BAS-311H 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 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 lever, and consequently there is always a danger of injury that can be caused by these parts.
CONTENTS 1. NAMES OF MAJOR PARTS ................ 1 2. SPECIFICATIONS ................................ 2 3. INSTALLATION .................................... 3 3-1. Table processing diagram ................................ 4 3-2. Installing the control box ................................... 5 3-3. Installing the oil pan .......................................... 5 3-4. Installing the machine head .............................. 6 3-5. Installing the operation panel ........................... 9 3-6.
8. SEWING................................................ 51 11. LIST OF ERROR CODES ................... 68 8-1. Sewing .............................................................. 51 8-2. Using the STOP switch..................................... 52 12. TROUBLESHOOTING ........................ 75 9. CLEANING ........................................... 53 13. 7-SEGMENT DISPLAY LIST .............. 79 9-1. Cleaning the rotary hook .................................. 53 9-2.
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 The instructions which follow this term indicate situations where failure to follow the instructions will result in death or serious injury.
[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 control box cover. 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.
CAUTION Sewing This sewing machine should only be used by operators who have received the necessary training in safe use beforehand. If using a work table which has casters, the casters should be secured in such a way so that they cannot move. The sewing machine should not be used for any applications other than sewing. Attach all safety devices before using the sewing machine. If the machine is used without these devices attached, injury may result.
[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 .
Rear cover Tension release solenoid cover Inner cover L Outer cover Fixed cover Side cover Thread take-up cover Inner cover R Eye guard Outer cover Fixed cover Finger guard Gas spring support cover 3028B 3029B BAS-311H v
1. NAMES OF MAJOR PARTS 1.
2. SPECIFICATIONS 2. SPECIFICATIONS 3190B Sewing machine Lock stitch pattern tacking sewing machine (with large shuttle hook) Stitch formation Single needle lock stitch Max. sewing speed 2,800 sti/min Max. sewing area (XxY) Feed mechanism 150 x 100 mm Intermittent feed, pulse motor drive 0.05 − 12.7 mm Stitch length No. of stitches Maximum no. of stitches No.
3. INSTALLATION 3. 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 head weighs approximately 88kg. The installation should be carried out by two or more people. Do not connect the power cord until installation is complete. If the foot switch is depressed by mistake, the sewing machine might start operating and injury could result.
3. INSTALLATION 3-1. Table processing diagram • The thickness of the table should be at least 40 mm, and it should be strong enough to bear the weight and vibration of the sewing machine. • Check that the control box is at least 10 mm away from the leg. If the control box and the leg are too close together, it may result in incorrect sewing machine operation.
3. INSTALLATION 3-2. Installing the control box Remove the six screws (1), and then remove the control box cover (2). (3) Control box (4) Bolts [4 pcs.] (5) Plain washers [4 pcs.] (6) Spring washers [4 pcs.] (7) Nuts [8 pcs.] 3033B (8) Power switch (9) Wood screws [2 pcs.] (10) Staples [4 pcs.] Operator 1841B 3-3. Installing the oil pan (1) Oil pan (2) Nails [6 pcs.
3. INSTALLATION 3-4. Installing the machine head (1) Pins [2 pcs.] (2) Set screws [2 pcs.] (3) Hinge rubber assemblies [2 pcs.] Place the machine head gently on top of the oil pan. Pulse motor Approx. 20 mm NOTE: • Be careful not to get the cords clamped between the machine head and the oil pan. • When holding the machine head, do not hold it by the pulse motor. This may cause problems with operation of the pulse motor. Approx. 20 mm 3035B (4) (5) (6) (7) (8) (9) Hinge holders [2 pcs.] Bolts [4 pcs.
3. INSTALLATION (10) Auxiliary plate (11) Bolts with washer [8 pcs.] Loosen the eight bolts with washer (11), and adjust so that the auxiliary plate (10) is 0 to 0.5 mm above the needle plate (10). Gently tilt back the machine head. Needle plate NOTE: • Install the auxiliary plate (10) so that it is horizontal. If the auxiliary plate (10) is lower than the needle plate, the feed plate may get caught on the needle plate.
