Brother BAS-342G Instruction Manual

Direct drive, programmable electronic pattern sewer
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BAS-342G
INSTRUCTION MANUAL
Please read this manual before using the machine.
Please keep this manual within easy reach for quick reference.
DIRECT DRIVE
PROGRAMMABLE ELECTRONIC PATTERN SEWER

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Summary of Contents for Brother BAS-342G

  • Page 1 BAS-342G INSTRUCTION MANUAL Please read this manual before using the machine. Please keep this manual within easy reach for quick reference. DIRECT DRIVE PROGRAMMABLE ELECTRONIC PATTERN SEWER...
  • Page 2 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. BAS-342G...
  • Page 3: Safety Instructions

    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”.) BAS-342G...
  • Page 4 Keep the oil out of the reach of children. 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. BAS-342G...
  • Page 5: Maintenance And Inspection

    Any problems in machine operation which result from unauthorized modifications to the machine will not be covered by the warranty. BAS-342G...
  • Page 6 Direction of operation Rear cover Rear cover Thread take-up cover Inside cover R Middle cover Outside cover Eye guard Finger guard Fixed cover 3956M BAS-342G...
  • Page 7 Tension release solenoid cover Inside cover L Motor cover Middle cover Outside cover Rear cover Fixed cover X motor cover 3957M BAS-342G...
  • Page 8: Table Of Contents

    5-5. Installing the bobbin case ......... 23 at once ............50 5-6. Thread tension..........24 5-6-1. Lower thread tension......24 5-6-2. Upper thread tension......24 5-7. Home position detection ........25 5-8. Setting 2-step operation for the work clamp..26 BAS-342G...
  • Page 9 11-10-1. Installing the feed plate ....62 11-11. Adjusting the thread wiper......62 11-12. Presser foot installation position....63 11-13. Changing the intermittent stroke ....63 11-14. Adjusting the work clamp lift amount.... 65 11-15. Adjusting the air pressure......65 BAS-342G...
  • Page 10: Names Of Major Parts

    Finger guard Power switch (13) Eye guard Work clamp switch (14) Thread take-up cover Start switch (15) Motor cover Control box Solenoid valve Operation panel Thread wiper switch (10) Pulley (11) Cotton stand is a trademark of SanDisk Corporation. BAS-342G...
  • Page 11: Specifications

    Single-phase 220 V, Three-phase 220 V/380 V/400 V 500 VA Air pressure 0.5 MPa 1.8 l/min. * The number of data items and stitches that can be stored will vary depending on the number of stitches in each program. BAS-342G...
  • Page 12: Table Processing Diagram

    • If using casters, use ones which can bear the total weight of sewing machine and table. • 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. 4053M BAS-342G...
  • Page 13: Installation

    Carry out the procedures indicated by [1] to [15] in the titles in the order of the numbers. 4-1. Removing the machine head fixing bolts [1] If the sewing machine was already installed to the table when it was delivered, remove the two machine head fixing bolts (1) and the two plain washers (2). 3960M BAS-342G...
  • Page 14: Installing The Control Box [2]

    3961M that the model plate (a) on the control box (1) is “AX342G” to indicate that it is an RX-control box for BAS-342G sewing machines. * If the sewing machine is installed to the table, tilt back the machine head.
  • Page 15: Installing The Oil Pan And Support Lever Base

    ! Do not let the side (d) of the safety switch lever touch the support lever base (b). (1) Rubber bushes (2 pcs.) (2) Hinge holders (2 pcs.) (3) Plain washers [4 pcs.] (4) Spring washers [4 pcs.] (5) Bolts [4 pcs.] 3965M (Continued on next page) BAS-342G...
  • Page 16: Tilting Back And Returning The Machine Head

    If you hold at the place indicated by (b), your hand will get caught between the support lever (1) and the table when the machine head is returned to its original position and injury will result. The machine head can be tilted Disengaging back and returned to one of three the stopper heights. Engaging the stopper 3967M BAS-342G...
  • Page 17: Installing The Gas Spring

    (17) Gas spring shaft U (18) Set screw After installing the gas spring (8), gently return the machine head to its original position. Refer to "4-5. Tilting back and returning the machine head". Note that the L and R shapes are different. 3969M BAS-342G...
  • Page 18: Installing The Operation Panel [3]

    < If the sewing machine was already installed to the table when it was delivered > (1) Operation panel (2) Bolts [3 pcs.] * Pass the cords of the operation panel (1) through the operation panel stand (3) and under the table. 3971M BAS-342G...
  • Page 19: Installing The Solenoid Valve Assembly

