Performing maintenance inside a concrete-mixer drum is an often necessary task, but one which must be done with great care. Even so, there are risks, and if a rescue is necessary, the guidance this video offers can help assure a good outcome. What you will learn and see: - Why a person would be in a mixer drum - Lock Out/Tag out. - Confined space regulations - Personal Protective Equipment - Proper Drum Chipping Procedures - Emergency Response Procedures - Two Simulated Rescuers - Various Types of Mixers and Usage.