102
Puckering
Trimming failure
①
Excessive thread tension
②
Excessive pressure of
presser foot
③
Needle failure –
worn out/damaged needle
tip needle is too large for
thread
④
Needle hole is too large for
needle
①
Short-circuit of trimming
fuse
②
Poor trimmer motor and
connection
③
Bad connection
④
Red light on trimmer driver
box
■
Adjust tension
■
Change presser foot spring
■
Change needle
■
Use adequate size of
needle
■
Check and change fuse
in trimmer board
■
Check and change trimmer
driver motor
■
Check connection
■
Address the error cause.
Press RESET to turn the
light green.
■
See 8.1.8) (p.27)
■
SWF needle holes
are 2.0mm large.
SWF/
specification
for needle & thread
are:
■
Check fuse spec
in trimmer board
1) 3-phase:
:
250V 10A
2) 1-phase:
:
250V 10A
Inspection & Repair
Cause
Error Type
Reference
Cotton : #50-70
Rayon : #75-120
needle : DB
×
K5 #9~#14