Brother BES-1241BC Instruction Manual
  1. Manuals
  2. Brands
  3. Brother Manuals
  4. Sewing Machine
  5. BES-1241BC
  6. Instruction manual
Brother BES-1241BC Instruction Manual

Brother BES-1241BC Instruction Manual

Nine needle four head electronic embroidery machine; twelve needle four head electronic embroidery machine
Hide thumbs Also See for BES-1241BC:
Table of Contents

Advertisement

Quick Links

See also: Maintenance Manual , User Manual
BES-941
BES-1241
Please read this manual before using the machine.
Please keep this manual within easy reach for quick reference.
NINE NEEDLE FOUR HEAD ELECTRONIC EMBROIDERY MACHINE
TWELVE NEEDLE FOUR HEAD ELECTRONIC EMBROIDERY MACHINE
BC
BC
INSTRUCTION MANUAL

Advertisement

Table of Contents
loading

Related Manuals for Brother BES-1241BC

Summary of Contents for Brother BES-1241BC

  • Page 1 BES-941 INSTRUCTION MANUAL BES-1241 Please read this manual before using the machine. Please keep this manual within easy reach for quick reference. NINE NEEDLE FOUR HEAD ELECTRONIC EMBROIDERY MACHINE TWELVE NEEDLE FOUR HEAD ELECTRONIC EMBROIDERY MACHINE...
  • Page 2 Precautions • Unauthorized commercial or industrial use of trademarks or copyrighted materials (such as paintings, drawings, photos, logos, etc.) owned by other companies or persons is illegal. The use of such materials without the permission of their owners may result in criminal or civil liability. •...

  • Page 3: Safty 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".) BES-941BC • BES-1241BC...

  • Page 4: Notes On Safety

    When securing the cords, do not bend the cords excessively or fasten them too hard with staples, otherwise there is the danger that fire or electric shocks could occur. BES-941BC • BES-1241BC...

  • Page 5: Maintenance And Inspection

    Any problems in machine operation which re- • When carrying out inspection, adjustment sult from unauthorized modifications to the ma- and maintenance chine will not be covered by the warranty. • When replacing consumable parts such as the rotary hook and knife. BES-941BC • BES-1241BC...

  • Page 6: Warning Labels

    Direction of operation CAUTION Do not touch this part during activitation or for 30 minutes after shut-off. Otherwise burns may result. BES-941BC • BES-1241BC...
  • Page 7 Finger guard Belt cover BES-941BC BES-941BC • BES-1241BC...

  • Page 8: Before Starting Operation

    Use a commercially available using it to protect it from dust and cleaning disk to clean the head of damage. the floppy disk drive periodically. Do not remove the disk out of the drive during the access lamp is lit. BES-941BC • BES-1241BC...

  • Page 9: Protecting Data In Floppy Disks

    To do so, slide the write-protect notch to open the slot as shown below. Slide the notch in this direction to prevent data loss or overwriting. Slide the notch in this direction to write data. BES-941BC • BES-1241BC...

  • Page 10: Procedure Of Reading This Manual

    Explanation of models This manual explains two models: - BES-941BC (9 needles) - BES-1241BC (12 needles) Explanation for individual model is provided by identifying the model name. Check the model before using the machine. The display is BES-941BC. Configuration of this manual...
  • Page 11 List of Error Messages Provides information on error codes and action to be taken. Chapter 10 Troubleshooting Provides troubleshooting for the machine. Connection and Installation of Optional Equipment Describes connections between the machine/computer and optional equipment available. BES-941BC • BES-1241BC...

  • Page 12: Screen Composition

    Screen Composition Initial Screen Starting Sewing Selection of Embroidery data Operation ( page 72) page 59) Canceling of Sewing STOP Thread trimming Setting of Needle Bars page 92) Hoop Retract Area Check Editing of Embroidery data page 77) BES-941BC • BES-1241BC...
  • Page 13 Setting of thread breakage sensor ( page 94) Setting of Machine ( page 97) BES-941BC • BES-1241BC...

  • Page 14: Table Of Contents

    What Can the Machine Do? ..............60 Selection of Data ..................61 Registration of Embroidery Data from Floppy Disk ........... 61 Reading from Memory ..................64 Registration of Embroidery Data from BE-100 ..........65 Deletion of Embroidery Data from Machine Memory ........66 BES-941BC • BES-1241BC...
  • Page 15 Thread Withdrawal Feed Length ..............102 Inching ......................103 Sewing Area ....................104 Registration of Sewing Start Position .............. 105 Hoop Retract Point ..................105 Hoop Automatic Retract .................. 106 Movement to Registered Sewing Start Point ..........106 BES-941BC • BES-1241BC...
  • Page 16 External Tracing ................... 130 Automatic Hoop Movement in Area ............. 130 7. Jog Switches ..................131 Hoop Movement to Start Position ............131 Inching Mode during Embroidering (Forcible Hoop Movement) ..132 8. Detection of Zero Point ..............133 BES-941BC • BES-1241BC...
  • Page 17 Checking the Movable Knife Position ..........156 7. Adjusting the Belt Tension .............. 158 Chapter 9 List of Error Message Chapter 10 Troubleshooting Mechanical Section ................. 166 Electrical Section ..................168 Connection and Installation of Optional Equipment Attaching Bobbin Winder ............... 178 BES-941BC • BES-1241BC...
  • Page 18 BES-941BC • BES-1241BC...

  • Page 19: Chapter 1 Preparation Of Embroidery Machine

    Chapter 1 Preparation of Embroidery Machine...

  • Page 20: Specifications

    (Before assembly) 2750 (W) x 810 (L) x 1665 (H) mm Dimensions (After setup) 2750 (W) x 1400 (L) x 1665 (H) mm (Distance between machine heads) 400 mm Embroidery hoops in different sizes, Bobbin winder, Options Parts for boring Fluorescent lamp Option Standard BES-941BC • BES-1241BC...

