Brother BE-438F - Manual (Page 36)

4. PREPARATION BEFORE SEWING
27 KE-430F, BE-438F
<Threading mode>
Threading mode is safe because the sewing machine will not start even when the foot switch is depressed.
1 Turn on the power switch.
2
THREAD/CLAMP indicator flashes
Menu indicators switch off
Press the THREAD/CLAMP key.
• The work clamp /button clamp will lower.
3 Threading the thread.
4 Ending threading mode
THREAD/CLAMP indicator switches off
Press the THREAD/CLAMP key.
• The work clamp/button clamp will return to where it was
before threading mode was started.
4421Q
All indicators switch off
2340B
2389B
2390B