ELECTRONIC EYELET BUTTON HOLER ENGLISH RH-981A
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 thread take-up lever, and consequently there is always a danger of injury that can be caused by these parts.
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 face plate 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 high-frequency welders. Sources of strong electrical noise may cause problems with correct operation.
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. 2 1 3 4 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. Safety devices Eye guard Finger guard Needle bar guard Belt cover, etc.
CONTENTS 1. NAMES OF EACH PART ................................ 1 5. CORRECT USE ................................................. 27 2. SPECIFICATIONS .............................................. 2 5-1. Data initialization............................................... 27 5-2. Changing the lower thread and gimp trimming .................................................. 27 2-1. Specifications ...................................................... 2-2. Sewing shape ....................................
9-5. Adjusting the clearance between the looper and needle ............................................ 58 9-6. Adjusting the needle guard.............................. 59 9-7. Adjusting the spreader mounting positions ........ 59 9-8. Adjusting the spreader timing.......................... 60 9-9. Adjusting the needle racking width (stitch width)...................................................... 60 9-10.Changing the knife cutting length (Replacing the hammer) .................................. 61 9-11.
1. NAMES OF EACH PART 1.
2. SPECIFICATIONS 2. SPECIFICATIONS 2-1. Specifications Lower thread trimmer Fly indexer Long type Short type -00 -01 -02 -52 * -02 and -52 specifications are further divided into L1 - L7 specifications in accordance with the stitch length. Please be sure to specify the stitch length when ordering.
2. SPECIFICATIONS 2-2. Sewing shape Eyelet buttonhole Without bar tacking With taper Straight buttonhole With straight bar tacking (*) Without bar tacking With taper With straight bar tacking (*) * The DIP switch settings must be changed. (Refer to page 74.) 2-3.
2. SPECIFICATIONS 2-5. Replacement parts list for specification changes The sewing machine can be changed to any one of L1 - L7 for -02 and -52 specifications by replacing the specified parts with the appropriate parts given below.
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 more than 87 kg. The installation should be carried out by two or more people. Do not connect the power cord until installation is complete, otherwise the machine may operate if the start switch is pressed by mistake, which could result in injury.
3. INSTALLATION 3-2. Installing the motor 3124Q 1. Insert the four nuts (1) into the work table. 2. Turn the work table upside down to make it easier to install the motor (2). 3. Align the holder plate (3) and the motor plate (4) with the nuts (1), and then install them with the four washers (5), the four spring washers (6) and the four bolts (7). 4.
3. INSTALLATION 3-3. Installing the motor pulley 3126Q 1. Place the motor pulley (1) onto the shaft of the motor (2) so that the key grooves are aligned, and then tighten the set screws (3) so that the center of the V groove in the motor pulley (1) is aligned as closely as possible with the center of the belt hole in the power table. 2. Install the motor rear cover support (4) with the two flat washers (5) and the two screws (6).
3. INSTALLATION 3-5. Installing the machine head 2981Q 2980Q 1. Insert the accessory bed base cushions A (1) into the bed base, and then place the machine head on top of the work table. Note: When placing the machine head on top of the work table, have two or more people there to hold the handles and rear of the head as indicated in the illustration. 2.
3. INSTALLATION Raising the machine head When machine head is lowered When machine head is raised 2983Q 2984Q 1. While holding the handles of the machine head (1) with both hands, gently raise the machine head. Note: Be sure to turn the power supply off before raising the machine head. 2. If you wish to keep the machine head in the raised position, insert the head support lever (2) securely into the hinge lever support shaft (3).
3. INSTALLATION 3-6. Installing the oil container 2986Q 1. Install the oil draining cap support (2) to the base of the bed base (1) with the two screws (3). 2. Screw the oil container (4) into the oil draining cap support (2). 3. Push the oil draining spring pin (5) into the bed base (1) until the pin is flush with the surface of the base. 4. Lower the machine head. (Refer to "Lowering the machine head" on previous page.) 2985Q 3-7.
