RH-9820 INSTRUCTION MANUAL Please read this manual before using the machine. Please keep this manual within easy reach for quick reference.
Thank you very much for buying a BROTHER sewing machine. Before using your new machine, please read the safety instructions and the explanations given in the instruction manual. With industrial sewing machines, it is normal to carry out work while positioned directly in front of moving parts such as the needle and thread take-up lever, and consequently there is always a danger of injury that can be caused by these parts.
SAFETY INSTRUCTIONS [1] Safety indications and their meanings This instruction manual and the indications and symbols that are used on the machine itself are provided in order to ensure safe operation of this machine and to prevent accidents and injury to yourself or other people. The meanings of these indications and symbols are given below. Indications DANGER The instructions which follow this term indicate situations where failure to follow the instructions may result in death or serious injury.
[2] Notes on safety DANGER Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet before opening the cover of the control box. Touching areas where high voltages are present can result in severe injury. CAUTION Environmental requirements Use the sewing machine in an area which is free from sources of strong electrical noise such as electrical line noise or static electric noise.
CAUTION Sewing This sewing machine should only be used by operators who have received the necessary training in safe use beforehand. If using a work table which has casters, the casters should be secured in such a way so that they cannot move. The sewing machine should not be used for any applications other than sewing. Attach all safety devices before using the sewing machine. If the machine is used without these devices attached, injury may result.
[3] Warning labels The following warning labels appear on the sewing machine. Please follow the instructions on the labels at all times when using the machine. If the labels have been removed or are difficult to read, please contact your nearest Brother dealer. 1 3 4 2 Do not touch the knife or press any objects against the machine while sewing, as this may result in personal injury or damage to the machine.
0332B 0331B Belt cover (Rear) 0333B 0486B 0334B 0485B RH-9820 v
CONTENTS 1. NAMES OF MAJOR PARTS................. 1 4. PREPARATION BEFORE SEWING ... 30 2. MACHINE SPECIFICATIONS ............... 2 2-1. Specifications .............................................. 2 2-2. Sewing shapes............................................ 3 3. INSTALLATION .................................... 4 3-1. Installing the needle...................................30 4-2. Threading the upper thread .......................31 4-3. Threading the lower thread........................
-17. Adjusting the cutting pressure ...................90 8. CLEANING AND INSPECTION ...........68 Daily cleaning and inspection.................... 68 9-18. Adjusting the work clamp lift amounts .......91 8-1-1. Cleaning............................................. 68 9-19. Adjusting the work clamp positions............92 8-1-2. Checking the air filter ......................... 69 9-20. Adjusting the positions of the work clamp plates .........................................................93 8-1.
1. NAMES OF MAJOR PARTS 1. NAMES OF MAJOR PARTS 0335B The accessory switches shown below to use for starting the sewing machine will vary depending on the destination.
2. MACHINE SPECIFICATIONS 2. MACHINE SPECIFICATIONS 2-1. Specifications Thread trimmer -00 -01 -02*1 *1: *2: SPECIFICATIONS Use Sewing speed Sewing shape Sewing length O O O -02 specifications are divided into L1422 to L3422 specifications depending on the sewing lengths, so please specify the sewing length when ordering. This is not covered by specification designations, but compatibility is possible by replacement of gauge parts. (Ask the place of purchase for details.
2. MACHINE SPECIFICATIONS 2-2.
3. INSTALLATION 3. INSTALLATION CAUTION Machine installation should only be carried out by a qualified technician. Contact your Brother dealer or a qualified electrician for any electrical work that may need to be done. The sewing machine weighs approximately 120 kg. Installation of the sewing machine and adjustment of the table height should be carried out by four or more people. Do not connect the power cord until installation is complete.
3. INSTALLATION 3-1-1. When setting up on top of the table 2 x 4 mm dia. 20 depth (from underneath table) For pneumatic unit For operation panel cord For control box For cords For cords Φ50 4 x 2 mm dia. 10 depth For operation panel For treadle unit 2 x 4 mm dia. 20 depth (From underneath table) For valve unit For oiler For cotton stand 2 x 2 mm dia.
3. INSTALLATION 3-1-2. When embedding into the table When embedding the machine head into the table, some extra components will be required, so contact the place of purchase for further details. NOTE: When embedding the machine head into the table, be sure to install the L-shaped table reinforcement plates. (Refer to “3-3. Installing the table reinforcement plates (embedded installation only)”.
3. INSTALLATION 3-2. Installing the control box CAUTION Before installing the control box, take steps to make sure that the control box does not fall down. If this is not done, injury to feet or damage to the control box may result. 0340B Before installing the control box (1), check that the model plate (2) on the control box (1) is “RX9820” to indicate that it is an RX-control box for RH-9820 sewing machines. (1) Control box (3) Bolts [4 pcs.] (4) Plain washers [4 pcs.] (5) Nuts [8 pcs.
3. INSTALLATION 3-3. Installing the table reinforcement plates (embedded installation only) (1) L-shaped reinforcement plates [2 pcs.] (2) Bolts [10 pcs.] (3) Plain washers [10 pcs.] (4) Spring washers [10 pcs.] (5) Nuts [10 pcs.] 0342B 3-4. Installing the machine head 3-4-1. When setting up on top of the table Before installing the machine head, install the three treadle mounting bolts (A) to the table.
3. INSTALLATION CAUTION Always be sure to install the stopper bolt before tilting back the machine head in step 4 below. If this is not done, the machine head will tip over and fall down, and injury or damage to the machine head may result. 0344B 0345B 0346B (rear) 1. Check that the four bed base cushions (1) have all been installed to the bottom of the bed base, and then place the machine head onto the table.
3. INSTALLATION 3-4-2. When embedding into the table (1) Bed support plates [4 pcs.] (2) Bolts [16 pcs.] * Install so that they are horizontal to the bed base. 0347B NOTE: • When placing the machine head onto the table, have four or more people hold the machine head by the locations places indicated by the in the illustration. • Do not hold by the head support lever (3). (4) (5) (6) (7) (rear) Rubber sheets [4 pcs.] Bolts [4 pcs.] Washers (large) [4 pcs.] Nuts [4 pcs.
