When operating controls are accessible to unauthorized personnel, what type of controls must be used for a power type manlift?

When operating controls for a power-type manlift are accessible to unauthorized personnel, keyed controls are essential for safety. Keyed controls provide an added layer of security, allowing only individuals with the proper key to operate the equipment. This minimizes the risk of accidents or misuse by individuals who may not be trained or authorized to use the manlift, reducing liability and enhancing workplace safety.

The design of keyed controls ensures that the manlift cannot be activated or operated without the specific key, which can be securely managed and distributed only to trained operators. This is particularly important in environments where multiple personnel may be in the vicinity of the equipment, as it prevents unintentional or unauthorized operation, which could lead to serious injuries or property damage.

In contrast to keyed controls, other types of options like remote controls, manual controls, or foot pedals do not inherently restrict access or operation to trained users in the same effective manner, making them less suitable in situations where unauthorized access is a concern.