  • Page 21: Names Of Machine Components

    Thread guide B Thread guide A Thread guide C Cotton stand Pulley cover Pulley Fluorescent Fluorescent lamp lamp switch Power switch Control box Head switch Thumb bolt The machine heads are numbered 1 to 4 from the right front. BES-941BC • BES-1241BC...
  • Page 22 * Other Tajima embroidery hoops that can be used with BAS-412A and 416A • Cap frame (4) Cap frame drive assembly (4) Base frame set (8) Set frame base set (1) Others F table assembly • Bobbin winder • Parts for boring BES-941BC • BES-1241BC...

  • Page 23: Installation

    Lift forks Open the forks of the lift to both sides evenly from the central seal positioned at the center (viewed from the rear of the machine), and pass them under the legs to lift the machine. BES-941BC • BES-1241BC...
  • Page 24 Place two rectangular bars on the four L-shaped steels on the bottom of the machine steel frame. Loop four ropes around the bars and lift the machine. Note) When lifting the machine, make sure that the ropes do not contact the machine table or the tension plate. BES-941BC • BES-1241BC...

  • Page 25: Installation Of Machine

    Note) If the floor is not strong enough, the embroi- dery machine may be rocked during opera- tion. In such a case, it is recommended that a secure base of concrete be placed below the embroidery machine. BES-941BC • BES-1241BC...

  • Page 26: Preparation Of Needle Bar Case

    • Never loose the bolt i of the change bracket coller r. If this bolt is loosened, the change bracket coller r will be dislocated and the position of the needle bar case w will need to be adjusted. BES-941BC • BES-1241BC...
  • Page 27 5. Attach the color change cover e by 3 pieces of fixing screw q and 2 pieces of fixing screw w. 6. Attach the linear guide cover ! 1 by 2 pieces of tightening screw ! 2 . BES-941BC • BES-1241BC...

  • Page 28: Mounting Of Table

    3. Tentatively mount five F table stoppers r on the rear legs using two bolts each. Note) • The steps 1 and 3 are required only when the F table set is purchased separately from the machine. • The F table is a standard attachment. BES-941BC • BES-1241BC...
  • Page 29 1 mm lower than the bed top surface. After adjustment is finished, tighten each bolt securely. 7. Mount a drilling bolt i, a spring washer !0 , and a flat washer !1 in section (A) of F tables R t and L u. BES-941BC • BES-1241BC...
  • Page 30 2. Insert the F table R t, M y, and L u into the upper and lower positions respectively, then check if the table can be securely fixed by the drilling bolts i. If not, shift the F table support F e to the right and left for further adjustment. BES-941BC • BES-1241BC...
  • Page 31 Dismounting can be carried out in the reverse procedures. • When the F table is at the lower position, the F table stays A and B need not be used. BES-941BC • BES-1241BC...

  • Page 32: Mounting Of Cotton Stand

    2. Mount the thread guide assembly e on the thread guide support bars w using the four screws r. Note) • When mounting, use one flat washer t below the thread guide support bar w. • Pay careful attention to the front and back directions of the thread guides (A, B, C). BES-941BC • BES-1241BC...
  • Page 33 2. Mount the thread guide assembly e on the thread guide support bars w using the four screws r. Note) • When mounting, use one flat washer t below the thread guide support bar w. • Pay careful attention to the front and back directions of the thread guides (A, B, C). BES-941BC • BES-1241BC...

  • Page 34: Lubrication To Needle Bar Case

    (See the left figure.) Note) • Use the Brother's specified embroidery ma- chine oil (Nisseki Embroidery Lube No. 10 or the equivalent). • Supplying an excessive amount of oil will cause dripping onto the material. BES-941BC BES-1241BC BES-941BC • BES-1241BC...

  • Page 35: Grounding

    3-7 Grounding Note) • When connecting the power supply, make sure to connect it to the grounding cable (with green and yellow stripes). • When plugging in the outlet, use a plug suited to the outlet. Grounding cable BES-941BC • BES-1241BC...

  • Page 36: Preparation For Embroidering

    3. Pass the thread through the upper hole of the 2nd pretension. Push up the tension disc with your finger, and place the thread under the disc. Then, pass it through the lower hole, and wind it around the thread breakage pulley twice. BES-941BC • BES-1241BC...
  • Page 37 2. Pass the thread through the upper hole of the pretension. Push up the tension disc with your finger, and place the thread under the disc. Then, pass it through the lower hole. BES-941BC • BES-1241BC...
  • Page 38 7. Bring the thread to the inner thread guide again to insert it into the hole from the upper section, then into the lower thread guide. 8. Pass the thread through the hole of the needle bar thread guide, then pass it through the needle eye, without passing it through the presser foot. BES-941BC • BES-1241BC...

  • Page 39: Replacement Of Bobbin

    4. Pull out the thread by about 50 mm. 5. The winding direction is as shown in the illustration at left. Attaching bobbin case 1. Hold the knob w and attach the bobbin case securely. 2. Close the rotary hook cover B q. BES-941BC • BES-1241BC...

  • Page 40: Replacing And Selecting Needle

    DB x K5 Shirt #11, • In general, use DBxK5 #11 ~ #18 according Towel #12, #13 to the material thickness. For knitted materials, use DBxK23 #11 because its rounded point prevents the knit thread from breaking. BES-941BC • BES-1241BC...

