Brother LK3-B448E instruction manual Adjustments, Tileing back the machine head

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10. Adjustments

10 . Adjustments

CAUTION

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 power cord from the wall outlet at the following times, otherwise the machine may operate if the foot switch is depressed by mistake, which could result in injury.

·When carring out inspection, adjustment and maintenance

·When replacing consumable parts such as the rotary hook and knife

Hold the machine head with both hands when tilting it back or returning it to its original position. Furthermore, after tilting back the machine head, do not push the face plate side or the pulley side from above, as this could cause the machine head to topple over, which may result in personal injury or damage to the machine.

If the power switch needs to be left on when carrying out some adjustment, be extremely careful to observe all safety precautions.

If any safety devices have been removed, be absolutely sure to re-install them to their original positions and check that they operate correctly before using the machine.

■Tileing back the machine head

1. When tilting back the machine head, loosen the screws

qq and w, remove the screw e and then remove the belt cover r first.

rw

e

2. Gently tilt back the machine head in the direction of the arrow.

NOTE:

● After tilting back the machine head, do not push the face plate side or the pulley side from above.

● Gently return the machine head to its original posi- tion.

Be careful not to clamp the cords at this time.

LK3-B448E MARKII/BA-16

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Contents LK3-B448E Indications SymbolsEnvironmental requirements Lightning may cause problems with correct operationIii SewingLK3-B448E MARKII/BA-16 Contents Changing functions using the DIP switches Name of each part Name of each partNeedle SpecificationsSpecifications SpecificationsProgram list Specifications Program No Optional parts Power table InstallationInstallation Installing the motor pulley Installing the motorInstalling the control box Installing the cushions Installing the oil panInstalling the head rest Installing the machine headInstalling the vibrating bowl Installing the liquid cooling tank, optionalInstalling the control box for vibrating bowl Installing the shooter Installing the button feederP11 Connecting the cordsControl box for vibrating bowl connection Installation Button feeder connectionInstallation Power switch connection Installing the button feeder coverPower switch connector control box Connecting the ground wire Installing the operation panelInstalling the V-belt Installing the foot switch Installing the belt coverInstalling the spool stand Installing the eye guard Installing the motor coverAdjustment by the accessory spring Lubrication points LubricationLubrication Draining the oil Applying greaseName and function of each operation panel item OperationOperation S E TY-SCALE Setting the sewing speed Operating procedureSetting the program number Setting the X-scale and Y-scaleOperating the vibrating bowl Operating the button feederChecking the sewing pattern When checking by operating only the feed mechanismTo ensure safety during use Checking the sewing patternThreading the upper thread Installing the needleCorrect use Selecting the needle and threadWinding the lower thread Thread tension reference guide Replacing the bobbin case and threading the threadLower thread tension Upper thread tension Thread take-up amount Adjusting arm thread guide RSewing SewingBefore starting sewing Maintenance and inspection Maintenance and inspectionCleaning the rotary hook Cleaning the control box air inlet portWipe the eye guard clean with a soft cloth Cleaning the eye guardChecking the needle Adjustments AdjustmentsTileing back the machine head Adjusting the needle bar lift amount Adjusting the needle bar heightAdjusting the needle clearance Adjusting the driver needle guardAdjusting the shuttle race thread guide Adjusting the movable knife Adjusting the thread take-up amountAdjustments Replacing the movable knife and fixed knife Adjusting the button clamp lift amount Adjusting the position of the button holder Adjusting the holding pressureAdjustment Adjusting the button clamp height Adjusting the thread wiper Adjusting the needle up stop positionIf buttons are not fed properly, check the following Adjusting the vibrating bowlAdjustment for excess buttons in the button shooter Button clamp adjustment Button replacementAdjusting the button carrier plate Adjustment Adjustment when the button thickness changesIf button hole arrangements differ Adjustment Adjusting the feeder position adjustment Vertical feed position Adjustment Adjusting the needle locationHorizontal feed position Button hole gapReplacement the V-belt Sewing machine Belt P1 P2 P3 P4 Checking the input sensor and DIP switch inputChecking the input voltage Moving stitch patterns Using the counters Using the countersUsing the bobbin thread counter Using the production counterP1 P2 Using user programsUsing user programs Recording a user programClearing the user programs Using user programs Using a user programRecording a cycle sewing program Using the cycle sewing functionUsing the cycle sewing function Press the P1 switch oClearing a cycle sewing program Using the cycle sewing function Using a cycle sewing programChanging functions using the DIP switches Changing functions using the DIP switchesOperation panel DIP switches Setting the presser modeDIP switches inside the control box P1 P2 P3 P4 Clearing all memory settingsChanging special functions using the memory switches Memory switches 00 0FMemory switches 30 4F Memory switches 20 2FTable of error codes Table of error codesSegment LED alphabet Errors generated when optional equipment is connectedPanel display Text display LK3-B448E MARKII/BA-16 Troubleshooting Troubleshooting40,46 Hole of the button Needle drops into15-1, Naeshiro-cho, Mizuho-ku, Nagoya 467-8561, Japan. Phone

LK3-B448E specifications

The Brother LK3-B448E is a versatile and innovative sewing machine designed to meet the needs of both home sewers and professionals alike. This comprehensive machine is especially advantageous for users who want to experiment with intricate designs and achieve high-quality results with ease.

At the core of the LK3-B448E lies its advanced computerized technology, which facilitates a seamless sewing experience. The machine features a user-friendly interface, making it accessible for not just experienced sewists but also beginners. The LCD display provides clear visibility of settings, stitch patterns, and design options, ensuring that users have full control over their projects.

One of the standout features of the LK3-B448E is its extensive library of built-in stitch patterns. With over 100 different stitches to choose from, including decorative, utility, and quilting stitches, users can easily customize their sewing to suit any project. In addition to the built-in stitches, this machine supports the use of embroidery patterns and designs, expanding creative possibilities significantly.

The LK3-B448E also incorporates advanced sewing technologies, such as automatic needle threading and a drop-in bobbin system. These features simplify the setup process, allowing users to spend more time sewing and less time managing technicalities. Furthermore, the machine offers adjustable stitch length and width, enabling personalized settings that cater to various fabric types and sewing tasks.

Another remarkable characteristic of the LK3-B448E is its adjustable presser foot pressure. This allows for better control, whether working with delicate fabrics or thicker materials. The machine’s speed controls help manage sewing speed, providing additional comfort for users as they tackle intricate patterns or detailed designs.

The LK3-B448E also supports USB connectivity, enabling users to transfer new designs and updates effortlessly. This feature ensures that the machine remains relevant with cutting-edge patterns and functionalities, extending its lifespan and usability.

In conclusion, the Brother LK3-B448E combines user-friendly design with advanced technology, offering a comprehensive sewing experience. Its extensive features, coupled with customizable settings, make it an ideal choice for both novice and experienced users looking to enhance their sewing projects. With the LK3-B448E, creating beautiful garments and intricate designs is a straightforward and enjoyable process.
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