What should be done with arbor collars after loading and unloading?

What should be done with arbor collars after loading and unloading?

• A. They should be removed.
• B. They should be loosened.
• C. They should remain fastened in place.
• D. They should be painted red.

Answer: (C)

Securing what sits on a shaft after handling ensures the tool or workpiece stays exactly where it belongs during operation. Arbor collars locate and clamp the tool along the shaft, resisting axial movement. When you finish loading or unloading, the collars should stay fastened in place so the assembly remains properly aligned and the tool cannot slide or back off during machining or subsequent steps. Loosening or removing them opens the chance of unwanted movement, misalignment, or contact with other parts, which can cause damage or injury. Painting the collars or changing their color does not provide a safety or mechanical benefit; it does not replace the need for proper fastening. So the correct practice is to leave arbor collars secured in place.

Securing what sits on a shaft after handling ensures the tool or workpiece stays exactly where it belongs during operation. Arbor collars locate and clamp the tool along the shaft, resisting axial movement. When you finish loading or unloading, the collars should stay fastened in place so the assembly remains properly aligned and the tool cannot slide or back off during machining or subsequent steps. Loosening or removing them opens the chance of unwanted movement, misalignment, or contact with other parts, which can cause damage or injury. Painting the collars or changing their color does not provide a safety or mechanical benefit; it does not replace the need for proper fastening. So the correct practice is to leave arbor collars secured in place.