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Brother SL-1110 Instruction Manual

High speed single needle straight lock stitcher.
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SL-1110
S-7550A
HIGH SPEED SINGLE NEEDLE STRAIGHT LOCK STITCHER
Please read this manual before using the machine.
Please keep this manual within easy reach for quick reference.
INSTRUCTION MANUAL

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Table of Contents

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   Summary of Contents for Brother SL-1110

  • Page 1 SL-1110 INSTRUCTION MANUAL S-7550A HIGH SPEED SINGLE NEEDLE STRAIGHT LOCK STITCHER Please read this manual before using the machine. Please keep this manual within easy reach for quick reference.
  • Page 2 Follow the instructions from training personnel and instructors regarding safe and correct operation before operating the machine so that you will know how to use it correctly. SL-1110...
  • Page 3: Safety Instructions

    ) 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”.) SL-1110...
  • Page 4 Keep the oil out of the reach of children. Secure the table so that it will not move when tilting back the machine head. If the table moves, it may crush your feet or cause other injuries. SL-1110...
  • Page 5: Maintenance And Inspection

    When carrying out inspection, adjustment and Any problems in machine operation which result maintenance from unauthorized modifications to the machine will When replacing consumable parts such as the rotary hook not be covered by the warranty. SL-1110...
  • Page 6 Direction of operation Safety devices: (A) Finger guard (B) Thread take-up cover (C) Belt cover 3824M Oil pan 3871M 3825M SL-1110...
  • Page 7: Table Of Contents

    6-6. Adjusting the stitch length ......11 7. SEWING ..........12 7-1. Sewing ............12 7-2. Backtacking........... 12 8. THREAD TENSION......13 8-1. Adjusting the thread tension......13 8-2. Adjusting the presser foot pressure ....14 9. CLEANING ........... 14 SL-1110...
  • Page 8: Names Of Major Parts

    5,500rpm Max. sewing speed (Normal sewing speed: 4,000rpm 5,000rpm) Max. stitch length 4.2mm Lifting lever Presser foot height Knee lifter 13mm Feed dog height 0.8mm 1.2mm Needle (DB x 1, DP x 5) #11 - #18 #19 - #22 SL-1110...
  • Page 9: Table

    < Motor pulley and V-belt > Select the correct motor pulley and V-belt by referring to the table below to suit the power frequency of your area. 50Hz 60Hz Sewing speed Motor pulley V-belt Motor pulley V-belt (Outer diameter) (Outer diameter) 5,000rpm 4,000rpm SL-1110...
  • Page 10: Installation

    (1) Head cushions (left) [2 pcs] (2) Head cushions (right) [2 pcs] (3) Oil pan (4) Magnet Operator 4065M 2. Rubber cushions (1) Rubber cushions [2 pcs] (2) Nails [4 pcs] 3. Knee lifter complying bar (3) Knee lifter complying bar 3830M SL-1110...
  • Page 11: Machine Head

    (5) is at the desired position within a distance of 13 mm of the needle plate when the knee liter plate (1) is fully pressed. 9. After adjustment is completed, securely tighten the nut (9). Within 13 mm 3835M SL-1110...
  • Page 12: Belt Cover

    4 - 5 turns. 2. Tilt back the machine head, align the groove in the belt cover (2) with the stud (3) and the three screws (1), and then securely tighten screw (1)-A only. 3838M SL-1110...
  • Page 13 U (5). 3839M 6. Place belt cover D (7) so that it 3840M overlaps the belt cover (2) by 2 - 3 mm, and then provisionally tighten the two screws (8). 3841M (Continued on next page) SL-1110...
  • Page 14: Cotton Stand

    (Refer to step 6.) 3843M 9. Cotton stand (1) Cotton stand NOTE: Securely tighten the nut (4) so that the two rubber cushions (2) and the washer (3) are securely clamped and so that the cotton stand (1) does not move. 3844M SL-1110...
  • Page 15: Ground Wire Connections

    2. Depress the treadle slightly and check that the machine pulley starts to turn in the direction of the arrow (1). * If the direction of rotation is reversed, change the direction of rotation to the correct direction while referring to the instruction manual for the motor. 3847M SL-1110...
  • Page 16: Preparation Before Sewing

    2119M 2120M above the needle plate. 2. Pull the latch (1) of the bobbin case upward and then remove the bobbin case. 3. The bobbin (2) will come out when the latch (1) is released. For thick materials 0798M SL-1110...
  • Page 17: Winding The Lower Thread

