Why does the upper thread keep breaking on my Brother LK3-B434E MKII Sewing Machine?
If the upper thread of your Brother Sewing Machine breaks, it may be due to incorrect thread take-up height. Adjust the tension and height of the thread take-up spring.
What to do if upper thread is not tight on Brother Sewing Machine?
If the upper thread on your Brother Sewing Machine is not properly tight, adjust the upper thread tension.
Why does the lower thread break on my Brother LK3-B434E MKII?
If the lower thread of your Brother Sewing Machine breaks, it may be because the corners of needle hole plate or bobbin care are damaged. File smooth or replace the affected part.
What to do if needle is bent on Brother LK3-B434E MKII?
If the needle of your Brother Sewing Machine is bent, replace it with a new one.
Why thread wiper does not work correctly on Brother LK3-B434E MKII?
If the thread wiper on your Brother Sewing Machine does not operate correctly, it might be due to an incorrect thread wiper position. Adjust the operating distance of the thread wiper.
Why is the upper thread too short on my Brother LK3-B434E MKII?
If the upper thread on your Brother Sewing Machine is too short, it may be because the thread take-up lever height is incorrect. Adjust the thread take-up lever stroke.
Why is the upper thread not trimming on my Brother LK3-B434E MKII Sewing Machine?
If the upper thread on your Brother Sewing Machine is not trimmed, it could be that the movable knife does not pick up the thread. Adjust the position of the movable knife.
Why does the lower thread wind to one side on my Brother LK3-B434E MKII Sewing Machine?
If the lower thread on your Brother Sewing Machine winds to one side, the bobbin winder thread tension stud height might be incorrect. Adjust the height of the bobbin presser.
How to fix sluggish work clamp on Brother Sewing Machine?
If the sliding part of the work clamp operation on your Brother Sewing Machine is sluggish, grease the sliding part of the work clamp.
Why doesn't the work clamp rise on my Brother Sewing Machine?
If the work clamp on your Brother Sewing Machine does not rise, it might be due to too much friction between the presser plate and presser arm lever support. Grease the presser plate and presser arm lever support.
General| Display | No |
|---|---|
| Embroidery Capability | No |
| Free Arm | Yes |
| Stitch Length | 4 mm |
| Needle | DB x 1 |
| Included Accessories | needles, bobbins |
Explains the meaning of safety indications and symbols used in the manual.
Covers important safety notes, environmental requirements, and installation precautions.
Lists key technical specifications including stitch formation, speed, pattern size, and power requirements.
Identifies key lubrication points and provides instructions for proper oiling of the machine.
Describes the purpose and function of each button and indicator on the machine's operation panel.
Guides the user through basic operating procedures like setting program number, scale, and speed.
Provides instructions for cleaning the rotary hook assembly to ensure smooth operation.
Details the regular lubrication points and methods for maintaining the machine.
Guides on adjusting the needle bar height and its lift amount for precise sewing.
Details adjustments for the driver needle guard and the clearance between the needle and rotary hook.
Details the functions that can be modified using the DIP switches located on the operation panel.
Lists functions adjustable via DIP switches located inside the machine's control box.
Details special functions that can be activated by setting memory switches 00 through 0F.
Lists special functions controllable via memory switches 10 through 1F.
Details additional special functions available through memory switches 20 through 2F.
Explains how to set values for memory switches 30 through 4F to customize machine behavior.
Lists common error codes, their causes, and remedies for troubleshooting machine malfunctions.
Continues the list of error codes, causes, and remedies, including those related to power and circuit issues.
Lists error codes specifically related to issues when optional equipment is connected to the machine.
Addresses common problems related to work clamp operation and thread wiper functionality.
Provides solutions for problems like upper/lower thread breaks and skipped stitches during sewing.
Offers remedies for thread jamming, poor seam finishes, and incorrect thread tightness.
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