Brother BES-941BC manual

INSTRUCTION MANUAL 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 BES-941 BC BES-1241 BC[...]

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. • This manual may be subsequently modified w[...]

1 BES-941BC • BES-1241BC Thank you very much for buying a BROTHER sewing machine. Before using your new machine, please read the safety instructions below and the explanations given in the instruction manual. With industrial sewing machines, it is normal to carry out work while positioned directly in front of moving parts such as the needle and t[...]

2 BES-941BC • BES-1241BC The ambient temperature should be within the range of 5 ° C to 35 ° C during use. Temperatures which are lower or higher than this may cause problems with correct operation. The relative humidity should be within the range of 45% to 85% during use, and no dew forma- tion should occur in any devices. Excessively dry or h[...]

3 BES-941BC • BES-1241BC Be sure to wear protective goggles and gloves when handling the lubricating oil or grease, so that no oil or grease gets into your eyes or onto your skin, otherwise inflammation can result. Furthermore, do not drink the oil or grease un- der any circumstances, as they can cause vom- iting and diarrhoea. Keep the oil out o[...]

4 BES-941BC • BES-1241BC 3 Warning labels * The following warning labels appear on the sewing machine. Please follow the instructions on the labels at all times when using the machine. If the labels have been removed or are difficult to read, please contact your nearest Brother dealer. 1 CAUTION Operate with safety devices. turn off main switch b[...]

5 BES-941BC • BES-1241BC 2 1 7 1 6 3 4 5 7 3 2 Belt cover Finger guard BES-941BC[...]

6 BES-941BC • BES-1241BC Before Starting Operation Do not remove the disk out of the drive during the access lamp is lit. Do not force open the shutter for direct contact with the magnetic area. Do not store floppy disks in an extremely high or low ambient temperature. Do not use or store floppy disks in a dusty place. Do not place it on cloth. D[...]

7 BES-941BC • BES-1241BC Slide the notch in this direction to prevent data loss or overwriting. Slide the notch in this direction to write data. Protecting data in floppy disks Write-protection is available for a floppy disk to prevent undesired data deletion. A write-protected disk is read-only. It is recommended to provide write-protection for [...]

8 BES-941BC • BES-1241BC 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 This manual [...]

9 BES-941BC • BES-1241BC Chapter 9 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.[...]

10 BES-941BC • BES-1241BC Screen Composition Initial Screen Starting Sewing Selection of Embroidery data Operation ( page 72) ( page 59) STOP Canceling of Sewing Thread trimming Setting of Needle Bars ( page 92) Hoop Retract Area Check Editing of Embroidery data ( page 77)[...]

11 BES-941BC • BES-1241BC Setting of thread breakage sensor ( page 94) Setting of Machine ( page 97)[...]

12 BES-941BC • BES-1241BC Contents SAFTY INSTRUCTIONS ............................................................................... 1 Before Starting Operation .......................................................................... 6 Procedure of Reading This Manual ........................................................... 8 Screen Composi[...]

13 BES-941BC • BES-1241BC Modification of Embroidery Data Name .................................................. 68 Sewing Operation ...................................................................................... 72 Before Starting Sewing ..................................................................................... 72 Starting Sew[...]

14 BES-941BC • BES-1241BC Setting of Environment ........................................................................... 107 Return to Start Point ........................................................................................ 107 Speed Range ............................................................................................[...]

15 BES-941BC • BES-1241BC Chapter 7 Maintenance 1. Cleaning Rotary Hook ...................................................................... 136 2. Oiling .................................................................................................. 137 2-1 Head ...............................................................................[...]

16 BES-941BC • BES-1241BC[...]

Chapter 1 Preparation of Embroidery Machine[...]

Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC 18 Embroidery machine used 9 needle embroidery machine head 12 needle embroidery machine head (four-head type) (four-head type) Application Pattern embroidery Sewing speed Maximum 1000 rpm 450 (V) x 400 (H) mm (border frame area) Sewing area 430 (V) x 300 (H) mm (tubular square ho[...]

Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC 19 Thread tension switch Thread guide B Thread guide C Thread guide A Cotton stand F table Head switch Leg Thumb bolt Control box Operation panel Pulley Power switch Thread tension dial Cotton stand Thread guide A Thread tension switch Thread guide B Thread guide C Thread tension [...]

Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC 20 Embroidery hoop • Tubular square hoop 30 x 43 (4) • Holder base 30 x 43 (4) • Tubular round arm set R (4) Other embroidery hoops in different sizes • Tubular round arm set L (4) • Sash frame assembly * Other Tajima embroidery hoops that can be used with BAS-412A and 4[...]

Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC 21 a a Center pillar Lift forks The central seal Embroidery machines should be installed only by trained engineers. Electric wiring should be laid by your distribu- tor or electric experts. A machine weighs more than 600 kg. Installa- tion should be carried out by 4 or more work- [...]

Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC 22 When using a crane 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 pla[...]

Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC 23 3-2 Installation of Machine 1. Place the attached cushion sheets w and leveling plates e under the four level adjusters q . The leveling plates e should be placed above the cushion sheets respectively. 2. Secure the four level adjusters q on the ground using the nuts r so that [...]

Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC 24 3-3 Preparation of Needle Bar Case BES-941BC 1. Loosen the bolt q and set screw o , and move the needle case w to the left. 2. Press the change bracket collar r against the change case base e on the light, while pressing the change bracket collar t against the change case base [...]

Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC 25 BES-1241BC 1. Remove 3 pieces of fixing screw q , loosen 2 pieces of screw w and remove the color change cover e . 2. Remove the bolts r and detach the fixing bracket for transportation from the bridge and the connecting shaft. 3. Loosen the bolts t and set screw !0 , and move [...]

Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC 26 3-4 Mounting of Table Mounting of F table 1. Tentatively mount the F table guides U q and L w on both sides of the legs using two bolts each. 2. Tentatively mount there F table supports F e on the leg front using two bolts each. 3. Tentatively mount five F table stoppers r on t[...]

Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC 27 4. Mount four drilling bolts i , spring washers !0 , flat washaers !1 each on the rear of F table R t , M y , and L u . 5. Mount four thumb bolts on the steel pipe below the front leg. 6. Insert the pins attached to the rear of the F table R t , M y , and L u into the cover o o[...]

Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC 28 1. Dismount the F table R t , M y , and L u once, and lower the F table support F e . Then, place the F table R t , M y , and L u on the F table guide L w bending section. Fix the F table support F e at this height and insert the pins on the rear of the F table R t , M y , and [...]

Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC 29 3. Fix the legs and the table using the F table stays A (2 pcs.) o and B (2 pcs.) !0 while the F table R t , M y , and L u are fixed at the upper position. * Dismounting can be carried out in the reverse procedures. Note) • Use two F table stays (B) with one notch at both end[...]

Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC 30 3-5 Mounting of Cotton Stand BES-941BC 1. Attach four thread guide support bars w to the cotton stand assembly q , while fitting into the four holes. 2. Mount the thread guide assembly e on the thread guide support bars w using the four screws r . Note) • When mounting, use o[...]

Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC 31 1. Attach four thread guide support bars w to the cotton stand assembly q , while fitting into the four holes. 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[...]

Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC 32 CAUTION 3-6 Lubrication to Needle Bar Case Proper lubrication is necessary for keeping the machine head in good condition. Turn off the power switch before starting any cleaning work, otherwise the machine may operate if the start switch is pressed by mistake, which could resul[...]

Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC 33 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[...]

Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC 34 4. Preparation for Embroidering Turn off the power switch before starting preparation. Failure to do so may start the machine unintentionally through an accidental activation of the START switch, resulting in bodily injuries. CAUTION 4-1 Upper Threading BES-941BC 1. Pass the up[...]

Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC 35 BES-1241BC 4. Pass the thread through the hole of the upper thread guide (U), wind it into the tension disk clockwise once, and place it on the spring. 5. Pass the thread through each hole of the upper thread guide (U) and the thread guide (C). 6. After passing the thread throu[...]

Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC 36 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. 4. Pass the thread through the hole of the[...]

Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC 37 w w q q e 4-2 Replacement of Bobbin Note) Remove dust, lint and oil from the bobbin case before replacement. Removing bobbin case 1. Open the rotary hook cover B q . 2. Hold the knob w and take out the bobbin case. 3. Close the knob and take out the bobbin e . Replacing bobbin [...]

Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC 38 q w 4-3 Replacing and Selecting Needle Removing needle Loosen the set screw q and remove the needle q . Attaching needle With the flat side facing the front, insert the needle all the way until it meets the end of the needle bar. Tighten the set screw q firmly. Note) • Set th[...]

Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC 39 4-4 Attachment of Embroidery Hoop and Frame Tubular square hoop w q r e y u t 1. Insert the fixing pins of the tubular round arms R q and L w into the notches of the X-axis feed frame e . Slide the arm to the right and left and lower the fixing lever r to fix them. 2. Set the r[...]

Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC 40 • By changing the tubular round arm mounting width, various sizes can be set. Note) Change the width, referring to the pin position. 360mm 400mm[...]

Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC 41 Holder base (optional) Attaching the holder base frame 1. Set the table. (Refer to "3-4 Mounting of Table" (Page 26) for details.) 2. Mount the frame connecting plate R w on the X-axis feed frame q , using six bolts, washers, and nuts. 3. Insert the frame connecting p[...]

Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC 42 6. Check that the clearance between the Y-axis cover u and the mounted holder base frames L e and R t is even when viewed from the right and left sides. [Adjustment] Loosen the right and left bolts of the F table guide U i and move it in the direction of arrow for adjustment. 7[...]

Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC 43 r q r w 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 .[...]

Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC 44 Sash frame (optional) Attaching the sash frame 1. Set the table. (Refer to "3-4 Mounting of Table" (Page 26) for details.) 2. Mount two vertical sash frames q on the holder base frames L and R, and two horizontal sash frames w on the X-axis feed frame e and the holder[...]

Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC 45 4-5 Flat Frame Every Other Head Operation When sewing with the flat frame, the sewing range becomes 460 mm maximum in the X direction by conducting every other head operation only for No. 1 and No. 4. 1. Put the needle bar case at the needle bar No. 1 position and remove the pr[...]

Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC 46 4-6 Adjustment of Thread Tension 0.7~1.3N (70~130gf) Adjustment of upper thread Adjust upper thread tension to 0.7~1.3N (70~130 gf) when the thread is pulled at the needle bar thread guide. * Correct adjustment Turn the upper thread tension dial so that the needle thread can be[...]

Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC 47 To loosen To tighten 0.15~0.3N (15~30gf) 2. For adjusting the height, loosen the screw q and turn the tension spring bracket w . 3. For adjusting the tension spring force, insert a driver tip in the groove of the thread tension bar e and turn it. Lower thread tension The standa[...]

Chapter 1 Preparation of Embroidery Machine BES-941BC • BES-1241BC 48[...]

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.[...]

BES-941BC • BES-1241BC 50 Chapter 2 Embroidering Procedures Functions of Operation Panel Operation Panel 0 1 2 4 5 3 6 7 8 9 HOOP FLAT CAP START ESC ESC END END INS DEL DEL A B C D E F J K L G H I M N O T U V . P Q R S SPACE W X Y Z STOP BES-1241BC Starts embroidering. Restarts after moving the carriage to embroidering start position by using the[...]

BES-941BC • BES-1241BC 51 Chapter 2 Embroidering Procedures Edits sewing data. ( "Chapter 4 Editing of Embroidering Data" page 77) Sets the upper thread breakage sensor. ( "Thread Breakage Sensor" page 94) Machine motions can be set. ( "Chapter 5 Setting" page 89) Trims thread during suspension. Moves the hoop to a p[...]

BES-941BC • BES-1241BC 52 Chapter 2 Embroidering Procedures HOOP FLAT CAP Selects the flat or cap hoop. This selection should be done before turning the power ON to the machine. The setting will not be changed if the selection is done after turning the power OFF. Moves the hoop. Step-back or forward is available during suspension. (Use switches o[...]

BES-941BC • BES-1241BC 53 Chapter 2 Embroidering Procedures Switches at Machine Heads BES-941BC BES-1241BC Between head No. 1 and No. 2 Between head No. 3 and No. 4 Between head No. 2 and No. 3 Stop switch Stops embroidering operation. "Release stop SW to operate!" is displayed on the screen as soon as the machine stops. Refer to "[...]

BES-941BC • BES-1241BC 54 Chapter 2 Embroidering Procedures THREAD SENSOR lamp When red light is on, thread breakage sensor is functioning. When the light is off, the sensor is not effective. When the embroidery machine stops due to thread breakage, the lamp flashes. HEAD switch When it is set to ON, needle bar on the head moves for embroidering.[...]

