18. Troubleshooting

18. Troubleshooting

Problem

Cause

 

Check

 

 

 

Remedy

Page

 

 

Button clamp does not rise.

Button clamp does not drop.

Button clamp lift amount is incorrect.

Thread wiper does not operate correctly.

Lower thread winds to one side.

Lower thread winding amount is incorrect.

Threads comes unthreaded.

Button clamp lifter amount is too great.

Presser is contacting thread wiper.

Presser lifter link is not moving back.

Incorrect position of button clamp holder hook assembly

The thread wiper is obstructing the needle.

Thread wiper position is incorrect.

Bobbin winder thread tension stud height is incorrect.

Bobbin presser position is incorrect.

Stitches being skipped at the sewing start.

Uneven upper thread length.

Distance between button clamp and top of needle plate

Thread wiper standby position

Link return spring is unhooked.

Distance between button clamp and top of needle plate

Clearance between thread wiper and needle tip

Thread wiper position

Bobbin winder thread tension stud height

Thread winding amount

Refer to "Skipped stitches occur".

Upper thread length

 

Adjust the height of the

46

 

button clamp to within

 

 

13 mm.

 

 

 

 

 

Adjust the position of

48

 

the thread wiper.

 

 

 

 

 

 

 

 

 

Hook the link return

 

 

spring properly.

 

 

 

 

 

 

 

 

Adjust the button

46

 

clamp lift amount.

 

 

 

 

 

 

 

 

 

Adjust the height of the

48

 

thread wiper.

 

 

 

 

 

 

 

 

 

Adjust the operating

48

 

distance of the thread

 

 

wiper.

 

 

 

 

 

Adjust the height of the

29

 

thread tension stud.

 

 

 

 

 

 

 

 

 

Adjust the position of

29

 

the bobbin presser.

 

 

 

 

 

 

 

 

 

Refer to "Skipped

 

 

stitches occur".

 

 

 

 

 

 

 

 

Adjust the sub-tension.

29

 

 

 

 

68

LK3-B448E MARKII/BA-16

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Brother LK3-B448E instruction manual Troubleshooting

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.