3. INSTALLATION 3-5. Tilting back and returning the machine head CAUTION Hold the machine head with both hands when tilting it back or returning it to its original position. In addition, do not subject the machine head to extra force while it is tilted back. If this is not observed, the machine head may lose balance and fall over (together with the table), and injury or damage to the sewing machine may result. Do not hold the feed base (2) and the feed guide shaft (3).
3. INSTALLATION 3-6. Installing the belt cover and feed bar cover U 0351B 0350B (1) Belt cover (2) Screws [4 pcs.] • Before installing the belt cover, pass the cords through the belt cover notch (3). NOTE: • Be careful not to clamp the cords when installing the belt cover. If care is not taken, the belt cover and cords may become damaged. • If using the embedded installation method, check that the belt cover (1) does not touch the table when the machine head is tilted back.
3. INSTALLATION 3-8. Installing the operation panel (1) Operation panel (2) Screws [4 pcs.] 0355B 1. Pass the cord of the operation panel (1) through the table hole. 2. Loosen the two screws (3) at the rear of the control box, open the cord presser plate (4) in the direction of the arrow, and pass the cord through the hole into the box. (Refer to “3-1. Table processing diagram” for details on the installation position for the operation panel.
3. INSTALLATION 3-10. Installing the air unit and valve unit Install to the underside of the table. (Refer to “3-1. Table processing diagram” for the installation positions.) (1) (2) (3) (4) (5) Air unit Screws [2 pcs.] Valve unit Screws [2 pcs.] Air tube No. 4 Insert air tube No. 4 (5) into the joint (6) and the joint (7). NOTE: • Install the air unit (1) so that it does not touch the table leg.
3. INSTALLATION 3-12. Installing the treadle unit (when using the treadle) 3-12-1. When setting up on top of the table NOTE: Before installing the machine head, install the three treadle unit mounting bolts (A) to the table. (Refer to “3-4-1. When setting up on top of the table”.) (1) (2) (3) (4) Treadle unit Plain washers [3 pcs.] Spring washers [3 pcs.] Nuts [3 pcs.] Pass the connector of the treadle unit (1) into the control box through the hole in the rear of the control box. (Refer to “3-8.
3. INSTALLATION 3-13. Installing the hand start switch (when using the hand start switch) 0362B (1) (2) (3) (4) * Hand start switch Screws [2 pcs.] Cord holders [3 pcs.] Screws [3 pcs.] When setting up on top of the table, use only two of the cord holders (3) and screws (4). Pass the cord of the hand start switch (1) through the table hole (5), and pass the connector into the control box through the hole in the rear of the control box. (Refer to “3-8. Installing the operation panel”.
3. INSTALLATION Adjust the position of the hand start switch (1) as follows so that it is in an easy-to-use position. [Forward/back and vertical position] 1. Loosen the two screws (2), and then move the hand start switch mounting plate (7) forward, back, up or down to adjust its position. 2. Once adjustment is complete, securely tighten the screws (2).
3. INSTALLATION 3-14. Connecting the cords 3-14-1. Connecting the connectors inside the control box 0365B 1. Remove the eight screws (1), and then remove the control box cover (2). 2. Gently tilt back the machine head. 3. Pass the cord bundle through the table hole, and then pass it into the control box through the hole in the rear of the control box. 0524B 4. Pass the hammer valve harness (3) into the control box through the hole in the rear of the control box. (4) Hammer valve 5.
3. INSTALLATION Securely lock the cord clamps. * Be sure to make the ground connection. (Refer to “3-14-2. Connecting the ground wire”.
3. INSTALLATION Press the tabs. *: Be sure to make the ground connection. (Refer to “3-14-2. Connecting the ground wire”.) Connectors Machine head memory 7-pin Upper shaft motor 3-pin Synchronizer 14-pin Connectors θ-feed motor 4-pin black (Gimp clamp, lower tension release) solenoid 6-pin Upper tension release solenoid 4-pin Y-feed motor 4-pin blue X-feed motor 4-pin white At power supply motor P.C.
3. INSTALLATION 0368B 6. Close the cord presser plate (9) in the direction of the arrow, and secure it by tightening the two screws (10). NOTE: • Make some slack in the cords outside the control box so that the cords do not get pulled too tightly inside the control box. • Securely close the cord presser plate (9). If dust gets inside the control box, it may cause problems with operation. 7. Check that the cords do not get pulled, and then gently return the machine head to its original position.
3. INSTALLATION 3-14-2. Connecting the ground wire CAUTION Be sure to connect the ground. If the ground connection is not secure, you run a high risk of receiving a serious electric shock, and problems with correct operation may also occur.
3. INSTALLATION 3-14-3. Connecting the power cord Insert the power cord plug (1) into a wall outlet. 1. Attach an appropriate plug to the power cord (2). (The green and yellow wire is the ground wire.) 2. Insert the power plug into a properly-grounded AC power supply. * The inside of the control box uses single-phase power. NOTE: Do not use extension cords. They may cause problems with correct operation of the sewing machine.
3. INSTALLATION 3-14-4. Connecting the air tubes CAUTION Do not switch the insertion locations for air tube No. 5 and No. 6 by mistake. If they are not connected correctly, the hammer may be lowered when the power is turned on or when the air cock is opened, and serious injury may result. 1. Insert air tube No. 1 coming from the machine head into the nipple for the air unit assembly (1). (The numbers appear on the air tubes coming from the sewing machine. ) 2. Insert accessory air tube No. 5 and No.
3. INSTALLATION 3-15. Installing the air hose Connect the air hose coming from the compressor to the air unit which is installed underneath the table. 1. Close the cock (1). 2. Turn the nut (2) at the end of the air hose and connect it to the valve (3). 3. Open the cock at the compressor. * Check that no air is leaking from the valve connection. 4. Open the cock (1). (The meter pointer will turn clockwise.) 5. Adjust the air pressure. NOTE: Turn the cock (1) gently to open it.
3. INSTALLATION 3-17. Installing the eye guard CAUTION Attach all safety devices before using the sewing machine. If the machine is used without these devices attached, injury may result. (1) Eye guard assembly (2) Plain washers [2 pcs.] (3) Screws [2 pcs.] 0377B 3-18. Setting the scrap holder for the knife Scraps that have been cut by the knife will come out of the venturi tube (1), so place the venturi tube (1) into a trash can or similar to catch the scraps.
