─ Danger through rotating parts! If a drive is not mounted, the output shaft is not protected. If the non-mounted drive is operated, the output shaft is a source of danger (e.g. it can become caught in loose parts). Do not operate the drive if it is not mounted or take suitable measures to ensure safety.
─ Do not permanently remove the fan cover! If the fan cover is removed, hazardous areas (fast-rotating fan blades) are no longer protected. As a result of this people can be injured! Remount the fan cover after working on the drive. Do not permanently remove the fan cover to improve cooling.