After locking out a breaker at the M.C.C., what should you do before commencing with a coupling alignment?

Before commencing with a coupling alignment after locking out a breaker at the Motor Control Center (M.C.C.), it is essential to try the local command station. This is critical because it serves as a safety precaution to ensure that power has been properly disconnected and that there is no possibility of unexpected equipment operation. Verifying that the local controls are inoperable confirms that your lockout/tagout procedures have been successful.

If the local command station were to still function, it could indicate that there are remaining sources of power or that the lockout procedures were not thoroughly applied, which could lead to hazardous situations during the alignment process. Therefore, checking the local command station is a vital step in maintaining safety protocol before starting any mechanical work, ensuring that personnel are protected from electrical hazards.