
51
ST9500 Doesn’t Actuate or Actuates Abnormally
Symptom
Probable Cause
Action
No power supply
Check that the power cord is properly connected
and the switch is powered on
The front door is not closed
properly
Close the front door properly so that the
interlock switch is on
Machine does not
actuate
The connection of wires,
cables or connectors are
loosen
Check the connection of wires, cables and
connectors related to power, motor, switch etc.
Sensor doesn’t give out correct
trigger signal
Check the connection of sensor
Position of sensor is not
proper
Check the sensor and make sure the screws do
not loose and the position of sensor bracket is
correct so that the Head always stops at the top
Fabric are too thick for the
motor to provide enough
torque for the needle to
penetrate
Reduce the layers of fabric
Machine actuates
abnormally
Stepping motor loses its step
Check the coupling and make sure it is not loose
Panel doesn’t Display or Works Abnormally
Symptom
Probable Cause
Action
LCD
displays
unstably
The 20Pconnector is loose
Check the 20P connection
No back light on
LCD display
The LED lighting for LCD display
is damaged
Replace
LCD
display
module
Panel buttons do
not operate
Firmware issue
Re-start the machine
Summary of Contents for ST9500
Page 17: ...17 5 Panel Operation Flow Chart...
Page 58: ...58 Whole Machine Exploded Illustration...
Page 60: ...60 Base Assembly and Body Assembly Exploded Illustration...
Page 62: ...62 Motor Assembly Exploded Illustration...
Page 65: ...65 Head Subassembly and Knife Lever Assembly Exploded Illustration...
Page 67: ...67 Base Knife Assembly Exploded Illustration...
Page 69: ...69 Left and Right Needle Holder Assembly Exploded Illustration...
Page 71: ...71 Guide Bar Assy Feed Assy and Feed Lever Assy Exploded Illustration...
Page 74: ...74 Switch Power Supply Assy and Driver Assy Exploded Illustration...