    (4) and air hose (2). 4. Open the cock (1). (The meter pointer will turn clockwise.) Open NOTE: Turn the cock (1) gently to open it. 5. Adjust the air pressure. (Refer to the next page.) Close 3974M BAS-342G...
  • Page 20: Adjusting The Air Pressure [6]

    Fully tighten and then loosen by Valve 2 Upper knob Valve 2 5 turns Lower knob Fully tighten You can operate the work clamp when the power is turned off by pressing the manual buttons (1). Valve 1 3976M BAS-342G...
  • Page 21: Connecting The Cords [8]

    P1 (PANEL) Safety switch 3-pin P9 (HEAD-SW) Home position sensor assembly 12-pin P8 (SENSOR1) STOP switch 6-pin P13 (HEAD) Valve harness 12-pin P12 (AIR1) Programmer relay harness 8-pin P7 (PRG) Fan 6-pin P10 (SENSOR2) 3978M (Continued on next page) BAS-342G...
  • Page 22 P3 (PPM) (5), (6) Thread trimmer solenoid 6-pin P6 (SOL1) (5), (6) Tension release solenoid 4-pin P7 (SOL2) (5), (6) Y pulse motor 4-pin blue P8 (YPM) (5), (6) X pulse motor 4-pin white P10 (XPM) (5), (6) 3979M BAS-342G...
  • Page 23: Connecting The Ground Wire [9]

    (1) Ground wire from upper shaft motor harness (2) Ground wire from the machine head (3) Ground wire from operation panel (4) Ground wires from two-pedal foot switch harnesses (2 wires) NOTE: Make sure that the ground connections are secure in order to ensure safety. BAS-342G...
  • Page 24: Securing The Cords And Air Tubes [10]

    5. Secure the cover of the control box by tightening the eight screws (5). Check that the cords are not clamped by the cover at this time. 3982M BAS-342G...
  • Page 25: Installing The Eye Guard [11]

    (2) Plain washers [2 pcs.] (3) Screws [2 pcs.] 4934Q 4-17. Installing the cotton stand [12] (1) Cotton stand NOTE: Fit the washer (2), and then securely tighten the nut (3) so that the cotton stand does not move. 3983M BAS-342G...
  • Page 26: Lubrication [13]

    If there is no more oil on the felt of the shuttle race base assembly, problems with sewing may result. 3. If using the needle cooler (3), fill it with silicon oil (100 /s). (Refer to "5-3. Threading the upper thread" for details on using the needle cooler (3).) 3984M 3985M 3986M BAS-342G...
  • Page 27: Connecting The Power Cord [14]

    3. Push down the right side of the safety switch (1) as fas as possible so that the safety switch (1) turns on, and then tighten the two screws (2). 4. Turn on the power and check that no error numbers are displayed. 3989M BAS-342G...
  • Page 28: Preparation Before Sewing

    (right side) is then depressed, the sewing machine starts operating. The work clamp (2) lowering method can be changed Work clamp switch using memory switch No. 002. (Refer to "7-3. List of Start switch memory switch settings.") 3992M BAS-342G...
  • Page 29: Threading The Upper Thread

    • When threading the thread through the needle, allow a distance of approximately 42 mm between the needle hole and the end of the thread. If the trailing length of the thread is too long, it may cause the thread to become tangled. BAS-342G...
  • Page 30: Threading Mode

    * When memory switch No. 564 is set to "2", the buzzer will sound after one minute has elapsed, and the tension discs will close. Ending threading mode Press the THREAD/CLAMP key. • The work clamp and the intermittent presser foot will return to the position they were at before threading mode began. THREAD/CLAMP indicator switches off BAS-342G...
  • Page 31: Winding The Lower Thread

    Loosen the set screw (9) and move the bobbin winder tension assembly (10) up and down to adjust. For case A * For case A, move the bobbin winder tension assembly (10) down, and for case B, move it upward. For case B 4001M BAS-342G...
  • Page 32: Installing The Bobbin Case

    4. Check that the bobbin turns in the direction of the arrow when the thread is pulled. 5. Pass the thread through the lever thread hole (4), and then pull out approximately 30 mm of thread. 6. Hold the latch on the bobbin case and insert the bobbin case into the rotary hook. BAS-342G...
  • Page 33: Thread Tension