  • Page 41: Attachment Of Embroidery Hoop And Frame

    2. Set the right and left fixtures of the tubular square hoop t while sliding them under the flat spring y upward. Then fit the frame projecting part u into the hole of the tubular square hoop t securely. BES-941BC • BES-1241BC...
  • Page 42 Chapter 1 Preparation of Embroidery Machine • By changing the tubular round arm mounting width, various sizes can be set. Note) Change the width, referring to the pin position. 360mm 400mm BES-941BC • BES-1241BC...
  • Page 43 5. Check that the clearance between the table and the mounted holder base frame C assembly r is even when viewed from the machine front. Loosen two bolts of the F table support F y and move it in the direction of the arrow for adjust- [Adjustment] ment. BES-941BC • BES-1241BC...
  • Page 44 1. Mount the holder base mounting frame e on the X-axis feed frame q and holder base frame C w, using three clamp screws. 2. When the mounting pitch of the holder base is 370 mm, mount the holder base horizontally to the holder base mounting frames e using the thumb bolts r. BES-941BC • BES-1241BC...
  • Page 45 Chapter 1 Preparation of Embroidery Machine 3. When the mounting pitch of the holder base is 550 mm, mount the holder base vertically to the X-axis feed frame q and holder base frame C w using the thumb bolts r. BES-941BC • BES-1241BC...
  • Page 46 3. Set the material. Then, set ten sash clips 290 t horizontally on the upper and lower sides, four sash clips 220 y vertically on the left and right sides, and two sash clips 220 y horizontally on the upper and lower sides. BES-941BC • BES-1241BC...

  • Page 47: Flat Frame Every Other Head Operation

    No. 1 and No. 4. 1. Put the needle bar case at the needle bar No. 1 position and remove the presser feet for heads No. 2 and No. 3. 2. Set the frame to flat hoop every other head operation. BES-941BC • BES-1241BC...

  • Page 48: Adjustment Of Thread Tension

    1/3 of the upper stitch width. Lower thread Lower stitch width Adjustment of tension spring 6~8mm 0.07~0.12N (7~12gf) 1. The tension spring should be adjusted to 6~8 mm in height and 0.07~0.12 N (7~12 gf) in force. BES-941BC • BES-1241BC...
  • Page 49 In general, press the bobbin case to a smooth vertical surface and hang the designated number of coins. Turn the thread tension screw so that the lower thread will come out smoothly. 0.15~0.3N (15~30gf) To tighten To loosen BES-941BC • BES-1241BC...
  • Page 50 Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC...

  • Page 51: Chapter 2 Embroidering Procedures

    Chapter 2 Embroidering Procedures After installation of machine start embroider- ing. This chapter explains about the opera- tion panel on the machine as well as pre- cautions for the actual embroidering process.

  • Page 52: Functions Of Operation Panel

    Cancels errors during embroidering. Suspends embroidering. Selects sewing data. ( "Chapter 3 Selection of Data and Embroidering" page 59) Specifies a sequence of colors (sequence of needle changes) in sewing data. "Setting of Needle Bars" page 92) BES-941BC • BES-1241BC...
  • Page 53 I N S G H I J K L M N O D E L P Q R S T U V W X Y Z E N D SPACE Used for selecting data and setting functions. BES-941BC • BES-1241BC...
  • Page 54 Moves the needle bar. The needle moves by the diameter every time this switch is pressed. Change to the screen for selecting sewing data. Operation panel Contrast volume Adjusts the screen contrast. SBUS interface connector Not used (Do not connects anything.) RS-232C interface connector Connect personal computer with BE-100 installed, etc. BES-941BC • BES-1241BC...

  • Page 55: Switches At Machine Heads

    When resuming embroidering after a stop, release stop before pressing this switch. Refer to "Resetting Machine Stop" ( page 125) for details. Switches on Tension Plate THREAD SENSOR lamp HEAD switch MENDING lamp MENDING switch STEP BACK/FWD switch BES-941BC • BES-1241BC...
  • Page 56 Refer to "Adjustment of Timing Between Needle and Rotary Hook" ( page 154) for further details. If any error occurs, it can be reset. BES-941BC • BES-1241BC...

  • Page 57: Flowchart Of Preparation For Embroidering

    Retrieve the embroidery data ( page 57). "Chapter 3 Selection of Data and Embroidering" ( page 59) Edit the retrieved embroidery data. "Chapter 4 Editing of Embroidering Data" ( page 77) Press on the operation panel. Press on the operation panel. BES-941BC • BES-1241BC...

  • Page 58: Turn On The Machine Power

    A number of colors registered in data is displayed. A kind of hoop is displayed. Operational icons are basically displayed; however, some icons, such as , may not be on the screen. STOP An angle at which the hoop feeding finishes is displayed. BES-941BC • BES-1241BC...

  • Page 59: Retrieve The Embroidery Data

    Required embroidery data is selected and read. Press key. Required embroidery data is selected and read. Selected embroidery data is read. Start Embroidering Press to check the embroidering area. Press to start embroidering. Sewing is started and the next screen is displayed. BES-941BC • BES-1241BC...
  • Page 60 Chapter 2 Embroidering Procedures BES-941BC • BES-1241BC...

  • Page 61: Chapter 3 Selection Of Data And Embroidering

    Chapter 3 Selection of Data and Embroidering This Chapter describes how to select em- broidery data in order to start embroidering.

  • Page 62: What Can The Machine Do

    Step forward (back) by every 100 stitches Step forward (back) until a next color change Step forward (back) to the embroidering start point of a next pattern Step forward (back) by a specified number of stitches ( Page 74) BES-941BC • BES-1241BC...

  • Page 63: Selection Of Data

    Data with a name of [xxxx.DST] Barudan Data with a name of [xxxx.DSB] Zanks (DSK) Data with a name of [xxxx.DSZ] Data received from BE-100 Data with a name of [xxxx.STH] (These icons are displayed in the lower right of the screen.) BES-941BC • BES-1241BC...
  • Page 64 When the access lamp if ON, never press the eject switch. Otherwise, embroidery data in the floppy disk may be destroyed. Eject switch Access lamp Registration of Sewing Data into Machine Memory Load a floppy disk with sewing data. BES-941BC • BES-1241BC...
  • Page 65 . The selected data is automatically registered in the memory and the machine enters a standby status. If registration is done without loading a floppy disk, the following screen is displayed after the step 4 is finished. Load a floppy disk for data registration. BES-941BC • BES-1241BC...