3. INSTALLATION Be sure to install so that the side with “UP” on it is facing upward. (12) Gas spring holders [2 pcs.] (13) Spacer (14) Bolt (15) Nut (16) Gas spring (17) Shaft collars [2 pcs.] (18) Gas spring shaft D (19) Plain washers [2 pcs.] (20) Retaining rings E [2 pcs.] (21) Bolts [2 pcs.] (22) Plain washers (medium) [2 pcs.] (23) Plain washers (large) [2 pcs.] (24) Spring washers [2 pcs.] (25) Nuts [2 pcs.] (26) Gas spring shaft U (27) Retaining rings E [2 pcs.
3. INSTALLATION Gently return the machine head to its original position. 1. Remove the two screws (30), and then temporarily remove the machine head switch (31). 2. Use the two screws (30) which were removed to install the machine head switch (31) in the position shown in the illustration. 3. Check that the machine head switch as turned on as shown in figure [A]. * If the machine head switch is not turned on, adjust the installation position while referring to “3-17. Checking the machine head switch”.
3. INSTALLATION 3-6. Installing the two-pedal foot switch (1) Two-pedal foot switch (2) Conversion harness Connect the connector for the two-pedal foot switch (1) to the conversion harness (2). Insert the conversion harness (2) into the P15 (PEDAL) connector on the main P.C. board. (Refer to "3-7. Connecting the cords".) * Be sure to make the ground connection. (Refer to “3-8. Connecting the ground wire”.
3. INSTALLATION < Main P. C. board > Lock the cord clamp securely. Press the tab.
3. INSTALLATION < Motor P. C. board > Lock the cord clamps (2) and (4) securely. 3047B Connection location on motor P. C. board （UVW） P11（SYNC） P3 (PANEL) Connectors Upper shaft motor [4-pin] Synchronizer [10-pin] Operation panel [4-pin] Cord clamps/ cable ties (4) (2) (3) (2) (3) 5. Close the cord presser plate (2) in the direction of the white arrow, and secure it by tightening the two screws (1).
3. INSTALLATION 3-8. Connecting the ground wire CAUTION 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. 3045B (1) Ground wire from the machine head (2) Ground wire from operation panel (3) Ground wires from two-pedal foot switch harnesses (2 wires) • Tighten the control box cover with the six screws. Check that the cords are not clamped by the cover at this time.
3. INSTALLATION 3-9. Connecting the power cord CAUTION 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. Connect cords that match the voltage specifications. < EU specifications＞ (1) Filter box (2) Screws [4 pcs] (3) Staples [7 pcs] (4) Power cord 1. Attach an appropriate plug to the power cord (4). (The green and yellow wire is the ground wire.) 2.
3. INSTALLATION <200 V system > (1) Power switch (2) Screws [2 pcs] Operator 3146B 3147B (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. 3.
3. INSTALLATION <100 V / 400 V system > (1) Power switch (2) Screws [2 pcs] Operator 3146B 2348B (3) Transformer box (4) Transformer box plates [2 pcs] (5) Screw [with washer] (6) 3-pin power supply connector (7) Staples [6 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 AC power supply. * The inside of the control box uses single-phase power.
3. INSTALLATION 3-10. Installing the cotton stand (1) Cotton stand NOTE: Fit the washer (2), and then securely tighten the nut (3) so that the cotton stand does not move.
3. INSTALLATION 3-11. Installing the pneumatic unit (pneumatic work clamp specifications) Install underneath the work table. (1) (2) (3) (4) Solenoid valve assembly Washers [2 pcs.] Wood screws [2 pcs.] Rubber hose After installing the pneumatic unit, adjust the air pressure. (Refer to "10-16. Adjusting the air pressure".) NOTE: Make sure that the pneumatic unit does not touch the control box or the work table leg. 1904B Connect each air tube to the position with the corresponding number.
3. INSTALLATION 3-12. Installing the eye guard CAUTION Attach all safety devices before using the sewing machine. If the machine is used without these devices attached, injury may result. (1) (2) (3) (4) (5) Bolt (loosen) Eye guard (tilt forward) Eye guard assembly Plain washers [2 pcs.] Bolts [2 pcs.] After installing the eye guard assembly (3), return the eye guard (2) to its original angle, and then tighten the screw (1) to secure it in place. 3048B 3-13.