3. INSTALLATION 3-8. Tightening the V-belt Approx.10 mm 2991Q 2990Q 1. Open the rear cover. 2. Pass the V-belt (1) through the base of the bed base and through the hole in the work table. 3. Place the V-belt (1) onto the motor pulley (2). 4. Check that there is approximately 10 mm of deflection in the V-belt (1) when it is pushed in the middle with a load of 10 N. If the tightness needs adjusting, loosen the two nuts (3) and move the motor up or down. After adjusting, tighten the nuts (3).
3. INSTALLATION 3-9. Installing the spool stand 1. To assemble the spool stand (1), follow the instructions in the manual that came with the spool stand (1). 2. Secure the spool stand (1) to the rear right corner of the work table with the washer and nut (2). 2989Q 3-10. Installing the hand switch Install the hand switch (1) with the two screws (2). 3129Q 3-11. Installing the air unit and the valve unit 2387Q Valve unit Air unit Installation position 2992Q 1.
3. INSTALLATION 3-12. Connecting the wiring 2994Q 1. Pass the cable and air tube which are coming out of the belt cover (1) and the machine head (2) through the cable hole (3) in the work table. 2. Pass the cables and air tube which are coming out of the feed bracket (4) and the left side of the bed base (5) and the cable for the hand switch (6) through the cable hole (7) in the work table. Note: Leave enough looseness in the cables so that they will not be pulled when the machine head is tilted back.
3. INSTALLATION 3-12-1. Connections inside the control box 2997Q 1. Open the rear cover (1) of the control box. 2. Pass the cables through the holes (2) and (3) in the side of the control box. 3. Loosen the screw (5), and then connect the three ground cables (4) that are coming from the machine head. 4. Securely insert each of the connectors (6) - (14) as indicated below. Machine head (Connection indications) * This is indicated on the P.C. board.
3. INSTALLATION 3-12-2. Connecting the motor cables 1. Remove the screws (1), and then open the terminal block cover (2) of the motor. 2. Loosen the screw (3) and connect the ground cable (4) for the motor. 3. Loosen the screw (5) and connect the ground cable (6) from the control box. 4. Connect the cables so that the cable marks (U, V, W) match the symbols on the screw terminals. 5. Close the cover (2). Note: Be careful not to clamp the cables when closing the cover. 3000Q 3-12-3.
3. INSTALLATION 3-12-4. Securing the cables 3132Q Note: Leave enough looseness in the cables so that they will not be pulled when the machine head is tilted back. 1. Pass the cable through the cable holder (1), and then secure the cable holder (1) to the underside of the work table with the screw. 2. Pass the air tube and the hand switch cable through the cable holder (2), and then secure the cable holder (2) to the underside of the work table with the screw. 3.
3. INSTALLATION 3-13. Installing the air tubes Connect the air tube from the compressor to the air unit underneath the work table. Open Closed 1. Turn the nut (1) at the end of the air tube, and then connect the tube to the valve (2). 2. Open the air cock (3) on the compressor. Check that there is no air leaking from the valve connection. 3. Open the cock (3) by turning it in the direction of the arrow. The meter needle will move clockwise. 4. Adjust the air pressure. 3005Q 3-13-1.
3. INSTALLATION 3-14. Connecting the power cord CAUTION Contact your Brother dealer or a qualified electrician for any electrical work that may need to be done. 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 3-15. Installing the programmer (sold separately) [Vertical] [Flat] 3010Q 3011Q 3012Q 1. Install the programmer support (2) to the work table with the two screws (1). 2. Insert the programmer connector (4) securely into the left side of the operation panel (3). 3-16. Installing the foot switch (option) Insert the connector (3) of the foot switch (2) into the control box connector (1).
3. INSTALLATION 3-17. Installing the indexer (option) 3-17-1. Installing the indexer main unit 3015Q 1. After disconnecting air tubes [20] and [21], insert the two plugs (3) into joints (1) and (2). In addition, remove parts (4), (5) and (6) indicated in the illustration. 2. Remove the screws (7) from feed bracket cover (L) (8), and then install feed base (L) (9). 3016Q 3. Remove the screws (10) from feed bracket cover (R) (11), and then install feed base (R) (12). 3017Q 4.