  • Page 66: Reading From Memory

    When a free space is specified in the memory, a screen for reading data from the floppy disk is displayed. Refer to "Registration of Sewing Data into Machine Memory" (steps 5 and afterward on Page 63). The initial screen is displayed. BES-941BC • BES-1241BC...

  • Page 67: Registration Of Embroidery Data From Be-100

    Select the data registration screen by pressing the Select an area for data registration by pressing ten keys or , and then press the key. Press the When a floppy disk is set When no floppy disk is set BES-941BC • BES-1241BC...

  • Page 68: Deletion Of Embroidery Data From Machine Memory

    Embroidery data can be deleted from the machine memory. Press A list of registered data is displayed. Select a screen by pressing Currently displayed screen No. of screens to be selected Select embroidery data to delete by pressing ten keys or BES-941BC • BES-1241BC...
  • Page 69 When deleting embroidery data in the machine memory entirely: When deleting embroidery data registered in the machine memory entirely, turn ON the power to the machine while pressing BES-941BC • BES-1241BC...

  • Page 70: Modification Of Embroidery Data Name

    Embroidery data saved in the memory is displayed. A list of embroidery data is displayed. Select a screen by pressing Currently displayed screen No. of screens to be selected Select embroidery data to modify the name by pressing ten keys or Press BES-941BC • BES-1241BC...
  • Page 71 "T" is input. Press three times. D E F "E" is input. Press five times. P Q R S "S" is input. 10. Press twice. T U V "T" is input. 11. Press once. SPACE "0" is input. BES-941BC • BES-1241BC...
  • Page 72 15. After inputting a data name, press A data name is modified by the above procedures. When modifying only one character: [FLNWER] can be modified to [FLOWER] in the following procedures. 6. Press Press twice and display "N" reversely. Press "N" is deleted. BES-941BC • BES-1241BC...
  • Page 73 Chapter 3 Selection of Data and Embroidering Press four times. M N O "O" is input. 10. Press A data name is modified by the above procedures. BES-941BC • BES-1241BC...

  • Page 74: Sewing Operation

    Indicates a sequence of color changes. No. of current stitches Indicates a name of data currently used for sewing. Indicates the number of data currently used for sewing. Currently selected speed range The range can be modified by pressing BES-941BC • BES-1241BC...

  • Page 75: Feedhold And Cancellation Of Sewing

    Press while sewing is interrupted. When repetition of patterns is set, a pattern which is currently being sewn is canceled. When canceling all patterns, press once again. A message for confirmation is displayed. When canceling sewing, press BES-941BC • BES-1241BC...

  • Page 76: Step Forward And Step-Back

    When the number of stitches is specified, the needle steps forward (back) to an input position: Press the five times. Input the number of stitches to move by pressing ten keys. Press the The needle steps forward (back) as specified. BES-941BC • BES-1241BC...

  • Page 77: For Step Forward (Back)

    Chapter 3 Selection of Data and Embroidering The embroidery head advances (retracts) by a specified number of stitches. For Step Forward (Back) Press Stitches steps forward (back) by a specified amount. Resuming Sewing Press Sewing is started. BES-941BC • BES-1241BC...

  • Page 78: Writing The Embroidering Data

    Highlight the edit value validating or invalidating icon with designate validating or invalidating of the edit value. Set the formatted floppy disk. Press the button. E N D The selected embroidering data is stored on the floppy disk. BES-941BC • BES-1241BC...

  • Page 79: Chapter 4 Editing Of Embroidering Data

    Chapter 4 Editing of Embroidering Data Pressing on the operation panel after reading embroidering data displays the em- broidering data editing screen. Simple op- eration by using embroidering data is avail- able on this screen.

  • Page 80: What Can The Machine Do

    Vertical direction from upper left to lower right Horizontal direction from lower left to upper right Vertical direction from lower right to upper left 0 stitch deletion ( Page 86) Thread trimming feed number ( Page 87) Swing width correction ( Page 87) BES-941BC • BES-1241BC...

  • Page 81: Rotation

    By using ten keys Angle can be specified in increments of one degree. Read sewing data. Press Press to select an angle or use ten keys to specify an angle. Press E N D The initial screen is displayed again. BES-941BC • BES-1241BC...

  • Page 82: Enlargement And Reduction

    • Enlargement/reduction at different ratios in the X and Y directions Read sewing data. Press Enlargement/reduction at the same ratio in the X/Y directions Press are reversed in black. Input enlargement/reduction ratio by pressing ten keys. Press The initial screen is displayed again. BES-941BC • BES-1241BC...
  • Page 83 Input enlargement/reduction ratio in the X direction by pressing ten keys. Press is reversed in black. Input enlargement/reduction ratio in the Y direction by pressing ten keys. Press The initial screen is displayed again. BES-941BC • BES-1241BC...

  • Page 84: Mirror

    The pattern is reversed in the up/down direction on the basis of the embroidering start point. Zero point-symmetric mirror pattern The pattern is reversed on the basis of the embroidering start point. Sewing data is read. Press BES-941BC • BES-1241BC...
  • Page 85 The initial screen is displayed again. Up/Down Mirror Pattern Keep pressing until is displayed. Press The initial screen is displayed again. Zero Point-Symmetric Mirror Pattern Keep pressing until is displayed. Press E N D The initial screen is displayed again. BES-941BC • BES-1241BC...

  • Page 86: Repetition

    By setting a distance between the centers of each pattern Read sewing data. Press twice. Input the number of repetitions in the vertical and horizontal directions, by pressing ten keys. The vertical and horizontal directions are changed over by pressing BES-941BC • BES-1241BC...
  • Page 87 For setting a distance between the outer hoops of each pattern For setting a distance between the centers of each pattern Select the direction of repetitions by pressing Press The initial screen is displayed again. BES-941BC • BES-1241BC...

