Related Manuals for Brother LK3-B448E
Summary of Contents for Brother LK3-B448E
- Page 1 LK3-B448E Please read this manual before using the machine. Please keep this manual within easy reach for quick reference. ELECTRONIC LOCKSTITCH BUTTON SEWER WITH BUTTON FEEDER / BA-16 INSTRUCTION MANUAL...
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Page 2: Safety Instructions
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. - Page 3 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 47 kg. The installation should be carried out by two or more people.
- Page 4 Maintenance and inspection 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. Set the needle to the needle up stop position before turning on the power.
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Page 5: 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. Hazardous voltage will cause injury. -
Page 6: Table Of Contents
7-6-2. Upper thread tension ... 31 7-6-3. Thread take-up spring height ... 32 7-6-4. Thread take-up spring tension ... 32 7-6-5. Adjusting arm thread guide R ... 32 7-6-6. Thread take-up amount ... 32 CONTENTS ... 28 LK3-B448E MARK /BA-16... - Page 7 16. Table of error codes 17. Adjustment guide refer to this guide when different button are used 18. Troubleshooting ... 68 ... 34 ... 56 ... 57 ... 59 ... 65 ... 67 LK3-B448E MARK /BA-16 ... 61 ... 63...
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Page 8: Name Of Each Part
! 0 B utton feeder ! 1 V ibrating bowl !4 T hread take-up cove !5 B elt cover LK3-B448E MARK /BA-16 1.Name of each part rFoot switch iSpool stand ! 2 C ontrol box !6 M otor cover... -
Page 9: Specifications
Three-phase 400W induction motor Machine head: 47kg, Operation panel: 0.6kg, Control box: 9 - 19kg (depending on destination) Single-phase 220 - 230V 3-phase 220, 380, 400, 415V Maximum electric power consumption; 600VA LK3-B448E MARK /BA-16 0 - 6.4 mm 1#12 pre-set) -
Page 10: Program List
No. of No. of No. of crossover threads stitches stitches 5-5-5 7-7-7 5-5-5 7-7-7 10-10 12-12 10-10 12-12 LK3-B448E MARK /BA-16 2. Specifications Standard Standard sewing length X sewing width Y 3.4mm 3.4mm 2.6mm 2.4mm 3.4mm 3.4mm... - Page 11 [Refer to page 5].) If you want to sew a pattern other than one of the standard 24 patterns, you can create your original pattern using • the BAS-PC/300. Consult with your local Brother Sales Office for details. No. of Sewing No. of...
- Page 12 *2 Do not use the button lifter spring. No. of No. of crossover pattern threads stitches 10-10 12-12 10-10 10-10 LK3-B448E MARK /BA-16 2. Specifications No. of Standard Standard stitches sewing length X sewing width Y 3.4mm 3.4mm 2.4mm...
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Page 13: Optional Parts
22, 28, 29 and 32, 33, 35), do not move the button clamp assembly vertically while sewing is in pro-gress. (Refer to “Changing special functions using the memory switches” on page 59 “memo 14”.) LK3-B448E MARK /BA-16 /s). For women’s garments... -
Page 14: Installation
3. Installation Machine installation should only be carried out by a qualified technician. Contact your Brother dealer or a qualified elec- trician for any electrical work that may need to be done. The sewing machine head weighs more than 47 kg. -
Page 15: Installing The Motor
V groove in the motor pulley q is aligned as closely as possible with the center of the belt hole in the power table. LK3-B448E MARK /BA-16... -
Page 16: Installing The Control Box
4. Install the power switch ! 0 with the two screws ! 1 . 5. Secure the power switch cord with the three staples ! 2 . 6. Pass the motor cord through the cord hole !3 . 3 mm LK3-B448E MARK /BA-16 3. Installation Table... -
Page 17: Installing The Oil Pan
1. Place the washers q and cushions w into the two holes in the work table. * Adjust the height of the machine head to the button feeder by the number of the washers q. 2. After the height is decided, secure them with the nails LK3-B448E MARK /BA-16... -
Page 18: Installing The Machine Head
Tap the head rest q into the table hole. NOTE: Tap the head rest securely into the table hole. LK3-B448E MARK /BA-16 3. Installation above in order to prevent them from being clamped by the machine head. -
Page 19: Installing The Liquid Cooling Tank, Optional
1. Mount the control box q to the bottom of the box stay e with screws w. 2. Mount the control box stay e to the bottom of the work table with wood screws r. LK3-B448E MARK /BA-16... -
Page 20: Installing The Button Feeder
1. Raise the shooter lock pin w on the vibrating bowl q, and secure the shooter e by inserting the pin w, through the notch in the shooter. 2. Secure the shooter e with thumb screw r on button feeder t. LK3-B448E MARK /BA-16 3. Installation... -
Page 21: Connecting The Cords
12-pin P1 (ORG2) 5-pin P2 (SYNCHRO) 8-pin P3 (SELECT) 5-pin P4 (SOL2) 4-pin P5 (SOL) 4-pin (blue) P6 (YPM) 4-pin P7 (XPM) 26-pin None P8 (PANEL) None None 3-pin P11 (UVW) None None None 1-pin 16-pin None LK3-B448E MARK /BA-16... - Page 22 Connect the ground wire from the vibrating bowl to the motor. White 9P connector (machine head) Button feeder switch White Black 9P connector 3P connector (male) LK3-B448E MARK /BA-16 3. Installation 20P connector control box Black 7P connector control box...