BES-941BC • BES-1241BC 55 Chapter 2 Embroidering Procedures Flowchart of Preparation for Embroidering Turn on the machine power. ( page 56). Retrieve the embroidery data ( page 57). Press on the operation panel. Press on the operation panel. "Chapter 3 Selection of Data and Embroidering" ( page 59) "Chapter 4 Editing of Embroiderin[...]

BES-941BC • BES-1241BC 56 Chapter 2 Embroidering Procedures Turn on the Machine Power 1. Turn on the power to the machine. 2. A message is displayed on the LCD as soon as the power is turned ON. 3. The alarm sounds three times. The needle bar and the presser foot move up. The hoop moves back to the zero point and the sewing screen is displayed. B[...]

BES-941BC • BES-1241BC 57 Chapter 2 Embroidering Procedures Retrieve the Embroidery Data The description in this section is based on the method of reading data which is registered in the memory unit of the machine. Refer to "Selection of Data" ( Page 61) for details. 1. Press switch. Data saved in the machine is displayed. 2. Select a s[...]

BES-941BC • BES-1241BC 58 Chapter 2 Embroidering Procedures[...]

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

BES-941BC • BES-1241BC 60 Chapter 3 Selection of Data and Embroidering What Can the Machine Do? Selection of Embroidery Data Registration of data from the floppy disk ( Page 61) Reading of data from the memory ( Page 64) Registration of data created by BE-100 ( Page 65) (These icons are displayed in the lower right of the screen.) Modification of[...]

BES-941BC • BES-1241BC 61 Chapter 3 Selection of Data and Embroidering Selection of Data Select data in order to start sewing. Data to use for actual embroidering is selected from data registered in the machine memory. A maximum of 45 kinds or 480,000 stitches of embroidery data can be registered in the machine memory; however, depending on the c[...]

BES-941BC • BES-1241BC 62 Chapter 3 Selection of Data and Embroidering • Other data Data format Icon Barudan FDR Barudan FMC Zanks ZSK (These icons are displayed in the lower right of the screen.) Loading and Loading of Floppy Disk 1. When loading a floppy disk, set it straight with the labeled surface facing this side. 2. When unloading a flop[...]

BES-941BC • BES-1241BC 63 Chapter 3 Selection of Data and Embroidering 2. Press . 3. Select a screen for data registration by pressing . When there is no data 4. Select an area for registration, using ten keys or , then press . A space available is automatically selected. Pressing automatically locates the first space in the memory. 5. Data in th[...]

BES-941BC • BES-1241BC 64 Chapter 3 Selection of Data and Embroidering Reading from Memory Data to use for sewing can be selected from the machine memory. A maximum 45 kinds or 480,000 stitches of embroidery data can be registered in the memory. 1. Press . Embroidery data registered in the memory is displayed. 2. Select a screen by pressing . 3. [...]

BES-941BC • BES-1241BC 65 Chapter 3 Selection of Data and Embroidering Registration of Embroidery Data from BE-100 Connect the operation panel and the personal computer with BE-100 installed in order to register the embroidery data into the machine memory. 1. Connect the personal computer with BE-100 installed and the operation panel by means of [...]

BES-941BC • BES-1241BC 66 Chapter 3 Selection of Data and Embroidering 6. Press the . 7. The BE-100 embroidery data is displayed. Press the and select a required screen. 8. Select embroidery data to register by pressing ten keys or , and then press the key. The data is registered in the machine memory. Deletion of Embroidery Data from Machine Mem[...]

BES-941BC • BES-1241BC 67 Chapter 3 Selection of Data and Embroidering 4. When DEL is pressed, the confirmation message is displayed. 5. When key is pressed, selected embroidery data is deleted from the memory. When deleting embroidery data in the machine memory entirely: When deleting embroidery data registered in the machine memory entirely, tu[...]

BES-941BC • BES-1241BC 68 Chapter 3 Selection of Data and Embroidering Modification of Embroidery Data Name Name of embroidery data registered in the machine memory can be modified. This example shows how to modify the data name "FLOWER" to "TEST003". A maximum number of characters to use for an embroidery data name is 8. The [...]

BES-941BC • BES-1241BC 69 Chapter 3 Selection of Data and Embroidering When selected data has a pattern name, the name is displayed. Press the key once again. 5. Input a new data name by pressing ten keys. When modifying embroidery data names entirely 6. Pressing DEL DEL deletes currently reversed characters. 7. Press 8 T U V twice. "T"[...]

BES-941BC • BES-1241BC 70 Chapter 3 Selection of Data and Embroidering 12. Press . When inputting the same character continuously, press the to move the cursor to the right. 13. Press 0 SPACE once. "0" is input. 14. Press 3 D E F once. "3" is input. 15. After inputting a data name, press . A data name is modified by the above [...]

BES-941BC • BES-1241BC 71 Chapter 3 Selection of Data and Embroidering 9. Press 6 M N O four times. "O" is input. 10. Press . A data name is modified by the above procedures.[...]

BES-941BC • BES-1241BC 72 Chapter 3 Selection of Data and Embroidering Sewing Operation Before Starting Sewing Select a hoop to set on the machine. The following operation should be done before turning the power ON to the machine. Otherwise, it will damage the hoop. 1. Select either the flat hoop or cap hoop, using FLAT or CAP switch on the opera[...]

BES-941BC • BES-1241BC 73 Chapter 3 Selection of Data and Embroidering Feedhold and Cancellation of Sewing Feedhold 1. Press STOP . Sewing is interrupted. Cancellation 1. Press ESC while sewing is interrupted. When repetition of patterns is set, a pattern which is currently being sewn is canceled. When canceling all patterns, press ESC once again[...]

BES-941BC • BES-1241BC 74 Chapter 3 Selection of Data and Embroidering Step Forward and Step-Back Stitches can be advanced (step forward) or retracted (step-back) without sewing. Step Forward/Step-Back Mode 1. Press when selecting either mode before starting sewing and press STOP when selecting a mode during sewing. Setting Amount or Timing of St[...]

BES-941BC • BES-1241BC 75 Chapter 3 Selection of Data and Embroidering 4 . The embroidery head advances (retracts) by a specified number of stitches. For Step Forward (Back) 1. Press . Stitches steps forward (back) by a specified amount. Resuming Sewing 1. Press . Sewing is started.[...]