3. INSTALLATION 3-19. Installing and removing the work clamp plates 0386B 1. Turn the upper shaft pulley (1) forward to align the mating mark (A) on the pulley with the notch (B) in the machine head. * The needle will be set to the needle up stop position. 2. Move the feed base (2) forward. 0387B 3. Push the left and right plate pressers (3) in the directions of the arrows (toward the outside). 4.
3. INSTALLATION 3-20. Lubrication CAUTION Turn off the power switch before carrying out this operation. If this is not done, the machine may operate if the start switch is pressed by mistake, which could result in serious injury. Be sure to wear protective goggles and gloves when handling the lubricating oil, so that it does not get into your eyes or onto your skin. If care is not taken, inflammation can result. Furthermore, do not drink the lubricating oil. Diarrhea or vomiting may result.
3. INSTALLATION 3-20-2. Lubrication • When using the sewing machine for the first time, and also after long periods of non-use, lubricate the sewing machine in the places indicated by arrows in the illustration below. Oil may get onto the thread while lubrication is being carried out. Carry out a test sewing to ensure that your material does not get stained with oil. • 0383B 0384B 0382B 1. Loosen the four screws (1) and then remove the face plate (2). 2.
4. PREPARATION BEFORE SEWING 4. PREPARATION BEFORE SEWING 4-1. Installing the needle CAUTION Turn off the power switch before installing the needle. Otherwise the machine may operate if the start switch is pressed by mistake, which could result in serious injury. 0393B 0394B 1. Remove the work clamp plates. (Refer to “3-19. Installing and removing the work clamp plates” for details on removing the plates.) 2.
4. PREPARATION BEFORE SEWING 4-2. Threading the upper thread Thread the upper thread correctly as shown in the illustration below. * The illustration below shows the method when the cotton stand is installed on the left side. If the cotton stand is installed on the right side, the threading method will be different. Before threading, refer to “4-5. Threading the threads when the cotton stand is installed on the right side”.
4. PREPARATION BEFORE SEWING 4-3. Threading the lower thread When threading the lower thread, first remove the work clamp plates, and then thread the lower thread correctly as shown in the illustration below. (Refer to “3-19. Installing and removing the work clamp plates” for details on removing the work clamp plates.) * The illustration below shows the method when the cotton stand is installed on the left side. If the cotton stand is installed on the right side, the threading method will be different.
4. PREPARATION BEFORE SEWING 4-4. Threading the gimp When threading the gimp, first remove the work clamp plates, and then thread the gimp correctly as shown in the illustration below. Once threading has been completed, install the work clamp plates. (Refer to “3-19. Installing and removing the work clamp plates”.) * The illustration below shows the method when the cotton stand is installed on the left side. If the cotton stand is installed on the right side, the threading method will be different.
4. PREPARATION BEFORE SEWING 4-5. Threading the threads when the cotton stand is installed on the right side When the cotton stand is installed on the right side, thread the threads through the parts shown inside the dotted lines below. The parts outside the dotted lines should be threaded in the same way as when the cotton stand is installed on the left side. Refer to “4-2” to “4-4” for details on threading each of the threads.
4. PREPARATION BEFORE SEWING 4-6. Setting the material Cloth guides (2) are attached to the left and right work clamp plates (1). The material can be set so that it is vertical and parallel to the sewing machine by aligning the edges of the material with the cloth guides (2). In addition, the width (sewing margin) between the edge (top edge) of the material and the sewing pattern can be adjusted by changing the installation positions of the cloth guides (2).
5. USING THE SEWING MACHINE (OPERATION PANEL: BASIC OPERATION) 5. USING THE SEWING MACHINE PANEL: BASIC OPERATION) (OPERATION 5-1. Name and function of each operation panel item 0406B (1) Power indicator Illuminates when the power is turned on. (2) CAUTION indicator Illuminates when an error occurs. (3) RESET key Press to reset errors, and to clear the production counter value. (4) AUTO key This key is used to start automatic mode. (5) AUTO indicator Illuminates during automatic mode.
5. USING THE SEWING MACHINE (OPERATION PANEL: BASIC OPERATION) 0406B (18) BEFORE key This key is used to set cutting operation to cutting before sewing. (19) BEFORE indicator Illuminates when cutting operation is set to cutting before sewing. (20) AFTER key This key is used to set cutting operation to cutting after sewing. (21) AFTER indicator Illuminates when cutting operation is set to cutting after sewing. (22) F key This key is used to display the help screen.
5. USING THE SEWING MACHINE (OPERATION PANEL: BASIC OPERATION) 5-2. Starting the sewing machine [The display examples are for a -01 specification sewing machine.] 1 Push the power switch (1) to the ON side. The power indicator (2) will illuminate and the contents of the panel display (3) will switch in the order shown below. 0407B 0261B *1 Displayed for approx.
5. USING THE SEWING MACHINE (OPERATION PANEL: BASIC OPERATION) 5-3. Program setting method It is recommended that you register patterns that are sewn frequently as programs. After programs have been registered, you can retrieve the desired sewing patterns simply by selecting a program number, which eliminates the need to set the pattern each time. • Normally up to 20 programs can be registered, and their contents can be changed at any time. The contents can be set by changing the parameters for each item.
5. USING THE SEWING MACHINE (OPERATION PANEL: BASIC OPERATION) 4 Select the parameter number (2) for the parameter that you would like to change. (Refer to “5-3-1. Parameter list”.) (2) 0413B 5 0316B Change the setting (3) for the parameter. (3) Flashes * * 0414B 6 The flashing display means that the setting has not yet been applied. You can make the initial setting appear in the display by pressing the RESET key. 0317B Apply the changed setting.
5. USING THE SEWING MACHINE (OPERATION PANEL: BASIC OPERATION) 5-3-1. Parameter list NOTE: It may not be possible to change some setting values or some settings may be invalid because of the settings for other parameters. No.