    1. Turn the tension nut (1) (main tension) to adjust the tension as appropriate for the material being sewn. 2. Use the tension nut (2) (sub tension) to adjust the upper thread trailing length to about 42 mm. Stronger Weaker Stronger Weaker 4003M BAS-342G...
  • Page 34: Home Position Detection

    NOTE: If error "E110" is displayed when the start switch (7) is depressed, turn the pulley (1) in the direction of operation to clear the error display. 4007M 4008M BAS-342G...
  • Page 35: Setting 2-Step Operation For The Work Clamp

    2. With the work clamp (1) raised, loosen the wing screw (2). 3. Move the work clamp stopper (3) to its highest position, and then tighten the wing screw (2) to secure the work clamp stopper (3) in place. 4011M BAS-342G...
  • Page 36: Using The Operation Panel (Basic Operations)

    Used to start threading mode or work clamp height setting mode. (7) THREAD/CLAMP indicator Illuminates when the THREAD/CLAMP key (6) has been pressed. (8) TENSION/WIND key Used to wind the lower thread. (9) TENSION/WIND indicator Used when the digital tension set (option) is installed. BAS-342G...
  • Page 37 (22) Function keys [F1, F2, F3, F4] Used to select user programs and to set and select cycle programs. (23) R/W key Used to read data from and write data to external media. is a trademark of SanDisk Corporation. BAS-342G...
  • Page 38: Loading Sewing Data

    • The program number will stop flashing and illuminate steadily. NOTE: After completing the setting, be sure to refer to "6-6. Checking the sewing pattern" to check that the needle drop position is correct. 4012M BAS-342G...
  • Page 39: Setting The X-Scale And Y-Scale

    1. Press the SELECT key (1) until the SPEED indicator (2) illuminates. • The setting value (rpm) will appear in the menu display (3). 2. Press the key (4) to set the sewing speed. (Sewing speed setting: 400 − 2700) 4956Q BAS-342G...
  • Page 40: Checking The Sewing Pattern

    When the start switch (2) is depressed, sewing will start. TEST indicator switches off 4014M If test feeding continues until the Press the TEST key. final stitch, the work clamp will move to the sewing start position and then stop. TEST indicator switches off BAS-342G...
  • Page 41: Setting The Height Of The Intermittent Presser Foot

    When lowered with the needle plate. (Refer to page 63.) Intermittent stroke Refer to "11-13. Changing the intermittent stroke" when making the adjustment. While sewing 5033Q BAS-342G...
  • Page 42: Using The Operation Panel (Advanced Operations)

    Production counter setting mode Refer to "7-5. Using the production counter". 4491Q When SPEED indicator is illuminated Production counter temporary display function Refer to "7-5. Using the production counter". 4492Q User program setting mode Refer to "7-7. Using user programs". 4493Q BAS-342G...
  • Page 43: Setting Memory Switches

    RESET key while the number for that memory switch is displayed. • To return the settings for all memory switches to the default settings, keep pressing the RESET key for two or more seconds until the buzzer makes a long beep. BAS-342G...
  • Page 44: List Of Memory Switch Settings

    Continuous split (split menu is always enabled) Independent split (*1) The position of the work clamp stopper must be set. (Refer to "5-8. Setting 2-step operation for the work clamp".) (*2) The mm display may differ slightly from the actual sewing size. BAS-342G...
  • Page 45: Using The Lower Thread Counter

    However, this value will not be stored as the initial value. * If a lower thread counter value is set, the lower thread counter will operate even if the lower thread counter is not being displayed. 4963Q BAS-342G...
  • Page 46: Using The Production Counter

    (2). Press the TEST key (6) or the SELECT key (1) to switch the menu back to the normal menu display. * You can start sewing while the temporary display still appears. 4468Q BAS-342G...
  • Page 47: Setting The Split Number

    • Sewing is carried out each time in the order of steps 1 → 2 → 3 → 1 (for example, if there are two sections of split data). [Independent split] Memory switch No. 403 = 2 • The pattern for the displayed split number is sewn independently. BAS-342G...
  • Page 48: Using User Programs

    Press the SELECT key. Press the key to set the X-scale to be recorded. 4470Q X-SCALE indicator flashes Next, set the Y-scale. Press the SELECT key. Press the key to set the Y-scale to be recorded. 4472Q Y-SCALE indicator flashes BAS-342G...
  • Page 49 End user program recording mode. Press the TEST key. This completes the recording of a user program. • The user program number will flash in the PROGRAM No. display. 4971Q TEST indicator switches off, MENU indicator illuminates (Continued on next page) BAS-342G...
  • Page 50 Press and hold the RESET key for 2 seconds or more. • The buzzer will sound and all user programs will be cleared. NOTE: If any cycle programs have been memorized, all of the memorized cycle programs will also be cleared. BAS-342G...
  • Page 51: Using Cycle Programs