3. INSTALLATION 3-17-2. Installing the upper thread presser 3019Q 1. Loosen the screw (1), and then remove the thread guide (2). 2. Install the upper thread presser support (3) with the screw (1). * Adjust the height of the upper thread presser support (3) so that it presses against the upper thread presser plate (5) when the upper thread take-up lever (4) is lowered. 3020Q 3-17-3.
3. INSTALLATION 3-17-5. Connecting the connectors 3023Q 1. Insert the 3-pin connectors [8], [9] and [10] of the valve harness into the solenoid valves of the valve unit (1) so that the label numbers match. 2. Insert the 15-pin connector (2) into the connector of the indexer cord (3). 3. Open the rear cover (4) of the control box. 4. Insert the connector (5) of the indexer cord (3) in the position shown in the illustration. 5. Secure the cord with the cord clamp. 6.
3. INSTALLATION 3-17-6. Connecting the air tubes 0855Q Connect air tubes [50], [51], [52] and [53] to the places with the corresponding numbers on the valve unit. Label No. Solenoid valve type [50], [51] For cloth feed drive cylinder [52] For chucking cylinder [53] For holding cylinder 0856Q 3-17-7. Securing the air tubes and cables 3026Q 1. Remove the screw (length 8 mm) (1). 2. Secure the air tube (2) and cable (3) with the cord holder (4), screw (length 16 mm) (5) and washer (6).
3. INSTALLATION 3003Q Insert the indexer specification harness (1) into the control box connector (2). * If another specification harness has been inserted into this connector, first disconnect this harness and then insert the indexer specification harness (1).
4. LUBRICATION 4. LUBRICATION CAUTION Turn off the power switch before starting lubricating, otherwise the machine may operate if the start switch is pressed by mistake, which could result in injury. Be sure to wear protective goggles and gloves when handling the lubricating oil and grease, so that they do not get into your eyes or onto your skin, otherwise inflammation can result. Furthermore, do not drink the oil or eat the grease under any circumstances, as they can cause vomiting and diarrhoea.
4. LUBRICATION Oiling the looper, spreader and looper base 3031Q 3032Q 3030Q 1. Turn the upper shaft pulley (1) toward you until the mark on the pulley (A) is aligned with the notch in the pulley cover (2). 2. Move the feed bracket (3) toward you. 3. Turn the left and right plate pressers (4) in the directions indicated by the arrows. 4.
5. CORRECT USE 5. CORRECT USE 5-1. Data initialization When using the sewing machine for the first time, initialize the data by following the procedure below. 3036Q 1. While pressing the RESET key (1), turn on the power switch. * While the data is being initialized, all LEDs will illuminate and the buzzer will sound a series of short beeps. * All parameters, memory switches, cycle programs and the production counter will be initialized. 2.
5. CORRECT USE 5-3. 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 injury. 3039Q 3038Q Use only Schmetz DO x 558 Nm80 - Nm120 needles. 1. Raise the finger guard (1). 2. Loosen the screw (2), and then remove the needle (3). 3. Insert the new needle (3) as far as it will go so that the groove is facing toward you. 4. Securely tighten the screw (2). 5.
5. CORRECT USE 5-5. Threading the lower thread Remove the work clamp plates (refer to page 26), and then thread the lower thread as shown in the illustration below.
5. CORRECT USE 5-6. Threading the gimp Remove the work clamp plates (refer to page 26), and then thread the gimp as shown in the illustration below. Once threading is complete, replace the work clamp plates. <-00,-01> 0885Q 0884Q <-02,-52> Pass the gimp through the hole of the thread tension stud (1). Refer to “9-18. Adjusting the gimp length after trimming” (Page 67).
5. CORRECT USE 5-7. Setting the material <-00, -01, -02 specifications> 10 - 30 mm 3042Q 3043Q 1. Insert the material so that it touches the right and left cloth guides (1). 2. The sewing margin can be adjusted to within 10 - 30 mm. 3. Loosen the screws (2) at left and right and move the cloth guides (1) back and forth to adjust the sewing margin. <-52 specifications> 0892Q 9 - 21 mm for L1 - L4 9 - 11 mm for L5 - L7 3044Q 30 - 40 mm 1.
