This message is displayed when the Start Button is pressed to begin sewing or a Head Timing Function is performed, but the software detects that the grabber blade is not in it's home position. Sometimes this error will occur when there is an obstruction to the grabber blade and all you need to do is execute the steps described in step 1 of the troubleshooting chart below, and then press the Start Button and proceed where you were.
If you are getting this error frequently, troubleshoot the problem using the steps shown in the table below.
|
Step |
Action |
Symptom |
Next Action |
|
1 |
Check for a bind or obstruction of the grabber blade assembly |
Obstruction found |
Remove the obstruction |
|
No obstruction |
Go to Step 2 |
||
|
2 |
Verify proper connection of the grabber/thread feed/cc home harness and at the optical sensor PCB located at the top left section of the needlecase assembly (facing the machine from the front) |
Loose connection |
Secure the connectors. If necessary use cable ties. |
|
No loose connections |
Go to Step 3 |
||
|
3 |
Inspect the harnesses for bare, broken, or pinched wires, chaffing or other damage. |
Any found |
Replace the grabber/thread feed/cc home harness. |
|
No damage to wires |
Goto Step 4 |
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|
4 |
Conduct a "Grabber Function Test" and observe the status of the grabber as provided in the test procedures. |
Status box does not alternate between "Open and Blocked" |
Replace the optical sensor PCB. The sensor is not detecting home. |
|
Status box alternates back and forth |
Go to Step 5 |
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|
5 |
Test the optical sensor using the steps prescribed in " Testing Optical Sensors" |
Optical Sensor is dirty |
Attempt to clean it or replace it |
|
Optical Sensor good |
Contact Melco Technical Support. The Main Control PCB might be defective. |
