During the test run of the vertical lathe, various faults may occur. Here are some common problems:

1. Tool collision or breakage: During the test run of the vertical lathe, the tool may collide with the workpiece or fixture, causing damage or breakage of the tool. This may be caused by program errors, improper process parameter settings, or unstable fixture installation.

2. Abnormal spindle noise: Abnormal spindle noise of the vertical lathe may be caused by bearing failure, lubrication system problems, or poor spindle installation. This may affect the processing quality and increase the loss of equipment.

3. Servo system failure: The vertical lathe servo system is one of the key components of the vertical lathe. Failures such as motor loss of step, encoder failure, or cable connection problems may occur. This will lead to reduced processing accuracy or shutdown.

4. Guide rail wear: The guide rail of the vertical lathe is an important component that supports the movement of the spindle and the worktable. Long-term test runs may cause guide rail wear, affecting the processing accuracy and stability of the machine tool.

5. Cooling system problems: The cooling system of the vertical lathe is a key equipment to ensure the cooling and lubrication of the workpiece and tool during the cutting process. Pump failure, pipe blockage, or coolant leakage may occur.

6. Electrical system failure: Failure of the electrical system of the vertical lathe may cause the machine tool to fail to start, the operation panel to fail, or the control system to crash, affecting the commissioning.

7. Program error: Programming errors of the vertical lathe may cause incorrect machine tool movement, tool path errors, or incorrect processing parameter settings, affecting the effect and results of the commissioning.

8. Lubrication system failure: Failure of the lubrication system of the vertical lathe may cause increased friction of various machine tool components, poor lubrication, or component damage, affecting the normal operation of the machine tool.

For the above possible failures, sufficient preparations should be made before the commissioning, including checking the installation and connection of various machine tool components, debugging the control system and servo system, and checking the tools and fixtures. At the same time, during the commissioning process, it is necessary to strictly follow the operating procedures, monitor the machine tool operation status at any time, and promptly discover and solve possible problems to ensure that the commissioning is carried out smoothly and obtain good commissioning results.