
59
Poor Upper
Thread Detection
Defective Jump
Twisted
Embroidery
①
Defective roller rotation
②
Inappropriate contact of the
thread tension adjusting
plate to the connector and
the inappropriate operation
of the thread tension
adjusting plate
①
Faulty SMPS for jump
②
Faulty jump motor wiring
terminal and jump motor
③
Bad connector contact
④
Faulty switch on the thread
tension adjusting plate and
defective board
①
Bad tape
②
Inappropriate X-Y belt
tension
③
Foreign material stuck on
the X-Y rail
④
Bad X-Y driver
⑤
Heavy embroidery frame
■
Disassemble the body of the
thread sensing roller and
clean the thread sensing
roller and the bush bearing
■
Check the contact status of
the connector line on the
tension adjusting plate, and
replace the board
■
Replace the SMPS for jump
within the controller box
■
Check the wiring terminal
and replace the jump motor
■
Check the contact status of
the conductor
■
Replace the switch and the
board
■
Correct the tape
■
Adjust the tension
■
Clean the rail
■
Replace the driver
■
Slow down the speed of the
main shaft rotation
■
Check the rated
voltage of the fuse
1) For 3-phase
= 250V 15A
2) For 1-phase
= 250V 30A
Corrective Action and Check Point
Cause of Trouble
Type
Remarks