BAS-311G BAS-326G 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.
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! instructions which follow this term indicate DANGER! The instructions may 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 cover 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 electrical line noise or static electric noise.
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 2a NOTE: Either the 2a or the 2b label is displayed on the sewing machine.
Tension release solenoid cover Motor cover Inner cover L Outer cover Fixed cover L Motor cover L Thread take-up cover Eye guard Inner cover R Outer cover Fixed cover R Motor cover R Finger guard Gas spring support cover 1900B 1901B BAS-311G, BAS-326G v
CONTENTS 1. NAMES OF MAJOR PARTS ................ 1 2. SPECIFICATIONS ................................ 2 3. INSTALLATION .................................... 3 3-1. Table processing diagram ................................ 3 3-2. Installing the control box................................... 4 3-3. Installing the oil pan.......................................... 4 3-4. Installing the machine head.............................. 5 3-5. Tilting the sewing machine head ...................... 9 3-6.
8. SEWING................................................50 11. TABLE OF ERROR CODES............... 66 8-1. Sewing .............................................................. 50 8-2. Using the STOP switch..................................... 51 8-3. Using the thread wiper switch........................... 51 12. TROUBLESHOOTING........................ 70 13. 7-SEGMENT DISPLAY....................... 73 9. CLEANING ...........................................52 9-1. Cleaning the rotary hook ............
1. NAMES OF MAJOR PARTS 1.
2. SPECIFICATIONS 2. SPECIFICATIONS Sewing machine Lock stitch, pattern tacking sewing machine (with large shuttle hook) Stitch formation Single needle lock stitch Max. sewing speed 2,700 rpm Sewing area (XxY) BAS-311G: Max. 130 x 100 mm, BAS-326G: Max. 220 x 100 mm Feed mechanism Stitch length No. of stitches Maximum no. of stitches No. of sewing data items that can be stored Work clamp lift method Work clamp height 2-step work clamp Intermittent feed, pulse motor drive 0.05 − 12.
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 3-2. Installing the control box Remove the eight 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.] 1840B (8) Power switch (9) Wood screws [2 pcs.] (10) Staples [4 pcs.] Operator 1841B 3-3. Installing the oil pan For motor-driven work clamp specifications, install the treadle unit mounting bolt (A) before installing the oil pan. (Refer to "3-7.
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 and the rubber cushions. 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.
3. INSTALLATION (10) Auxiliary plate (11) Bolts with washer [10 pcs.] Loosen the bolts with washer (12) and adjust so that the auxiliary plate (10) and the needle plate are at the same height. Needle plate NOTE: Install the auxiliary plate so that it is horizontal. 5218Q Move the work clamp arm all the way to the right when looking from the front of the sewing machine (the direction of the arrow in the illustration), and then gently tilt back the machine head.
3. INSTALLATION Be sure to install so that the side with “UP” on it is facing upward. (13) Gas spring holders [2 pcs.] (14) Spacer (15) Bolt (16) Nut (17) Gas spring (18) Shaft collars [2 pcs.] (19) Gas spring shaft D (20) Plain washers [2 pcs.] (21) Retaining rings E [2 pcs.] (22) Bolts [2 pcs.] (23) Plain washers (medium) [2 pcs.] (24) Plain washers (large) [2 pcs.] (25) Spring washers [2 pcs.] (26) Nuts [2 pcs.
3. INSTALLATION Figure 1 Oil pan 5219Q • Gently return the machine head to its original position. • Loosen the screw (31). Move the machine head switch (32) to the position shown in the illustration, and then secure the machine head switch (32) with the screw (31) and the accessory M3x20 screw (33). • Check that the machine head switch (32) is turned on as shown in figure 1. NOTE: If the machine head switch is not turned on, errors "E050", "E051" and "E055" will be generated.
3. INSTALLATION 3-5. Tilting the sewing machine head CAUTION 4918Q 4919Q 1. Move the presser arm assembly (1) as far as it will go in the direction of the arrow in the illustration (to the right when looking from the front of the sewing machine). 2. Stand at the left side of the table, and gently tilt the machine head towards you. NOTE: Always be sure to move the work clamp arm all the way to the right before tilting back the machine head.
3. INSTALLATION 3-7. Installing the treadle unit (motor-driven work clamp specifications) (1) (2) (3) (4) (5) Treadle unit Bolts [3 pcs.] Plain washers [3 pcs.] Spring washers [3 pcs.] Nuts [3 pcs.] NOTE: • Install the bolt for mounting hole A before installing the oil pan. (Refer to “3-3. Installing the oil pan.”) • Mounting hole B is used to install the gas spring supports with the bolt, plain washer, spring washer and nut. (Refer to "3-4. Installing the machine head".