5. USING THE SEWING MACHINE (OPERATION PANEL: BASIC OPERATION) No. Setting Setting range Unit Initial value 09 No. of straight bartack stitches 5 - 18 stitches 1 7 stitches 10 No. of round bartack stitches 5 - 17 stitches 1 7 stitches 11 Eyelet pattern 1-6 (Once the knife has been replaced, check the knife number for the replacement knife and then select an appropriate eyelet pattern.) 1 2 12 Zigzag width adjustment -1.0 - 1.0 mm 0.1 0.
5. USING THE SEWING MACHINE (OPERATION PANEL: BASIC OPERATION) No. Setting Setting range Unit Initial value 17 X cutting position correction value -0.5 - 0.5 mm 0.05 0.0 mm 18 Y cutting position correction value -0.7 - 0.7 mm 0.05 0.0 mm 19 No. of tying stitches at the sewing start 0 - 2 stitches 1 0 stitches 20 No.
5. USING THE SEWING MACHINE (OPERATION PANEL: BASIC OPERATION) No. Setting Setting range 25 Taper bartack angle -5 - 5 26 Straight bartack width correction value 27 Unit Initial value 1 0 -1.0 - 0.0 mm 0.1 0.0 mm Straight bartack overlap amount 0.0 - 2.0 mm 0.1 1.0 mm 28 Straight bartack X position alignment -1.0 - 1.0 mm 0.1 0.0 mm 29 Straight bartack angle correction value -3 - 1 1 0 30 Spare (For future version upgrades) 31 Spare (For future version upgrades) 32 No.
5. USING THE SEWING MACHINE (OPERATION PANEL: BASIC OPERATION) No. Setting Setting range Unit Initial value 34 Circular stitch knife size 2 - 5 mm 1 2 35 No. of circular stitch stitches 8 - 100 stitches 1 20 36 No.
5. USING THE SEWING MACHINE (OPERATION PANEL: BASIC OPERATION) 5-4. Checking the sewing pattern in test mode Test mode can be used to make only the feed base move in the same way as during normal sewing, but with the upper shaft stopped. This mode is useful for checking the positions of the needle and the work clamps. 1 Switch the mode to test mode. (2) (1) (4) (3) The sewing shape (1), program number (2), total number of stitches (3) and number of remaining stitches (4) will appear in the display.
5. USING THE SEWING MACHINE (OPERATION PANEL: BASIC OPERATION) 6 [If you would like to pause test feeding and return the feed base to the material setting position] Press the STOP switch (7) and then press the RESET key. 0422B [If you would like to return the feed base to the previous sewing position during test feeding] 0423B 0231B (4) (The feed base will move backward by 2 stitches each time.) The number of remaining stitches (4) on the display will increase by 2 each time.
5. USING THE SEWING MACHINE (OPERATION PANEL: BASIC OPERATION) 5-5. Switching cutting operation No cutting Cutting operations are not carried out. When “No cutting” is selected, the cutting before sewing indicator and the cutting after sewing indicator will both switch off. Cutting before sewing Sewing is carried out after cutting has been carried out. When cutting before sewing is selected, the cutting before sewing indicator illuminates.
5. USING THE SEWING MACHINE (OPERATION PANEL: BASIC OPERATION) 5-6. Changing the material setting position The feed base can be moved forward from the standard material setting position. This can make it easier to set the material in place. Cycle time will be reduced with this setting, particularly if cutting after sewing is selected. [To move the feed base forward] Press the FRONT/BACK key during the standby condition in automatic mode, test mode or manual mode.
5. USING THE SEWING MACHINE (OPERATION PANEL: BASIC OPERATION) 5-7. Using threading mode This is used to thread the upper thread. (Refer to “4-2. Threading the upper thread” for details on using the threader.) When the sewing machine switches to threading mode, the needle bar (θ feed) turns 180 degrees, and then the energization of the X, Y and θ feed motors is stopped. This allows the needle bar and feed base to move freely, in order to make threading of the upper thread easier.
6. USING THE SEWING MACHINE (SEWING OPERATION) 6. USING THE SEWING MACHINE (SEWING OPERATION) CAUTION Turn off the power switch before carrying out the following operations. If this is not done, the machine may operate if the start switch is pressed by mistake, which could result in serious injury. • When replacing the needle • When not using the sewing machine and when leaving the sewing machine unattended Do not touch any of the moving parts or press any objects against the sewing machine while sewing.
6. USING THE SEWING MACHINE (SEWING OPERATION) 5 Press the start switch (6). Sewing will then start. * When sewing is finished, the work clamps will be raised. In addition, the production counter value appearing in the display will increase by 1. 0420B 6 To repeat the sewing operation, repeat steps 4 and 5 above. 6-2. Using the STOP switch 6-2-1. Pausing sewing during automatic sewing The STOP switch is used to stop the sewing machine if a problem occurs such as a thread breakage.
6. USING THE SEWING MACHINE (SEWING OPERATION) 1 Press the RESET key. (The display will change alternately.) The buzzer will stop sounding. 0437B 2 Eliminate the cause of the problem. 3 Press the * 0438B If a problem such as an upper thread breakage has occurred, you can press the THREAD key to switch to threading mode. key once. 0423B 4 Press the 0482B and keys to determine the position to resume sewing.
6. USING THE SEWING MACHINE (SEWING OPERATION) 6-2-2. Canceling manual sewing or test feeding Press the STOP switch (1) while manual sewing or test feeding is being carried out. 0436B The buzzer will sound. 0320B Press the RESET key. • • 0437B The buzzer will stop sounding. After the home positions are detected, the needle bar and feed base will move to the material setting position.
6. USING THE SEWING MACHINE (SEWING OPERATION) 6-3. Adjusting the thread tension The thread tension needs to be adjusted in accordance with the articles being sewn. [Reference thread tensions] Material Woollen material (2 layers) + padding Denim (3 layers) Thread used #30 synthetic thread #50 spun thread DO x 558 Nm90 DO x 558 Nm110 Upper thread tension (N) 0.6 1.0 Lower thread tension (N) 0.3 0.3 Thread take-up spring tension (N) 0.05 0.