3. INSTALLATION 3-14. Lubrication CAUTION Do not connect the power cord until lubrication is complete. If the foot switch is depressed by mistake, the sewing machine might start operating and injury could result. 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. If the oil and grease get into your eyes or onto your skin, inflammation can result.
3. INSTALLATION 3-15. Installing the machine head fixing bolt When transporting the sewing machine, secure the machine head to the table with the machine head fixing bolt. (1) Plain washer [2 pcs.] (2) Machine head fixing bolts [2 pcs.] NOTE: When operating the sewing machine, remove the machine head fixing bolt. 3052B 3-16. Installing the bobbin winder tension (1) Bobbin winder tension (2) Set screw [1 pc.] 3053B 3-17. Checking the machine head switch 1. Turn on the power switch. 2.
4. PREPARATION BEFORE SEWING 4. PREPARATION BEFORE SEWING 4-1. Installing the needle CAUTION Turn off the power switch before installing the needle. If the foot switch is depressed by mistake, the sewing machine might start operating and injury could result. 1. Loosen the set screw (1). 2. 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, and then securely tighten the set screw (1). 3057B 4-2.
4. PREPARATION BEFORE SEWING Threading mode is safe because the sewing machine will not start even when the foot switch is depressed. 1 Turn on the power switch. 3055B 2 Press the THREAD/CLAMP key. All indicators switch off • The work clamp will drop. • The tension discs will open. 3 THREAD/CLAMP indicator illuminates MENU indicator switches off Threading the thread. 4 Ending threading mode 3061B 4427Q Press the THREAD/CLAMP key.
4. PREPARATION BEFORE SEWING 4-3. 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. 3062B 3063B 1. Place the bobbin onto the bobbin winder shaft (1). 2. Thread the thread as shown in the illustration, wind the thread around the bobbin several times, and then press the bobbin presser arm(2). 3. Turn on the power switch. 4.
4. PREPARATION BEFORE SEWING 4-4. Installing the bobbin case CAUTION Turn off the power switch before installing the bobbin case. If the foot switch is depressed by mistake, the sewing machine might start operating and injury could result. 2534Q 30mm 3066B 1. 2. 3. 4. 5. 6. 2535Q Pull the shuttle race cover (1) downward to open it. While holding the bobbin so that the thread winds to the right, insert the bobbin into the bobbin case.
4. PREPARATION BEFORE SEWING 4-5. Thread tension [Thread tension reference] Specifications Medium-weight materials (-03[]) Heavy-weight materials (-05[]) Seatbelt (-07[]) Upper thread #50 or similar #20 or similar #4 or similar Lower thread #50 or similar #20 or similar #4 or similar Upper thread tension (N) 0.8 − 1.2 1.4 − 1.8 1.2 − 2.0 0.2 − 0.3 Lower thread tension (N) 1.0 − 1.5 Pre-tension (N) 0.1 − 0.3 0.1 − 0.6 0.3 − 0.
4. PREPARATION BEFORE SEWING 4-6. Starting up 2979B Before turning on the power switch, check that the needle bar is at the needle up stop position. Turn the pulley (1) in the direction of the arrow until the ridge at the bottom of the thread take-up (2) is aligned with the index mark. Aligned 3068B 1. Turn on the power switch. The POWER indicator (3) will illuminate, and the model name will appear in the tension value display (4) and the specifications will appear in the section No. display (5).
5. USING THE OPERATION PANEL (BASIC OPERATIONS) 5. USING THE OPERATION PANEL (BASIC OPERATIONS) 5-1. Name and function of each operation panel item 3070B (1) Power indicator Illuminates when the power is turned on. (2) CAUTION indicator Illuminates when an error occurs. (3) RESET key Used to reset errors. (4) TEST key Used to switch to test mode, or it can be used in combination with other keys to switch to other setting modes. (5) TEST indicator Illuminates when the TEST key (4) has been pressed.
