If the sanding disk on a power sander becomes loose during operation, what is the appropriate action?

• A. Continue sanding and hope the disk stays attached
• B. Reduce pressure and continue sanding
• C. Shut off the sander and check the disk mount
• D. Stop, tighten or replace the sanding disk

Answer: (D)

A loose sanding disk creates a serious safety risk because it can detach or shatter at high speed, potentially causing severe injury. The proper action is to stop the sander, disconnect the power, and inspect the disk mount. Tighten the retaining hardware or replace the disk if it’s damaged, cracked, or worn. Once the disk is securely mounted and the backing pad is in good condition, reattach everything correctly and resume with the appropriate speed and light, even pressure. Continuing to sand with the disk loose or hoping it stays attached ignores the danger and won’t fix the underlying problem. Always verify the disk is rated for the sander’s RPM and that all mounting components are secure before use.