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Page 23: Installing The Button Feeder Cover
Attach the button feeder cover q to the button feeder w with screws e, spring washers r, and washers t. * Be sure to pass the wires through the hole in the cover when attaching the button feeder cover q. LK3-B448E MARK /BA-16 Power switch connector (control box) -
Page 24: Installing The Operation Panel
CAUTION Connect to the power switch. However, the White black wire is insulated to the inside of the box and is not used. Black Yellow/Green ... Connect to ground LK3-B448E MARK /BA-16 3. Installation... -
Page 25: Installing The V-Belt
1 mm between it and the V-belt q, and then tighten the bolt B to secure the right pulley assembly. NOTE: Use brother specified V-belt (belt, VM). The V-belt q may stretch slightly when it is first used, so adjust the belt tension after about 3,000 cycles of use. -
Page 26: Installing The Belt Cover
incorrectly. -
Page 27: Installing The Motor Cover
Attach all safety devices before using the sewing machine. If the machine is used without these devices attached, injury may result. Install the eye guard assy w to the face plate q with the two screws e. LK3-B448E MARK /BA-16 CAUTION... -
Page 28: Adjustment By The Accessory Spring
2. Install the spring e with the washer r and the screw * The spring is effective for use with the following sew- ing patterns: 1-6, 14-17, 20, 28-30, 32, 33, 46-49 * When using a solenoid-type thread wiper, the effec- tive patterns are: 36-42 LK3-B448E MARK /BA-16 3. Installation... -
Page 29: Lubrication
If oil is not added and the oil drops below this level, there is the danger that the machine may seize during operation. Be sure to let the machine operate for a while after adding the oil. Use only specified Brother oil (Nisseki Sewing Lube 10) for the machine oil. 4-1 . Lubrication points 1. -
Page 30: Applying Grease
[E-6 ] may appear on the display. 1. Remove and empty the waste oil container q whenever it is full. 2. After emptying the waste oil container q, screw it back into its original position. LK3-B448E MARK /BA-16 4. Lubrication... -
Page 31: Operation
!4 .The illumi- nated indicator changes as follows each time the switch is pressed. Y-SCALE indicator o number setting. LK3-B448E MARK /BA-16 SPEED indicator !0 COUNTER indicator !1... - Page 32 !4 Display window ... This display window will indicate the current status for the selected menu, error or PROGRAM NO. X - SCALE Y - SCALE SPEED COUNTER S E L E C T production counter setting. memory switch. LK3-B448E MARK /BA-16 5. Operation...