BES-941BC • BES-1241BC 76 Chapter 3 Selection of Data and Embroidering Writing the embroidering data The embroidering data stored in the memory of the machine is written to the floppy disk. The format of the data to be written is brother ESC or TAJIMA TFD. 1. Press the button. The embroidering data stored in the memory is displayed. 2. The list o[...]

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.[...]

BES-941BC • BES-1241BC 78 Chapter 4 Editing of Embroidering Data What Can the Machine Do? Editing Enlargement/reduction is executed ahead of rotation. When an embroidery pattern is so set to be rotated by 90˚ and then enlarged by 2 times in the X-axis direction, the X-axis enlargement is executed first and rotation by 90˚ is executed afterwards[...]

BES-941BC • BES-1241BC 79 Chapter 4 Editing of Embroidering Data Rotation A pattern can be rotated. A maximum range of rotation is 1 ~ 359 degrees. The rotating direction is counterclockwise. Rotating angle can be set in either of the following. By using Angle can be specified in increments of 90˚. Setting of 90˚,180˚ or 270˚ is available. By[...]

BES-941BC • BES-1241BC 80 Chapter 4 Editing of Embroidering Data Enlargement and Reduction A pattern can be enlarged or reduced. The enlargement and reduction ratio is 50 ~ 200%. The number of stitches does not change even by enlargement or reduction of a pattern. However, stitches may become too rough or close if enlargement or reduction is exce[...]

BES-941BC • BES-1241BC 81 Chapter 4 Editing of Embroidering Data Enlargement/reduction at different ratios in the X/Y directions 3. Press twice. is reversed in black. 4. Input enlargement/reduction ratio in the X direction by pressing ten keys. 5. Press . is reversed in black. 6. Input enlargement/reduction ratio in the Y direction by pressing te[...]

BES-941BC • BES-1241BC 82 Chapter 4 Editing of Embroidering Data Mirror A pattern can be reversed as if it is reflected in the mirror. Up/down mirror pattern Right/left mirror pattern Zero point-symmetric mirror pattern. Right/left mirror pattern The pattern is reversed in the right/left direction on the basis of the embroidering start point. Up/[...]

BES-941BC • BES-1241BC 83 Chapter 4 Editing of Embroidering Data Right/Left Mirror Pattern 3. Keep pressing until is displayed. 4. Press END . The initial screen is displayed again. Up/Down Mirror Pattern 3. Keep pressing until is displayed. 4. Press END . The initial screen is displayed again. Zero Point-Symmetric Mirror Pattern 3. Keep pressing[...]

BES-941BC • BES-1241BC 84 Chapter 4 Editing of Embroidering Data Repetition A pattern is repeatedly copied as many times as specified. The number of repetitions is 1 ~ 99 in both the vertical (row) and horizontal (line) directions. There are the following eight directions of repetitions. Horizontal direction from upper left to lower right Vertica[...]

BES-941BC • BES-1241BC 85 Chapter 4 Editing of Embroidering Data 4. Press . 5. Input intervals between repetitions by pressing ten keys. The vertical and horizontal directions are changed over by pressing . Press for setting a distance between the centers of each pattern. For setting a distance between the outer hoops of each pattern For setting [...]

BES-941BC • BES-1241BC 86 Chapter 4 Editing of Embroidering Data Other Editing Setting of other functions related to editing is available. The following types of setting is available. 0 stitch deletion For deleting stitches at the same point without stepping forward or back. This function is previously set to (for not deleting 0stitch)upon shipme[...]

BES-941BC • BES-1241BC 87 Chapter 4 Editing of Embroidering Data Thread Trimming Feed Number 3. Select this function by pressing . 4. Select the number of feeds by pressing . 5. Press END after setting is finished. Swing Width Correction Correction values within -5 ~ 20 can be input. However, excessively large values may result in distortion of a[...]

BES-941BC • BES-1241BC 88 Chapter 4 Editing of Embroidering Data 7. Press END after setting is finished. Press when setting continuously.[...]

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

BES-941BC • BES-1241BC 90 Chapter 5 Setting What Can the Machine Do? Setting of Needle Bars Needle bars allocated in the sequence of embroidering ( Page 92) Setting of Thread Breakage Sensor Thread breakage sensor ON/OFF ( Page 94) Thread breakage sensitivity ( Page 94) Number of stitches in automatic step back ( Page 95) Display of total stitch [...]

BES-941BC • BES-1241BC 91 Chapter 5 Setting Data transfer speed ( Page 109) Display language ( Page 110) Alarm sound ( Page 111) Motive speed ( page 112) Release B1 error ( page 113) Setting of Boring Boring mode ON/OFF ( page 114) Data shift ON/OFF ( page 115) Setting of Lock Stitch Lock stitch ON/OFF (sewing start position) ( page 115) Lock sti[...]

BES-941BC • BES-1241BC 92 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. 1. Press . 2. Select a sewing sequence to modify by pressing . The current embroidering sequence is selected while embroidering is interrupted. Press f[...]

BES-941BC • BES-1241BC 93 Chapter 5 Setting Insertion of Hoop Retract 1. Press to highlight the position right next to the position to insert the hoop retract and press . 2. Press the END button. The changed setting is stored and the previous screen is displayed.[...]

BES-941BC • BES-1241BC 94 Chapter 5 Setting Thread Breakage Sensor Validity or invalidity and sensitivity of the thread breakage sensor can be set. Setting of sensor validity/invalidity This function is previously set to valid for all heads upon shipment. 1. Press . 2. Specify the number of a machine head by pressing ten keys and validate or inva[...]

BES-941BC • BES-1241BC 95 Chapter 5 Setting 4. Input sensitivity of the thread breakage sensor. 5. Press END . Modified setting is saved and the previous screen is displayed again. Automatic Step-Back The number of stitches to step back automatically in case of a thread breakage can be set. Setting can be done within the range of 0 ~ 10 stitches.[...]

BES-941BC • BES-1241BC 96 Chapter 5 Setting Setting of Lower Thread Counter/Stitch Counter The lower thread counter reduces the indication each time one pattern is finished. After the reduction is finished, an error message can be displayed. The stitch counter increases the indication stitch by stitch. The lower thread counter can be validated or[...]

BES-941BC • BES-1241BC 97 Chapter 5 Setting Setting of Machine Machine motions can be set. Embroidery Hoop Specify a type of an embroidery hoop set on the machine. A type of a hoop to be selected varies depending on a type of a hoop (flat or cap) selected by a switch on the operation panel. When a flat hoop is selected Tabular square hoop Sash fr[...]