  • Page 88: Other Editing

    This function is previously set to 0(no swing width correction)upon shipment. Read sewing data. Press three times. 0 Stitch Deletion Select this function by pressing Press after setting is finished. E N D Press when setting continuously. BES-941BC • BES-1241BC...
  • Page 89 Correction values within -5 ~ 20 can be input. However, excessively large values may result in distortion of a pattern. Select this function by pressing Select a correction amount in the X direction by pressing Reverse by pressing Input a correction amount in the Y direction by pressing BES-941BC • BES-1241BC...
  • Page 90 Chapter 4 Editing of Embroidering Data Press after setting is finished. Press when setting continuously. BES-941BC • BES-1241BC...

  • Page 91: Chapter 5 Setting

    Chapter 5 Setting This Chapter describes how to set a sewing speed, correct trouble including thread break- age and others related to machine motions.

  • Page 92: What Can The Machine Do

    Page 101) Setting of Environment Return to start point after embroidering end ( Page 107) Method of reflecting modified machine speed ( Page 107) Method of checking the embroidery area ( Page 108) Power voltage ( Page 109) BES-941BC • BES-1241BC...

  • Page 93: Setting Of Lock Stitch

    Page 122) Hoop Retract Point Hoop retract point ( Page 105) Automatic hoop retract ON/OFF ( Page 106) Hoop Movement Registration of embroidering start point ( Page 105) Movement to registered sewing start point ( Page 106) BES-941BC • BES-1241BC...

  • Page 94: Setting Of Needle Bars

    Chapter 5 Setting Setting of Needle Bars Needle bars allocated in the sequence of sewing can be modified. This setting is explained on the basis of the BES-1241BC screen. Press Select a sewing sequence to modify by pressing The current embroidering sequence is selected while embroidering is interrupted.
  • Page 95 Insertion of Hoop Retract Press to highlight the position right next to the position to insert the hoop retract and press Press the button. E N D The changed setting is stored and the previous screen is displayed. BES-941BC • BES-1241BC...

  • Page 96: Thread Breakage Sensor

    Press twice. Select the needle bar for which the sensitivity is modified by pressing The number of needle bars changes in the sequence of : ALL (all needle bars) ... 9 or 12 (max.) Select by pressing BES-941BC • BES-1241BC...

  • Page 97: Automatic Step-Back

    Total number of stitches to step back in the automatic step-back mode When stepping back by a sensitivity amount of the thread breakage sensor When stepping back by preset number of stitches Press Modified setting is saved and the previous screen is displayed again. BES-941BC • BES-1241BC...

  • Page 98: Setting Of Lower Thread Counter/Stitch Counter

    D E L Press three times. Input the number of counts of the lower thread counter by pressing ten keys. Number of stitches Press Modified setting is saved and the initial screen or halt screen is displayed again. BES-941BC • BES-1241BC...

  • Page 99: Setting Of Machine

    All heads or every other head as currently selected Currently selected hoop Select either all heads or every other head by pressing Press E N D Modified setting is saved and the previous screen is displayed again. BES-941BC • BES-1241BC...

  • Page 100: Speed Range

    When modifying the speed range for all needle bars Input a required speed range by pressing ten keys. After modification is finished, press E N D Modified setting is saved and the previous screen is displayed again. BES-941BC • BES-1241BC...

  • Page 101: Speed Of Each Speed Range

    Upper limit of speed to be set in each range Maximum speed Lowest speed Input a required speed by pressing ten keys. After modification is finished, press E N D Modified setting is saved and the previous screen is displayed again. BES-941BC • BES-1241BC...

  • Page 102: Setting Of Mending

    (This setting is effective only once after resetting the error.) For trimming both upper and lower threads For trimming the lower thread only For not trimming any thread Refer to "Mending" ( Page 127). Press Select by pressing Press BES-941BC • BES-1241BC...
  • Page 103 The machine does not stop if the automatic step-back setting is lower than the input value. Modify this figure. After setting all items, press E N D Modified setting is saved and the initial screen is displayed again. BES-941BC • BES-1241BC...

  • Page 104: Thread Trimming Length

    Modified setting is saved and the previous screen is displayed again. Thread Withdrawal Feed Length Thread withdrawal length can be set before thread trimming. The input range is 0 ~ 100mm. This function is previously set to 15mm upon shipments. BES-941BC • BES-1241BC...

  • Page 105: Inching

    This function is previously set to selected upon shipments. Press Select by pressing Press Set whether to select the inching mode by pressing Press E N D Modified setting is saved and the previous screen is displayed again. BES-941BC • BES-1241BC...

  • Page 106: Sewing Area

    Specify coordinates of the lower right of the sewing area. Move the hoop by pressing Press E N D Pressing restores a status before modification of setting. BES-941BC • BES-1241BC...

  • Page 107: Registration Of Sewing Start Position

    Modified setting is saved and the initial screen or halt screen is displayed again. The hoop returns to the initial point. Cancellation of Setting Press once again. Modified setting is canceled and the initial screen or halt screen is displayed again. The hoop returns to the initial point. BES-941BC • BES-1241BC...

  • Page 108: Hoop Automatic Retract

    This operation should be done before starting sewing. Hold down and press S T O P The hoop moves and the zero point is detected. Then the hoop moves to a registered start point. 3. The initial screen is displayed again. BES-941BC • BES-1241BC...

  • Page 109: Setting Of Environment

    When the start point return is invalid Press E N D Modified setting is saved and the previous screen is displayed again. Speed Range For setting whether to reflect modified machine speed to all needle bars. Press twice. Select by pressing Press BES-941BC • BES-1241BC...

  • Page 110: Checking The Embroidery Area

    Checking by octagon tracing Press twice. Select with Press Press to select Press to change the settings. Checking with the rectangle Checking with the octagon Press The changed settings are stored and the previous screen is displayed. BES-941BC • BES-1241BC...

