When should pre-operational testing be performed according to ASME B30.3?

Pre-operational testing should be performed after erection and each climbing operation to ensure that the crane is in safe working condition before it is used. This process helps to confirm that all systems and components are functioning properly and meet safety standards. Conducting these tests after each climbing operation is essential because adjustments or changes made during climbing could affect the crane’s stability or performance. This emphasis on safety and operational integrity aligns with the guidelines set forth in ASME B30.3, which focuses on maintaining safe practices in tower crane operations.

Other time frames for testing, such as before each shift or weekly checks, might not be sufficient given the unique challenges associated with crane erection and climbing operations. Focusing on these specific moments ensures that the crane is adequately assessed for safety immediately following any significant changes to its positioning or structure.