3. INSTALLATION 3-9. Connecting the cords 1. Gently tilt back the machine head. 2. Pass the cord bundle through the hole in the work table. 3. Loosen the two screws (1), and then open the cord presser plate (2) in the direction of the right arrow and pass the cord bundle through the opening. 4. Securely connect the connectors as indicated in the table below. NOTE: • Check that the connector is facing the correct way, and then insert it firmly until it locks into place.
3. INSTALLATION Press the tab. NOTE: Route the X, Y and work clamp pulse motor harnesses so that they do not touch the PMD P.C. *1 : Be sure to make the ground connection. (Refer to "3-10. Connecting the ground wire".) Connection location on power supply motor P.C.
3. INSTALLATION 5. Close the cord presser plate (2) in the direction of the left arrow, and secure it by tightening the two screws (1). Note: Close the cord presser plate (2) securely so that no foreign objects, insects or small animals can get inside the control box. 6. Check that the cords do not get pulled, and then gently return the machine head to its original position. 4927Q 3-10. Connecting the ground wire CAUTION Be sure to connect the ground.
3. INSTALLATION 3-11. Connecting the power cord 1. Attach an appropriate plug to the power cord (1). (The green and yellow wire is the ground wire.) 2. Insert the plug into a properly-grounded AC power supply. * The inside of the control box uses single-phase power. NOTE: Do not use an extension cord. If this is not observed, it may cause problems with correct operation.
3. INSTALLATION 3-13. 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. 4931Q Connect each air tube to the position with the corresponding number.
3. INSTALLATION 3-14. 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) Eye guard assembly (2) Plain washers [2 pcs.] (3) Screws [2 pcs.] 4934Q 3-15. Installing the motor cover 4935Q (1) (2) (3) (4) (5) (6) Motor cover R Screws [4 pcs.] Motor cover L Screws [4 pcs.] Motor cover Screws [4 pcs.] NOTE: Be careful not to clamp the cords when installing the motor cover.
3. INSTALLATION 3-16. 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 3-17. 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) Machine head fixing bolt NOTE: When operating the sewing machine, remove the machine head fixing bolt.
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). 4941Q 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. 4421Q 2 Press the THREAD/CLAMP key. All indicators switch off • The work clamp will drop. • The tension discs will open. 3 4 THREAD/CLAMP indicator illuminates MENU indicator switches off Threading the thread. • When 5 minutes have passed, the buzzer will sound and the tension discs will close.
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. Injury or damage to the sewing machine may result. 4429Q 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. Depress the foot switch to the 2nd step.
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 4945Q 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 Heavy-weight materials (-01) Medium-weight materials (-02) Seatbelt (-03) Upper thread #20 or similar #50 or similar #4 or similar Lower thread #20 or similar #50 or similar #4 or similar Upper thread tension (N) 1.4 − 1.8 0.8 − 1.2 1.2 − 2.0 0.2 − 0.3 Lower thread tension (N) 1.0 − 1.5 Pre-tension (N) 0.1 − 0.6 0.1 − 0.3 0.3 − 0.
4. PREPARATION BEFORE SEWING 4-6. Home position detection 4950Q Before starting home position detection, check that the needle bar is at its highest position. Turn the pulley (1) until the ridge at the bottom of the thread take-up (2) is aligned with the processed line on the arm. Aligned 5223Q 4421Q 1. Turn on the power switch. The power indicator (3) will illuminate, and the model number will appear in the PROGRAM No. display (4) and the specifications class will appear in the menu 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 4435Q (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 start test mode. (5) TEST indicator Illuminates when the TEST key (4) has been pressed. (6) THREAD/CLAMP key Used to start threading mode or work clamp height setting mode.
5. USING THE OPERATION PANEL (BASIC OPERATIONS) (10) X-SCALE indicator Illuminates when the SELECT key (15) is pressed to shown the X-scale setting. (11) Y-SCALE indicator Illuminates when the SELECT key (15) is pressed to shown the Y-scale setting. (12) SPEED indicator Illuminates when the SELECT key (15) is pressed to shown the sewing speed setting. (13) COUNTER indicator Illuminates when the SELECT key (15) is pressed to shown the lower thread or production counter setting. (14) SPLIT No.
