Brother KE-484C Instruction Manual
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Brother KE-484C Instruction Manual

Brother KE-484C Instruction Manual

Electronic lockstitch pattern tacker with treble hook
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KE-484C
Please read this manual before using the machine.
Please keep this manual within easy reach for quick reference.
ELECTRONIC LOCKSTITCH PATTERN TACKER WITH TREBLE HOOK
INSTRUCTION MANUAL

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  • Page 1 KE-484C INSTRUCTION MANUAL Please read this manual before using the machine. Please keep this manual within easy reach for quick reference. ELECTRONIC LOCKSTITCH PATTERN TACKER WITH TREBLE HOOK...

  • Page 2: Safety Instructions

    ··········· This symbol ( ) indicates something that you must do. The picture inside the circle indicates the nature of the thing that must be done. (For example, the symbol at left means “you must make the ground connection”.) KE-484C...
  • Page 3 Keep the oil out of the reach of children. Be sure to connect the ground. If the ground connec- tion is not secure, you run a high risk of receiving a serious electric shock, and problems with correct operation may also occur. KE-484C...

  • Page 4: Maintenance And Inspection

    Disconnect the air hoses from the air supply and wait covered by the warranty. for the needle on the pressure gauge to drop to “0” before carrying out inspection, adjustment and repair of any parts which use the pneumatic equipment. KE-484C...

  • Page 5: Warning Labels

    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. Direction of operation Thread take-up cover Frame 2670Q side cover Belt cover Eye guard Finger guard 3220Q KE-484C...

  • Page 6: Table Of Contents

    9-4. Draining the oil............33 9-5. Cleaning the control box air inlet port ....33 9-6. Cleaning the air holes of belt cover and frame side cover..........33 9-7. Cleaning the eye guard..........33 10. STANDARD ADJUSTMENTS....10-1. Adjusting the needle bar height ......34 KE-484C...

  • Page 7: Name Of Each Part

    (3) Operation panel (12) Eye guard (4) Foot switch (13) Thread take-up cover (5) Motor (14) Belt cover (6) EMERGENCY STOP switch (15) Frame side cover (7) Pulley (8) Spool stand (9) Thread take-up lever (10) Thread wiper switch KE-484C...

  • Page 8: Specifications

    Consult with your local Brother Sales Office for details. Note when creating additional data When sewing data with a small number of stitches (15 stitches or less) is sewn repeatedly (short cycle operation), the upper shaft motor may overheat and the “E-20” error code may be generated. KE-484C...

  • Page 9: Installation

    If the distance A between the insides of the legs is less than 740 mm, move the control box installation position to the left (B = 247 mm). Check that the control box is at least 10 mm away from the leg. If the control box and leg are touching, it could cause the sewing machine to operate incorrectly. 2739Q KE-484C...

  • Page 10: Installing The Control Box

    * The main P.C. board mounting plate (3) will be opened again during “3-11. Connecting the cords”, so provisionally tighten it with the screw (1). 4. Install the power switch (8) with the two screws (9). 5. Secure the power switch cord with the three staples (10). KE-484C...

  • Page 11: Installing The Rubber Cushions

    3-5. Installing the cushions Place the two cushions (1) into the holes in the work table so that the notches are aligned with the tabs in the oil pan, and secure them in place with the nails (2). 2492Q KE-484C...

  • Page 12: Installing The Switching Plate

    3. Install the hinge presser (6) with the two bolts and two nuts. 4. Check that the head position switch is turned on as shown in Figure 1. 5. Connect the motor cord connector (7) to the accessory cord connector (8). KE-484C...

  • Page 13: Installing The Head Rest

    3. Insert the connector cord (5) into the control box through the hole at the side of the box. Refer to “3-11 Connecting the cords” for details on connecting the cord. 4. Secure the connector cord (5) with the staples (in three places). KE-484C...

  • Page 14: Connecting The Ground Wire

    Be sure to connect the ground. If the ground connection is not secure, you run the risk of receiving a serious electric shock, and problems with correct operation may also occur. Connect to the power switch. However, the black wire is insulated to the inside of the box and is not used. Connect to ground 2741Q KE-484C...

  • Page 15: Connecting The Cords

    3. INSTALLATION 3-11. Connecting the cords 2503Q 2504Q 2502Q 3221Q KE-484C...
  • Page 16 10. Close the cord presser plate (6) in the direction of the black arrow, and secure it by tightening the screws (5). Note: Check that the cords do not get pulled when the machine head is tilted back gently. KE-484C...
  • Page 17 Note: Check that the cords do not come into contact with the fan (18) and that they are not clamped by the cover at this time. Note: Check that the main PROM ( ) is version MN-L or later. KE-484C...