BES-941BC • BES-1241BC 98 Chapter 5 Setting Speed Range A range of speed for each needle bar can be set. This setting is explained on the basis of the BES-941 screen. The speed range can be set within the range of 1 ~ 6. 1. Press . 2. Select by pressing . 3. Press . 4. Select a needle bar by pressing . When setting the same speed range for all ne[...]

BES-941BC • BES-1241BC 99 Chapter 5 Setting Speed of Each Speed Range Maximum speed of each range can be set. Speed can be input in increments of 10rpm. The upper limit of a speed to be set varies depending on a selected hoop. 1. Press . 2. Select by pressing . 3. Press . 4. Select a speed range to modify by pressing . 5. Input a required speed b[...]

BES-941BC • BES-1241BC 100 Chapter 5 Setting Setting of Mending Details of mending can be set in case of a thread breakage. Contents of each setting item are as described below. Item Contents For setting a mending end point (number of stitches before a thread breakage) within the range of 1 ~ 10. This function is previously set to 1 stitches upon[...]

BES-941BC • BES-1241BC 101 Chapter 5 Setting Setting of thread breakage error resetting method 4. Select by pressing . 5. Press for modifying a resetting method. For setting whether to stop embroidering temporarily at the mending stop point 4. Select by pressing . 5. Press and select whether to stop embroidering temporarily. Setting of thread tri[...]

BES-941BC • BES-1241BC 102 Chapter 5 Setting Thread Trimming Length Length of thread to leave on the needle bar after thread trimming can be set for each needle bar. This function is previously set to 5 upon shipments. 1. Press . 2. Select by pressing . 3. Press . 4. Select a needle bar to modify by pressing . Press for setting the same speed ran[...]

BES-941BC • BES-1241BC 103 Chapter 5 Setting 1. Press . 2. Select by pressing . 3. Press . 4. Input thread withdrawal length by pressing ten keys. 5. Press END . Modified setting is saved and the previous screen is displayed again. Inching Whether to select the inching mode for thread trimming can be set. This function is previously set to select[...]

BES-941BC • BES-1241BC 104 Chapter 5 Setting Sewing Area An allowable area for sewing can be set. A maximum sewing area during operation of every other machine heads is as shown below. 1. Press . 2. Select by pressing . 3. Press . 4. Specify coordinates of the upper left of the sewing area. Move the hoop by pressing . 5. Press . Pressing set a ma[...]

BES-941BC • BES-1241BC 105 Chapter 5 Setting Registration of Sewing Start Position Register a position to start sewing. When returning to a registered sewing start position, hold down STOP and press . 1. Press the key. The hoop coordinates are displayed. 2. Shift the hoop to a position to start sewing by pressing the . 3. Press END . 4. Press the[...]

BES-941BC • BES-1241BC 106 Chapter 5 Setting Hoop Automatic Retract Set whether to move the hoop automatically to the retract point at the end of sewing. This function is previously set to no hoop automatic retract upon shipments. 1. Press . 2. Select whether to retract the hoop automatically by pressing . For automatically retracting the hoop Fo[...]

BES-941BC • BES-1241BC 107 Chapter 5 Setting Setting of Environment Return to Start Point Whether to return to the start point after sewing is finished can be set. 1. Press twice. 2. Select by pressing . 3. Press . 4. Select by pressing . 5. Select whether to validate a return to the start point by pressing . When the start point return is valid [...]

BES-941BC • BES-1241BC 108 Chapter 5 Setting 4. Select by pressing . 5. Modify setting by pressing . Press ESC ESC for invalidating the modification. 6. Press END . Modified setting is saved and the previous screen is displayed again. Checking the Embroidery Area The embroidery area can be checked according to the following procedure. The followi[...]

BES-941BC • BES-1241BC 109 Chapter 5 Setting Power Voltage Voltage of power supplied to the machine can be specified. Available voltage is 200V, 220V, 230V and 240V. Item Contents 200V 220V 230V 240V 1. Press twice. 2. Select by pressing . 3. Press . 4. Select voltage by pressing . 5. Press END . Modified setting is saved and the previous screen [...]

BES-941BC • BES-1241BC 110 Chapter 5 Setting 3. Press . 4. Select [RS Speed] by pressing . 5. Select cpmmunication speed by pressing . 6. Press END . 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 JPN J[...]

BES-941BC • BES-1241BC 111 Chapter 5 Setting 4. Select [Language] by pressing . 5. Select a language to display by pressing . 6. Press END . The previous screen is displayed again with a display in a selected language. Alarm Sound Whether to generate a sound in case of an error can be set. The following sounds can be set. ON A sound is generated [...]

BES-941BC • BES-1241BC 112 Chapter 5 Setting Motive Speed The startup speed of the main shaft can be set. The following startup speed can be set. NOMAL Starts up the main shaft at the normal speed. UP Speeds up the startup speed of the main shaft. CAP Speeds up the startup speed of the main shaft when using the cap frame. FLAT Speeds up the start[...]

BES-941BC • BES-1241BC 113 Chapter 5 Setting Release B1 error The resetting method of the b1 error can be set. The following resetting methods can be set. MANUAL Manually resets entanglement AUTO Automatically resets entanglement RETRY Automatically resets entanglement and restarts the operation 1. Press twice. 2. Select with . 3. Press . 4. Sele[...]

BES-941BC • BES-1241BC 114 Chapter 5 Setting Boring Whether to validate or invalidate the boring mode and to shift data in case of boring can be set. This setting is available only for sewing data which has been created for boring. The machine itself cannot check if the sewing data is for boring or not. Therefore, make sure to check the data befo[...]

BES-941BC • BES-1241BC 115 Chapter 5 Setting Validation/Invalidation of Data Shift 1. Press twice. 2. Select by pressing . 3. Press . 4. Select by pressing . 5. Validate or invalidate the data shift by pressing . When the data shift is valid When the data shift is invalid 6. Press END . Modified setting is saved and the previous screen is display[...]

BES-941BC • BES-1241BC 116 Chapter 5 Setting 3. Press . 4. Select with . 5. Press to validate or invalidate the lock stitch. Validating the lock stitch Invalidating the lock stitch 6. Press the END button. The changed settings are stored and the previous screen is displayed. Setting the lock stitch on the sewing send position 1. Press twice. 2. S[...]