5. USING THE OPERATION PANEL (BASIC OPERATIONS) 5-2. Loading sewing data Refer to "7-1. Notes on handling CF cards (sold separately)" for details on using CF cards. 1 With the power turned off, insert the CF card into the CF slot. NOTE: • Make sure the CF card is facing the correct way when inserting it. • Always be sure to keep the cover closed except when inserting and removing the CF card. If this is not done, dust may get inside and cause problems with operation. 4453Q 2 Turn on the power switch.
5. USING THE OPERATION PANEL (BASIC OPERATIONS) 5-4. Setting the X-scale and Y-scale The scales are set to 100 (%) at the time of shipment from the factory. 1. Press the SELECT key (1) so that the X-SCALE indicator (2) (for X-scale setting) or the Y-SCALE indicator (3) (for Y-scale setting) is illuminated. • The setting value (%) will appear in the menu display (4). * When memory switch no. 402 is set to "ON", the settings will be displayed in units of mm. 2.
5. USING THE OPERATION PANEL (BASIC OPERATIONS) 5-6. Checking the sewing pattern Use test feed mode to check the needle movement with only the feed mechanism operating. Check that the needle hole does not come out from the frame of the work clamp. 1 Press the TEST key. TEST indicator illuminates 2 Select the program number to be checked, and then set the X-scale and the Y-scale. • The program number will flash. Depress the foot switch to the 2nd step.
5. USING THE OPERATION PANEL (BASIC OPERATIONS) 5-7. Setting the work clamp lift amount The setting for the 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 Press the THREAD/CLAMP key. The sewing machine will switch to threading mode. • " 1" will appear in the PROGRAM No. display, and the work clamp will drop.
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 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. List of advanced functions While holding down the TEST key, press the corresponding combination key. 4488Q 1 Memory switch setting mode Refer to "6-2. Setting memory switches". 4489Q 2 Lower thread counter setting mode Refer to "6-4. Using the lower thread counter". 4490Q 3 Production counter setting mode Refer to "6-5. Using the production counter".
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS) 6-2. Setting memory switches 1 While pressing the SELECT key, turn on the power switch. * Keep pressing the SELECT key until the model name is displayed and the buzzer beeps once. All indicators switch off or With the power turned on, press the TEST key and the TENSION/WIND key simultaneously. • The memory switch number will appear in the PROGRAM No. display, and its setting value will appear in the menu display.
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS) 6-3. List of memory switch settings No. 001 002 003 100 200 300 400 401 402 403 Setting Setting items range Work clamp lift timing after sewing is completed OFF Lifts at the final stitch position. ON Lifts after moving to the sewing start position. Separate-type work clamp drop operation (pneumatic work clamp specifications) 0 Left and right work clamp drop at the same time. 1 Work clamp drops in the order left → right.
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS) 6-4. 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 While pressing the TEST key, press the key. • The initial value which was set previously will appear in the menu display.
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS) 6-5. Using the production counter 1 While pressing the TEST key, press the key. • The counter value that was previously set will appear as a 7-digit number in the PROGRAM No. display and the menu display. TEST indicator and SPEED indicator illuminate COUNTER indicator flashes 2 4464Q 4465Q Press the or key to set the counter value. • The counter value can be set to between "000" "0000" and "999" "9999".
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS) 6-6. Setting the split number 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 3: Split No. 3 Pattern 2 4964Q Pattern 3 1. Press the or key (1) to select a program number for a program that contains split data.
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS) 6-7. Using user programs Up to 50 different combinations of settings including program no., X-scale, Y-scale, sewing speed, work clamp height and intermittent presser foot height can be memorized as user programs (U1 to U50). (However, the work clamp height setting is only enabled for motor-driven work clamp specifications.㧕 If you are sewing certain patterns over and over again, it is useful to record the settings for these patterns into a user program.
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS) 6 Next, set the work clamp height (motor-driven work clamp specifications only). Press the SELECT key. or Press the be recorded. 7 THREAD/CLAMP indicator flashes Next, set the intermediate work clamp height (when memory switch No. 003 is set to “2” for motor-driven work clamp specifications). key to set the work clamp height to 4967Q Press the SELECT key. or key to set the intermediate work Press the clamp height to be recorded.
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS) 1. Press the or key (1) to select the user program number that you would like to use. • If the user program number is flashing, depress the foot switch to move the feed mechanism to the home position. After this, it is not necessary to detect the home position until the next time the power is turned off and back on, even if you change the user program number.
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS) 6-8. Using cycle programs Sewing patterns that have been recorded in user programs can be recorded in up to nine cycle programs (C-1 to C-9). One cycle program can contain up to a maximum of fifteen steps. When sewing the sewing patterns in numerical order, it can be useful to record them in a cycle program beforehand. Cycle programs are enabled when memory switch nos. 400 and 401 are set to "ON".