  • Page 18: Piping

    Connect air tubes in accordance with the identified numbers in the figure. * Light work clamp mode can be used by changing over the air tube connections of work clamp cylinders. (Refer to “14. Setting the work clamp mode”.) KE-484C...
  • Page 19 2. Install the air unit (8) to the beam with two accessory screws (9) and two bolts (10). 3. Install the ground cord (11) to the machine head. 4. Connect the air hose (12). 5. Adjust the air pressure. (Refer to “10-10. Adjusting the air pressure”.) KE-484C...
  • Page 20 Fully open the upper and lower control knobs. Then turn the lower control knob to adjust the thread trimming speed as required. 3. Thread wiper (Valve 4) Fully open the upper and lower control knobs. 4. Tension release and thread take-up (Valve 5) Fully open the upper and lower control knobs. KE-484C...

  • Page 21: Installing The Belt Cover

    KE-484C...

  • Page 22: Installing The Needle Sub Plate

    (6). 2600Q 5. Provisionally secure the two auxiliary plate supports (7) with the washers (8) and the screws (9) and (10), and then firmly tighten the screws (9) and (10) in that order. 2601Q KE-484C...

  • Page 23: Installing The Spool Stand

    CAUTION 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 (2) to the face plate (1) with the two screws (3). 2510Q KE-484C...

  • Page 24: Lubrication

    4. Fill the liquid cooling tank (2) with silicon oil (100 mm /s). hook. * When setting up the sewing machine and when it hasn’t been used for an extended period of time, be sure to add 2-3 drops oil to the felt. KE-484C...

  • Page 25: Operation

    (14). The illuminated indicator changes as follows each time the switch is pressed. PROGRAM NO. indicator (7)→X-SCALE indicator (8)→Ｙ-SCALE indicator (9)→SPEED indicator (10)→COUNTER indicator(11) (7) PROGRAM NO. indicator..Illuminates when the SELECT switch (6) is pressed to shown the program number setting. KE-484C...
  • Page 26 (12) DISPLAY SET switches....Used to change the menu details which are displayed in the window (14). (13) User program switches.....Used to set and select user programs. (14) Display window ......This display window will indicate the current statu for the selected menu, error or memory switch. KE-484C...

  • Page 27: Operating Procedure

    * The needle racking width for backtack stitches (with stitch widths of 1 mm or less) is not enlarged or reduced. If this results in problems, set memo-0d to "ON" to enlarge or reduce the needle racking width for backtack stitches. KE-484C...

  • Page 28: Operating The Foot Switch

    The work clamp lowering pattern can be set to a variety of different patterns. (Refer to “14. SETTING THE WORK CLAMP MODE”. When the start switch (right side) is depressed, sewing starts. 1st step 2nd step Start switch Work clamp switch 0330Q KE-484C...

  • Page 29: Operating The Emergency Stop Switch

    When memory switch 2F (memo-2F) is ON, turn off the power switch before operating the thread wiper switch. If you operate the thread wiper switch while the power is still turned on, the work clamp may obstruct the thread wiper. 3169Q KE-484C...

  • Page 30: Checking The Sewing Pattern

    You can prevent accidental changes being made to programs by setting 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. 2459Q KE-484C...

  • Page 31: Correct Use

    Turn off the power switch before threading the thread, otherwise the machine may operate if the foot switch is depressed by mistake, which could result in injury. Thread the upper thread correctly as shown in the illustration below. 3175Q Approx. 40mm 3176Q KE-484C...

  • Page 32: Winding The Lower Thread

    * If the thread winds on as shown in A, turn the bobbin Case A winder thread tension stud (8) clockwise; if it winds on as shown in B, turn the bobbin winder thread tension stud (8) counterclockwise. Case B 3181Q KE-484C...

  • Page 33: Replacing The Bobbin Case And Threading The Thread

    Lower thread #4 or equivalent Upper thread tension (N) 4.5 - 5.0 Lower thread tension (N) 1.0 - 1.2 Thread take-up spring height (mm) 0 - 5 Thread take-up spring tension (N) 2.0 - 2.5 Pre-tension (N) 0.3 - 0.5 KE-484C...
  • Page 34 35 - 40 mm, when the thread take-up lever is not used. Stronger Weaker Stronger Weaker 3186Q 7-5-4. Thread take-up spring height Loosen the set screw (1) and turn the tensioner body to adjust the thread take-up spring height. Lower Higher 3187Q KE-484C...
  • Page 35 Loosen the nut (1) and move the stopper (bolt) (2) to adjust the protruding position of the cylinder (3). * To reduce the thread take-up amount, tighten the stopper (2). * To increase the thread take-up amount, loosen the stopper (2). 3190Q KE-484C...