6. USING THE SEWING MACHINE (SEWING OPERATION) Tension adjustment 1. Loosen the screw (4), and then turn the L thread take-up spring support (5) to adjust the tension. * When turned in the direction of the arrow, the tension of the thread take-up spring (6) will increase. 2. Once adjustment is complete, tighten the screw (4). Stroke adjustment 1. Loosen the screw (7), and then turn the L thread take-up spring guide (8) to adjust the stroke.
7. USING THE SEWING MACHINE (OPERATION PANEL: ADVENCED OPERATION) 7. USING THE SEWING MACHINE (OPERATION PANEL: ADVANCED OPERATION) 7-1. Using cycle programs The sewing patterns which have been registered in independent programs (P01 - P20) can be combined to register “cycle programs” so that they can be run continuously. When sewing the sewing patterns in a certain order, it can be useful to record them in a cycle program beforehand. Cycle programs Max. no. of recordable programs 9 (C1 - C9) Max. no.
7. USING THE SEWING MACHINE (OPERATION PANEL: ADVENCED OPERATION) 3 0263B Switch to cycle program mode. (1) (2) (3) (1) Cycle program number (2) Step number (3) Contents (program number, cutting operation) set for the selected step number 1 4 0237B Set the contents (3) for step 1 to “P01”. (3) * * 0414B 5 The “_” in “P” means that cutting operation is set to be on. The “--” in “P--” means that no setting has been made. When “--” is set, the contents for all subsequent steps are cleared.
7. USING THE SEWING MACHINE (OPERATION PANEL: ADVENCED OPERATION) 10 Set the step number (2) to “4”. (2) 0240B 0413B 11 Set the contents (3) for step 4 to “P03”. (3) 0414B 12 0598B Press the BEFORE key or the AFTER key to change the “P” to “P”. (This sets “no cutting operation”.) or (3) 0432B 13 0510B Apply the changed contents. 0415B 14 Press one of the following keys to exit cycle program mode.
7. USING THE SEWING MACHINE (OPERATION PANEL: ADVENCED OPERATION) 7-2. Setting memory switches The functions of the operation panel include some that are set by memory switches at the time of shipment from the factory. You can change the settings for these memory switches if required. The settings for the memory switches are valid for all programs. Refer to “7-2-1. List of memory switch settings” for details on memory switch Nos. and settings.
7. USING THE SEWING MACHINE (OPERATION PANEL: ADVENCED OPERATION) 7-2-1. List of memory switch settings No. Setting items Default value Setting range 2 001 Switching between 1-pedal and 2-pedal operation 1: 1-pedal 1: When the start switch is pressed, the work clamps are lowered and the operation sewing machine starts operating. 2: 2-pedal 2: When the work clamp switch is pressed, the work clamps are lowered. operation After that, the sewing machine starts operating when the start switch is pressed.
7. USING THE SEWING MACHINE (OPERATION PANEL: ADVENCED OPERATION) 7-3. Resetting the data (initialization) If the sewing machine stops operating normally, the cause may be that an incorrect memory setting may have been made by means of memory switches, for instance. In such cases, it may be possible to restore normal operation by following the steps given below to initialize the memory setting data. 1 The mode will switch to initialization mode.
7. USING THE SEWING MACHINE (OPERATION PANEL: ADVENCED OPERATION) Initialization level and settings that are reset or initialized. Level 1 Level 2 Level 3 Program settings (Parameter) Default value - Default value Cycle programs Reset - Reset Memory switch - Default value Default value Program No. - - 1 Parameter No. - - 1 Production counter - - 0 Operating mode - - Program Material setting position - - Set back Cutting operation - - OFF 7-4.
7. USING THE SEWING MACHINE (OPERATION PANEL: ADVENCED OPERATION) 7-5. Displaying the help screen The help screen is a screen which uses graphics to show how to switch the sewing machine to data initialization mode, memory switch setting mode and production counter setting mode. (Refer to the table below for details.) 1 Press the F key while the sewing machine is in standby during automatic mode, test mode, manual mode, program mode or cycle program mode.
7. USING THE SEWING MACHINE (OPERATION PANEL: ADVENCED OPERATION) 7-6. Manual sewing (manual mode) CAUTION The hammer may operate during manual mode, so do not put your hands near the hammer at this time. If care is not taken, injury may result. You can turn the upper shaft pulley by hand to move the feed base one stitch at a time. This is useful to do when adjusting the spreader timing. (Refer to “9-10. Adjusting the spreader timing”.) 1 (3) Switch the mode to manual mode.
7. USING THE SEWING MACHINE (OPERATION PANEL: ADVENCED OPERATION) 5 0226B Turn the upper shaft pulley by hand. (5) The feed base will move to the next sewing start position in accordance with the rotation of the upper shaft. • The number of remaining stitches (5) in the display will decrease by 1 each time the upper shaft pulley is rotated half a turn (when the needle bar moves up and down once).
7. USING THE SEWING MACHINE (OPERATION PANEL: ADVENCED OPERATION) 7-7. Switching the sewing mode while sewing is in progress If a stop (or interruption) has been cleared during automatic sewing, manual sewing or test mode, you can switch the mode to the desired mode by pressing the corresponding mode key. The sewing mode changes as shown in the illustration each time a key is pressed.
8. CLEANING AND INSPECTION 8. CLEANING AND INSPECTION CAUTION Turn off the power switch before carrying out this operation. 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 result in serious injury. Be sure to wear protective goggles and gloves when handling the lubricating oil, so that it does not get into your eyes or onto your skin. If care is not taken, inflammation can result.
8. CLEANING AND INSPECTION 8-1-2. Checking the air filter 1. Close the air cock (1). 2. Press the button (2) to release the air and water that have collected inside the drain. 3. Once the air and water have been released, open the air cock (1). Close Open 0455B 8-1-3. Checking the needle Always check that the tip of the needle is not broken and also the needle is not bent before starting sewing. 0456B 8-2.
8. CLEANING AND INSPECTION 8-3. Cleaning and inspection as required This section describes the cleaning procedures that should be carried out not regularly but when required. 8-3-1. Draining lubricating oil 1. When the oiler (1) has filled with oil, turn the oiler (1) to remove it, and drain the oil. 2. After draining the oil, return the oiler (1) to its original position. NOTE: Dispose of waste oil correctly in accordance with local regulations.