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS) 5 To record another cycle program, repeat steps 2 to 4. 6 End cycle program recording mode. Press the TEST key. This completes the recording of cycle programs. • The cycle program number will flash in the PROGRAM No. display, and the sewing machine will switch to home position detection standby. 4439Q TEST indicator switches off, MENU indicator illuminates 1.
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS) 1 While pressing the TEST key, press the SELECT key. • Switch to user program recording mode. Check that the menu indicators are flashing. 4970Q TEST indicator illuminates, MENU indicator flashes 2 Press a function key from F1 to F4. • Switch to cycle program recording mode. Press the function key (F1 to F4) or press the key to select the cycle program number to clear. or 4450Q MENU indicator switches off Press the RESET key.
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS) 6-10. X and Y parallel movement of sewing pattern You can move the feed mechanism to the desired position to move an already-programmed sewing pattern in a parallel direction up, down or to the left or right. 1 or key to select a program number, and then depress Press the the foot switch to the 2nd step. (If using a two-pedal foot switch, lower the work clamp before depressing the start switch.) • Home position detection will be carried out.
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS) 6-11. Clearing memory data (reinitialization) If the sewing machine stops operating normally, the cause may be that an incorrect memory setting may have been made by means of the memory switch, for instance. In such cases, normal operation may be restored if the memory data is reinitialized. Parameter No.
7. USING CF CARDS 7. USING CF CARDS 7-1. Notes on handling CF cards (sold separately) • Use a CF card with a memory capacity of 32, 64, 128, 256, 512 MB, 1GB or 2GB. (CF cards with a capacity of more than 2GB are not supported.) • Do not disassemble or modify the CF card. • Do not bend, drop or scratch CF cards or place heavy objects on top of them. • Avoid contact with liquids such as water, oil, solvents or drinks.
7. USING CF CARDS 7-3. Data read/write mode 1 With the power turned off, insert the CF card into the CF slot. NOTE: • Make sure the CF card is facing the correct way. • Always be sure to keep the cover closed except when inserting and removing the CF card. If this is not done, dust may get inside and cause problems with operation. • If no valid data can be found, the CF media indicator will not illuminate. 4453Q 2 3 Turn on the power switch. Switch to data read/write mode.
7. USING CF CARDS *1 *2 *3 *4 *5 The sewing data that can be use with this sewing machine is data that has been created for the BAS-311G/BAS-326G. Only valid when using an optional floppy disk drive. Sewing data for the BAS-300 series, BAS-300A series and BAS-300E/F series can be read. Refer to the instruction manual for the programmer for details of expansion option output. Can be selected when memory switch No. 755 = ON. Save the expansion option output data (BAS900.
7. USING CF CARDS 7-3-2. Writing all sewing data to the CF card at once 1 Select the [w 2] data read/write mode. 4578Q 2 Press the R/W key. • [SEd-] will change to [ ALL]. * If you press the or key to select the program numbers that you would like to write and then continue to carry out the following procedure, you can write the selected sewing data in separate lots. 4577Q 3 Press the R/W key.
8. SEWING 8. SEWING CAUTION Turn off the power switch at the following times. If the foot switch is depressed by mistake, the sewing machine might start operating and injury could result. • When threading the needle • When replacing the bobbin and needle • When not using the machine and when leaving the machine unattended 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. 8-1.
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. 4981Q 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㩷 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 㩷 Use a vacuum cleaner to clean the filter in the air inlet ports (2) of the control box (1) at least once a month. 㩷 4483Q 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. 㩷 2550Q 9-4. Cleaning the eye guard Wipe the eye guard clean with a soft cloth.
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 Specifications Medium-weight materials (-02) Heavy-weight materials (-01) Thread take-up spring height (mm) Thread take-up spring tension (N) 7 − 10 0.6 − 1.2 Seatbelt (-03) 2−4 0.2 − 0.5 1.0 − 1.4 Loosen the set screw (1) and turn the adjuster to adjust. Lower Higher 5022Q Turn the tension stud (2) with a screwdriver to adjust the tension.
10. STANDARD ADJUSTMENTS 10-4. Adjusting the needle bar height 2552Q 4992Q Turn the machine pulley 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 10-7. Adjusting the needle clearance 0.01 − 0.08mm (Seatbelt: 0.1 – 0.2 mm) 0138Q 4995Q Turn the machine pulley 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 − 0.08 mm. 10-8.
