Brother LK3-B448E instruction manual Winding the lower thread

Page 37

7. Correct use

7-4 . Winding the lower thread

CAUTION

Do not touch or place anything against any of the moving parts while winding the lower thread, otherwise

personal injury or damage to the machine may result.

1.Place the bobbin all the way onto the shaft.

2.Thread the thread as shown in the illustration at right, wind the thread around the bobbin several times in the direction of the arrow, and then press the bob- bin presser q.

3.Turn on the power switch.

(The POWER indicator on the operation panel will illuminate.)

q

4.Check that the button is not inserted and the needle does not touch the button clamp, and then while pressing the BOBBIN. WIND switch w, depress the foot switch e to start the ma- chine. Keep depressing the foot switch e until the lower thread stops being wound onto the bobbin.

Release the BOBBIN. WIND switch w after the machine starts operating. If you release the foot switch before winding is com- pleted, depress it once more while pressing and holding the BOB- BIN. WIND switch w.

BOBBIN.WIND

we

5.The bobbin presser q will automatically return to its original position after a set amount of thread (80 - 90% of the bobbin capacity ) has been wound on.

6.Release the foot switch e.

7.Remove the bobbin, hook the thread onto the knife r, and then pull the bobbin in the direction of the arrow to cut the

thread.r

<< If the thread winds onto the bobbin unevenly >>

If the thread winds onto the bobbin unevenly, loosen the nut q and turn the bobbin winder thread tension stud w to adjust.

*If the thread winds on as shown in A, turn the bobbin winder thread tension stud w clockwise; if it winds on as shown in B, turn the bobbin winder thread tension stud w counterclockwise.

8. To wind more thread onto

t

the bobbin, loosen the set

 

screw t and pull the bob-

 

bin presser q outward.

 

 

q

w

Case A

q

Case B

LK3-B448E MARKII/BA-16

30

Page 36 Page 38
Image 37
Page 36 Page 38
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 partSpecifications SpecificationsSpecifications NeedleProgram 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 program number Operating procedureSetting the X-scale and Y-scale Setting the sewing speedOperating the vibrating bowl Operating the button feederTo ensure safety during use When checking by operating only the feed mechanismChecking the sewing pattern Checking the sewing patternCorrect use Installing the needleSelecting the needle and thread Threading the upper 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 Cleaning the rotary hook Maintenance and inspectionCleaning the control box air inlet port Maintenance and inspectionWipe 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 Horizontal feed position Adjustment Adjusting the needle locationButton hole gap Vertical feed positionReplacement 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 bobbin thread counter Using the countersUsing the production counter Using the countersUsing user programs Using user programsRecording a user program P1 P2Clearing the user programs Using user programs Using a user programUsing the cycle sewing function Using the cycle sewing functionPress the P1 switch o Recording a cycle sewing programClearing a cycle sewing program Using the cycle sewing function Using a cycle sewing programOperation panel DIP switches Changing functions using the DIP switchesSetting the presser mode Changing functions using the DIP switchesDIP switches inside the control box Changing special functions using the memory switches Clearing all memory settingsMemory switches 00 0F P1 P2 P3 P4Memory 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.
Top Page Image Contents