5. USING THE OPERATION PANEL (BASIC OPERATIONS) (12) SPLIT No. indicator Illuminates when the SELECT key (14) is pressed to show the split setting when split data (for specifying a pause while the program is running) exists. (13) WIPER indicator Illuminates when the SELECT key (14) is pressed to switch to the thread wiper. (14) SELECT key Used to select the desired menu (horizontal and vertical scale, sewing speed, counter, (split No.), thread wiping). (15) PROGRAM No.
5. USING THE OPERATION PANEL (BASIC OPERATIONS) 5-2. Program setting method For details on the sewing data reading method, refer to “7. USING SD CARDS”. 1 Select the item to be changed. Press the SELECT key. 2401B ・ The selected parameter changes in the order shown in the illustration below each time the SELECT key is pressed. X-scale Y-scale Sewing speed Slow start pattern Counter Split No. Thread wiping 2 Change the setting for the parameter. (Refer to “5-2-1.
5. USING THE OPERATION PANEL (BASIC OPERATIONS) 5-2-1. Parameter list Parameter Setting range and initial value 0% - 400% (Limited by available sewing area.) Display Initial value (Initial value is 100%.) X-scale * The setting can be displayed in “mm” units by setting memory switch No. 402 to “ON”. 3073B 0% - 400% (Limited by available sewing area.) Initial value (Initial value is 100%.) * The setting can be displayed in “mm” units by setting memory switch No. 402 to “ON”.
5. USING THE OPERATION PANEL (BASIC OPERATIONS) Parameter Setting range and initial value Lo1-Lo9 (Initial values: Lo4) Display Initial value The starting-up speed at the sewing start can be adjusted. * The smaller the number, the slower the start. * This is used to stop the thread from pulling out at the sewing start, and at times when skipped stitches might easily occur.
5. USING THE OPERATION PANEL (BASIC OPERATIONS) 5-2-2. Using the lower thread counter If you use the lower thread counter to set the number of articles which can be sewn with the amount of lower thread available, you can stop the lower thread running out in the middle of sewing a pattern. 1 Change the mode to lower thread counter setting mode. Previous initial value 2 While pressing the TEST key, press the key.
5. USING THE OPERATION PANEL (BASIC OPERATIONS) 5-2-3. Using the production counter 1 Change the mode to production counter setting mode. While pressing the TEST key, press the key. ・ The 7 digits of the current counter value will be displayed in the PROGRAM No. display and the menu display. 2 SPEED indicator illuminates TEST indicator and COUNTER indicator flash Change the counter value. 3080B 2430B Press the or key (1) to set the counter value.
5. USING THE OPERATION PANEL (BASIC OPERATIONS) 5-2-4. Split number setting method If split data (data that causes sewing to pause) exists within a single program, the numbers that are used to specify the patterns that are separated by split data are called split numbers. Pattern 1 Pattern 1: Split No. 1 Pattern 2: Split No. 2 Pattern 2 Pattern 3: Split No. 3 Pattern 3 4964Q 1. Press the or key (1) to select a program number for a program that contains split data.
5. USING THE OPERATION PANEL (BASIC OPERATIONS) 5-3. Copying programs Sewing programs can be copied to other program numbers. 1 Press the or key to select the program number that you would like to use as the copying destination. For example, to copy program number 200: 3084B 2 Switch to program copy mode. While pressing the TEST key, press the SELECT key. • “CoPy” will appear in the menu display, and the copying destination program number will appear in the tension value display.
5. USING THE OPERATION PANEL (BASIC OPERATIONS) 5-4. Checking the sewing pattern Use test feed mode to operate the feed mechanism in order to check the needle movement. Check that the needle hole does not come out from the frame of the work clamp. 1. Press the TEST key. • The number of stitches remaining until the final stitch will be displayed in the menu display. 1 2501B TEST indicator lights 2. Press the or key (1) to set the program number that you would like to check.