BES-941BC • BES-1241BC 117 Chapter 5 Setting 5. Press to validate or invalidate the lock stitch. Validating the lock stitch Invalidating the lock stitch 6. Press the END button. The changed settings are stored and the previous screen is displayed. Setting the lock stitch at the sewing start position after thread trimming 1. Press twice. 2. Select[...]

BES-941BC • BES-1241BC 118 Chapter 5 Setting Speed Limit in a Short Pitch Speed can be limited when stitching in a designated pitch. The pitch can be designated between 0.0 and 2.0 mm in units of 0.1 mm. The speed can be set from 400 rpm to the maximum speed available for the current frame in units of 10 rpm. 1. Press twice. 2. Select with . 3. P[...]

BES-941BC • BES-1241BC 119 Chapter 5 Setting 2. Press the END button. The changed settings are stored and the previous screen is displayed. Feed Timing The timing of needle drop and hoop movement can be adjusted according to the cloth thickness. The value can be designated between 95 and 125 degrees in 1-degree units. The smaller values are suita[...]

BES-941BC • BES-1241BC 120 Chapter 5 Setting Display of Information Information about the machine and patterns can be displayed on the screen. Pattern Information Detailed information about a selected pattern can be checked. Contents of information to be displayed are as shown below. Size of sewing data (mm) Coordinates of embroidering start poin[...]

BES-941BC • BES-1241BC 121 Chapter 5 Setting Features of Machine Detailed information of the machine can be checked. Contents of information to be displayed are as shown below. Maximum moving range of flat hoop (for all heads) Maximum moving range of flat hoop (for every other head) Maximum moving range of cap hoop Number of heads Number of needl[...]

BES-941BC • BES-1241BC 122 Chapter 5 Setting Information about Versions Information about CPU ROM version, etc. can be checked. Contents of information to be displayed are as shown below. Software version Main CPU ROM version Machine's bridge type (W: wide bridge S: standard bridge) Upper axis CPU ROM version Lower axis CPU ROM version Rotar[...]

Chapter 6 Operation of Machine[...]

Chapter 6 Operation of Machine BES-941BC • BES-1241BC 124 1. Operating Procedures 1-1 Power Source 1. Turn the power on to the machine. 2. Reset the emergency stop button. 3. Press the power switch. 4. A message is displayed on the LCD. • The alarm sounds three times and the needle bar and the presser foot move upward. Then the hoop moves to th[...]

Chapter 6 Operation of Machine BES-941BC • BES-1241BC 125 Press the stop switch or STOP to stop the operation of the machine. The stop switch adopts the push-turn-lock method. If you want the machine to remain stopped, turn the stop switch clockwise while pushing it. 2. Machine Stop 2-1. Stopping the Machine 2-2. Resetting Machine Stop • When t[...]

Chapter 6 Operation of Machine BES-941BC • BES-1241BC 126 3. Measures against Thread Breakage 3-1 Remedies 1. If embroidering is suspended due to thread breakage, the THREAD SENSOR lamp of the machine head with a thread breakage blinks. 2 . Correct the broken thread and pass it through again. * Refer to "Chapter 1, 4-1 Upper Threading" [...]

Chapter 6 Operation of Machine BES-941BC • BES-1241BC 127 3-2 Mending The machine head whose MENDING lamp is lit performs embroidering by the preset number stitches. When it is completed, all the machine heads start normal embroidering operation. • The MENDING lamps except for the machine head whose needle thread has been broken are turned off.[...]

Chapter 6 Operation of Machine BES-941BC • BES-1241BC 128 No.1 Stitch No.2 Stitch No.3 Stitch 1 . Turn off the MENDING lamp No. 3 at the standby position A. (The position A should be the mending end position.) 2. Press the jog switch or to move it backward. Turn off the MENDING lamp No. 2 at the position B. (The position B does not become the end[...]

Chapter 6 Operation of Machine BES-941BC • BES-1241BC 129 4. Jog Embroidering • Jog embroidering can be used for preventing the thread from slipping from the needle at the start of embroidering. • Jog embroidering can be executed as long as the start switch at the machine head is held down. Note) Never apply a tape on the switch to keep jog o[...]

Chapter 6 Operation of Machine BES-941BC • BES-1241BC 130 • If "area over" is displayed, press the check switch. The hoop automatically moves inside the embroidering area, where the pattern is set, at the nearest position. 0.1mm 0.1mm Embroidering area (Example) Embroidering start position 6. Area Check 6-1 External Tracing • If the[...]

Chapter 6 Operation of Machine BES-941BC • BES-1241BC 131 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.[...]

Chapter 6 Operation of Machine BES-941BC • BES-1241BC 132 7-2 Inching Mode during Embroidering (Forcible Hoop Movement) Note) • Moving the frame greatly in the inching mode may cause an interference with the machine. Pay utmost care in the inching mode. • Although the distance of the frame moved in the inching mode is stored even after turnin[...]

Chapter 6 Operation of Machine BES-941BC • BES-1241BC 133 8. Detection of Zero Point After the zero point is detected, the hoop returns to the initial point 1. Press 0 SPACE while pressing STOP with the machine stopped. Initial screen Temporary stop screen 2. The hoop moves and the zero point is detected. 3. The initial screen is displayed again.[...]

Chapter 6 Operation of Machine BES-941BC • BES-1241BC 134[...]

Chapter 7 Maintenance[...]

Chapter 7 Maintenance BES-941BC • BES-1241BC 136 Turn off the power switch before starting maintenance. Failure to do so may start the machine unintentionally through an accidental activation of the START switch, resulting in bodily injuries. Be sure to wear protective goggles and gloves when handling the lubricating oil or grease, so that no oil[...]

Chapter 7 Maintenance BES-941BC • BES-1241BC 137 2. Oiling To extend the machine's service life, supply oil to the following places at regular intervals. (Note) • When oiling, be sure to supply Brother's machine oil (Nisseki Sewing Lube #10 or the equivalent) using the dropper. • Excessive oiling may cause the material to be stained[...]

Chapter 7 Maintenance BES-941BC • BES-1241BC 138 BES-941BC Lubricate the following part indicated by the arrow ("clearance" between the connecting rod and the needle thread take-up bearing) once a week. (Note) • In lubrication, select needle bar 9 and remove arm cover L to check the lubrication area. Be sure to wipe off excessive oil [...]