5. CORRECT USE Cloth setting position Left setting position Right setting position 0893Q 0894Q The sewing start position can be set to either the left setting position or the horizontal setting position. (Refer to page 73.) When set to the left setting position This is the normal setting position for the cloth. * After the last buttonhole is sewn, the cloth feed bar returns to the left setting position.
5. CORRECT USE 5-8. Setting the installation position for cloth feed plate (L) (-52 specifications) The installation position for cloth feed plate (L) can be set to one of four positions depending on the spacing between buttonholes and the number of buttonholes to be sewn. When the spacing between buttonholes and the number of buttonholes sewn have been changed, the installation position for cloth feed plate (L) should also be changed. Refer to the illustration and table below at this time.
5. CORRECT USE 5-9. Replacing the PROMs Refer to the following when replacing the PROMs (for example, when upgrading the version number). At this time, be particularly careful not to make a mistake with the direction of the PROM. The PROM which is marked “MN” is the main PROM. This PROM is mounted in position (1). 3047Q The PROM which is marked “MT” is the machine motor PROM. This PROM is mounted in position (2).
6. OPERATION 6. OPERATION 6-1. Name and function of each operation panel item 3049Q (1) Power indicator Illuminates when the power is turned on. (2) Warning indicator Illuminates when an error occurs. (3) RESET key Press to reset errors, and to clear the production counter. (4) BEFORE indicator Illuminates when cutting before sewing has been set. (5) BEFORE key Press to set cutting before sewing. (6) OFF indicator Illuminates when no cutting has been set. (7) OFF key Press to set no cutting.
6. OPERATION (13) Program mode indicator Illuminates during program mode. (14) Cycle program mode indicator Illuminates during cycle program mode. (15) SELECT key Press to change the mode. • When an independent program (1 - 9) is selected, the mode changes in the following order. Automatic mode → Test feed mode → Manual mode → Program mode → Automatic mode • When a cycle program (A - D) is selected, the mode changes in the following order.
6. OPERATION 6-3. Program setting method 3051Q 1. Press the SELECT key (1) to change the mode to automatic, manual or test feed mode. 2. Press the and keys to select the program number (1 - 9) for the independent program to be changed. Note: Program mode is not available if a cycle program has been selected. 3. Press the SELECT key (1). The program mode indicator (2) will illuminate.
6. OPERATION No. Setting items Setting range Unit Default 04 Offset 0.5 - 2.0 mm 0.1 1.5 05 Stitch pitch 0.5 - 2.0 mm 0.1 1.0 06 Number of eyelet stitches 4 - 20 stitches 1 9 07 Cutting space -0.3 - 0.5 mm 0.1 0 08 Knife X position compensation -0.5 - 0.5 mm 0.1 0 09 Knife Y position compensation -0.7 - 0.7 mm 0.
6. OPERATION No. Setting items Setting range Unit Default 13 Y alignment -1 - 6 1 0 14 θ1 alignment -3 - 3 1 0 15 θ2 alignment -3 - 3 1 0 16 Eyelet machine speed (*2) -600 - 0 rpm 100 0 17 Eyelet radius OFF, 1 - 5 1 OFF 18 Taper tact radius OFF, 1 - 5 1 OFF 19 Taper tact angle -5 - 5 1 0 20 Slow start stitches 0 - 3 stitches 1 0 21 Slow start speed (*3) 400 - 1,500 rpm 100 1,000 22 Stitch width correction -1.0 - 1.0 mm 0.
6. OPERATION 6-3-2. Parameter table ( Straight bar tacking ) The allowable setting range for some parameters may vary from the range specified, depending on the settings of other parameters. No. Setting items Setting range 00 Sewing speed 1,000 - 2,200 rpm 01 Eyelet pattern 02 Button hole length (*1) 03 Tacking length 04 Tacking stitches 5 - 18 stitches 05 Stitch pitch 0.5 - 2.
6. OPERATION No. Setting items Setting range Unit Default 08 Knife X position compensation -0.5 - 0.5 mm 0.1 0 09 Knife Y position compensation -0.7 - 0.7 mm 0.
