SunStar SWF/C Series User Manual page 144

Error Type
Poor detection Poor connection of take-
of upper thread up spring and thread
detector plate
Poor connection & quality
of tension adjusting plate
Short-circuit of fuse for
Bad jump
jump circuit
Bad solenoid and bad
solenoid wiring
Bad connection
Switch failure on tension
adjusting board and bad
circuit board
Bad tape
Bad stitch
quality
Inadequate tension on X-
Y belt
Foreign substance in X-Y
rail
Failure of X/Y driver board
Heavy load on frame
Cause
Clean the spring and the plate,
or adjust the spring tension.
Check the plate connection and
change the circuit board
Change front fuse F3 in joint
board
Check wiring and change
solenoid
Check connection
Change switch and circuit board
Correct tape
Adjust tension
Clean the rail
Change circuit board
Reduce speed of main shaft
Inspection & Repair
12-3
Reference
Check fuse spec
See 9-1)