  • Page 36: Sewing

    (5) to lower the work clamp (4), and depress the start switch (3). 3193Q 4. Once sewing is completed and the thread has been trimmed, feed will move automatically to the next starting point and the work clamp (4) will rise. KE-484C...

  • Page 37: Maintenance And Inspection

    0121Q 9-2. Cleaning the rotary hook 1. Pull the shuttle race cover toward you to open it, and then 3194Q remove the bobbin case. 2. Clean all the dust and thread ends from the shuttle race. 3195Q KE-484C...

  • Page 38: Lubrication

    When setting up the sewing machine and when it hasn’t been used for an extended period of time, be sure to add 2-3 drops oil to the felt. 3164Q 4. Fill the liquid cooling tank (2) with silicon oil (100 mm /s). 2513Q KE-484C...

  • Page 39: Draining The Oil

    In addition, be careful not to let any foreign matter get into the air holes. 2463Q 9-7. Cleaning the eye guard Wipe the eye guard clean with a soft cloth. Note: Do not use solvents such as kerosene or thinner to clean the eye guard. 0128Q KE-484C...

  • Page 40: Standard Adjustments

    (reference line B) is aligned with the lower edge of the needle bar bush (1). Then loosen the set screw (2) and move the rotary hook to adjust so that the tip of the rotary hook is aligned with the needle center line. KE-484C...

  • Page 41: Adjusting The Needle Clearance

    If the stroke of the thread take-up lever (1) is shorter than necessary, the needle thread trailing length may become too short and the thread may come out of the needle. Furthermore, if it is larger than necessary, the needle thread trailing length may become too long and the underside of the article being sewn may become untidy. KE-484C...

  • Page 42: Adjusting The Movable Knife

    Loosen the nut (2) and move the connecting rod lever (3) to the left or right to adjust so that the V section A is aligned with the index mark B on the needle plate when the sewing machine in the stopped position and the movable knife (1) is pushed to the machine pulley side so that there is no play. KE-484C...
  • Page 43 6. Install the fixed knife (11) at a distance of 0.5 mm from the needle hole plate (14). 7. Place the thread trimming connecting rod (8) onto the connecting rod lever pin (9), and then install to the needle plate(5). KE-484C...

  • Page 44: Adjusting The Work Clamp Lift Amount

    * If movement is sluggish when the work clamp (1) is being raised and lowered, it may not be possible to increase the work clamp (1) lift amount. Apply grease to the sliding part of the work clamp (1) (grease is already applied at the time of shipment), and check that the movement becomes easier. KE-484C...

  • Page 45: Work Clamp Interchangeability

    Then, change the installation position for the presser arm assembly (3) from the standard installation position A to installation position B. To use the BAS-311F work clamp and the KE-484C work clamp interchangeably Use the optional work clamp 434EMK2 air (5) with the KE- 484C work clamp.

  • Page 46: Adjusting The Thread Wiper

    After adjustment is complete, push the control knob (2) downward to lock it. 2. If water stands in the bottle of the integrator (1), turn the drain cock (3) in the direction indicated by an arrow to drain the water. 3218Q KE-484C...

  • Page 47: Checking The Input Sensor And Dip Switch Input

    The DIP switch can be changed at this time without turning off the power so that you can check the DIP switch input. However, you should normally always turn off the power when changing DIP switch settings. 3. Press the TEST switch (2) again to return the display to the normal condition. KE-484C...

  • Page 48: Checking The Input Voltage

    [ Method ] While pressing the RESET switch, turn on the power. This will clear all of the memory setting. Note: This operation causes memory switches to be returned to their initial settings, and user program setting to be cleared. KE-484C...

  • Page 49: 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 (6) is flashing. The stitch pattern will not be moved at this time. KE-484C...

  • Page 50: Using The Counters

    3. When the foot switch is depressed, the sewing machine will start sewing. 4. If you press the TEST switch (3) or the SELECT switch (1), the display will return to showing the bobbin thread counter. 11. USING THE COUNTERS 2585Q KE-484C...

