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Brother BAS-343E Instruction Manual

E series programmable electronic pattern sewer
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BAS-343E
INSTRUCTION MANUAL
Please read this manual before using the machine.
Please keep this manual within easy reach for quick reference.
PROGRAMMABLE ELECTRONIC PATTERN SEWER

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  • Page 1 BAS-343E INSTRUCTION MANUAL Please read this manual before using the machine. Please keep this manual within easy reach for quick reference. PROGRAMMABLE ELECTRONIC PATTERN SEWER...

  • Page 2: 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-343E...

  • Page 3: Notes On Safety

    Brother dealer or a qualified tech- times, otherwise the machine may operate if nician. the start switch is pressed by mistake, which could result in injury. • When not using the machine • When leaving the machine unattended BAS-343E...
  • Page 4 Disconnect the air hoses from the air supply or returning it to its original position. and wait for the needle on the pressure gauge to drop to "0" before carrying out inspection, adjustment and repair of any parts which use the pneumatic equipment. BAS-343E...

  • Page 5: Warning Labels

    5 minuten, avantd' ouvrir le capot principal y esperar 5 opening this cover. bevor sie diese minutos antes de abrir abdeckung öffnen. esta cubierta. Belt cover X-Puls motor cover LXY (RXY) -base cover Thread take-up cover Eye guard BAS-343E...

  • Page 6: Table Of Contents

    ..................22 6-7. Changing the X-SCALE and Y-SCALE settings ..............22 6-8. Using the bobbin thread counter ....................23 6-9. Using production counter ......................... 24 6-10. Using single split mode ........................25 6-11. Shifting a stitch pattern ........................26 BAS-343E...
  • Page 7 10-2. DIP switches inside the control box ..................... 44 11. Changing special functions using the memory switches ..........46 12. Error codes ..............................50 13. Gauge parts list according to subclasses ................53 14. Troubleshooting ............................54 15. Option ................................58 BAS-343E...

  • Page 8: Name Of Each Parts

    Emergency stop switch Thread breakage detector Operation panel Thread wiper switch Programmer Power switch Air regulator Control box Solenoid valve Integrater Presser lifter pedal Starting pedal X-puls motor cover Cloth presser cover Cassette stand Auxiliary work clamp cylinder Cassette plate BAS-343E...

  • Page 9: Specifications

    Single-phase 110V, 220V, 230V, 3-phase 200V, 380V, 400V, 900VA Motor Three-phase 400 W induction motor Air pressure 0.49 MPa (5.0 kgf/m Power table Shaped for use sitting or standing Machine dimensions 1,200W 1560D 860H mm (Sitting) 1,130H mm (Standing) BAS-343E...

  • Page 10: Preparation

    1. Install the Y driving shaft guard q to the rear of the arm with the bolt w and the spring washer e. 2. Install the guard r to the table rear cover t with the bolt y, spring washer u, flat washer i and nut o. BAS-343E...

  • Page 11: Positioning

    4. Stand at the front of the table and slowly raise the machine u. Then lock i it. 5. When returning the machine to its former position, re- lease lock i. The gas spring will guide the machine to its original position. BAS-343E...

  • Page 12: Connecting The Ground Wire

    9.8 N (1 kgf). To adjust, loosen the two nuts q, and shift the motor up or down. 9.8 N 10 - 12 mm 3-6. Installing the foot switch Insert the connector of the foot switch w into the connec- tor e of the control box q. BAS-343E...

  • Page 13: Installing The Spool Stand

    Install the spool stand q to the table. 3-8. Installing the programmer (option) 1. Install the programmer support w to the work table [Vertical] with the two screws q. [Flat] 2. Insert the programmer connector r securely into the left side of the operation panel e. BAS-343E...

  • Page 14: Adjustment Of Air Pressure

    The factory default setting is 0.3 MPa (3 kgf/cm Adjustment method Pull up the handle i of the air regulator u and turn it to adjust. After adjusting, push the handle i down again to lock it. NOTE Open the air cock o slowly. BAS-343E...

  • Page 15: Lubrication

    2. Fill the bed-side oil tank with oil. (Fill the oil tank with sewing machine oil.) 4. If using the liquid cooling tank q, fill it with silicon oil 3. Add a drop of oil to the shuttle hook race. (100 cs). BAS-343E...

  • Page 16: Correct Use

    • After turning the pulley by hand, be sure to press the lever down to return the pulley to the normal operating position. BAS-343E...

