To Next PageTo Next PageWhy is the lower thread winding to one side on my Brother Sewing Machine?
If the lower thread winds to one side, the bobbin winder thread tension stud height might be incorrect. Adjust the height of the thread tension stud.
Why is my Brother Sewing Machine upper thread breaking?
There are several reasons why the upper thread might be breaking: * The upper thread tension may be too strong, so you should adjust it. * The needle might be installed incorrectly; make sure it is installed correctly. * The thread might be too thick for the needle; use the correct thread for the needle. * The thread take-up spring tension and height could be incorrect; adjust them. * The rotary hook, needle hole plate, or needle might be damaged; file smooth or replace the part. * If using synthetic thread, it might be melting; use a thread cooling device.
What to do if work clamp does not close on Brother KE-430B Sewing Machine?
If the work clamp isn't closing, it could be due to the presser closing roller being in the wrong position. Adjust the position of the presser closing roller.
What to do if the thread wiper is not operating correctly on my Brother Sewing Machine?
If the thread wiper isn't working right, it might be due to an incorrect thread wiper position. Try adjusting the operating distance of the thread wiper to resolve this issue.
What to do if Brother Sewing Machine does not operate when turned on?
If the machine does not operate when the power is turned on and the foot switch is depressed: * Check if the head position switch cord is disconnected. * Adjust the position of the switching plate. * Replace the head position switch if it is broken.
How to adjust lower thread winding amount on Brother KE-430B Sewing Machine?
If the lower thread winding amount is incorrect, adjust the position of the bobbin presser.
How to adjust incorrect thread tightness on Brother Sewing Machine?
Incorrect thread tightness can be due to: * Upper thread tension being too weak; adjust the upper thread tension. * Lower thread tension being too weak; adjust the lower thread tension. * Thread take-up spring tension and height being incorrect; adjust the tension and height of the thread take-up spring.
What to do if Brother KE-430B thread is jamming?
Thread jamming can occur if: * The thread take-up spring tension and height are incorrect; adjust them. * The needle and rotary hook timing are incorrect; adjust the needle bar lift amount. * The shuttle race thread guide is not separating the threads; adjust its position.
Why is my Brother KE-430B lower thread breaking?
The lower thread may break because: * The lower thread tension is too strong, so adjust the lower thread tension. * The corners of the needle hole plate or bobbin case are damaged; file smooth or replace the affected part.
Why is the thread coming unthreaded on my Brother Sewing Machine?
The thread may come unthreaded due to: * Stitches being skipped at the sewing start; refer to “Skipped stitches occur”. * Uneven needle thread; adjust the sub-tension. * The needle thread being too short; adjust the thread take-up lever stroke.
General| Type | Electronic Sewing Machine |
|---|---|
| Maximum Stitch Width | 7 mm |
| Maximum Stitch Length | 5 mm |
| Display | LCD |
| Foot Control | Included |
Explains DANGER, CAUTION indications and safety symbols used in the manual.
Provides crucial safety advice regarding environmental factors and machine installation procedures.
Warns about high voltage danger and the need to wait before opening covers.
Alerts users to the danger of moving parts and the importance of safety devices.
Refers to a warning display related to high temperatures.
Emphasizes the importance of a secure ground connection for electrical safety.
Indicates the correct direction of machine operation.
Lists essential safety components like eye guard and finger guard.
Provides a comparative overview of technical specs for KE-430B, KE-431B, KE-432B, KE-433B models.
Lists pre-programmed sewing patterns, stitch counts, and dimensions for KE-430B.
Details specifications and requirements for the power table assembly.
Step-by-step guide for mounting the control box onto the work table.
Instructions for fitting rubber cushions to the machine base.
Steps for attaching the oil pan and oil container assembly.
Guide for placing and securing cushions into the work table.
Details on mounting the switching plate for safety interlock.
Instructions for mounting the sewing machine head onto the table base.
Steps for attaching the head rest to the table.
Guide for installing the optional liquid cooling tank.
Instructions for mounting the operation panel on the work table.
Safety instructions for connecting the ground wire.
Detailed guide on connecting various cables and connectors.
Steps for attaching the belt cover to the machine.
Instructions for mounting the foot switch assembly to the table leg.
Guide for assembling and installing the spool stand.
Instructions for attaching the eye guard for safety.
Illustrates key points requiring lubrication on the sewing machine.
Identifies and explains the functions of buttons and indicators on the operation panel.
Step-by-step guide for performing sewing operations.
How to select and set a specific sewing program number.
Procedure for adjusting the X and Y scale settings for patterns.
Instructions for setting the desired sewing speed.
Advice on choosing appropriate needles and threads for different materials.
Step-by-step instructions for correctly installing a sewing needle.
Detailed steps for threading the upper thread through the machine.
Instructions for winding thread onto the bobbin.
Procedure for changing the bobbin case and threading the lower thread.
Table and guidance on optimal sewing conditions and thread tension.
Recommendations for maximum sewing speeds based on material type.
How to adjust the lower thread tension for optimal sewing.
Guide for adjusting the upper thread tension based on material.
How to adjust the height of the thread take-up spring.
How to adjust the tension of the thread take-up spring.
Instructions for adjusting the arm thread guide position.
Guide for adjusting the thread take-up amount.
How to inspect the needle for damage before sewing.
Detailed steps for cleaning the rotary hook assembly.
Instructions and points for lubricating the sewing machine.
Procedure for draining waste oil from the machine.
How to clean the air inlet port of the control box.
Instructions for cleaning air holes in the machine covers.
How to clean the eye guard.
How to adjust the vertical position of the needle bar.
Procedure for setting the needle bar lift amount.
How to adjust the driver needle guard for proper contact.
Procedure for setting the clearance between the needle and rotary hook.
How to install and align the shuttle race thread guide.
How to adjust the thread take-up lever stroke for different conditions.
Procedure for adjusting the movable knife's position.
Steps for replacing the movable and fixed knives.
How to adjust the vertical travel of the work clamp.
Fine-tuning the engagement between the movable and fixed knives.
How to adjust the vertical travel of the work clamp for the KE-432B model.
How to adjust the pressure of the work clamp for the KE-432B.
Procedure for adjusting the work clamp closing distance for KE-432B.
Information on using KE-430B work clamps with the KE-433B.
How to set the needle's stopping position.
Procedure for adjusting the thread wiper's position.
How to check machine sensor status and DIP switch inputs.
Procedure for verifying the input voltage to the machine.
How to reset all stored memory settings and user programs.
How to shift the position of sewing patterns.
How to set and use the counter for bobbin thread usage.
How to display and use the production count feature.
Explains the functions controlled by DIP switches on the operation panel.
How to configure presser lifting behavior using DIP switches.
Details functions controlled by DIP switches located inside the control box.
How to record and use custom user programs.
Steps for selecting and running a user-programmed pattern.
Procedure for deleting stored user programs.
Lists special functions controlled by memory switches 00 to 0F.
Lists special functions controlled by memory switches 10 to 1F.
Lists special functions controlled by memory switches 20 to 2F.
Explains how to set values for memory switches 30 to 4F.
How to program and use the cycle sewing feature.
Steps for operating the machine using a recorded cycle sewing program.
Procedure for deleting recorded cycle sewing programs.
Describes the optional two-pedal foot switch and its benefits.
Describes the optional two-step pedal-type foot switch.
Explains the purpose and usage of the optional liquid cooling tank.
Describes the work clamp set for easy replacement.
Describes the optional solenoid thread wiper.
Describes the optional emergency stop switch functionality.