5. USING THE OPERATION PANEL (BASIC OPERATIONS) 5-5. Setting the work clamp lift amount The settings for the work clamp and intermediate work clamp lift amount can be changed using the operation panel. * For pneumatic work clamp specifications, only threading mode and intermittent presser foot height setting mode will be available. 1 2 All indicators switch off THREAD/CLAMP indicator illuminates MENU indicator switches off Motor-driven work clamp specifications only Press the THREAD/CLAMP key.
5. USING THE OPERATION PANEL (BASIC OPERATIONS) 3 Press the key. The sewing machine will switch to intermittent presser foot height setting mode. • " 4" will appear in the PROGRAM No. display, and the work clamp will rise to the setting value that appears in the menu display. (Intermittent presser foot height setting: 0.0 − 10.0) Press the or key to set the intermittent presser foot height. • The intermittent presser foot will rise or drop to the height of the new value that has been set.
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS) 6. USING THE OPERATION PANEL (ADVANCED OPERATIONS) 6-1. Setting memory switches 1 Change the mode to memory switch setting mode. While pressing the TEST key, press the TENSION key. All indicators switch off ・ The memory switch number will appear in the PROGRAM No. display, and the setting value for that memory switch number will appear in the menu display.
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS) 6-2. List of memory switch settings No. 001 002 003 100 200 300 400 402 403 405 41 Setting Setting items range Work clamp lift timing after sewing is completed 0 Work clamp is not raised automatically. 1 Work clamp is raised at the final stitch position. 2 Work clamp is raised after moving to the home position.
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS) No. 406 407 408 409 410 Setting Setting items range Program numbers switched by F keys When the F1 to F4 keys are pressed, operation switches to sewing program 0 numbers 101 to 104. When the F1 to F4 keys are pressed, operation switches to cycle program 1 numbers C01 to C04. * Selection is possible when memory switch No. 400 is set to ON.
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS) 6-3. Using cycle programs Sewing patterns that have been recorded in user programs can be recorded in up to 30 cycle programs (C01 to C30). One cycle program can contain up to a maximum of 50 steps (St1 to St50). When sewing the sewing patterns in a certain order, it can be useful to record them in a cycle program beforehand. * If memory switch No. 400 is set to OFF, cycle program setting and selection cannot be carried out.
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS) 5 Repeat steps 3 and 4 above to record step 2 and subsequent steps in the same way. 6 7 If you would like to continue setting another cycle program, repeat steps 2 to 5 above. Press the or key (5) to display the step number you would like to record in the menu display (6). End cycle program recording mode. Press the TEST key. 2404B This completes the recording of cycle programs.
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS) When a cycle program has been recorded, the cycle program number is displayed after the program number when a program number is selected. 1. Press the or key (1) to select the cycle program number that you would like to use. ・ Program for step 1 The cycle program number is displayed in the PROGRAM No. display, the step number is displayed in the TENSION display, and the parameter for that step is displayed in the menu display (2).
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS) 6-4. Direct selection You can use the function keys to directly select program numbers and cycle program numbers. However, if a program number has nothing recorded, it will not be displayed. 2441B The parameters which can be selected will vary depending on the memory switch settings. 406 = 0 (Initial setting) Program No.102 Program No. 101 Program No.103 2443B 2442B Program No.104 2444B 2445B 406＝1 Program No.C02 Program No.
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS) 6-5. 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 memory setting data. 1 Change to initialization mode. 3107B (While pressing the RESET key, press the power ON switch.
7. USING SD CARDS 7. USING SD CARDS 7-1. Notes on handling SD cards (commercially available) • Use an SD card or a multimedia card with a capacity of 2GB or less. • Do not disassemble or alter SD cards. • Do not bend, drop, scratch or place heavy objects on top of the SD cards. • Do not allow the SD cards to become wet, such as with water, oil, solvents, drinks or any other liquids. • Do not use or store the SD cards in a locations exposed to strong static electricity or electrical interference.
7. USING SD CARDS 7-3. Preparation for reading and writing data Insert the SD card into the SD slot. NOTE: • Make sure the SD card is facing the correct way. • The cover should be closed at all times except when the SD card is inserted and removed, otherwise dust may cause trouble. 1 2650B 2 3 Turn on the power switch. Switching to SD data read/write mode While pressing the TEST key, press the ENTER key. 2652B ・ “ sd” will appear in the PROGRAM No.
