How to Check Hook Timing Across the Head and Reassemble the Machine

In this video, we finish the hook timing procedure by reassembling the machine and verifying the timing at the opposite end of the head. After setting the timing on one end, we recommend checking the other side as well. In this example, we start from needle number 1, raise the presser foot by setting the dial to 100, use the control panel to move to needle position 15, and then roll the indicator dial back to 200 degrees. With the thread removed from the needle, we check that the tip of the rotary hook is right behind the needle and confirm that the needle deflection is the same front to back.

We make this second check in case the embroidery head is slightly cocked and not perfectly parallel. If that happens, the timing at one end of the head can be a little different from the timing at the other end. The goal is to make sure the needle is not colliding with the rotary hook and that the timing is set properly across the head. If necessary, the head could be shimmed slightly, or if the difference is very small, we can use an average of the hook timing from both ends.

To finish the assembly after setting the hook timing or replacing the rotary hook, we roll the indicator wheel back to 100 degrees so a different needle number can be selected if needed. We then reinstall the picker first by lining up the linkage and screw, seating it gently by hand, confirming it moves freely, and tightening it without forcing the assembly. After that, we reinstall the needle plate, set the cover back in place, and secure it with the two Phillips head screws without over-tightening. Finally, we put the bobbin back in and re-thread any needles that were unthreaded during the process.