  • Page 51: Changing Functions Using The Dip Switches

    Displays the enlargement/reduction ratio in millimeter units instead of as a percentage. (After DIPA-6 changing this setting, be sure to carry out the auto-clear operation by referring to page 42.) DIPA-7 Enlargement of pattern size is not available. DIPA-8 Program number is fixed. KE-484C...

  • Page 52: Dip Switches Inside The Control Box

    When the motor operates in reverse to raise the needle, the thread take-up will stop at a position which is lower than its normal stopping position. As a result, the thread take-up will rise slightly at the sewing start, and this may result in the thread pulling out under certain conditions. KE-484C...

  • Page 53: Using User Programs

    Repeat steps 3. through to 11. to record further programs as desired. 12. Press the TEST switch (2). This completes the recording. * The menu indicators ((4) to (8)) will all illuminate and “P1” will appear in the display to indicate that user program No.1 is currently selected. KE-484C...
  • Page 54 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. KE-484C...

  • Page 55: Changing Special Functions Using The Memory Switches

    Test feeding will be performed at the same speed as that for actual sewing. (This is used memo-0E for checking feeding operation.) After sewing is finished, the work clamp automatically opens and closes once (practice memo-0F operation). -- : OFF KE-484C...
  • Page 56 Enables the fiber-type thread breakage detector (when memo-21 is ON) − memo-27 Stores the amount of parallel movement in memory. memo-28 (Use the memory all clear operation to clear the setting.) memo-29 − memo-2F -- : OFF KE-484C...
  • Page 57 Changes the work clamp lift timing after sewing is finished. Tension release ON timing after thread trimming. × 7.5° memo-4E 2 - 9 2 (Fast) ← 5 (Standard) →9 (Slow) Thread trimming timing × 7.5° memo-4F 14 - 19 14 (Standard) ↔ 19 (Slow) KE-484C...

  • Page 58: Using The Cycle Sewing Function

    • This completes the setting of cycle sewing program No. 1. * The menu indicators ((4) to (8)) will all illuminate and “c1-1” will appear in the display window (10) to indicate that the cycle sewing program No.1 is currently selected. KE-484C...
  • Page 59 * If you press and hold the RESET switch (12) 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. KE-484C...

  • Page 60: Setting The Work Clamp Mode

    When memo-42 has been used to make a special setting, DIP switches A-1 and A-2 function as follows. • When DIP switch A-1 is at ON, the pressers are not raised automatically at the sewing end. • DIP switch A-2 is ignored except when memo-42 = 8. KE-484C...

  • Page 61: Light Work Clamp

    Branch: 1B mode Plug: 2B Both pressers lower, but only left presser lowers in light work Branch: 2A clamp mode Plug: 1A Both pressers lower, but only right presser lowers in light work Branch: 2A clamp mode Plug: 1A KE-484C...

  • Page 62: Table Of Error Codes

    Turn off the power, and then check if thread is tangled in the E-67 Thread wiper cylinder does not operate. thread wiper. Turn off the power, and then check if the cooling fan is E-70 Cooling fan does not operate. blocked with scraps of thread. KE-484C...
  • Page 63 Turn off the power and check. If drops in air pressure are not E-15 Air pressure drop error. being detected, clear all memory settings and then set the memo-1d switch to OFF. REFERENCE segment LED alphabet Panel display Text display KE-484C...

  • Page 64: Troubleshooting

    Refer to “Skipped stitches Refer to “Skipped stitches unthreaded. the sewing start. occur” occur” Uneven upper thread Upper thread length Adjust the sub-tension length. Thread take-up lever Adjust the thread take-up Upper thread is too short. stroke lever stroke. KE-484C...
  • Page 65 Needle is touching the rotary hook. Adjust the needle bar lift Needle bar lift amount. amount. Needle is bent. Bent needle Replace the needle. Use the correct needle Needle is too thin. Needle and thread for the material. KE-484C...
  • Page 66 9, 10 operate when power is connection connected. turned foot switch is depressed. Head position switch Adjust the position of the Switching plate position does not work. switching plate. Head position switch is Replace the head posi- broken. tion switch. KE-484C...

  • Page 67: Optional Parts

    17. OPTIONAL PARTS 17. OPTIONAL PARTS Three-pedal foot switch The switch has an independent left work clamp switch (left side), right work clamp switch (center) and start switch (right side). 3222Q KE-484C...

  • Page 68: Instruction Manual

    INSTRUCTION MANUAL 118-B84 Printed in Japan SA2032-001 2003.02.B(1)

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