Chapter 7 Maintenance BES-941BC • BES-1241BC 139 3. Greasing To extend the machine's service life, supply grease to the following places at regular intervals. (Note) • When greasing, be sure to use the grease tank BR2 (black) provided with the machine. • For overhauling, contact your distributor or refer it to trained experts. 3-1 Head G[...]

Chapter 7 Maintenance BES-941BC • BES-1241BC 140 BES-1241BC 1. Remove two connectors from the rear of the needle bar case. 2 . Loosen four screws q , and remove the head cover w , and loosen two screws e and remove the head cover R r . (Note) Because the heads No.1 and No.2 have the head covers R and L respectively, remove both the the covers whe[...]

Chapter 7 Maintenance BES-941BC • BES-1241BC 141 BES-941BC 1. Remove two connectors from the rear of the needle bar case. 2 . Loosen four bolts q , and remove the needle case w . 3. Loosen three screws e , and remove the presser foot guide plate r . 4. Loosen two screws t , and remove the arm cover L y . 5 . Loosen four screws u , and remove the [...]

Chapter 7 Maintenance BES-941BC • BES-1241BC 142 BES-1241BC 1. Remove two connectors from the rear of the needle bar case. 2 . Loosen four screws q , and remove the head cover w , and loosen two screws e and remove the head cover R r . (Note) Because the heads No.1 and No.4 have the head covers R and L respectively, remove both the the covers whe[...]

Chapter 7 Maintenance BES-941BC • BES-1241BC 143 e t r t q w 3-2 Feed Guide Section Check the X-feed linear guides (2 positions) and the Y-feed linear guides (one each on the right and left). (Note) When greasing, be sure to use the grease tank 30 provided with the machine. Procedure 1. Loosen 12+2 screws q , and remove the X- feed cover w . 2. R[...]

Chapter 7 Maintenance BES-941BC • BES-1241BC 144 3-3. Lower shaft module 1. Remove the peripheral parts so that the top of the case cover of the lower shaft can be seen. 2. Remove the tape covering the notch if the lower shaft's case cover is notched. When there is no notch, make one with a knife. (Note) Be careful not to make a deep notch t[...]

Chapter 7 Maintenance BES-941BC • BES-1241BC 145 7. Turn on the power of the sewing machine and measure the out-of-step limit of the lower shaft module in the test mode. 8. Replace the lower shaft module if it cannot be repaired even if being checked in the test mode. 9. Install the lower shaft's case cover and secure it with polyester tape.[...]

Chapter 7 Maintenance BES-941BC • BES-1241BC 146[...]

Chapter 8 Standard Adjustment[...]

Chapter 8 Standard Adjustment BES-941BC • BES-1241BC 148 Turn off the power switch and pull out the plug before starting adjustment. Failure to do so may start the machine unintentionally through an accidental activation of the START switch, re- sulting in bodily injuries. • Adjustment CAUTION If adjustment should be made while the power switch[...]

Chapter 8 Standard Adjustment BES-941BC • BES-1241BC 149 1. Dismount the pulley cover and turn the pulley B q until the pulley scale indicates 180˚ and the needle bar is set at the lowest position. (The pulley B " " mark and the stop mark " " are aligned.) 2. Insert the positioning bar w into the hole of the pulley q and fix [...]

Chapter 8 Standard Adjustment BES-941BC • BES-1241BC 150 180 ° q q w Do not hit this section. Tighten the bolt o so that the clearance can be even. u e r y t i o e 10.8mm When using the bottom dead center gauge Cutting section Cutting section !0 !0 i u o[...]

Chapter 8 Standard Adjustment BES-941BC • BES-1241BC 151 1. Turn the pulley B q until the scale of pulley B q indicates 180˚ (where the pulley B indication mark " " and the stop mark " " are aligned) and the needle bar is set at the lowest position. 2. Insert the positioning bar w into the hole of the pulley B q and fix the d[...]

Chapter 8 Standard Adjustment BES-941BC • BES-1241BC 152 q Lower shaft 2. Replacing (Attaching) Rotary Hook 1. Turn the power switch off. 2 . Tighten the screw q of the rotary hook cutting section to fit to that of the lower shaft w . 3 . When mounting, press it inward until it stops. Note) After replacing rotary hooks, refer to "4. Ad- just[...]

Chapter 8 Standard Adjustment BES-941BC • BES-1241BC 153 1 2 3 4 5 6 7 8 9 w e 2mm 2mm r 0.3~0.5mm 3. 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 9. 3. Remove two flat scr[...]

Chapter 8 Standard Adjustment BES-941BC • BES-1241BC 154 1. Turn the power switch on. 2. Check that the machine pulley B q is at the stop position (at 100˚ of the scale). If not, turn the pulley B q until it comes to the stop position. 3. While the machine is at the stop position (when the initial screen or halt screen is displayed), press the w[...]

Chapter 8 Standard Adjustment BES-941BC • BES-1241BC 155 6. After timing adjustment the is finished for each head, set the pulley B q to the stop position (at 100˚ of the scale) and press ESC ESC . The machine enters the standby state. The adjustment of the rotary hook is completed and the timing is stored. The rotary hook returns to the stop po[...]

Chapter 8 Standard Adjustment BES-941BC • BES-1241BC 156 q w r t w e q 1mm 6. Adjustment of Thread Trimmer 6-1 Attaching the Fixed Knife Attach the fixed knife q to the pin w and move it backward to the end of the slot, then mount it there. 6-2 Checking the Movable Knife Position 1. Turn the power switch on and wait until the hoop home position d[...]

Chapter 8 Standard Adjustment BES-941BC • BES-1241BC 157 • The thread trimmer connecting rod B q has a backlash of about 0.1 ~ 0.2 mm back and forth. Tighten the two bolts e while pulling them forward by the backlash amount. • Tighten the two bolts e so that the thread trimmer connecting rods B q and C w are positioned in a straight line. 5. [...]

Chapter 8 Standard Adjustment BES-941BC • BES-1241BC 158 q w e w 7. Adjusting the Belt Tension The belt Tension is adjusted to the optimum tension at the time of shipment from the factory. However, as the belt is used,it becomes run in and may loosen around the machine pulley and motor pulley . Use the following procedure to check the belt tensio[...]

Chapter 9 List of Error Messages[...]

BES-941BC • BES-1241BC 160 Chapter 9 List of Error Messages Code E-00 E-01 E-02 E-03 E-04 E-05 E-06 E-07 E-08 E-09 E-0A E-0B E-0C E-0D E-0E E-14 E-15 E-16 E-17 E-18 E-1A E-1B E-1C E-1D E-1E E-1F Error Messages ERROR 00 ERROR 01 Overtravel Stop SW was pressed during home positioning Zero positioning is out of range Needle stop position error Needl[...]