7. USING SD CARDS 7-4. Reading additional sewing data Select the “ r 1” SD data read/write mode. (Refer to “7-3. Preparation for reading and writing data”.) 1 ・ The number of the additional sewing data in the SD memory card folder will appear in the tension display. (The initial value displayed is “ALL”.) 3098B 2 Press the or key to select the number for the additional sewing data that you would like to be read (ALL, 100 to 999).
8. SEWING 8. SEWING 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 Turn off the power switch at the following times.
8. SEWING 8-2. Using the STOP switch If you press the STOP switch (1) while sewing or test feeding is in progress, the CAUTION indicator (2) will illuminate and the sewing machine will stop immediately. 3111B 1. Press the RESET key (3). • The thread will be trimmed, and then the CAUTION indicator (2) will switch off and the buzzer will stop sounding. 2. If you do not wish to continue sewing, press the RESET key (3) once more. • The program number will flash.
9. CLEANING 9. CLEANING CAUTION Turn off the power switch before carrying out cleaning. If the foot switch is depressed by mistake, the sewing machine might start operating and injury could result. 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. If the oil and grease get into your eyes or onto your skin, inflammation can result. Furthermore, do not drink or eat the lubricating oil or grease.
9. CLEANING 9-2. Cleaning the control box air inlet ports Use a vacuum cleaner to clean the filter in the air inlet ports (2) of the control box (1) at least once a month. 2309B 9-3. Draining the oil 1. Remove and empty the waste oil tank (1) whenever it is full. 2. After emptying the waste oil tank (1), screw it back into its original position. 3117B 9-4. Cleaning the eye guard Wipe the eye guard clean with a soft cloth. NOTE: Do not use solvents such as kerosene or thinner to clean the eye guard.
10. STANDARD ADJUSTMENTS 10. STANDARD ADJUSTMENTS CAUTION Maintenance and inspection of the sewing machine should only be carried out by a qualified technician. Hold the machine head with both hands when tilting it back or returning it to its original position. In addition, do not apply excessive force when tilting back the machine head. The sewing machine may become unbalanced and fall down, and serious injury or damage to the sewing machine may result.
10. STANDARD ADJUSTMENTS 10-2. Thread take-up spring Medium-weight materials (-03[]) Specifications Thread take-up spring height (mm) Thread take-up spring tension (N) Heavy-weight materials (-05[]) 7 − 10 0.2 − 0.5 Seatbelt (-07[]) 2−4 0.6 − 1.2 1.0 − 1.4 Loosen the set screw (1) and turn the adjuster to adjust. Lower Higher 3121B Turn the tension stud (2) with a screwdriver to adjust the tension.
10. STANDARD ADJUSTMENTS 10-4. Adjusting the needle bar height 3124B 2552Q Turn the pulley in the direction of the arrow to move the needle bar to the lowest position. Then remove the rubber plug (2), loosen the screw (3) and then move the needle bar up or down to adjust so that the second reference line from the bottom of the needle bar (reference line A) is aligned with the lower edge of the needle bar bush (1). * If using a DP X 5 needle, use the highest reference line (reference line a). 10-5.
10. STANDARD ADJUSTMENTS 10-6. Adjusting the needle clearance 0.01 − 0.08mm (Seatbelt: 0.1 – 0.2 mm) 3126B 0138Q Turn the pulley in the direction of the arrow to align the tip of the rotary hook with the center of the needle, and then loosen the set screw (1) and turn the eccentric shaft (2) to adjust so that the clearance between the needle and the rotary hook is 0.01 to 0.08 mm. 10-7.
10. STANDARD ADJUSTMENTS 10-9. Adjusting the position of the movable knife 3059B 5232Q 3128B Reverse position 5233Q 5255Q 1. Open the top cover and tilt back the machine head. 2. Turn the pulley (1) by hand in the direction of the arrow to move the needle bar to its lowest position, and push the thread trimming solenoid (2) as far as it will go. 3.