  • Page 17: Threading The Upper Thread

    • When threading the thread through the needle, allow a distance of approximately 40 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. BAS-343E...

  • Page 18: Winding The Lower Thread

    NOTE If the thread winds on as shown in A, turn the bob- bin winder thread tension stud w clockwise; if it winds on as shown in B, turn the bobbin winder thread tension stud w counterclockwise. case B BAS-343E...

  • Page 19: Replacing The Bobbin Case And Threading The Thread

    20 40 g Thread take-up spring height 8 - 10 mm Thread take-up spring tension 150 200 g Needle 17 #21 Normal sewing speed 2000 rpm The sewing conditions given above may vary depending on the type of material being sewn. BAS-343E...

  • Page 20: Lower Thread Tension

    Loosen screw r and turn the entire thread take-up unit Adjust the thread take-up spring tension by turning the tension stud t with a screwdriver. to adjust so that the height of the thread take-up spring is 8 - 10 mm. BAS-343E...

  • Page 21: Pretension Tension

    Adjust the thread tensions so that the total tension for the pretensions r and t is lower than the tension for the thread take -up spring. NOTE If misoperation of the thread breakage detector continues, repeat the adjustment procedure above. (Such misoperation is most likely to occur when synthetic fiber yarns are used.) BAS-343E...

  • Page 22: Panel Operation

    X-SCALE indicator ....Illuminates when X-scale mode has been selected using the menu switch y. i Y-SCALE indicator ....Illuminates when Y-scale mode has been selected using the menu switch y. o SPEED indicator..... Illuminates when speed mode has been selected using the menu switch y. BAS-343E...
  • Page 23 ! 5 TEST switch ......Used to move the feed mechanism only in order to confirm a programmed stitch pattern. ! 6 TEST indicator ....... Lights when the TEST switch is pressed. !7 STEP BACK switch ....Used when winding a fresh bobbin, or when correcting a stitch pattern due to a broken needle thread. BAS-343E...

  • Page 24: Using The Floppy Disk

    2 types (400 and 1,200 4 types (400, 600, 800 [668]L Low-speed conversion revolutions) and 1,200 revolutions) [669]L Split function during [220]L Not available Available embroidering [230]L [221]L Needle down stop for split Not available Available [231]L Expansion option output Not available Available BAS-343E...
  • Page 25 • Be sure to store your disks away from any magnets or magnetic sources, including radios, televisions, tele phones, and other devices. Magnetism can erase or damage disk contents. Also, be careful to prevent expo- sure of the disk to oil or dust. BAS-343E...

  • Page 26: Using The Program R/W (Read/Write) Switch

    2. Press the STEP BACK switch i on the operation panel (when memory switch No. 0d is ON). If memory switch No. 0d is OFF, press the EMER- GENCY STOP switch u once more to release it. BAS-343E...

  • Page 27: Using The Test Switch (Checking The Sewing Pattern)

    • If the work clamp was stopped too late, press the STEP BACK switch !7 to advance the work clamp one stitch at a time. Resuming operation from a stopping point 6. Sewing will start when the starting pedal q is pressed. BAS-343E...

  • Page 28: Using The Emergency Stop Switch

    If the sewing machine moves back too far, press the TEST switch ! 5 to move it forward again. Press the TEST switch !5 again to stop the machine. 4. After you have reached the desired position, depress the foot switch to start sewing. Foot switch BAS-343E...

  • Page 29: Adjusting The Sewing Speed Control

    X - SCALE • The scale setting is displayed as a percentage. Y - SCALE SPEED 3. The program number will flash, and after the home STEP BACK B.T. COUNTER position is detected the flashing will stop. SPLIT N . BAS-343E...

  • Page 30: Using The Bobbin Thread Counter

    (The sewing machine will not start even if the start switch is pressed.) 5. Press the bobbin thread change switch !4 and replace the bobbin. The alarm will stop, and the number of work pieces set in step 3 will be displayed again in the counter t. BAS-343E...

  • Page 31: Using Production Counter

    2. Depress the start switch to start embroidering. 3. Press the TEST switch ! 5 or the MENU switch y. The TEST indicator ! 6 will switch off and the contents of each display screen will return to the normal display. BAS-343E...

  • Page 32: Using Single Split Mode

    "1" "2" ... 4. When the starting switch is pressed, only the pattern displayed on the display screen t will be sewn. NOTE As to split sewing, refer to the instruction manual of the “electronic programmable pattern tacker programmer” BAS-343E...