BES-941BC • BES-1241BC 161 Chapter 9 List of Error Messages Code E-21 E-22 E-23 E-24 E-25 E-26 E-27 E-28 E-29 E-2A E-2B E-2C E-2D E-2E E-2F E-31 E-32 E-33 E-34 E-36 E-38 E-39 E-3C E-40 E-A1 E-A2 E-A3 E-A4 E-A5 E-A6 E-A7 Error Messages Area over Area over Area over Area over Area over Area over Area over Area over Area over Area over Area over Are[...]

BES-941BC • BES-1241BC 162 Chapter 9 List of Error Messages Code E-A8 E-B0 E-B1 E-B2 E-B3 E-B4 E-B5 E-B6 E-B7 E-B8 E-B9 E-BA E-BC E-BD E-BE E-BF E-C1 E-C2 E-C3 E-C4 E-C5 E-C6 E-C7 E-C8 E-C9 E-CA E-CB E-CD E-CE E-CF Error Messages Main shaft stop position sensor error Lower shaft CPU error Thread jammed in rotary hook Hook motor origin point error[...]

BES-941BC • BES-1241BC 163 Chapter 9 List of Error Messages Code E-D0 E-D1 E-D2 E-D3 E-E1 E-E2 E-E3 E-E4 E-E5 E-E6 E-E7 E-E8 E-E9 E-EA E-EB E-EC E-ED E-EF E-F1 E-F2 E-F3 E-F4 E-F5 E-F6 E-F7 E-F8 E-F9 E-FA E-FB E-FF Error Messages Power PC board error Cooling fan motor stop Power voltage upper limit error Power voltage lower limit error X-axis pul[...]

BES-941BC • BES-1241BC 164 Chapter 9 List of Error Messages[...]

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.[...]

BES-941BC • BES-1241BC 166 Chapter 10 Troubleshooting Machine operation abnormal • 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? • Is the machine properly threa[...]

BES-941BC • BES-1241BC 167 Chapter 10 Troubleshooting • Is the thread take-up stopped due to interference with the upper case cover? [Adjustment] Loosen the hexagon socket head cap screw of the thread take- up operating lever and adjust the take-up movable range. Tighten it securely afterwards. • Are the needle bar clamp and the top dead cent[...]

BES-941BC • BES-1241BC 168 Chapter 10 Troubleshooting An overtravel error occurs. • Is the frame within the cap frame area? Move the frame within the cap frame area and turn on the power. • Check to see if the signal of the X area sensor turns ON and OFF in PORT test mode. When the signal does not change, refer to the block diagram showing th[...]

BES-941BC • BES-1241BC 169 Chapter 10 Troubleshooting Symptom Measures The needle stop position error oc- curs. • Is the main shaft brake solenoid operating? If not, refer to the block diagram showing the cable connections and check to see if the connections from the brake solenoid to the power PCB and from connector P27 of the power PCB to con[...]

BES-941BC • BES-1241BC 170 Chapter 10 Troubleshooting Symptom Measures The thread breakage error frequently occurs although thread is not broken. • Enter the CASE test mode and turn the thread breakage sensor pulley corresponding to each needle bar of the head with which this error occurs while switching the needle bar from number 1 in ascendin[...]

BES-941BC • BES-1241BC 171 Chapter 10 Troubleshooting Symptom Measures • Is thread tangled in the rotary hook? Clean the rotary hook. • Is the lower shaft with which the error occurs rotating? If so, check to see if connection from the lower shaft sensor PCB to the BC PCB is proper. Adjust the lower shaft sensor. Replace the lower shaft senso[...]

BES-941BC • BES-1241BC 172 Chapter 10 Troubleshooting Symptom Measures Thread trimming motor zero point error occurs. • Is lint clogged between the travelling blades? Remove it. • Is the thread trimming motor operating? If so, refer to the block diagram showing the cable connections and check to see if connection from the thread breakage sens[...]

BES-941BC • BES-1241BC 173 Chapter 10 Troubleshooting Symptom Measures ERROR C7 occurs. • Is the lower shaft being tested in the test mode? If so, refer to the operation method of the test mode and exit the test mode or turn the power off once and on again. • Turn the power off once and on again. If the same error occurs again, replace the ma[...]

BES-941BC • BES-1241BC 174 Chapter 10 Troubleshooting Symptom Measures Power voltage upper or lower limit error occurs. • Is the voltage set on the panel? If not, set it according to the power supply voltage of the area where the machine is used. • Is the tap voltage of the power transformer (terminal connection of mark tube T) adjusted to th[...]

BES-941BC • BES-1241BC 175 Chapter 10 Troubleshooting Only a certain head does not oper- ate. • Is the head out of action with either the head switch or the machine controller? • Refer to the block diagram showing cable connections and check to see that other cables are connected to the head switch PCB and the head PCB and the head PCB proper[...]

BES-941BC • BES-1241BC 176 Chapter 10 Troubleshooting Symptom Measures The lower shaft PCB is faulty. 1. Turn off the power of the machine. 2. Disconnect P4 and P10 of the lower shaft PCB. If the lower shaft PCB is removed from the machine or P8 or P9 is disconnected, the lower shaft connected to other lower shaft PCB will not operate, either. 3.[...]

Connection and Installation of Optional Equipment[...]

BES-941BC • BES-1241BC 178 Connection and Installation of Optional Equipment q e o i y t u r w Attaching Bobbin Winder 1. Mount two pieces of bobbin stand L w on the thread winder stay q with nut 4 !0 . 2. Mount the thread winder assembly (set) e on the thread winder stay q with the tightening screw !1 . 3. Mount the thread guide r with the drill[...]

BES-941BC • BES-1241BC 179 Connection and Installation of Optional Equipment Winding lower thread t u y r i e o w q 1. Turn the power switch on. 2. Set the bobbin q in the bobbin winder shaft w . 3. Put the thread through the thread guide e . 4 . Wind the thread around the bobbin q several times in the direction of the arrow. 5. Press the bobbin [...]

INSTRUCTION MANUAL BROTHER INDUSTRIES,LTD. NAGOYA,JAPAN Printed in Japan 155-941, C41 S93941-002 1999.09. H (1)[...]