
68
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
Poor connection, bad
quality of trimming solenoid
②
Bad connection
③
X, Y driver TR damaged
■
Adjust tension
■
Change presser foot spring
■
Change needle
■
Use adequate size of
needle
■
Check and change solenoid
and solenoid connection
■
Check connector
■
Change X, Y driver
■
SWF needle
holes are 2.0mm
large. SWF
specification for
needle & thread are:
Inspection & Repair
Cause
Error Type
Reference
Cotton : #50~70
Rayon : #75~120
Needle : DB
×
K5 #9~#14
Содержание MA-6
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