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Page 33: Operating Procedure
(The setting is displayed as a percentage.) Press the DISPLAY SET switches ! 2 until the de- sired speed setting is flashing in the display window. LK3-B448E MARK /BA-16 Factory default Variable range 00 * 01 - 49 20 - 200... -
Page 34: Operating The Button Feeder
2. Turn the switch q in the control box on. 3. Turn the adjustment knob w. Turn the knob right to increase and left to decrease the amount of vibration of the vibrating bowl. LK3-B448E MARK /BA-16 5. Operation sewing is complete. -
Page 35: Checking The Sewing Pattern
DIP switches 7 and 8 to ON. When DIP switch 7 is ON ... The sewing pattern cannot be enlarged. When DIP switch 8 is ON ... The program number cannot be changed. LK3-B448E MARK /BA-16 T E S T 1st step 2nd step... -
Page 36: Correct Use
Loosen the set screw q, insert the needle w as far as it will go so that the groove is facing toward you, and then tighten the set screw q. CAUTION [When using the liquid cooling tank] Approx. 40mm LK3-B448E MARK /BA-16 7. Correct use Thread Button hole diameter 1.5mm or greater 1.6mm or greater... -
Page 37: Winding The Lower Thread
B, turn the bobbin winder thread tension stud w counterclockwise. CAUTION BOBBIN.WIND 8. To wind more thread onto the bobbin, loosen the set screw t and pull the bob- bin presser q outward. LK3-B448E MARK /BA-16 Case A Case B... -
Page 38: Replacing The Bobbin Case And Threading The Thread
Furthermore, turn the thread nut w (sub-tension) to ad- just the remaining length of upper thread to 35 - 40 mm when the thread take-up lever is not used. LK3-B448E MARK /BA-16 7. Correct use 30mm... -
Page 39: Thread Take-Up Spring Height
* To reduce the thread take-up amount, move the stop- per w upward. * To increase the thread take-up amount, move the stop- per w downward. LK3-B448E MARK /BA-16 Stronger Weaker... -
Page 40: Sewing
* Depending on the sewing data, thread trimming may be carried out or the button clamp may rise during sewing, but the rest of the sewing will still be carried out automatically. CAUTION 1st step 2st step LK3-B448E MARK /BA-16 8. Sewing... -
Page 41: Maintenance And Inspection
When this happens, the overheating error code [E-d0] will be displayed and you will not be able to operate the sewing machine. LK3-B448E MARK /BA-16 3. Clean all the dust and thread ends from around the driver r, the top of the rotary hook thread guide and the shuttle race. -
Page 42: Cleaning The Eye Guard
Do not use solvents such as kerosene or thinner to clean the eye guard. Always check that the tip of the needle is not broken and also the needle is not bent before starting sewing. LK3-B448E MARK /BA-16 9. Maintenance and inspection... -
Page 43: Adjustments
Maintenance and inspection of the sewing machine should only be carried out by a quali- fied 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... -
Page 44: Adjusting The Needle Bar Height
* When returning the felt support e, place it as shown in the illustration so as not to clamp the felt t, and then gently press the felt t and the wick y until they are at the same height as the rotary hook race. * Return the support w to its original position. LK3-B448E MARK /BA-16 10. Adjustments... -
Page 45: Adjusting The Driver Needle Guard
Install the shuttle race thread guide q by pushing it in the direction of the arrow so that the needle groove is aligned with the center of the needle plate hole. NOTE: If the shuttle race thread guide is in the wrong position, thread breakages, soiled thread or catching of the thread may occur. LK3-B448E MARK /BA-16... -
Page 46: Adjusting The Thread Take-Up Amount
Loosen the nut w and move the connecting rod lever e to the left or right to adjust so that the V section A is aligned with the index bark B on the needle plate when the sewing machine in the stopped position and the movable knife q is moved toward the index mark. -
Page 47: Replacing The Movable Knife And Fixed Knife
5. Install the fixed knife o at a distance of 0.5 mm from the needle hole plate ! 1 . 6. Place the thread trimming connecting rod y onto the connecting rod lever pin u, and then install to the needle plate t. LK3-B448E MARK /BA-16 0.5 mm... -
Page 48: Adjustment The Engagement Of The Movable Knife And Fixed Knife
* If movement is sluggish when the button clamp is being raised and lowered, it may not be possible to increase the button clamp lift amount. * If the button clamp cannot be raised or lowered, error code [E-61], [E-63] will be displayed. LK3-B448E MARK /BA-16 10. Adjustments Fig. -
Page 49: Adjusting The Holding Pressure
1. Loosen the two hexagonal bolts q and adjust the button holder body w by moving it. 2. Check that the needle will go through the button hole with no contact. (Refer to “6. CHECKING THE SEW- ING PATTERN”.) LK3-B448E MARK /BA-16... -