6. OPERATION No. Setting items Setting range 17 Eyelet radius OFF, 1 - 5 18 Width correction value 19 Unit Default 1 OFF -1.0 - 0 mm 0.1 0 Tacking overlap amount 0 - 2.0 mm 0.1 1.0 20 Slow start stitches 0 - 3 stitches 1 0 21 Slow start speed (*3) 400 - 1,500 rpm 100 1,000 22 Stitch width correction -1.0 - 1.0 mm 0.1 0 23 Tacking X alignment -1.0 - 1.0 mm 0.
6. OPERATION 6-4. Cycle program Cycle programs can consist of up to a maximum of four independent programs (A to D). A single cycle program can contain up to a maximum of eight steps. The following shows an example of storing a cycle program into cycle program A that consists of four steps of program 1 with knife operation on, and one step of program 3 with knife operation off. Program No. Knife operation Step 1 1 ON Step 2 1 ON Step 3 1 ON 3052Q 2410Q Step 5 3 OFF 1.
6. OPERATION 6-5. Production counter 3053Q 1. Press the SELECT key (1) to change the mode to automatic mode. 2. Press the key and key simultaneously. * "PC" will flash in the program number display (2), and the production counter value will appear in the detail display (3). 3. Press the keys to change the production counter setting. * The production counter setting will flash while the setting is being changed. * If you would like to set the production counter to "0", press the RESET key (4). 4.
7. SEWING 7. SEWING CAUTION Turn off the power switch at the following times, otherwise the machine may operate if the start switch is pressed by mistake, which could result in injury. • When threading the needle • When replacing the needle • When not using the machine and when leaving the machine unattended. Do not touch any of the moving parts or press any objects against the machine while sewing, as this may result in personal injury or damage to the machine. 7-1.
7. SEWING 7-2. Using the EMERGENCY STOP switch 3058Q 3140Q 3139Q 1. Press the EMERGENCY STOP switch (1). * All sewing operations will stop and the buzzer will sound. At this time, the warning indicator (2) will flash and "E-60" will flash in the detail display (3). * If the upper shaft could not stop in the needle up stop position, "E-10" will flash in the detail display (3). In this case, turn the upper shaft pulley by hand to set the upper shaft to the needle up stop position. (Align the marks.) 2.
7. SEWING 7-3. Adjusting the thread tension Turn off the power. Never adjust the thread tension while sewing. Woolen materials + wool gimps Denim (3 layers) Upper thread tension 0.9 N 1.0 N Lower thread tension 0.3 N 0.8 N Thread take-up spring tension 0.05 N 0.07N Thread take-up spring stroke 8 mm 8 mm Upper and lower thread # 30 polyester # 30 cotton * If you change the type of material being used, it may be necessary to change the thread tension.
7. SEWING 7-4. Needle and knife position The feed bracket is electronically controlled by means of pulse motors. It is not necessary to change the position of the knife when switching between cutting before sewing and cutting after sewing. It is not necessary to change the needle down position in order to keep enough space for cutting when cutting after sewing has been selected. Relationship between knife position and eyelet shape 0936Q Straight section Knife a 1.
7. SEWING 7-5. Setting the feed bracket to the front position Setting the material will be easier if the feed bracket is moved forward from the standard cloth setting position. Cycle time will be reduced with this setting, particularly if cutting after sewing is selected. 3141Q 2418Q 1. Turn off the power. 2. Set panel DIP switch No. 3 to ON. 3. Turn on the power and press the start switch (1). * The feed bracket will move to the home position and then to the front position. 4.
7. SEWING 7-7. Using test feed mode In this mode, the feed bracket can be moved while the needle stopped. It is useful for checking the relative positions of the needle and the work clamp. 3063Q 3142Q 1. Press the SELECT key (1) to change the mode to test feed mode. * The program number will appear in the program number display (2), and the number of stitches will appear in the detail display (3). 2. Use the and keys to select the desired program number.