    2. Press the SELECT key until the desired step is reached. <For cycle programs C-5 to C-9> 1. Press the key to switch the cycle program number. 2. Select the desired cycle program number again, and then press the SELECT key until the desired step is reached. BAS-342G...
  • Page 52 The setting cannot be changed at this time. NOTE: If cycle program sewing mode is active (when memory switch no. 401 is "ON") but no cycle programs have been recorded, the user programs will be sewn in numeric order. BAS-342G...
  • Page 53: Direct Selection (Combination Table)

    U1 to U4 and C-1 to C-4 can be selected using function keys F1 to F4. U5 to U10 and C-5 to C-9 can be selected by simultaneously pressing combinations of function keys F1 to F4 (addition). U5/C-5 U6/C-6 U7/C-7 U8/C-8 U9/C-9 BAS-342G...
  • Page 54: And Y Parallel Movement Of Sewing Pattern

    • In addition, the amount of movement will be reset if the power switch is turned off and then back on again. However, memory switch No. 465 is set to "ON", the amount of movement will be recorded and will not be reset. (Refer to the service manual for details on memory switch No. 465.) BAS-342G...
  • Page 55: Clearing Memory Data (Reinitialization)

    • A long beep will sound and the data for the selected item will be reinitialized. • The setting details for only the initialized item will change from flashing to steadily illuminated. End data initialization mode Press the TEST key. TEST indicator switches off BAS-342G...
  • Page 56: Using Cf Cards

    No. 752 in order to change the folder name. Change the folder name if you would like to store sewing data for different sewing machines on a single CF card. (Refer to the service manual for details on memory switch No. 752.) BAS-342G...
  • Page 57: Data Read/Write Mode

    The sewing data that can be used with this sewing machine is data that has been created for the BAS-300G series. 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. BAS-342G...
  • Page 58: Reading All Sewing Data From The Cf Card At Once

    RESET key, the display will change back to [ ALL]. 4976Q Loading End data read/write mode Press the TEST key. Turn off the power switch, remove the CF card, and then close the cover of the CF slot. TEST indicator switches off BAS-342G...
  • Page 59: Writing All Sewing Data To The Cf Card At Once

    End data read/write mode Press the TEST key. Turn off the power switch, remove the CF card, and then close the cover of the CF slot. TEST indicator switches off Refer to the service manual for details on other read/write modes. BAS-342G...
  • Page 60: Sewing

    Use a work clamp and a feed plate which will hold the article securely so that it does not slip. If using the standard work clamp and feed plate and the article being sewn is slipping, take measures to stop the work clamp and feed plate from being slippery. BAS-342G...
  • Page 61: Using The Stop Switch

    Depress the start switch (4). • The sewing machine will start operating and sewing will start. 4022M 9-3. Using the thread wiper switch The thread wiper switch (1) can be used to turn the thread wiper (2) on and off. 4023M BAS-342G...
  • Page 62: Cleaning

    (4), the top of the rotary hook thread guide and the shuttle race. 4024M 10-2. Draining the oil 1. Remove and empty the oiler (1) whenever it is full. 2. After emptying oiler (1), screw it back into its original position. 4025M BAS-342G...
  • Page 63: Checking The Regulator

    4987Q 10-6. Checking the needle Always check that the tip of the needle is not broken and also that the needle is not bent before starting sewing. 4028M 10-7. Lubrication Lubricate the sewing machine while referring to "4-18. Lubrication". BAS-342G...
  • Page 64: Standard Adjustments

    3. Use a screwdriver to turn the tension stud (5) in order to adjust the tension of the thread take-up spring (3). Stronger Weaker 4030M NOTE: If the thread tension spring (3) is not adjusted correctly, the upper thread trailing length will be uneven after thread trimming. BAS-342G...
  • Page 65: Adjusting Arm Thread Guide R

    (3) so that the tip of the rotary hook is aligned with the center of the needle. * If using a DP X 5 needle, use the second reference line from the top of the needle bar (reference line b). BAS-342G...
  • Page 66: Adjusting The Driver Needle Guard

