Basic Operation Manual S-7200A SINGLE NEEDLE DIRECT DRIVE STRAIGHT LOCK STITCHER WITH THREAD TRIMMER Please read this manual before using the machine. The 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. CONTENTS 1. SAFETY INSTRUCTIONS ......... 01 2. CONVENIENT FUNCTION FOR SMOOTH SEWING ............ 05 3. NAMES OF MAJOR PARTS... 06 4.
1. SAFETY INSTRUCTIONS Thank you very much for buying a BROTHER sewing machine. Before using your new machine, please read the safety instructions below 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.
1. SAFETY INSTRUCTIONS 1-2. 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 from sources of strong electrical noise such as high-frequency welders.
1. SAFETY INSTRUCTIONS CAUTION Sewing This sewing machine should only be used by operators who have received the necessary training in safe use beforehand. Attach all safety devices before using the sewing machine. If the machine is used without these devices attached, injury may result. The sewing machine should not be used for any applications other than sewing.
1. SAFETY INSTRUCTIONS 1-3. 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. 1 2 3 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.
2. CONVENIENT FUNCTION FOR SMOOTH SEWING 2. CONVENIENT FUNCTION FOR SMOOTH SEWING Notification given when greasing is required INSTRUCTION MANUAL CD 11-2. Applying grease 3163M Lower thread counter Selectable starting speed 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.) INSTRUCTION MANUAL CD 5-6.
3. NAMES OF MAJOR PARTS 3.
4. INSTALLATION 4. INSTALLATION CAUTION 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 connect the power cord until installation is complete. The machine may operate if the treadle is depressed by mistake, which could result in injury.
4. INSTALLATION 4-1. 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. Cotton stand hole Cord hole Head rest hole Control box mounting hole 2090M 4-2. Installation 1. Control box (1) (2) (3) (4) (5) Control box Bolts [3 pcs] Nuts [3 pcs] Spring washers [3 pcs] Washers [3 pcs] 2.
4. INSTALLATION 3. Power switch (1) Power switch (2) Screws [2 pcs] Operator 2092M 4. Oil pan (1) Head cushions (left) [2 pcs] (2) Head cushions (right) [2 pcs] (3) Oil pan 2093M 5. Rubber cushions (1) Rubber cushions [2 pcs] (2) Nails [4 pcs] 6.
4. INSTALLATION 7. Machine head (1) Hinges [2 pcs] (2) Machine head (3) Head rest NOTE: 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. 2095M 8. Operation panel (1) Operation panel (2) Screws [2 pcs] (Use for tightening rear cover) 2096M 9. Sticker (Remove) (1) Sticker 2097M 10.
4. INSTALLATION 11. Knee lifter plate (1) Knee lifter plate (2) Bolt * Loosen the bolt (3) and move the knee lifter plate (1) to a position where it is easy to use. 2099M 1. Turn the machine pulley so that the feed dog is below the top of the needle plate. 2. Lower the presser foot (5) by using the lifting lever (4). 2100M 2101M 3. Loosen the nut (6). 4.
4. INSTALLATION 4-3. Lubrication (-[]0[], []3[] specifications) * If the sewing machine is –[]5[] specifications, it is a complete dry type machine, and so no lubrication is necessary. 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.
4. INSTALLATION 4-4. Connecting the cords 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 Contact your Brother dealer or a qualified electrician for any electrical work that may need to be done. Do not connect the power cord until all cords have been connected.
4. INSTALLATION (1) (2) (3) (4) 7-pin head detector unit connector 10-pin operating panel connector 14-pin encoder connector 14-pin machine connector Refer to the following page for the 4-pin motor connector. Push in securely until the tabs (5) engage. 3131M 3132M (1) Repeat cable tie (2) Wire clip NOTE: Bind the cords in such a way that the connector does not get pulled out.
4. INSTALLATION 2111M 3. Other cords (1) (2) (3) (4) 6-pin power supply connector 4-pin motor connector Wire clip Power cord Insert the power cord plug (5) into a wall outlet. 1. Attach an appropriate plug to the power cord (4). (The green and yellow wire is the ground wire.) 2. Insert the plug into a properly-grounded AC power supply. NOTE: Do not use extension cords, otherwise machine operation problems may result.