  • Page 111: Power Voltage

    Speed for transferring embroidery data between the operation panel and a personal computer with BE-100 installed. The transmission speed can be selected within the range of 9600, 19200, 38400 and 115200. (unit : bps) Press twice. Select by pressing BES-941BC • BES-1241BC...

  • Page 112: Display Language

    Modified setting is saved and the previous screen is displayed again. Display Language A language to display on the screen can be set. The following languages can be selected. Display Contents Japanese English Espanl Spanish French Press twice. Select by pressing Press BES-941BC • BES-1241BC...

  • Page 113: Alarm Sound

    A sound is generated twice. A sound is generated five times. Press twice. Select by pressing Press Select [Beep] by pressing Select a kind of sound by pressing Press Modified setting is saved and the previous screen is displayed again. BES-941BC • BES-1241BC...

  • Page 114: Motive Speed

    Press twice. Select with Press Select "Motive Speed" with Select the type of the startup speed of the main shaft with Press the button. The changed settings are stored and the previous screen is displayed. BES-941BC • BES-1241BC...

  • Page 115: Release B1 Error

    RETRY Automatically resets entanglement and restarts the operation Press twice. Select with Press Select "Release b1 err" with Select the resetting method with Press the button. The changed settings are stored and the previous screen is displayed. BES-941BC • BES-1241BC...

  • Page 116: Boring

    • Data shift valid/invalid invalid Validation/Invalidation of Boring Mode Press twice. Select by pressing Press Select by pressing Validate or invalidate the boring mode by pressing When the boring mode is valid When the boring mode is invalid BES-941BC • BES-1241BC...

  • Page 117: Lock Stitch

    Modified setting is saved and the previous screen is displayed again. Lock Stitch Lock stitch can be set at the sewing start and end positions and sewing start position after trimming thread. Setting lock stitch at the sewing start position Press twice. Select with BES-941BC • BES-1241BC...
  • Page 118 Validating the lock stitch Invalidating the lock stitch Press the button. The changed settings are stored and the previous screen is displayed. Setting the lock stitch on the sewing send position Press twice. Select with Press Select with BES-941BC • BES-1241BC...
  • Page 119 Press Select with Press to validate or invalidate the lock stitch. Validating the lock stitch Invalidating the lock stitch Press the button. E N D The changed settings are stored and the previous screen is displayed. BES-941BC • BES-1241BC...

  • Page 120: Speed Limit In A Short Pitch

    Designate the speed to be limited with Press the button. E N D The changed settings are stored and the previous screen is displayed. Invalidating speed limit in a short pitch Press the button after the setting screen is displayed. BES-941BC • BES-1241BC...

  • Page 121: Feed Timing

    The smaller values are suitable for thick material and the larger ones are suitable for thin material. The standard value is 110 degrees. Press three times. Select with Press Designate the feed end angle with Press the button. The changed settings are stored and the previous screen is displayed. BES-941BC • BES-1241BC...

  • Page 122: Display Of Information

    Coordinates of embroidering start point Coordinates of embroidering end point Number of stitches Number of colors Name of data Press three times. Select by pressing Press Check information about patterns. Press E S C The previous screen is displayed again. BES-941BC • BES-1241BC...

  • Page 123: Features Of Machine

    Maximum moving range of flat hoop (for every other head) Maximum moving range of cap hoop Number of heads Number of needle bars per head Press three times. Select by pressing Press Check information about the machine. Press The previous screen is displayed again. BES-941BC • BES-1241BC...

  • Page 124: Information About Versions

    Interface CPU ROM version Machine's bridge type Feed wave form table version Lower axis CPU ROM version Rotary hook type Machine's bridge type Main CPU ROM version Press E S C The previous screen is displayed again. BES-941BC • BES-1241BC...

  • Page 125: Chapter 6 Operation Of Machine

    Chapter 6 Operation of Machine...

  • Page 126: Operating Procedures

    ), determine a position to start embroidering. Note) An error message is displayed on the LCD if a pattern comes out of the hoop. • Pressing starts embroidering. • After embroidering is finished, the machine is placed in the stand-by state. BES-941BC • BES-1241BC...

  • Page 127: Machine Stop

    Press the power switch to turn on the power again. Emergency stop switch Power switch BES-941BC • BES-1241BC...

  • Page 128: Measures Against Thread Breakage

    To stop the machine, switch turn the switch to the opposite side. 5. Press the START switch on the operation panel or the start switch located between the machine heads to resume operation. BES-941BC • BES-1241BC...

  • Page 129: Mending

    Note) To cancel the mending end position, turn all the MENDING lamps are turned on (except for halted machine heads) . BES-941BC • BES-1241BC...
  • Page 130 Stand by position A When a thread breakage error is occurring, refer to "Setting of Mending" ( Page 100) as well in order to correct missing stitches caused by a thread breakage. BES-941BC • BES-1241BC...

  • Page 131: Jog Embroidering

    • The hoop can also be moved to the feed position automatically after embroidering is finished. Refer to "Hoop Automatic Retract" on Page 106 for details. BES-941BC • BES-1241BC...

  • Page 132: Area Check

    Embroidering area If the pattern is not held in the embroidering area as shown below, the hoop cannot move into the area. Enlarge the embroidering area on the operation panel. BES-941BC • BES-1241BC...

  • Page 133: Jog Switches

    Chapter 6 Operation of Machine 7. Jog Switches 7-1 Hoop Movement to Start Position The hoop can be moved before starting embroidering and the start position can be set arbitrarily. BES-941BC • BES-1241BC...

  • Page 134: Inching Mode During Embroidering (Forcible Hoop Movement)

    • If the hoop and material are deviated from each other during embroidering, correct it by using the jog switches. 3. Pressing the "END" switch resets the inching mode. 4. Press the "START" switch restarts embroidering. BES-941BC • BES-1241BC...

