Brother KE-430F Service Manual page 170

15. ELECTRIC MECHANISM
Error status #17 Error code appears on the display after the machine operates.
Probable causes
10. If "E150" is displayed after the
sewing machine operates, the
motor is abnormally overheating.
Error status #18 The machine cannot produce correct stitches.
Probable causes
1. Malfunction of synchronizer
2. If uneven seams are being sewn,
there is a malfunction of the pulse
motor or the mechanism
incorrectly adjusted.
160
Check/ repair/ adjust
a. Turn off the power and let the motor stand for
30 minutes or more.
b. Turn the power back on, and OK if operation
is normal.
c. If the area around the motor is not hot, carry
out steps 1 to 5 in #17.
* Avoid repeated sewing of sewing data that
contains 15 stitches or less.
Check/ repair/ adjust
Refer to step 1 in #17.
a. Refer to step 4 in #6.
is b. If the uneven seams are due to insufficient
work clamp pressure, adjust while referring to
"11-10. Adjusting the work clamp lift amount
(KE-430F)" or "11-11. Adjusting the button
clamp lift amount (BE-438F)".
c. If there is play in the feed mechanism, adjust
the feed mechanism.
KE-430F, BE-438F
Parts to be replaced
Resolver stator 430 assembly
Motor PCB assembly
Motor 430 assembly
Parts to be replaced