECT DRIVE STRAIGHT LOCK STITCHER WITH THREAD TRIMMER
Please read this manual before using the machine.
Please keep this manual within easy reach for quick reference.
This basic operation manual describes basic operations including sewing machine operations.
For cleaning, standard adjustments and more details, please refer to the instruction manual contained in the Document CD.
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-7200B
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
The instructions which follow this term indicate situations where failure to follow the instructions may result in death or serious injury.
The instructions which follow this term indicate situations where failure to follow the instructions could cause injury when using the machine or physical damage to equipment and surroundings.
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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-7200B |
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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 face plate of the control box. Touching areas where high voltages are present can result in severe injury.
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. |
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. |
The relative humidity should be within the range of |
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Any fluctuations in the power supply voltage |
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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. |
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. |
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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the requirements for the sewing machine's power |
and disconnect the power cord from the wall outlet. |
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consumption. |
Lightning may cause problems with correct |
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Insufficient power supply capacity may cause |
operation. |
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problems with correct operation. |
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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 more than 44 kg. The installation should be carried out by two or more people.
Do not connent 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.
If using a work table which has casters, the casters should be secured in such a way so that they cannot move.
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.
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.
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S-7200B |
CAUTION
Sewing
This sewing machine should only be used by 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. 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
If using a work table which has casters, the casters should be secured in such a way so that they cannot move.
Attach all safety devices before using the sewing machine. If the machine is used without these devices attached, injury may result.
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.
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.
If an error occurs in machine, or if abnormal noises or smells are noticed, immediately turn off the power switch. Then contact your nearest Brother dealer or a qualified technician.
If the machine develops a problem, contact your nearest Brother dealer or a qualified technician.
Cleaning
Turn off the power switch before carrying out cleaning. The machine may operate if the treadle is depressed by mistake, which could result in injury.
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.
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.
Use only the proper replacement parts as specified by Brother.
Maintenance and inspection
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 carry out any maintenance and inspection of the electrical system.
Turn off the power switch and disconnect the power cord from the wall outlet at the following times, otherwise the machine may operate if the treadle is depressed by mistake, which could result in injury.
When carrying out inspection, adjustment and maintenance
When replacing consumable parts such as the rotary hook
If the power switch needs to be left on when carrying out some adjustment, be extremely careful to observe all safety precautions.
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.
Use only the proper replacement parts as specified by Brother.
If any safety devices have been removed, be absolutely sure to re-install them to their original positions and check that they operate correctly before using the machine.
Any problems in machine operation which result from unauthorized modifications to the machine will not be covered by the warranty.
S-7200B |
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[3] Warning labels
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.
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Be sure to connect the ground. If the ground connection is not |
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secure, you run a high risk of receiving a serious electric shock, |
Safety devices: |
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and problems with correct operation may also occur. |
(A) Finger guard |
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(B) Thread take-up cover |
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Direction of operation |
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Oil pan
Control box
3629M
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S-7200B |
CONTENTS
1. CONVENIENT FUNCTION FOR |
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4. PREPARATION BEFORE SEWING..... |
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SMOOTH SEWING ............................... |
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4-1. Installing the needle.......................................... |
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2. NAMES OF MAJOR PARTS |
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4-2. Removing the bobbin case ............................... |
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4-3. Winding the lower thread |
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3. INSTALLATION .................................... |
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4-4. Installing the bobbin case ................................. |
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3-1. Table processing diagram |
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4-5. Threading the upper thread .............................. |
15 |
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4-6. Adjusting the stitch length |
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3-2. Installation |
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3-3. Lubrication (-[]0[], []3[] specifications) .............. |
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5. USING THE OPERATION PANEL |
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3-4. Connecting the cords ....................................... |
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(BASIC OPERATIONS) ........................ |
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3-4-1. Opening the control box cover............. |
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5-1. Names and functions |
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3-4-2. Connecting the cords |
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5-2. Sewing start and end backtack stitches |
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3-5. Test operation (Operating the treadle) |
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6. SEWING |
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6-1. Sewing.............................................................. |
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6-2. Backtacking ...................................................... |
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Document CD ........................................... |
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S-7200B
1. CONVENIENT FUNCTION FOR SMOOTH SEWING
1. CONVENIENT FUNCTION FOR SMOOTH SEWING
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Lower thread counter |
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Notification given when greasing is required |
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INSTRUCTION MANUAL CD |
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INSTRUCTION MANUAL CD |
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5-7. Using the lower thread counter |
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11-2. Applying grease |
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The graphic display lights and a buzzer |
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sounds before the bobbin thread runs |
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3163M |
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out, so that the operator can concentrate |
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on the job with confidence. |
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3719M
Actuator
INSTRUCTION MANUAL CD
13-1. Adjusting the actuator position
The installation position for the actuator can be adjusted to <A> or <B>. Adjust so that it is in a position where it is easy to operate.
The sewing speed at the sewing start can be selected in accordance with the treadle depression amount. You can set the speed according to the preferences of the operator.
(Contact the place of purchase.)
Page 17
The sewing speed can be easily set by the sewing speed control keys.
INSTRUCTION MANUAL CD 9-3. Sewing condensed stitches
This feature is ideal for use when sewing thin materials that can easily pucker when reverse stitches are sewn. Condensed stitches have a smaller sewing pitch and they help prevent fraying.
Sewing direction
Condensed stitches
3165M
Maximum presser foot lift amount 16 mm
The knee lifter and the needle up stop (reverse rotation) function together provide 16 mm of space underneath the presser foot. This makes it much easier to insert and remove heavy material without it getting caught on the needle.
(Contact the place of purchase.)
Floating presser foot for easy handling
INSTRUCTION MANUAL CD
13-12. Adjusting the presser foot floating amount
A micro-adjustable type floating presser foot is equipped as standard. This device is ideal for controlling presser foot floating in materials that stretch easily and materials with long pile. It prevents seam slippage and also prevents damage to the material. In addition, three-dimensional articles with irregular curves can also be handled with ease.
3720M |
3721M |
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S-7200B |
2. NAMES OF MAJOR PARTS
2. NAMES OF MAJOR PARTS
3630M
(1) |
Bobbin winder |
(2) |
Thread wiper (-4[][] specifications) |
(3) |
Lifting lever |
(4) |
Quick reverse (Actuator) |
(5) |
Presser foot |
(6) |
Control box |
(7) |
Control box panel |
(8) |
Knee lifter assembly |
(9) |
Power switch |
(10) |
Oil gauge window (-[]0[], []3[] specifications) |
(11) |
Reverse lever |
(12) |
Stitch length dial |
(13) |
Machine pulley |
(14) |
Operation panel (Models with operation panel) |
(15)Cotton stand
Safety devices |
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(16) Thread take-up cover |
(17) Finger guard |
S-7200B |
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