9. STANDARD ADJUSTMENTS 9. STANDARD ADJUSTMENTS CAUTION Maintenance and inspection of the sewing machine should only be carried out by a qualified technician. Ask your Brother dealer or a qualified electrician to carry out any maintenance and inspection of the electrical system. Turn off the power switch and disconnect the power cord at the following times. If this is not done, the sewing machine may operate if the start switch is pressed by mistake, which could result in serious injury.
9. STANDARD ADJUSTMENTS Looper height 0483B Adjust so that the positions of the eye looper (8) and the looper R (9) are as follows. • The clearance between the eye looper (8) and the spreader L (1) should be equal to the thickness of the lower thread (looper thread). • The clearance between the looper R (9) and the spreader R (2) should be as small as possible (so that the two parts do not touch). 1.
9. STANDARD ADJUSTMENTS 9-3. Adjusting the zigzag base line position Preparing a short customized needle Prepare a short needle as described below in order to make very small holes in a piece of paper while checking the needle drop position. 1. Use a grinder or similar to grind the tip of the currently-used needle until the length of the needle is 15 mm. 2. Sharpen the tip of the needle. Sharpen tip 0563B 3. Place a piece of paper (1) underneath the work clamps. 4.
9. STANDARD ADJUSTMENTS Adjusting the zigzag base line position The zigzag base line is on the inside of the zigzag. If you change the zigzag width, only the outer needle drop position will change, and the zigzag base line (inner base line) will not change. 1. Move the needle bar guard block (θ) to the home position. * The home position for the needle bar guard block (θ) is when the bed index mark (1) and the looper base index mark (2) are aligned. 0329B 2. Install the short customized needle (3).
9. STANDARD ADJUSTMENTS 9. Remove the face plate (8), and then loosen the socket bolt (9). 0476B 10. Open the cover (10), and then remove the cap (11). 11. Insert a flat-tipped screwdriver into the hole and turn the zigzag eccentric pin (12) to adjust the zigzag base line position. 12. Tighten the socket bolt (9). 13. Repeat steps 4 - 12 until the inner zigzag base line is aligned correctly. 14.
9. STANDARD ADJUSTMENTS 9-4. Adjusting the needle and looper timing NOTE: The needle bar moves through two needle drop cycles for each single turn of the upper shaft pulley. The needle drop movement toward the left side (knife cutting side) is called the “inside sewing position”, and the needle drop movement toward the right is called the “outside sewing position”.
9. STANDARD ADJUSTMENTS 9-5. Adjusting the looper stroke The standard looper stroke is 2.7 mm. (It may be preferable to change this depending on the material and thread.) * Carry out the adjustment in “9-4. Adjusting the needle and looper timing” before making this adjustment. 0489B 1. Turn the upper shaft pulley (1) to set the needle bar to the needle drop position at the inside sewing position. 2.
9. STANDARD ADJUSTMENTS 9-6. Adjusting the height of the needle bar The standard height for the needle bar is 2.5 mm. (It may be preferable to change this depending on the material and thread.) 0497B 0450B 0328B 0496B 1. Remove the face plate. 2. Turn the upper shaft pulley until the tip of the eye looper (1) is aligned with the top edge of the needle hole in the needle center (2) when the needle is at the inside sewing position. 3. Loosen the two screws (4) of the top and bottom needle bar clamps (3).
9. STANDARD ADJUSTMENTS 9-7. Adjusting the clearance between the loopers and needle If the needle count has been changed, always be sure to check the clearance between the needle and the loopers, and adjust the clearances if necessary. These adjustments should be made for both the inside sewing position and outside sewing position. 0.01 - 0.
9. STANDARD ADJUSTMENTS 9-9. Adjusting the spreader installation positions 0494B 1. Loosen the set screw (4) and adjust spreader stopper L (5) so that the relative positions of the U-shaped part at the tip of spreader L (1) and the lower thread guide hole (3) in the eye looper (2) are as shown in the illustration below. 2. Once adjustment is complete, tighten the set screw (4). 3.
9. STANDARD ADJUSTMENTS 9-10. Adjusting the spreader timing Spreader R (1) (at inside sewing position) an spreader L (at outside sewing position) must touch the spreader stoppers (3) and (4) respectively and stop moving immediately before the needle bar reaches its lowest position. * Adjustment can be carried out more easily if it is done in manual mode. 0500B 1. 2. 3. 4. 0501B Tilt back the machine head. Loosen the two screws (2), and then loose the set screw (6). Turn the eccentric pin (7) to adjust.
9. STANDARD ADJUSTMENTS 9-11. Adjusting the height of the throat plate <-00 and -01 specifications> <-02 specifications> (Seen from the front) (Seen at an angle from above-right) 0560B 0561B 1. 2. 3. 4. 5. 6. Remove the right-side work clamp plate (1). Turn the looper base (2) so that it faces as shown in the illustration. Loosen the screw (3), and then move gimp thread guide C (5) to a position where it will not obstruct turning of the screw (4). Loosen the screw (4) by about 10 turns.
9. STANDARD ADJUSTMENTS 9-12. Changing the cutting length (Replacing the hammer) The cutting length is determined by the length of the hammer. File or replace the hammer in order to change the cutting length. A 0463B 1. Loosen the knob screw (1), and then remove the hammer (2). 2. [If grinding the hammer (Refer to Figure A)] Use a grinder to grind section of the hammer so that cutting length + 1.5 mm = . 3.
9. STANDARD ADJUSTMENTS 9-13. Adjusting the cutting surface of the hammer 1. Remove the hammer. (Refer to the previous page for instructions on removing the hammer.) 2. Check the cutting surface of the hammer. Refer to the illustration at left, and if the cutting surface looks like (b) (d), file the cutting surface so that the knife incision is made evenly on the cutting surface.
9. STANDARD ADJUSTMENTS 9-13-2. Adjusting the contact between the knife and the hammer The knife incision can be seen more clearly if the cutting surface of the hammer is filled over with a marker pen or similar. 1. Operate the hammer three times with the knife making a mark on it each time. 2. If the knife incision is not uniform, file the hammer. (Refer to the previous page for details on filing the hammer.) 3. Repeat steps 1 and 2 until the knife incisions are uniform.