  • Page 135: Detection Of Zero Point

    After the zero point is detected, the hoop returns to the initial point Press while pressing with the machine stopped. S T O P SPACE Initial screen Temporary stop screen The hoop moves and the zero point is detected. The initial screen is displayed again. BES-941BC • BES-1241BC...
  • Page 136 Chapter 6 Operation of Machine BES-941BC • BES-1241BC...

  • Page 137: Chapter 7 Maintenance

    Chapter 7 Maintenance...

  • Page 138: Cleaning Rotary Hook

    Remove dirt with a soft, dry cloth. If necessary, clean with the detergent-soaked cloth, then wipe off the detergent with a cloth dampened with (hot) water. • Caution Never use benzene or thinner for cleaning the machine. 1. Cleaning Rotary Hook BES-941BC • BES-1241BC...

  • Page 139: Oiling

    • Excessive oiling may cause the material to be stained. 2-1 Head BES-941BC Supply oil to the needle bars (18 positions) once a day as shown on the left. BES-1241BC Supply oil to the needle bars (24 positions) once a day as shown on the left. BES-941BC • BES-1241BC...
  • Page 140 (Note) • In lubrication, select needle bar 12 and remove the head cover to check the lubrication area. Be sure to wipe off excessive oil spilt at the lower part of the arm. Thread take-up bush Connecting rod Connecting Head cover BES-941BC • BES-1241BC...

  • Page 141: Greasing

    !0 behind the cover o at right. Check that it is engaged, and then tighten the bolts. • When attaching the presser foot guide plate r, move the presser foot up and down by the retracting lever to check that is it not distorted. BES-941BC • BES-1241BC...
  • Page 142 Check that it is engaged, and then tighten the bolts. • When attaching the presser foot guide plate i, move the presser foot up and down by the retracting lever to check that is it not distorted. BES-941BC • BES-1241BC...
  • Page 143 • When attaching the presser foot guide plate r, move the presser foot up and down by the retracting lever to check that is it not distorted. For more information, refer to the illustra- tion in step 6 on page 139. BES-941BC • BES-1241BC...
  • Page 144 • When attaching the presser foot guide plate i, move the presser foot up and down by the retracting lever to check that is it not distorted. For more information, refer to the illustra- tion in step 6 on page 140. BES-941BC • BES-1241BC...

  • Page 145: Feed Guide Section

    4. Grease the X-feed linear guides (3 positions), the Y-feed linear guides (one each on the right and left), and the linear guide inside the No. 3 bed. Slide the guide to spread grease entirely. 5. After greasing, assemble in the reverse order. BES-941BC • BES-1241BC...

  • Page 146: Lower Shaft Module

    (Note) Be careful not to get any grease on the PCB or the encoder. Section to which grease is applied 6. Turn the needle gap adjusting screw to let Coupling hub F grease conform to the coil springs. BES-941BC • BES-1241BC...
  • Page 147 9. Install the lower shaft's case cover and secure it with polyester tape. * Use heatproof tape to secure it if polyester tape is not available. 10. Reassemble the module by reversing this procedure. 11. Carry out the thread trimming test for checking. BES-941BC • BES-1241BC...
  • Page 148 Chapter 7 Maintenance BES-941BC • BES-1241BC...

  • Page 149: Chapter 8 Standard Adjustment

    Chapter 8 Standard Adjustment...

  • Page 150: Adjusting Needle Bar Height

    Maintenance and inspection of the machine sulting in bodily injuries. should be conducted only by trained engineers. • Adjustment 1. Adjusting Needle Bar Height 10.8mm Tighten the screw u so that the clearance can be even. Do not hit this section. BES-941BC • BES-1241BC...
  • Page 151 • When tightening the upper dead point stopper bolt u, insert the longer side of the attached wrench into the bolt and tighten it by using the shorter side. Excessive tightening may make the needle bar movement sluggish. BES-941BC • BES-1241BC...
  • Page 152 Chapter 8 Standard Adjustment When using the bottom dead center gauge Cutting section 10.8mm Cutting section Tighten the bolt o so that the clearance can be even. Do not hit this section. BES-941BC • BES-1241BC...
  • Page 153 • When tightening the upper dead point stopper bolt o, insert the longer side of the attached wrench into the bolt and tighten it by using the shorter side. Excessive tightening may make the needle bar movement sluggish. BES-941BC • BES-1241BC...

  • Page 154: Replacing (Attaching) Rotary Hook

    3. When mounting, press it inward until it stops. Note) After replacing rotary hooks, refer to "4. Ad- justment of Timing Between Needle and Ro- tary Hook (Page 154)" and adjust the timing. Cutting section BES-941BC • BES-1241BC...

  • Page 155: Adjustment Of Clearance Between Needle And Rotary Hook

    1. Turn the power switch off. 2. Select the needle bar No. 1 q. The illustration at the left shows the case of BES- 941BC. For BES-1241BC, the No. 12 needle becomes 3. Remove two flat screws w and dismount the needle plate e.

  • Page 156: Adjustment Of Timing Between Needle And Rotary Hook

    • STEP FWD For rotating the rotary hook little by little in the counterclockwise direction Make this adjustment for each machine head so that the needle and the rotary hook's point can fit with each other. BES-941BC • BES-1241BC...

  • Page 157: Adjustment Of Presser Foot Height

    3. Loosen the screw w of the presser foot q, and adjust the presser foot q until it comes above the cloth top surface when it is at the alignment position (where the pulley B indication mark " " and the cover indication mark " " are aligned). BES-941BC • BES-1241BC...