Page 50: Adjusting The Button Clamp Height
2. The button carrier will move slowly if the foot switch is turned on with the manual switch depressed. The sewing machine will operate in inching mode while the manual switch is being pressed, and will stop when the manual switch is released. -
Page 51: Adjusting The Needle Up Stop Position
* If the index mark w is not inside the mark r when the sewing machine is started, error code [E-50] will be dis- played. Turn the machine pulley to move the index mark w to the correct position and then start the sewing machine. -
Page 52: Adjusting The Vibrating Bowl
6. Loosen screw r and adjust the button to button width adjustment arm ! 1 gap to approximately 2 mm so that the buttons are fed to the shooter. 7. If buttons become clogged at the entrance to the shooter, loosen screw ! 2 and turn it so that buttons do not clog at the shooter entrance. LK3-B448E MARK /BA-16 10. Adjustment... -
Page 53: Adjustment For Excess Buttons In The Button Shooter
2. With the button carrier q in this position, pull lever e to remove any excess buttons from the shooter at point 3. Press the manual switch to feed a button to the button clamp. LK3-B448E MARK /BA-16... -
Page 54: Button Replacement
5. After the button is inserted, push the lever r slightly in the direction of the arrow to check that the trouble indicator t does not blink. * If the indicator blinks, move slightly and narrow the button clamp w opening (mentioned in 3. above). 0.5mm~1.0mm LK3-B448E MARK /BA-16 10. Adjustment AUTO 1... -
Page 55: Adjustment When The Button Thickness Changed
* If no spacers are used, button thicknesses from 1.8 to 2.2 mm can be used. Loosen screw q and replace the button carrier w. * Adjust the button carrier. (Next page) * Adjust the feeder position. (Next page) * Adjust the needle position. (See p.31.) LK3-B448E MARK /BA-16... -
Page 56: Adjusting The Feeder Position Adjustment
The buzzer will stop sounding when the RESET switch is pressed, but the error code will continue to be displayed, and so the machine head will still be prevented from operating. * The sewing machine will operate in inching mode while the manual switch w is being pressed, and will stop when the manual switch w is released. -
Page 57: Adjusting The Needle Location
X-scale and Y-scale” on page 45.) 2. Check the positions of the button holes. (Refer to “Checking the sewing pattern” on page 26.) Vertical feed Button hole gap Button hole gap Horizontal feed LK3-B448E MARK /BA-16 Button hole gap Horizontal feed... -
Page 58: Replacement The V-Belt
1 mm between it and the V-belt q, and then Approx. 9 - 10 mm tighten the bolt B to secure the rigth pulley assem- bly. 8. After adjustment, install the belt cover and the motor cover. LK3-B448E MARK /BA-16 10. Adjustment... - Page 59 10. Adjustment V-belt Fig.1 NOTE: Use brother specified V-belt (belt, VM). Sewing The V-belt may stretch slightly when it is first used, machine so adjust the belt tension after about 3,000 cycles of use. When above belt tension is weak, this will be cause of following problems;...
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Page 60: Checking The Input Sensor And Dip Switch Input
3. Press the TEST switch w again to return the display to the normal condition. PROGRAM NO. X - SCALE Y - SCALE SPEED COUNTER S E L E C T · When sensor is OFF LK3-B448E MARK /BA-16 10. Adjustment... -
Page 61: Checking The Input Voltage
S E L E C T “100” is displayed when the input voltage is 200 V. “110” is displayed when the input voltage is 100V (for 100-V spece.), 380V (for 380-V spece.), 400V (for 400-V spece.)or 415V (for 415-V spece.). LK3-B448E MARK /BA-16 Notes... -
Page 62: Moving Stitch Patterns
* If you would like to set the feed position to a desired position, carry out steps 2. to 6. above while the display window y is flashing. The stitch pattern will not be moved at this time. S E L E C T > will appear in the display window y. LK3-B448E MARK /BA-16 10. Adjustment... -
Page 63: Using The Counters
* The sewing machine will not operate during this time, even if the foot switch is depressed. 6. Replace the bobbin, and then press the RESET switch r. -
Page 64: Using User Programs
* The X-SCALE indicator t will illuminate. * The Y-SCALE indicator y will illuminate. * The SPEED indicator u will illuminate. * This completes the recording of user program No.1. LK3-B448E MARK /BA-16 12. Using user programs PROGRAM NO. POWER... - Page 65 If data has been recorded in user programs P1, P2, P3 and P4 and you then clear the data in user program P2, the contents of P3 will be transferred to P2, and the contents of P4 will be transferred to P3. LK3-B448E MARK /BA-16...