9. STANDARD ADJUSTMENTS 9-15. Making the cutter driving shaft and driving shaft presser move together The cutter driving shaft (2) and driving shaft presser (3) are linked by an extension spring (4) so that the hammer bracket (1) can be positioned by being pushed down by hand when aligning the needle with an eyelet buttonhole that has already been made in the material in order to resume sewing.
9. STANDARD ADJUSTMENTS 9-16. Replacing the knife and adjusting its position 9-16-1. Replacing the knife CAUTION Do not operate the sewing machine while a knife and hammer with numbers that are different from those which have been set in programs. If this is not observed, damage to sewing machine parts or the needle or serious injury may occur. 0467B 0466B 0468B 1.
9. STANDARD ADJUSTMENTS 9-16-2. Making fine adjustments to the knife position Adjust the knife position so that it cuts the material cleanly at the inside sewing position and around the eyelet. * Before carrying out this adjustment, check that the procedure in “9-3. Adjusting the zigzag base line position” has been completed correctly. * The knife position can be adjusted independently in the forward/back direction and tilt direction. 1. Install the short customized needle (1).
9. STANDARD ADJUSTMENTS 0557B 0556B 8. Loosen the socket bolt (4), and move the knife position forward or back to adjust. 9. Once the knife position has been determined, securely tighten the socket bolt (4). 10. Loosen the screw (5), push the block stopper plate (6) against the knife, and then tighten the screw (5).
9. STANDARD ADJUSTMENTS NOTE: Relationship between needle drop position and eyelet pattern at the eyelet When switching between cutting before sewing or no cutting 0559B Eyelet pattern a x b and cutting after sewing, the needle drop position at the inside sewing position will change automatically in accordance with the eyelet pattern as shown in the illustration. Knife No.
9. STANDARD ADJUSTMENTS 9-18. Adjusting the work clamp lift amounts Adjust the work clamp lift amount to one of the values given below. : 12 mm : 16 mm * The work clamp lift amount is the value which includes the play in crank lever B (1) and the clamp lever (2). * Carry out adjustment for both the left and right work clamps. (The following describes how to adjust the lift amount for the right-side work clamp.) 1.
9. STANDARD ADJUSTMENTS 9-19. Adjusting the work clamp positions The positions of the work clamps relative to the needle plate can be adjusted forward, back and sideways. * Adjust the left and right work clamps so that they are both positioned at an equal distance from the needle drop position. (The following describes how to adjust the position of the right-side work clamp.) (Seen from directly to the right) 0511B 1.
9. STANDARD ADJUSTMENTS 9-20. Adjusting the positions of the work clamp plates Adjust the positions of the work clamp plates (3) so that the throat plate (1) and needle plates (2) do not touch during sewing. The standard adjustment is when there is a gap of 0.8 mm between the throat plate (1) and the needle plates (2) (when the cutting space is set to "0"). * Carry out adjustment for both the left and right work clamps.
9. STANDARD ADJUSTMENTS 9-21. Adjusting the cloth opening amounts Adjust so that the opening amounts for the left and right work clamp plates (1) are equal. * The cloth opening amounts should always be 0.8 mm or more on each side. 0515B 1. Press the TEST key (2) to turn on test mode, and then start test operation. (Refer to “5-4. Checking the sewing pattern in test mode”.) (When using a 2-pedal foot switch) 2. Depress the start switch (3).
9. STANDARD ADJUSTMENTS 0518B 8. Loosen the screw (4). 9. Insert a screwdriver into the notch in the side of the feed base, and turn the adjustment screw (5) to adjust. 10. After tightening the screw (4), measure the opening amounts once more. 11. Repeat steps 2 - 10 until the left and right cloth opening amounts are equal to each other. 9-22.
9. STANDARD ADJUSTMENTS 9-23. Adjusting the lower thread feeding amount <-01 specifications only> It is necessary for enough tension to be applied to the lower thread during the time from when the upper thread is picked up by the eye looper at the first stitch until spreader L finishes opening, without the lower thread being pulled out by the thread nipper, so that the first stitch can be sewn correctly at the sewing start. 0399B 1.
9. STANDARD ADJUSTMENTS 9-24-2. Adjusting the upper movable knife The upper movable knife (1) is adjusted so that only the upper thread that is in front of looper L (2) is cut. If two of the upper thread loops (front and back) are cut, the upper thread trailing length will become too short and skipped stitches may occur at the sewing start. * If this adjustment is carried out in manual mode, the upper thread trimming operation can be checked step by step, which will make adjustment easier. 1.
9. STANDARD ADJUSTMENTS 9-24-3. Adjusting the position of the thread trimmer lever bracket The position of the needle must be adjusted so that it does not obstruct the upper movable knife when it is at the maximum zigzag width for the outside sewing position. 0545B 1. Loosen the nut (1). 2. Turn the screw (2) to adjust in the illustration to 12 mm. 3.
9. STANDARD ADJUSTMENTS 9-25. Replacing and adjusting the movable knife and fixed knife (for the lower thread and gimp) <-01 specifications> 9-25-1. Replacing the movable knife and fixed knife 0519B 1. Remove the two screws (1), and then remove work clamp plate U (2). 2. Remove the three screws (3), and then remove the movable knife (4). 3. Install the new movable knife, and then tighten the three screws (3). 4.
9. STANDARD ADJUSTMENTS 9-25-2. Adjusting the cutting pressure Adjust the cutting pressure to a suitable pressure so that the threads are trimmed cleanly. NOTE: Do not apply excessive pressure. Excessive pressure will cause the knives to become worn or damaged. 0521B 1. Push the thread trimmer arm (1) as far as it will go in the direction of the arrow [A]. 2. Loosen the two screws (2). 3.
9. STANDARD ADJUSTMENTS 9-25-4. Adjusting the thread nipper assembly and opener The lower thread must pass through thread nipper D (1) and the gimp thread must pass through thread nipper U (2). Therefore, check that the thread nipper assembly (3) is installed in the correct position and that the thread nipper opener (4) moves correctly. NOTE: The lower thread must be securely held by thread nipper D (1) at the sewing start.