  • Page 33: Shifting A Stitch Pattern

    (*1) When moving the stitch pattern, the sewing start position can be moved to any desired point within the sewing area, but if the pattern goes outside the sewing area, an error will occur during sewing and you will not be able to sew the pattern. Give consideration to the pattern as a whole when moving it. BAS-343E...

  • Page 34: Sewing

    P while the data is being read. When reading is completed, an alarm will sound and the indicator will go out, then the program R / W no. display t will blink the program number. BAS-343E...
  • Page 35 38 to between 0.1 and 2 seconds in steps of 0.1 of a second. NOTE When the power is turned on after once being turned off, the same pattern of sewing can be continued since the machine will stores the sewing data from the last time. BAS-343E...

  • Page 36: Maintenance And Inspection

    • Be sure to let the machine operate for a while after adding the oil. • Use only specified Brother oil (Nisseki Sewing Lube 10) for the machine oil. 1. Fill the arm-side oil tank with oil. 2. Fill the bed-side oil tank with oil. BAS-343E...

  • Page 37: Draining The Oil

    * If the machine is used while the air inlet port is blocked, the inside of the control box will overheat. When this happens, the overheating error code ("E- d") will be displayed and you will not be able to oper- ate the sewing machine. BAS-343E...

  • Page 38: Cleaning The Eye Guard

    Wipe the eye guard clean with a soft cloth. NOTE Do not use solvents such as kerosene thinner to clean the eye guard. 8-6. Checking the needle Always check that the tip of the needle is not broken be- fore starting sewing. BAS-343E...

  • Page 39: Standard Adjustments

    (reference line B) is aligned with the lower edge of the needle bar bush q. Then loosen the screw w and move the driver to adjust so that the tip of the rotary hook is aligned with the needle center line. BAS-343E...

  • Page 40: Adjusting The Needle Clearance

    The needle groove of the shuttle race thread guide q should be aligned with the center of the needle plate hole, and the needle center and the angled section A should be aligned. NOTE If the shuttle race thread guide is in the wrong position, thread breakages, soiled thread or catching of the thread may occur. BAS-343E...

  • Page 41: Adjusting The Movable Knife

    B on the needle plate when the machine is at the stop position. Replacing the movable and fixed knives 1. Remove screws q and w, and needle plate e. Now disconnect the thread cutter connecting rod r from stud t. BAS-343E...
  • Page 42 Repeat above steps A, B, C and D four or five times to maintain the cutting performance of the knife. Movable knife Fix knife Knives Knives Knives Knives With knives engaged 3. Install the fixed knife !0 0.5 mm away from needle hole plate ! 1 . 0.5 mm BAS-343E...

  • Page 43: Presser Foot Adjustment

    Simply press in on the pulley q to turn it by hand. To turn the pulley, press lever w down. • After turning the pulley by hand, be sure to press the lever down to return the pulley to the normal operating position. BAS-343E...

  • Page 44: Changing The Presser Foot Lift

    If vertical movement of the presser foot is not required 1. Remove the face plate ! 0 . 2. Remove the stud screw !1 and re-attach the intermitte connecting rod !2 to the upper screw hole !4 of the intermit- tent presser arm R ! 3 . BAS-343E...

  • Page 45: Wiper Adjustment

    • If the index mark is not inside the mark when be displayed (when memory switch No.14 is on).Turn the machine pulley to move the index mark to the correct position and then start the sewing machine. BAS-343E...

  • Page 46: Adjustment Of Air Pressure

    NOTE Open the air cock o slowly. 9-12. Adjusting the lubricator 1. Use the screw q to adjust the air amount. 2. Use the screw w to adjust the amount of silicone oil to be mixed with the air. BAS-343E...

  • Page 47: Checking The Input Sensor And Dip Switch Input

    4. If the settings for DIP switch B are changed at this time, the number of the changed switch will appear in the bottom row of the program number display u. BAS-343E...

  • Page 48: Checking The Input Voltage

    In such cases, carry out the following procedure to clear the memory, and also check the DIP switch settings. While pressing the R/W switch, turn on the power. This will clear all of the memory setting. R / W BAS-343E...

  • Page 49: Dip Switch

    • Various setting combinations for DIP switch No. 2, No. 3 and No. 4 can be used to change the way the work clamp is raised and lowered. • The operation mode can be changed using the two-stage work clamp switch. * For the BAS-343E, set only(A-4 to ON. BAS-343E...
  • Page 50 B - 6 Fiber-type thread breakage detector device is ON, and DIP switch A - 8 is ON (available as an option). B - 7 When using a 3-stage pedal B - 8 Feeding speed is switched to high speed. BAS-343E...