7. SEWING 7-8. Using manual mode In this mode, the feed bracket can be moved one stitch at a time by turning the upper shaft pulley by hand. This is useful when carrying out timing adjustment. 3143Q 3063Q 1. 2. 3. 4. 5. 6. 7. 8. 3144Q Press the SELECT key (1) to change the mode to manual mode. * The program number will appear in the program number display (2), and the number of stitches will appear in the detail display (3). Use the and keys to select the desired program number.
7. SEWING 7-9. Changing the mode during an operation • If you press the SELECT key (1) during test feeding, you can change the mode to manual sewing in manual sewing mode. • If you press the SELECT key (1) while pressing and holding the ENTER key (2) during test feeding, you can change the mode to resewing enabled in automatic sewing mode. • If you press the SELECT key (1) during manual sewing mode, you can change the mode to test feeding in test feeding mode.
8. CLEANING AND MAINTENANCE 8. CLEANING AND MAINTENANCE CAUTION 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 injury. Be sure to wear protective goggles and gloves when handling the lubricating oil and grease, so that they do not get into your eyes or onto your skin, otherwise inflammation can result.
8. CLEANING AND MAINTENANCE 8-2. Draining the oil When the oil container (1) is full of oil, remove the oil container (1) and let the oil drain out. Note: Clean up any oil that may have been spilt onto the floor. 3145Q 8-3. Checking the air filter 1. Close the air cock (1). 2. Turn the screw (2) to release any air and water in the drain.
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 from the wall outlet at the following times, otherwise the machine may operate if the start switch is pressed by mistake, which could result in injury.
9. STANDARD ADJUSTMENTS 9-2. Adjusting the needle and looper timing The distance by which the needle bar rises from its lowest position to the position where the tip of the eye looper and the center of the needle are aligned should be the same as the distance from its lowest position to the position where the tip of the right looper and the center of the needle are aligned. Before adjusting the looper timing, first adjust the stitch width (needle racking width).
9. STANDARD ADJUSTMENTS 9-3. Adjusting the loop stroke The loop stroke is the distance the needle bar rises from its lowest position to the position where the tips of the eye looper and right looper are aligned with the center of the needle. The standard loop stroke is 2.7 mm. (The loop stroke may need changing depending on the material and thread being used.) * Carry out the adjustment in "9-2. Adjusting the needle and looper timing" before making this adjustment. 2.7 mm 3079Q 1.
9. STANDARD ADJUSTMENTS 9-4. Adjusting the height of the needle bar The standard height for the needle bar is 2.5 mm. (The needle bar height may need changing depending on the material and thread being used.) 2.5 mm 2.5 mm 3082Q 0961Q 3083Q 1. Align the tip of the eye looper (1) with the center of the needle (2) when the needle (2) is at the inside sewing position. 2. Remove the face plate. 3. Loosen the screw (3) of the needle bar clamp (5) and adjust the height of the needle bar (4).
9. STANDARD ADJUSTMENTS 9-6. Adjusting the needle guard Be sure to carry out this adjustment after changing the size of the needle. The needle must remain stationary with respect to the needle guard until the tip of the looper reaches the needle. Loosen the screw (1) and then move the needle guard (3) in the directions indicated by the arrows by an appropriate amount in accordance with the thickness of the needle (2). Note: Adjust so that the looper clasps the upper thread securely. 3085Q 9-7.
9. STANDARD ADJUSTMENTS 9-8. Adjusting the spreader timing When the needle is at the inside sewing position, the left spreader should touch the left spreader stopper and stop immediately before the needle bar reaches its lowest position. When the needle is at the outside sewing position, the right stopper should touch the right spreader stopper and stop immediately before the needle bar reaches its lowest position. 1. Raise the machine head. 2.
9. STANDARD ADJUSTMENTS 9-10. Changing the knife cutting length (Replacing the hammer) Illustration (A) 3089Q 0970Q 1. Grind or replace the hammer after changing the knife cutting length. 2. Loosen the screw (1), and then remove the hammer (2). Because the knife cutting length is set in accordance with the length of the hammer, grind the hammer as shown in (A) in the above illustration. Hammer length A = Knife cutting length + 1.5 mm 3.
