Which practice is prohibited during crane operation?

Prepare for the California Structural Steel Contractor (C-51 License) Exam. Study with flashcards and multiple-choice questions with hints and explanations. Get ready to succeed!

Multiple Choice

Which practice is prohibited during crane operation?

Explanation:
Oiling or lubricating a crane while it is in operation is unsafe because maintenance access requires reaching into or near moving parts. Doing this while the crane is lifting or moving can expose you to entanglement, pinch injuries, and slips if oil drips onto the ground or onto controls, brakes, or electrical components. Maintenance tasks like lubrication must be done with the power off, the crane secured, and the area clear, typically during downtime or scheduled maintenance. Pre-lift inspections are a standard safety step before a lift to verify that the crane, rigging, and load path are in good condition, so they’re performed as part of lift planning rather than during active operation. Lubricating after downtime is a routine maintenance activity that is carried out when the crane is not operating. Rearranging loads mid-lift is dangerous and should be avoided while a load is suspended, but the explicit prohibition highlighted here is lubricating while the crane is running.

Oiling or lubricating a crane while it is in operation is unsafe because maintenance access requires reaching into or near moving parts. Doing this while the crane is lifting or moving can expose you to entanglement, pinch injuries, and slips if oil drips onto the ground or onto controls, brakes, or electrical components. Maintenance tasks like lubrication must be done with the power off, the crane secured, and the area clear, typically during downtime or scheduled maintenance.

Pre-lift inspections are a standard safety step before a lift to verify that the crane, rigging, and load path are in good condition, so they’re performed as part of lift planning rather than during active operation. Lubricating after downtime is a routine maintenance activity that is carried out when the crane is not operating. Rearranging loads mid-lift is dangerous and should be avoided while a load is suspended, but the explicit prohibition highlighted here is lubricating while the crane is running.

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