10. STANDARD ADJUSTMENTS 3059B 3145B 3131B 8. Replace the cover (8). 9. Turn the pulley (1) by hand to move the needle bar to its lowest position. 10. Loosen the nut (12), tighten the set screw (13) until the collar (3) is touching the inside of the groove in the thread trimmer cam (4), and then turn it back in the counterclockwise direction by approximately 1/4 of a turn. 11. Tighten the nut (12), and then check that the collar (3) is not touching the inside of the groove in the thread trimmer cam (4).
10. STANDARD ADJUSTMENTS 10-10. Replacing the movable and fixed knives 3132B 1. Loosen the two bolts (1) and then remove the feed plate (2). 2. Open the shuttle race cover, remove the two screws (3) and the two flat screws (4), and then remove the needle plate (5). 3. Remove the movable knife (6) and the fixed knife (7). 3133B 3134B 4. Install the new fixed knife (7) in the position shown in the illustration. 5.
10. STANDARD ADJUSTMENTS 10-11. Installing the feed plate Index mark 3135B NOTE: Install the feed plate (1) so that the surface with the index mark (U) is facing upward. Place the rear edge of the feed plate (1) against the stepped part of base plate Y (2) (shaded section (A)) and use a 2 mm diameter pin (such as a needle) to align the hole in the feed plate (1) with the hole in base plate Y (2); then tighten the two socket bolts (3).
10. STANDARD ADJUSTMENTS 10-12. Adjusting the thread wiper Approx. 2mm 3136B 5008Q Approx. 3mm 5009Q 1. Loosen the two screws (3) and shift the entire solenoid setting plate (4) up or down to adjust so that the thread wiper (2) is 15 mm in front of the needle center when the plunger (1) of the thread wiper solenoid is driven to the full stroke. 2.
10. STANDARD ADJUSTMENTS 10-14. Changing the intermittent stroke The intermittent stroke can be adjusted to within 2 − 10 mm by adjusting the position of the stepping clamp connecting rod and changing the installation position of stepping clamp link A. 3137B 5011Q 1. Remove the face plate. 2. Remove the two screws (1) and the two shoulder screws (2), and then remove stepping clamp link A (3). 3.
10. STANDARD ADJUSTMENTS 5014Q Index mark 3138B 5015Q 1. Loosen the screw (1), and then open the cover (2). 2. Loosen the nut (3), and then adjust the position of the stepping clamp connecting rod (4). • When the stepping clamp connecting rod (4) is raised, the intermittent stroke will increase. • When the stepping clamp connecting rod (4) is lowered, the intermittent stroke will decrease. Next, adjust the needle bar and presser foot timing. 3.
10. STANDARD ADJUSTMENTS 10-15. Adjusting the work clamp lift amount The operation panel settings can be used to adjust the height to within 15 − 25 mm. (Refer to "5-5. Setting the work clamp lift amount.") The maximum lift amount for the work clamp is 30 mm above the surface of the needle plate. Max. 30mm 5018Q 3143B 1. Turn on the air, and then depress the work clamp switch (1) to raise the work clamp (2). 2.
10. STANDARD ADJUSTMENTS 10-17. If processing the work clamps and the feed plate to a shape that matches the sewing pattern Process the work clamps and feed plate which match the sewing pattern, while referring to the processing diagram below. * Values in ( ) are the recommended sizes when sewing using the maximum area (150x100 mm). Motor-driven work clamp specifications Pneumatic work clamp specifications The left and right work clamps are symmetrical.
11. LIST OF ERROR CODES 11. LIST OF ERROR CODES DANGER Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet before opening the control box cover. Touching areas where high voltages are present can result in severe injury. If a malfunction should occur with the sewing machine, a buzzer will sound and an error code will appear in the display window. Follow the remedy procedure to eliminate the cause of the problem.
11. LIST OF ERROR CODES Motor-related errors Code Cause of error and remedy E100 Turn off the power, add grease, and then carry out the specified reset operations. Upper shaft did not stop at the needle up stop position when the sewing machine stopped. E111 Turn off the power, and then check that connectors P11 and P1 on the motor P.C. board and connector P6 on the main P.C. board are properly inserted. Thread trimming was not completed.
