When checking the main and auxiliary hoist brakes, what should an operator do?

When checking the main and auxiliary hoist brakes, it is crucial for an operator to lift the load off the ground and apply the brake. This practice allows the operator to assess whether the brakes effectively hold the load in place when pressure is applied. Confirming that the brakes can adequately maintain the lifted load is essential for ensuring safety during crane operations. This step not only tests the functionality of the brakes under actual working conditions but also helps identify any issues that may need to be addressed before the crane is used for lifting tasks.

Other options, while they may involve aspects of crane maintenance, do not specifically test the brake performance in the context of load-bearing scenarios. Inspecting hydraulic fluid levels is important for overall crane operation but does not directly assess brake function. Testing the crane without a load does not provide an accurate indication of how the brakes will perform when handling weight. Adjusting the brake tension is necessary maintenance but only after ensuring they are currently functional with the load applied. Therefore, applying the brake while the load is lifted is the most effective method to ensure operational safety and reliability for crane operations.