4. INSTALLATION 4-5. Test operation (Operating the treadle) 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. Press the ON power switch (1). The power indicator (2) will illuminate. NOTE: When turning the power switch on for the first time The treadle and the operation panel will not operate for approximately four seconds after the power switch is turned on.
5. PREPARATION BEFORE SEWING 5. PREPARATION BEFORE SEWING 5-1. Installing the needle 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. Front 1. Turn the machine pulley to move the needle bar to its highest position. 2. Loosen the screw (1). 3.
5. PREPARATION BEFORE SEWING 5-3. Winding the lower thread 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. 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.
5. PREPARATION BEFORE SEWING 5-5. Threading the upper thread 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. 2127M 5-6. Adjusting the stitch length 1.
6. USING THE OPERATION PANEL (BASIC OPERATIONS) 6. USING THE OPERATION PANEL (BASIC OPERATIONS) 6-1. Names and functions • The operation panel keys cannot be operated while sewing is in progress. Select the keys and set the number of stitches before starting sewing. • In the case of keys with indicators, the indicator illuminates when that function is operating, and the indicator switches off when the key is pressed once more.
6. USING THE OPERATION PANEL (BASIC OPERATIONS) (6) Fixed stitch key When this key is pressed so that the indicator illuminates, the number of stitches (1−1999) in the E stitch number display is sewn, and then the sewing machine stops automatically. 2143M (7) Name label key When this key is pressed so that the indicator illuminates, fixed stitch sewing of the number of stitches (1−1999) in the E and F stitch number displays is carried out repeatedly.
6. USING THE OPERATION PANEL (BASIC OPERATIONS) 6-2. Sewing start and end backtack stitches 0841M 1 Setting start backtack stitches Example: 2157M 2 Setting end backtack stitches Example: 2158M 3 Start backtacking is carried out. After it has finished, normal sewing continues for as long as the treadle remains depressed. NOTE: If the treadle is returned to the neutral position, the sewing machine will continue operating until the set number of start backtack stitches has been sewn.
7. USING THE CONTROL BOX PANEL (BASIC OPERATIONS) 7. USING THE CONTROL BOX PANEL (BASIC OPERATIONS) NOTE The control box panel will not operate when the machine head operation panel is connected. 7-1. Names and functions Power indicator 3133M The power indicator illuminates when the power switch is turned on. (1) Speed control • This lets you adjust the sewing speed when the treadle is fully depressed. • The sewing speed becomes faster when the speed control (1) is turned clockwise.
7. USING THE CONTROL BOX PANEL (BASIC OPERATIONS) 7-2. Sewing start and end backtack stitches 0841M 3134M 1 While pressing the start backtack key (1), press the power switch (2) to turn on the power. 3135M 2 Start backtack setting (A) 1. Press the start backtack key (1) so that "A" is displayed in the top row of the stitch number display. 2. Press the end backtack key (3) to set the number of stitches for A in the bottom row of the stitch number display.
7. USING THE CONTROL BOX PANEL (BASIC OPERATIONS) 1 Press the power switch (1) to turn on the power. 3141M 2 1. Press the start backtack key (2) so that the start backtack indicator (3) illuminates. 2. Press the end backtack key (4) so that the end backtack indicator (5) illuminates. 3142M 3 Start backtacking is carried out. After it has finished, normal sewing continues for as long as the treadle remains depressed.
8. SEWING 8. SEWING CAUTION Attach all safety devices before using the sewing machine. If the machine is used without these devices attached, 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.
Document CD For cleaning, standard adjustments and more details, please refer to the instruction manual contained in the Document CD. 3168M Contents of the Document CD The following documents are contained in PDF format. ・ Basic Operation Manual ・ Instruction Manual ・ Parts Book How to use the Document CD Refer to “Using Document CD” which comes with the Document CD or the help function of the Document CD.