10. STANDARD ADJUSTMENTS 10-10. Adjusting the position of the movable knife 4950Q 5232Q 5234Q Reverse position 5255Q 5233Q 1. Open the top cover and tilt back the machine head. 2. Turn the pulley (1) by hand to lower the needle bar to its lowest position, and push the thread trimmer solenoid (2) as far as it will go. 3.
10. STANDARD ADJUSTMENTS 4950Q 5237Q 5238Q 7. Turn the pulley (1) by hand to move the needle bar to its lowest position. 8. Loosen the nut (10), tighten the set screw (11) 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. 9. Tighten the nut (10), and then check that the collar (3) is not touching the inside of the groove in the thread trimmer cam (4).
10. STANDARD ADJUSTMENTS 10-11. Replacing the movable and fixed knives 5002Q 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). 5003Q 5004Q 4. Install the new fixed knife (7) in the position shown in the illustration. 5.
10. STANDARD ADJUSTMENTS 10-11-1. Installing the feed plate 1 All indicators switch off While pressing the THREAD/CLAMP key, turn on the power switch. * Keep pressing the THREAD/CLAMP key until the model name is displayed and the buzzer beeps once. • "CLMP" will appear in the menu display. 2 2nd step MENU indicator switches off 5005Q 4421Q THREAD/CLAMP indicator illuminates Depress the foot switch to the 2nd step.
10. STANDARD ADJUSTMENTS 10-12. Adjusting the thread wiper Approx. 2mm 5007Q 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. 5010Q 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 5015Q 5013Q 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 "5-7. Setting the work clamp lift amount.") The maximum lift amount for the work clamp is 30 mm above the top of the needle plate. Max. 30mm 5018Q 5019Q 1. Turn on the air, and depress the work clamp switch (1) to raise the work clamp (2). 2.
11. TABLE OF ERROR CODES 11. TABLE 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 cover of the control box. 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. TABLE OF ERROR CODES Upper shaft motor-related errors Cause and remedy Code Needle up stop position error. E110 Turn the machine pulley until the point where the error display disappears. Upper shaft did not stop at the needle up stop position when the sewing machine stopped. E111 Turn the machine pulley until the point where the error display disappears. Needle drop signal could not be detected. E120 Turn off the power, and then check the synchronizer connection. Thread trimming was not completed.
11. TABLE OF ERROR CODES Work clamp-related errors Cause and remedy Code 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 connector P3 on the PMD P.C. board and connector P5 on the main P.C. board are properly connected. Work clamp raised or lowered position cannot be detected. E301 Turn off the power, and then check if there are any problems in the work clamp vertical direction.
11. TABLE OF ERROR CODES Data editing-related errors Cause and remedy Code The enlargement ratio setting caused the sewing data to extend outside the sewing area. E500 Set the enlargement ratio again. Sewing data that exceeds the sewing machine's sewing area was loaded. E501 Check the size of the sewing data. The enlargement ratio caused the data pitch to exceed the maximum pitch of 12.7 mm. E502 Set the enlargement ratio again. Invalid code in sewing data.
12. TROUBLESHOOTING㩷 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 troubleshooting. If the foot switch is depressed by mistake, the sewing machine might start operating and injury could result. Problem Work clamp does not lift.
12. TROUBLESHOOTING Problem Upper thread breaks. Cause Skipped stitches occur. Reference Upper thread tension is too strong. Adjust the upper thread tension. P. 23 Needle is incorrectly installed. Install the needle correctly. P. 19 Thread is too thick for the needle. Select a thread that matches the needle. P. 23 Adjust the tension and height of the thread take-up spring. P. 55 Thread take-up spring height are incorrect. Lower thread breaks.
12. TROUBLESHOOTING㩷 Problem Upper thread trimmed. Cause is not Remedy Movable knife is not cutting cleanly. Replace with a new one. P. 60 Fixed knife is not cutting cleanly. Sharpen the fixed knife or replace it with a new one. P. 60 Adjust the position of the shuttle race thread guide. P. 57 Adjust the needle bar lift amount. P. 56 Movable knife is not picking up the upper thread because the last stitch is being skipped. Refer to "Skipped stitches occur". P.
13. 7-SEGMENT DISPLAY 13.
㪤㪜㪤㪦 BAS-311G, BAS-326G 74
INSTRUCTION MANUAL http://www.brother.com/ 15-1, Naeshiro-cho, Mizuho-ku, Nagoya 467-8561, Japan. Phone: 81-52-824-2177 © 2005, 2008 Brother Industries, Ltd. All Rights Reserved. BAS-311G, 326G SA6236-201 E 2008.08.