
65
Embroidery
Contraction
Poor Trimmer
Operation
①
Strong tension of the upper
and lower thread
②
Too strong pressure of the
presser foot
③
Faulty needle
Abrasion and damage to the
tip of the needle or too big
needle for the thread used
④
Too big needle hole on the
needle plate for the needle
used
①
Fuse cut-off for trimmer
circuit
②
Bad trimmer motor
connection and poor motor
operation
③
Bad connector connection
④
Red light of the trimmer
drive box's indicator lamp
■
Adjust the tension of the
upper and lower thread
■
Replace the presser foot
pressure spring
■
Replace the needle
■
Use the needle of
appropriate standards
■
Check the
fuse
condition on the joint board
■
Check the terminal for
trimmer motor connection
and replace the motor
■
Check the status of the
connector connection
■
After removing the cause of
trouble to the trimmer
system, press the reset key
to change the color of the
indicator light to be green
■
The hole on the
needle plate of SWF/
Series is 2.0mm.
The appropriate
thread and needle for
the SunStar needle
plate are as below:
■
Check the rated
voltage on the fuse
of the joint board
1) For 3-phase:
: 250V 10A
2) For 1-phase
: 250V 10A
Corrective Action and Check Point
Cause of Trouble
Type
Remarks
Cotton Thread: #50~#70
Rayon: #75~#120
Needle: DB
×
K5 #9~#14