11. LIST OF ERROR CODES Feed mechanism-related errors Code Cause of error and remedy X-feed motor home position cannot be detected. Problem with X-feed motor or poor X home position sensor connection. E200 Turn off the power, and then check that connectors P17, P21 and P8 on the main P.C. board are properly connected. Check that LD1 on the main P.C. board is illuminated while the power is on. (If it is not illuminated, fuse F2 is blown.) X-feed motor stopped due to a problem.
11. LIST OF ERROR CODES Work clamp-related errors Code Cause of error and remedy Work clamp home position cannot be detected. Problem with work clamp motor or poor work clamp home position sensor connection. E300 Turn off the power, and then check that connectors P19, P23 and P8 on the main P.C. board are properly connected. Check that LD1 on the main P.C. board is illuminated while the power is on. (If it is not illuminated, fuse F2 is blown.) Work clamp raised or lowered position cannot be detected.
11. LIST OF ERROR CODES Communication and memory-related errors Code Cause of error and remedy Communication error detected between the main P.C. board and the panel P.C. board when the power was turned on. E400 Turn off the power, and then check that connector P1 on the panel P.C. board, connector P5 on the main P.C. board and connectors P2 and P3 on the motor P.C. board are properly inserted. Communication error detected between the main P.C. board and the motor P.C. board when the power was turned on.
11. LIST OF ERROR CODES Data editing-related errors Code Cause of error and remedy The enlargement ratio setting caused the sewing data to extend outside the sewing area. E500 Set the enlargement ratio again. Press the RESET key to clear the error. The enlargement ratio caused the data pitch to exceed the maximum pitch of 12.7 mm. E502 Press the RESET key to clear the error. Set the enlargement ratio again. Error in sewing data. E510 Press the RESET key to clear the error.
11. LIST OF ERROR CODES P.C. board-related errors Code Cause of error and remedy Abnormal rise in power supply voltage. E700 Turn off the power, and then check the input voltage. Abnormal rise in sewing machine motor drive voltage. E701 Turn off the power, and then check the voltage. Abnormal drop in power supply voltage. E705 Turn off the power, and then check the input voltage. Abnormal current detected in sewing machine motor.
12. TROUBLESHOOTING 12. TROUBLESHOOTING ・ Please check the following points before calling for repairs or service. ・ If the following remedies do not fix the problem, turn off the power switch and consult a qualified technician or the place of purchase. CAUTION Turn off the power switch and disconnect the power cord before carrying out these operations. The machine may operate if the foot switch is depressed by mistake, which could result in injury.
12. TROUBLESHOOTING Problem Cause Remedy Reference Lower thread winds to one side. Height of thread winder tension device is incorrect. Adjust the height of the thread winder tension device. P. 24 Lower thread winding amount is incorrect. Bobbin presser position is incorrect. Adjust the position of the bobbin presser. P. 24 Amount of lower thread being fed out from bobbin is too small. Select a needle that is suitable for the sewing conditions.
12. TROUBLESHOOTING Problem Upper thread is breaking. Lower thread is breaking. Needle breaks. Upper thread is not cut. Lower thread is not cut. Cause Remedy Reference Thread is too thick for the needle. Select a thread which is suitable for the needle. P. 26 Needle is not installed correctly. Install the needle so that it faces correctly. P. 22 Thread is not threaded correctly. Thread the thread correctly. P.
12. TROUBLESHOOTING Problem Cause Upper thread is not tight. Remedy Reference Needle is too thin. Select a needle that is suitable for the sewing conditions. P. 26 Hole diameter in needle hole plate is too small. Replace the needle hole plate with one with a larger hole diameter. Feed plate is too thin. Use a thicker feed plate. *Recommended thickness: 1.5 mm Hole diameter of intermittent work clamp is too small.
13. 7-SEGMENT DISPLAY LIST 13.
INSTRUCTION MANUAL * Please note that the contents of this manual may differ slightly from the actual product purchased as a result of product improvements. © 2013 Brother Industries, Ltd. All Rights Reserved. This is the original instructions. BAS-311H SB4717-101 E 2013.09.