    (2), and then pull it out from the thread guide (3). 4. Check that the bobbin turns clockwise when the thread is pulled. 5. Hold the latch (4) on the bobbin case and insert the bobbin case into the rotary hook. 2126M SL-1110...
  • Page 18: Threading The Upper Thread

    When turning the stitch length dial (1) from a larger setting to a smaller setting, it will be easier to turn the dial if the reverse lever (3) is pushed to the halfwaydown position. 3851M SL-1110...
  • Page 19: Sewing

    1. Turn on the power switch. 2. Depress the treadle to start sewing. 7-2. Backtacking When the reverse lever (1) is pressed during sewing, the feed direction will be reversed. When it is released, the feed direction will return to normal. 3852M SL-1110...
  • Page 20: Thread Tension

    After the lower thread tension has been adjusted, adjust the upper thread tension so that a good, even stitch is obtained. 1. Lower the presser foot. 2. Adjust by turning the tension nut (2). Becomes weaker Becomes stronger 3853M SL-1110...
  • Page 21: Adjusting The Presser Foot Pressure

    2. Remove the two screws (1), and then remove the needle plate (2). 3. Use a soft wire brush to clean any dust from the feed dog (3). 4. Install the needle plate (2) with the two screws (1). 2182M Continued on next page SL-1110...
  • Page 22 12. Return the machine head to its original position. 13. Replace the needle if it is bent or if the tip is broken. 14. Check that the upper threads have been threaded correctly. (Refer to page 11.) 15. Carry out a test sewing. 3856M SL-1110...
  • Page 23: Standard Adjustments

    (1). 3. Insert a screwdriver into the slot of the tension stud (6), and turn the screwdriver to adjust the tension of the thread take-up spring (1). <-3> 0.25 - 0.35 N <-5> 0.3 - 0.5 N 3859M SL-1110...
  • Page 24: Adjusting Arm Thread Guide R

    6. Replace the oil cap (5). 7. Adjust the presser foot pressure using the adjustment screw (4), and then tighten the nut (3). Needle * After adjusting, check that the needle moves down into the center of the groove in the presser foot. 1257M SL-1110...
  • Page 25: Adjusting Of The Feed Dog Height

    5. Securely tighten the set screws (4). * The height of the feed dog (1) will change after the angle has been adjusted, so it will be necessary to re-adjust the Standard height of the feed dog (1). Lower the front Raise The front 3865M SL-1110...
  • Page 26: Adjusting The Needle Bar Height

    Note: If the vertical cam (3) and horizontal cam (5) are turned too far in the direction of <A>, it may cause the needle to break. 3. After adjusting, securely tighten the set screws (4) and (6). Needle timing is (Standard) Needle timing advanced is retarded 3868M SL-1110...
  • Page 27: Adjusting The Needle And Rotary Hook Timing

    (3) with the center of the needle (4). The distance between the tip of the rotary hook (3) and the needle (4) should be approximately 0 - 0.05 mm. 3. Securely tighten the set screws (5). 3869M SL-1110...
  • Page 28: Adjusting The Rotary Hook Lubrication Amount

    * Turn the adjusting screw (3) and check the lubrication amount repeatedly until the lubrication amount is correct. Less oil 4. Check the lubrication amount again after the sewing 3870M machine has been used for approximately two hours. SL-1110...
  • Page 29: Troubleshooting

    Is the thread take-up spring too weak? Adjust the tension of the thread take-up spring. Is the needle and rotary hook timing correct? Adjust the height of the needle bar. Adjust the clearance between the needle and the tip of the rotary hook. 0470M SL-1110...
  • Page 30 Is the sewing speed too fast? Reduce the sewing speed slightly. Is the angle of the feed dog correct? Tilt the front of the feed dog down slightly. 0978M Material slippage Is the presser foot pressure too strong? Adjust the presser foot pressure. 0750M SL-1110...
  • Page 31 If the needle breaks, search for all pieces until the whole of the needle is found again. Furthermore, we recommend we recommend that through steps be taken to account for such needles to comply with product liability regulations. 0469M SL-1110...
  • Page 32: Instruction Manual

    INSTRUCTION MANUAL http://www.brother.com/ SL-1110, S-7550A SA8760-101 2007.06.BC(1)

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Sl-1110aS-7550a

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