Справочник Пользователя для Brother KE-430FX

11. TROUBLESHOOTING 

 

 

76

KE-430FX/KE-430FS, BE-438FX

• Please check the following points before calling for repairs or service. 

• If the following remedies do not fix the problem, turn off the power switch and consult a qualified technician or the place of 

purchase. 

Turn off the power switch and disconnect the power cord before carrying out troubleshooting, otherwise the 

machine may operate if the foot switch is depressed by mistake, which could result in injury. 

 

Problem 

Cause 

Remedy 

rise. (KE-430FX･FS) 
 

Work clamp operation is sluggish. 

Grease the sliding part of the work 

clamp. 

P. 59 

Too much friction between work clamp 

lifter plate and work clamp arm lever 
plate. 

Grease the work clamp lifter plate and 

work clamp arm lever plate. 

 

 

Work clamp is contacting thread wiper. 

Adjust the position of the thread wiper. 

P. 70 

rise. (BE-438FX) 

Work clamp is contacting thread wiper. 

Adjust the position of the thread wiper. 

P. 70 

 (KE-430FX･FS) 

Incorrect position of work clamp arm 

lever plate 

Adjust the work clamp lift amount. 

P. 69 

Incorrect position of button clamp holder 

hook. 

Adjust the button clamp lift amount. 

P. 69 

operate correctly. 

The thread wiper is obstructing the 

needle. 

Adjust the height of the thread wiper. 

P. 70 

Adjust the operating distance of the 

thread wiper. 

P. 71 

Thread wiper position is incorrect. 

Adjust the operating distance of the 

thread wiper. 

P. 71 

one side. 

Height of bobbin winder tension 

assembly is incorrect. 

Adjust the height of the bobbin winder 

tension assembly. 

P. 28

 

Bobbin presser position is incorrect. 

Adjust the position of the bobbin 

presser. 

P. 28

 

Stitches being skipped at the sewing 

start. 

Refer to “Skipped stitches occur” 

P. 77 

Uneven needle thread. 

Adjust the sub-tension. 

P. 30

 

Needle thread is too short. 

Use a thread nipper device. 

P. 31