9. STANDARD ADJUSTMENTS 9-11. Adjusting the contact between the knife and the hammer 0971Q 1. Remove the hammer. (Refer to the previous page.) 2. If the knife incision on the surface of the hammer is very deep, if there are two or more incisions on the hammer because different knives were used, or if only part of the incision has been made, grind the surface of the hammer smoothly until a single knife incision can still be seen faintly. 3.
9. STANDARD ADJUSTMENTS 9-12. Replacing the knife (L1 - L4) 3092Q 3091Q 1. After checking that there is no clearance between the stopper plate (1) and the knife (2), loosen the bolt (3) and then remove the knife (2). 2. Insert the new knife (2) into the stopper plate (1), and then tighten it with the bolt (3). Note: For L1 - L4 specifications, secure the stopper plate (1) in the position closest to you (the position indicated by the dotted lines).
9. STANDARD ADJUSTMENTS 9-14. Adjusting the position of the work clamp plate Adjust so that the throat plate (1) and the needle plate R (2) do not make contact during sewing. The standard clearance between the throat plate (1) and the needle plate R (2) is 1.3 mm (when the cutting space is set to 0). Increase Decrease 1.3mm 3094Q 3095Q 1. Use the parameter settings to set the cutting space to "0". 2. Select the test feed mode, and press the start switch. 3.
9. STANDARD ADJUSTMENTS 9-15. Adjusting the cloth opening amount 3096Q 3097Q 1. Loosen the screw (1), and then insert a screwdriver into the notch in the side of the feed bracket and turn the adjusting screw (2) to adjust the opening amount. 2. After tightening the screw (1), measure the opening amount. Note: Adjust so that the opening amounts for the left and right work clamp plates are equal. * It is usually sufficient for one work clamp plate to open by 0.8 mm.
9. STANDARD ADJUSTMENTS 9-16. Adjusting the trimming of the upper thread The upper thread should be trimmed at the correct time after sewing is completed. <-00, -01> Adjust so that the upper movable knife (1) cuts only one of the threads in front of the right looper (2). Note: If both strands of the thread loop are cut, the thread remaining in the needle may become too short and skipped stitches may result.
9. STANDARD ADJUSTMENTS <-02,-52> The lower thread and gimp should be trimmed at the correct time after the work clamps rise at the feed home position. Thread trimming operation can be checked in steps while manual mode is active. (Refer to “7-8. Using manual mode”.) 1. The mechanism is adjusted so that the lower thread and gimp are spread by the thread handler (1). 2. The movable knife driving cam (2) operates, and the right movable knife (3) and left movable knife (4) mesh and the thread is cut.
9. STANDARD ADJUSTMENTS 9-20. Auxiliary clamp arm (-02, -52 specifications) Trimming of the lower thread and gimp is carried out when the work clamps rise. The auxiliary clamp arm (1) endures that the material does not move during thread trimming, in order to maintain a stable thread length after trimming. 3107Q 9-21. Adjusting the cloth feeding speed (-52 specifications) 3108Q Becomes slower At the time of shipment A- side needle valve At a height of approximately 9.
9. STANDARD ADJUSTMENTS 9-22. Adjusting the cloth feed bar home position (-52 specifications) The cloth feed bar home position is adjusted by means of the bolt which is installed to feed base L. After carrying out this adjustment, adjust the installation position for limit switch (R). (Refer to page 71.) 3110Q 1. Loosen the nut (1) and then turn the bolt (2) so that it moves to the left. 2. Pull the cylinder rod (4) of the cylinder (3) as far to the right as it will go. 3.
9. STANDARD ADJUSTMENTS 9-23. Adjusting the indexer hole spacing (-52 specifications) Before carrying out this adjustment, check that the home position adjustment for the cloth feed bar has been carried out correctly. (Refer to page 69.) Standard Home position hole Large size Home position hole 3112Q 3113Q 1. Loosen the bolt (1). 2. Push the cloth feed bar (2) against the bolt (3). 3. Move the feed movable block (4) so that the pin (5) goes smoothly into the indexer holes (38.1 mm - (A), 44.