    If the shuttle race thread guide (1) is in the wrong position, thread breakages, soiled thread or tangling of the thread may occur. The position of the shuttle race thread guide (1) is adjusted at the time of shipment from the factory. It should not be changed if possible. BAS-342G...
  • Page 67: Adjusting The Rotary Hook Lubrication Amount

    • If the position of the sub-tank (4) is lowered, the lubrication amount will decrease. 5. Return the machine head to its original position. More oil 6. Install the X motor cover (2) with the four screws (1). Less oil 4038M BAS-342G...
  • Page 68: Adjusting The Position Of The Movable Knife

    6. Move the movable knife connecting plate (10) back and forth to adjust so that the distance from the ridge on the right side of the needle plate to the ridge on the movable knife (9) is 9.5 to 9.9 mm. 7. After tightening the bolt (8), check the above position once more. BAS-342G...
  • Page 69 11. Check that there is a gap of about 0 - 1 mm between the outside of the hole in the movable knife (9) and the ridge line on the shuttle race thread guide (13) when there is still play between the parts. BAS-342G...
  • Page 70: Replacing The Movable And Fixed Knives

    7. Apply grease to the pin (12), place it into the movable knife connecting plate (13), and install it to the needle plate (5). 8. Check that the needle is aligned with the center of the needle hole. 9. Install the feed plate (2). (Refer to the next page.) BAS-342G...
  • Page 71: Installing The Feed Plate

    2 mm and the tip of the thread wiper (2) is approximately 3 mm from the center of the needle when the thread wiper (2) passes below the needle during operation. NOTE: Check that the thread wiper (2) does not touch the finger guard (6). BAS-342G...
  • Page 72: Presser Foot Installation Position

    (Refer to the next page.) Installation position Intermittent stroke range 2 − 4.5mm 4.5 − 10mm 0 mm (Presser foot does not move up and down) 5012Q BAS-342G...
  • Page 73 <If they are touching> Remove the motor cover (4). Loosen the nut (5), and turn the bolt (6) until it is pressing against the intermittent drive lever (7), and then adjust until the two points mentioned above are not touching. BAS-342G...
  • Page 74: Adjusting The Work Clamp Lift Amount

    11-15. Adjusting the air pressure Lift up the handle (2) of the regulator (1) and then turn it to adjust the air pressure to 0.5 MPa. After adjustment is complete, push the handle (2) downward to lock it. 3975M BAS-342G...
  • Page 75: Table Of Error Codes

    Turn off the power, and then check the synchronizer connection. Thread trimming was not completed. E121 Turn off the power, and then check if the cutting edges of the fixed knife and movable knife are damaged or worn. (Continued on next page) BAS-342G...
  • Page 76 Intermittent presser foot raised or lowered position cannot be detected. E301 Turn off the power, and then check if there are any problems in the intermittent presser foot vertical direction. Problem with work clamp motor home position adjustment data. E303 Re-adjust the home position. BAS-342G...
  • Page 77 Machine head memory is not connected. E452 Turn off the power, and then check that connector P3 on the power supply motor P.C. board is properly connected. Internal memory is full and copying is not possible. E474 Clear the sewing data. BAS-342G...
  • Page 78 Check that connector P10 on the main P.C. board is properly connected. If an error code that is not listed above appears or if carrying out the specified remedy does not solve the problem, contact the place of purchase. BAS-342G...
  • Page 79: Troubleshooting

    Refer to "Skipped stitches occur". P. 71 the needle. start. Upper thread trailing length is uneven. Adjust the sub-tension. P. 24 Position of shuttle race thread guide is Adjust the position of the shuttle race P. 57 incorrect thread guide. BAS-342G...
  • Page 80 Needle and rotary hook timing is Adjust the needle bar lift amount. P. 56 incorrect. Shuttle race thread guide Adjust the position of the shuttle race P. 57 separating the threads. thread guide. BAS-342G...
  • Page 81 Safety switch does not work. Adjust the position of the safety switch. P. 18 depressed. If the safety switch is malfunctioning, replace it with a new one. BAS-342G...
  • Page 82: Segment Display

    14. 7-SEGMENT DISPLAY 0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z BAS-342G...
  • Page 83 MEMO BAS-342G...
  • Page 84: Instruction Manual

    INSTRUCTION MANUAL http://www.brother.com/ 15-1, Naeshiro-cho, Mizuho-ku, Nagoya 467-8561, Japan. Phone: 81-52-824-2177 © 2007 Brother Industries, Ltd. All Rights Reserved. BAS-342G SA8777-001 E 2007.05. B (1)

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