Z-axis Abnormal Noise Repair Plan

Step 1: Check if the Left Shoulder X-axis Top Screw is Loose

1. Remove the Left Shoulder Shell:
   1. Remove the left shoulder shell fixing screws. Move the shell upward to remove the left shoulder shell, and disconnect the left shoulder cable and break detection line.

2. Remove the Break Detection Component:

• Remove the broken material detection fixing bolt. Lift the broken material detection component upward, remove the left shoulder lower shell fixing bolt, and remove the lower shell downward.

3. Adjust the X-axis:

• Move the X-axis to the bottom and move the nozzle to the leftmost position.
• Loosen the two left shoulder screws counterclockwise by two turns, tighten the adjusting screws clockwise by two turns, and then fix the left shoulder fixing screws.
• Pull the X-axis up and down by hand to check if it still shakes. If there is still noticeable shaking, tighten the adjusting screws by one or two more turns and check again. Ensure it is not too tight to avoid causing the Z-axis to rise and get stuck.

4. Reassemble:
   1. After adjusting, secure the screws again and reassemble in reverse order according to the disassembly steps.

Step 2: Check if the Nut is Loose

1. Remove the Top Components:
   1. Remove the material rack fixing screws and the material rack. Then remove the top decorative cover fixing screws and take out the decorative cover.

2. Remove the Top Beam:

• Remove the top beam retaining bolts and remove the top beam.

3. Check and Tighten the T-nut:

• Remove the top cover fixing bolt of the loose end, check if the T-nut is loose, and re-tighten the loose bolt.

Step 3: Check if the Z-axis Rod is Loose

1. Remove the Bottom Cover:
   1. Remove the bottom cover. Unscrew the type-C wire fixing bolt and pull out the type-C wire. Pull out the Z-axis motor wire and remove the Z-axis fixing bolt at the same time.

2. Remove the Gantry:

• Remove the gantry from the base and unscrew the loose Z-axis motor fixing screws.

3. Check the Coupling:

• Inspect if the screw at the coupling is loose. If it is, fix the motor and the rod again. After verifying there are no issues, reassemble the machine in reverse order according to the disassembly steps.

By following these steps, you can diagnose and fix the issue causing abnormal noise in the Z-axis. If the issue persists, please contact us for further assistance.