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Page 66: Using The Cycle Sewing Function
* The menu indicators (r to i) will all illuminate and “c1-1” will appear in the display window !0 to indicate that the cycle sewing program No.1 is currently selected. *“2- -” will appear in the display window !0 . LK3-B448E MARK /BA-16 13. Using the cycle sewing function... - Page 67 * If you press and hold the RESET switch !2 until after the buzzer has sounded twice, all cycle sewing programs will be cleared. NOTE: If you clear a user program after any cycle sewing programs have been recorded, all recorded cycle sewing programs will also be cleared. LK3-B448E MARK /BA-16...
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Page 68: Changing Functions Using The Dip Switches
Presser is raised by pressing the pedal. Presser is raised automatically, then it is lowered by Two pedals pressing the pedal. Two pedals Presser is kept lifted while the pedal is pressed. LK3-B448E MARK /BA-16 See “12-2. Setting the presser mode”... -
Page 69: Dip Switches Inside The Control Box
DIP switches q. * All DIP switches are set to OFF at the time of shipment. NOTE: When opening the cover, hold it securely so that it does not fall down. Motion when set to ON LK3-B448E MARK /BA-16... -
Page 70: Changing Special Functions Using The Memory Switches
15-1. Clearing all memory settings If the sewing machine stops operating normally, the cause may be that an incorrect memory setting may have been made by means of the memory switch, for instance. In such cases, carry out the following procedure to clear the memory, and also check the DIP switch settings. - Page 71 Changes the feed timing for the second stitch at the sewing start. x 7.5 Changes the feed timing for the first stitch at the sewing start. — — — — — — — — — — — — — — — LK3-B448E MARK /BA-16 Explanation...
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Page 72: Table Of Error Codes
If a malfunction should occur with the sewing machine, a buzzer will sound and an error code will appear in the display window. Follow the remedy procedure to eliminate the cause of the problem. - Page 73 Turn off the power and check. Turn the EMERGENCY STOP switch clockwise to release the lock, and then press the RESET switch to reset the error. You can then press the STEP BACK switch to repeat the sewing. LK3-B448E MARK /BA-16 Remedy Remedy...
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Page 74: Adjustment Guide Refer To This Guide When Different Button Are Used
When button thickness (t) changes Adjust height control plate Adjust button adjustment dial Replace the shoot coil Replace the spacer (S) LK3-B448E MARK /BA-16 When button hole gap (B) changes Replace the button carrier Adjust right/left needle and button carrier pin positions... -
Page 75: Troubleshooting
Thread wiper position Bobbin winder thread tension stud height Thread winding amount Refer to "Skipped stitches occur". Upper thread length LK3-B448E MARK /BA-16 Remedy Page Adjust the height of the button clamp to within 13 mm. Adjust the position of the thread wiper. - Page 76 Needle direction Needle down setting Needle clearance Needle bar lift amount. Bent needle Needle and feed timing Needle and thread LK3-B448E MARK /BA-16 18. Troubleshooting Remedy Page Adjust the upper thread tension. Install the needle so that the groove is facing forward.
- Page 77 Upper thread tension Upper thread length Upper thread tension Lower thread tension Thread takeup spring tension and height Needle down setting LK3-B448E MARK /BA-16 Remedy Page Sharpen or replace the fixed knife. Adjust the position of the shuttle race thread guide.
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Page 78: Instruction Manual
INSTRUCTION MANUAL BROTHER INDUSTRIES, LTD. 15-1, Naeshiro-cho, Mizuho-ku, Nagoya 467-8561, Japan. Phone: 81-52-824-2177 Printed in Japan 151-916 S93V48-002 2000.06. H (1)