Brother LK3-B448E Adjusting the needle bar height, Adjusting the needle bar lift amount

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10. Adjustments

10-1 . Adjusting the needle bar height

q

w

A

e

 

Turn the machine pulley to move the needle bar to the lowest position. Then remove the rubber plug w, loosen the set screw e and then move the needle bar up or down to adjust so that the highest reference line (reference line A) is aligned with the lower edge of the needle bar bush q.

10-2 . Adjusting the needle bar lift amount

q

 

t

 

 

 

w

 

 

t

e

 

r

 

B

 

y

t

 

 

e

 

Adjust the needle bar lift amount as described below so that the tip of the rotary hook is aligned with the center of the needle when the machine pulley is turned to raise the needle bar from its lowest position until the second reference line from the top of the needle (reference line B) is aligned with the lower edge of the needle bar bush q.

1.Open the support w in the direction of the arrow, and remove the felt support e.

2.Loosen the screw r , and move the driver to adjust so that the tip of the rotary hook is aligned with the needle center line.

*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 MARKII/BA-16

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Contents LK3-B448E Symbols IndicationsLightning may cause problems with correct operation Environmental requirementsSewing IiiLK3-B448E MARKII/BA-16 Contents Changing functions using the DIP switches Name of each part Name of each partSpecifications SpecificationsSpecifications NeedleProgram list Specifications Program No Optional parts Installation InstallationPower table Installing the motor Installing the motor pulleyInstalling the control box Installing the oil pan Installing the cushionsInstalling the machine head Installing the head restInstalling the control box for vibrating bowl Installing the liquid cooling tank, optionalInstalling the vibrating bowl Installing the button feeder Installing the shooterConnecting the cords P11Installation Button feeder connection Control box for vibrating bowl connectionPower switch connector control box Installing the button feeder coverInstallation Power switch connection Installing the operation panel Connecting the ground wireInstalling the V-belt Installing the belt cover Installing the foot switchInstalling the motor cover Installing the spool stand Installing the eye guardAdjustment by the accessory spring Lubrication LubricationLubrication points Applying grease Draining the oilOperation OperationName and function of each operation panel item S E TY-SCALE Operating procedure Setting the program numberSetting the X-scale and Y-scale Setting the sewing speedOperating the button feeder Operating the vibrating bowlWhen checking by operating only the feed mechanism To ensure safety during useChecking the sewing pattern Checking the sewing patternInstalling the needle Correct useSelecting the needle and thread Threading the upper threadWinding the lower thread Lower thread tension Upper thread tension Replacing the bobbin case and threading the threadThread tension reference guide Adjusting arm thread guide R Thread take-up amountBefore starting sewing SewingSewing Maintenance and inspection Cleaning the rotary hookCleaning the control box air inlet port Maintenance and inspectionChecking the needle Cleaning the eye guardWipe the eye guard clean with a soft cloth Tileing back the machine head AdjustmentsAdjustments Adjusting the needle bar height Adjusting the needle bar lift amountAdjusting the shuttle race thread guide Adjusting the driver needle guardAdjusting the needle clearance Adjusting the thread take-up amount Adjusting the movable knifeAdjustments Replacing the movable knife and fixed knife Adjusting the button clamp lift amount Adjustment Adjusting the holding pressureAdjusting the position of the button holder Adjusting the button clamp height Adjusting the needle up stop position Adjusting the thread wiperAdjusting the vibrating bowl If buttons are not fed properly, check the followingAdjustment for excess buttons in the button shooter Button replacement Button clamp adjustmentIf button hole arrangements differ Adjustment Adjustment when the button thickness changesAdjusting the button carrier plate Adjustment Adjusting the feeder position adjustment Adjustment Adjusting the needle location Horizontal feed positionButton hole gap Vertical feed positionReplacement the V-belt Sewing machine Belt Checking the input sensor and DIP switch input P1 P2 P3 P4Checking the input voltage Moving stitch patterns Using the counters Using the bobbin thread counterUsing the production counter Using the countersUsing user programs Using user programsRecording a user program P1 P2Using user programs Using a user program Clearing the user programsUsing the cycle sewing function Using the cycle sewing functionPress the P1 switch o Recording a cycle sewing programUsing the cycle sewing function Using a cycle sewing program Clearing a cycle sewing programChanging functions using the DIP switches Operation panel DIP switchesSetting the presser mode Changing functions using the DIP switchesDIP switches inside the control box Clearing all memory settings Changing special functions using the memory switchesMemory switches 00 0F P1 P2 P3 P4Memory switches 20 2F Memory switches 30 4FTable of error codes Table of error codesPanel display Text display Errors generated when optional equipment is connectedSegment LED alphabet LK3-B448E MARKII/BA-16 Troubleshooting Troubleshooting40,46 Needle drops into Hole of the button15-1, 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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