9. STANDARD ADJUSTMENTS 2. The lower thread must go over the projection (9) on thread nipper M (8) and be held securely. To make sure this happens, check that the operations in (a), (b) and (c) below are all correct. 0552B (a) Thread nipper D (1) should open by 0.3 mm or more when the thread nipper opener (4) pushes down on the opener pin (10). 0553B (b) Thread nipper D (1) should close immediately before the thread is trimmed. 0.
9. STANDARD ADJUSTMENTS 9-25-5. Adjusting the thread handler The lower thread and gimp are securely separated and guided by the thread handler (1), after which the lower thread needs to go smoothly into thread nipper D (2), while the gimp needs to go smoothly into thread nipper U (3). NOTE: Principle of the thread handler When the thread trimmer arm operates, the throat plate (4) turns 45 degrees.
9. STANDARD ADJUSTMENTS 9-26. Replacing and adjusting the movable knife and fixed knife (for the lower thread and gimp) <-02 specifications> 9-26-1. Replacing the movable knife and fixed knife 1. Remove the two screws (1), and then remove work clamp plate U (2). 2. Remove the nut (3). 3. Remove the shoulder screw (4), and then remove movable knife L (5) and movable knife R (6). 4. Install the new knives, and then install the shoulder screw (4). 5.
9. STANDARD ADJUSTMENTS 9-26-3. Adjusting the movable knife installation position (Viewed from directly above) (Viewed from the side at position B) (Viewed from underneath) 0528B 1. Remove work clamp plate U. (Refer to “9-26-1. Replacing the movable knife and fixed knife”.) 2. Loosen the screw (1). 3. Turn the movable knife driving plate (4) so that the tip [A] of movable knife R (3) and the corner [C] of the needle plate (2) are aligned. 4.
9. STANDARD ADJUSTMENTS 9-26-4. Adjusting the position of the sub clamp Trimming of the lower thread and gimp is carried out when the work clamps rise. The sub clamp ensures that the material does not move during thread trimming, in order to maintain a stable thread length after trimming. 1. Loosen the socket bolt (1). 2. Adjust the installation position of the sub clamp wrist (4) with respect to the article being sewn so that the button clamp (2) moves above the needle plate (3). 3.
9. STANDARD ADJUSTMENTS 9-27. Adjusting the gimp trailing length <-02 specifications only> The gimp is pressed against the material by means of the twisting of the first 2 - 3 stitches at the sewing start, and is then pulled out continuously. Because of this, if strong tension is applied to the gimp when the feed base is at the sewing position and the gimp trailing length ( in the illustration below) becomes extremely short, the gimp may be pulled out of the stitches.
9. STANDARD ADJUSTMENTS 9-28. Adjusting the position of the lower thread presser <-02 specifications only> Adjust the lower thread presser (1) so that it securely holds the lower thread. 0549B 0550B 0551B (Seen from the front) (Seen from directly above) (Seen from directly to the right) 1. Loosen the screw (4) and move the lower thread presser (1) up or down to adjust so that its top projects approximately 0.5 mm from the top of the thread groove (3) in the throat plate (2). 2.
10. ERROR CODES 10. ERROR CODES DANGER Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet before opening the cover of the control box. Touching areas where high voltages are present can result in severe injury. If a problem should occur with the sewing machine, the buzzer will sound and an error code and error message will appear in the display. Follow the remedy procedure to eliminate the cause of the problem.
10. ERROR CODES Upper shaft motor-related errors Items with a “*” in the “Page” column should only be checked by a qualified technician. Code Cause Remedy Page E110 Needle up stop position error Turn the upper shaft pulley until the point where the error display disappears. 38 E111 Needle up stop position error Turn off the power, and check the connection of the synchronizer connector at the main P.C. board. 20* E120 Needle drop signal could not be detected.
10. ERROR CODES Feed mechanism-related errors Items with a “*” in the “Page” column should only be checked by a qualified technician. Code Cause Remedy E200 X-feed motor home position cannot be detected. Problem with X-feed motor or poor X home position sensor connection. Turn off the power, and then check that the X-feed motor connector is connected at the PMD P.C. board and that the X pulse motor encoder connector is connected at the main P.C. board. E201 X-feed motor stopped due to a problem.
10. ERROR CODES Communication and memory-related errors Items with a “*” in the “Page” column should only be checked by a qualified technician. For items with “**” appearing in the “Page” column, ask the place of purchase for advice. Code Cause Remedy Page Connection error detected between the main P.C. board and power supply motor P.C. board when the power was turned on. Turn off the power, and then check that connector P17 on the main P.C. board and connector P6 on the power supply motor P.C.
10. ERROR CODES Device-related errors Items with a “*” in the “Page” column should only be checked by a qualified technician. Code Cause Remedy Page E630 Lower thread trimmer does not operate, or lower thread trimming sensor is faulty. Turn off the power, and then check that the valve harness connector and sensor connector are inserted at the main P.C. board. 19* E650 Hammer is lowered, or hammer position sensor is faulty.
11. TROUBLESHOOTING 11. TROUBLESHOOTING • • • If there is a problem with operation, first check that the threads are correctly threaded and that the needle is correctly installed. Please check the following points before calling for repairs or service. If the following remedies do not fix the problem, turn off the power switch and consult a qualified technician or the place of purchase. CAUTION Turn off the power switch and disconnect the power cord before carrying out troubleshooting.
11. TROUBLESHOOTING Problem Broken needle Upper thread is not cut. Lower thread is not cut. Thread unravelling at sewing start Material is not being cut cleanly. Poor thread tightening 115 Cause Remedy Page Needle is bent. Replace with a new needle. Needle, looper and spreader adjustment is incorrect. Adjust correctly. Needle guard is covering the needle too far. Adjust the needle guard. 79 Needle is too thin. Select a needle that is suitable for the sewing conditions.
INSTRUCTION MANUAL http://www.brother.com/ 15-1, Naeshiro-cho, Mizuho-ku, Nagoya 467-8561, Japan. Phone: 81-52-824-2177 © 2006 Brother Industries, Ltd. All Rights Reserved. RH-9820 SA7887-001 E 2006.07.