  • Page 158: Adjustment Of Thread Trimmer

    4. Tighten the two bolts e until the triangle part of the movable knife r is projected by 1 mm from the fixed knife t. * Precautions for tightening the two bolts e: Triangle part of movable knife BES-941BC • BES-1241BC...
  • Page 159 6. Turn the power switch off once, then on again. Check that the clearance between the movable knife r and the fixed knife t is 1 mm. 7. When adjusting again, follow the step 2 and after. BES-941BC • BES-1241BC...

  • Page 160: Adjusting The Belt Tension

    8 mm of deflection in the belt q when 9.8 N (1 kgf) of pressure is applied. The machine operating direction is counterclockwise when seen from the machine pulley end. BES-941BC • BES-1241BC...

  • Page 161: Chapter 9 List Of Error Message

    Chapter 9 List of Error Messages...

  • Page 162: Chapter 9 List Of Error Message

    F/B switch on the head to ei- Presser foot down error while searching for STOP E-1F Presser foot down error ther side. If the same error occurs again, adjust the home position just after the power is turned on. presser foot switch. BES-941BC • BES-1241BC...

  • Page 163: Chapter 9 List Of Error Message

    Spindle motor voltage too high high This is not usually displayed. E-A5 ERROR A5 Spindle motor CPU error Main shaft motor CPU communication com- E-A6 ERROR A6 mand error E-A7 ERROR A7 Main shaft motor CPU send/receive error BES-941BC • BES-1241BC...

  • Page 164: Chapter 9 List Of Error Message

    Readjust it. Rated voltage value could not be received from Turn the power off and on once. If the same error occurs E-CF ERROR CF the lower shaft motor CPU. again, the main PCB is faulty. BES-941BC • BES-1241BC...

  • Page 165: Chapter 9 List Of Error Message

    E-F9 ERROR F9 No applicable command E-FA ERROR FA Interface receive data sum check error E-FB ERROR FB Send time up error No status is returned from main shaft, lower E-FF ERROR FF shaft motor, or CPU. BES-941BC • BES-1241BC...

  • Page 166: Chapter 9 List Of Error Message

    Chapter 9 List of Error Messages BES-941BC • BES-1241BC...

  • Page 167: Chapter 10 Troubleshooting

    Chapter 10 Troubleshooting If there is any indication of trouble with the machine, check and correct as described in the table. If the trouble cannot be corrected, turn off the power and contact your distribu- tor for corrective actions.

  • Page 168: Mechanical Section

    • Is any set screw of the rotary encoder loosened? • Is any set screw of the machine pulley loosened? • Is any set screw of the machine motor pulley loosened? • Is embroidery data normal? • Is the XY carriage belt loosened? BES-941BC • BES-1241BC...
  • Page 169 • Is the presser foot lifted at a retract position when the power is turned on? Lower the presser foot for the four machine heads using the lever. Stitches cannot be made. • Is the needle attached properly? • Is the timing of the needle and rotary hook correct? BES-941BC • BES-1241BC...

  • Page 170: Electrical Section

    • Check the signal of the stop position sensor in the encoder test mode. Refer to the adjustment or cable connection block diagram and check connection from the needle position detention sensor to the main PCB. Replace the needle position detection sensor with a new one. BES-941BC • BES-1241BC...
  • Page 171 If not, check to see if connection from the needle bar position sensor to connector P7 of the head PCB (1) is proper. • Replace the needle bar position sensor (potentiometer) with a new one. • Replace the head PCB 1 with a new one. BES-941BC • BES-1241BC...
  • Page 172 If the signal does not change, refer to the cable connection block diagram and check to see if connection from the stop position sensor to the main PCB is proper. BES-941BC • BES-1241BC...
  • Page 173 • Is the hole next to the bed with which the error frequently occurs clogged with dust? If so, clean it. • Check to see if connection from the thermister of the lower shaft module to the BC PCB is proper. BES-941BC • BES-1241BC...
  • Page 174 • Enter the solenoid test mode and check the displayed value on the panel. If it is not S-00, check to see if connection from the wiper sensor to the head PCB is proper. Replace the wiper sensor with a new one. Replace the head PCB with a new one. BES-941BC • BES-1241BC...
  • Page 175 18v terminal of the power transformer are proper. • Check fuse F3 on the power supply PCB in the power supply base. If it is blown, replace it with a new one. If it becomes blown again, the 24v system circuit is faulty. BES-941BC • BES-1241BC...
  • Page 176 Replace the faulty motor with a new one. • Refer to the block diagram showing the cable connection and check to see if connection from the X-axis motor to the main PCB is proper. • Replace the main PCB with a new one. BES-941BC • BES-1241BC...
  • Page 177 P12 of the head PCB to connectors P7, 8, 13, 14, 15, and 16 on the power supply PCB in the control box is proper. • Replace the head PCB with a new one. BES-941BC • BES-1241BC...
  • Page 178 The above operation will prohibit operation of the lower shaft connected to the faulty lower shaft PCB or the faulty lower shaft module and cause the corresponding heads to pause. This is reset when the power of the machine is turned on again. Start from the step 3 to prohibit the operation again. BES-941BC • BES-1241BC...

  • Page 179: Connection And Installation Of Optional Equipment

    Connection and Installation of Optional Equipment...

  • Page 180: Attaching Bobbin Winder

    4. Mount the spool shaft B t and pan y, spool mat u, and spool cushion i with nut 5 !5 and spring washer !6 . 5. Insert the thread winder harness o in the 2P (No. 6) connectors on the rear of the control box. BES-941BC • BES-1241BC...
  • Page 181 • If the circuit protector o functions, the bob- bin winder motor does not rotate. Leave it for a while for cooling. Then press the cir- cuit protector o. (The thread does not come out when the motor is not cooled enough.) BES-941BC • BES-1241BC...
  • Page 182 INSTRUCTION MANUAL BROTHER INDUSTRIES,LTD. NAGOYA,JAPAN Printed in Japan 155-941, C41 S93941-002 1999.09. H (1)

This manual is also suitable for:

Bes-941bc

Table of Contents