Repair controls are a set of procedures that are designed to ensure the proper maintenance and repair of a system or device. They are an important part of any maintenance and repair process, as they provide a framework for the process and help to ensure that all necessary steps are taken. Repair controls are typically established by the manufacturer of the system or device, and are designed to provide guidance to technicians and other personnel involved in the repair process. Repair controls typically include instructions for testing, diagnosing, and repairing the system or device, as well as guidelines for the use of tools and replacement parts. Additionally, repair controls may include information on safety precautions and the proper disposal of hazardous materials. Repair controls are an essential part of any maintenance and repair process, as they help to ensure that the system or device is repaired correctly and safely.