9. STANDARD ADJUSTMENTS 9-24. Adjusting the position of limit switch L (-52 specifications) Limit switch L must turn on when the feed movable block is touching the stopper block. 3116Q 1. Loosen the two bolts (1). 2. Place the feed movable block (2) and the stop block (3) firmly against each other. 3. Adjust the position of the switch setting plate (7) so that limit switch L (4) turns on when the roller (5) is pressed by the dog (6) of the feed movable block (2). 4. Tighten the two bolts (1). 9-25.
10. CHANGING FUNCTIONS USING THE MEMORY SWITCHES 10. CHANGING FUNCTIONS USING THE MEMORY SWITCHES The memory switches are valid for all programs. 3118Q 1. Press the SELECT key (1) to change the mode to program or cycle program mode. 2. While pressing the ENTER key (2), press the key. * The program mode indicator (3) and the cycle program mode indicator (4) will illuminate.
10. CHANGING FUNCTIONS USING THE MEMORY SWITCHES 10-1. Memory switch table The memory switch settings are applied immediately to all programs once the settings have been changed. However, memory switches marked with * are only applied after the power is turned on. No. Setting items Setting range Unit Default 00. Cloth presser down operation when feed bracket is forward OFF, ON - OFF 01. Cloth presser stays down after sewing OFF, ON - OFF 02.
11. CHANGING FUNCTIONS USING THE DIP SWICHES 11. CHANGING FUNCTIONS USING THE DIP SWITCHES Always turn off the power supply before changing any of the DIP switch settings. 11-1. Panel DIP switches The ON/OFF positions of the DIP switches inside the operation panel are checked only once when the power is turned on. Any changes to the DIP switch positions will not be effective until the power is switched off and back on again. 2425Q No.
11. CHANGING FUNCTIONS USING THE DIP SWICHES 11-2. Circuit board DIP switches DANGER Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet before opening the face plate of the control box. Touching areas where high voltages are present can result in severe injury. The ON/OFF positions of the DIP switches inside the control box are checked only once when the power is turned on.
11. CHANGING FUNCTIONS USING THE DIP SWICHES Circuit board DIP switch D 1001Q No.
12. LIST OF ERROR CODES 12. LIST OF 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 face plate of the control box. Touching areas where high voltages are present can result in severe injury. When an error occurs, the warning indicator and the error code display flash and the buzzer sounds. Errors after power is turned on Code E-00 Explanation EMERGENCY STOP switch was pressed. Resetting method 1.
12. LIST OF ERROR CODES Errors before operation and after the EMERGENCY STOP switch is pressed Code Explanation Resetting method E-30 EMERGENCY STOP switch was pressed. Release the EMERGENCY STOP switch and then press the RESET key. E-32 Machine head is tilted back. Turn off the power and return the machine head to its original position. E-35 Air pressure is insufficient. Turn off the power and check the air pressure. E-36 Feed plate home position sensor is OFF when it should be ON.
12. LIST OF ERROR CODES Errors during operation Code Explanation Resetting method E-71 Needle down sensor is not activated within a specified time. Turn off the power and check that connector P2 on the control circuit board is properly connected. 1. Turn off the power. E-72 Cutter sensor is not activated within a specified time. 2. Check that air is reaching the valve. 3. Check that connectors P3 and P4 on the control circuit board are properly connected. 1. Turn off the power.
13. TROUBLESHOOTING 13. TROUBLESHOOTING If there is a problem with operation, first check that the threads are correctly threaded and that the needle is correctly installed. CAUTION Turn off the power switch and disconnect the power cord before carrying out troubleshooting, otherwise the machine will operate if the start switch is pressed by mistake, which could result in injury. MACHINE HEAD Problem Thread breaks. Cause Remedy Thread tension control pressure is too strong. nut Adjust to pressure.
13. TROUBLESHOOTING Problem Upper thread is not cut. Cause Knife is blunt. Replace with a new knife. Page 63 Knife does not move to the full stroke because air pressure is Adjust the air pressure. too weak. 63 Install the upper thread trimmer Upper thread trimmer knife is knife so that it cuts only one side not picking up the upper thread. of the upper thread loop.
INSTRUCTION MANUAL Printed in Japan 118-981 SA0279-101 2003.01.