  • Page 51: Dip Switches Inside The Control Box

    C - 3 Model setting •| •| •| •| •| BAS-311E •| •| BAS-326E •| BAS-343E •| •| BAS-341E •| BAS-342E •| BAS-311EL SW No. When ON C - 4 Controlled sewing area becomes 1200 mm •~ 400 mm C - 5 For pneumatic type, set to ON when the connection has been changed so that the work clamp remains raised when the power is turned off.
  • Page 52 When the upper shaft is stopped, the motor will change direction and the needle bar will return to the D - 7 vicinity of the needle up stop position D - 8 During an emergency stop, the thread is trimmed and the needle bar stops in the raised position. BAS-343E...

  • Page 53: Changing Special Functions Using The Memory Switches

    4. Press the STEP BACK switch w to switch the setting appearing in the display screen t from OFF to ON. If pressed once more: •¡ If the B.T. CHANGE switch y is pressed at this time, all memory switch settings will be changed to OFF. 5. Press the TEST switch q. The display will return to normal. BAS-343E...
  • Page 54 ON when a two-stage tensioner is used. (Two-stage tensioner is available as an option.) memo-0b memo-0c memo-0d Clearing the emergency stop switch action is carried out using the STEP BACK switch. memo-0E Test feeding is carried out at the same speed as normal sewing. (For checking feed operation) memo-0F BAS-343E...
  • Page 55 When extended option output No. 1 is ON, the sewing machine starts automatically. memo-23 Set to ON when the bobbin changer is being used. (This part is available by special order.) memo-24 Sewing operations are carried out even if the cassette detection sensor is off. memo-25 memo-2F BAS-343E...
  • Page 56 Delay time from the point when the cassette is clamped memo-38 0.1s to the start of sewing when DIP switch A7 is ON during 1 20 automatic sewing Sets the enlargement and reduction home positions on memo-39 0 11 the panel. memo-3A memo-3b memo-3c memo-3d memo-3E BAS-343E...

  • Page 57: Error Codes

    Change the option output number. E.80 Thread breakage error detected by rotating-type Thread the upper thread. Sewing can then resume. thread breakage detector device. E.81 Upper thread breakage error detected by optical Thread the upper thread. Sewing can then resume. fiber-type sensor. BAS-343E...
  • Page 58 E.74 The bobbin is already in the changer at the Check that the bobbin is in the rotary hook rather bobbin retract position. than in the changer at the sewing start. BAS-343E...
  • Page 59 Turn off the power and check. circuit board and main circuit board. Turn off the power and contact a qualified service technician. Abnormal current detected in power supply circuit board. E.F2 REFERENCE segment LED alphabet Panel display Text display BAS-343E...

  • Page 60: Gauge Parts List According To Subclasses

    13. Gauge parts list according to subclasses 13. Gauge parts list according to subclasses The following parts are available for the BAS-343E for adding further flexibility to the range of applications. Model BAS-343E Subclass Heavy-weight materials Part name Needle hole plate...

  • Page 61: Troubleshooting

    Turn off the power Cylinder pin is not and check valve 2 working properly. manually. Sensor is not detecting Cassette is not ejected. the cassette. Check the indicator lamp status. Malfunction of foot switch BAS-343E...
  • Page 62 Replace the needle. Needle breaks. Needle is bent. Select the correct needle Needle moves about. Needle and threa for the sewing conditions. Reduce the sewing Use the correct needle Needle and thread Needle is too thin. for the material. BAS-343E...
  • Page 63 Lower thread tension Adjust the lower thread Lower thread tension is too weak. tension. tightness. Adjust the tension and Thread take-up spring Thread take-up spring height of the thread tension and height are tension and height take-up spring. incorrect. BAS-343E...
  • Page 64 Adjust the tension of the Inadequate adjustment Tension pulley position V beit using the tension of V belt tension pulley. Unstable needle up stop position Refer to the details for [E.22] Electrical trouble in the error code table. BAS-343E...

  • Page 65: Option

    •¡ 2-step thread tension device Allows the upper thread tension to be switched between two settings at any position desired by using the program- mer. * Refer to the separate Parts Book for details. BAS-343E...
  • Page 66 INSTRUCTION MANUAL BROTHER INDUSTRIES, LTD. NAGOYA, JAPAN Printed in Japan 151-V43 S93V43-002 1999.02. H (1)

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