Which condition is critical to check before setting up a mobile crane?

Ground conditions are critical to check before setting up a mobile crane because they directly impact the crane's stability and safety during operation. The ground must be firm, level, and capable of supporting the weight of the crane along with any loads it will lift. If the ground is unstable, uneven, or compromised in any way—such as being too soft or having loose soil—the risk of the crane tipping over or failing increases significantly.

Additionally, checking ground conditions includes assessing for any overhead obstructions, underground utilities, or other hazards that could affect crane operation. Proper ground evaluation ensures that necessary measures and precautions can be taken, such as using mats or stabilizers to enhance stability.

While factors like weather forecasts, operator experience, and material availability are also important for safe crane operations, they are secondary to the foundational aspect of ensuring that the crane is set up on a suitable and secure surface. The stability and condition of the ground can have immediate consequences on the operational safety of the crane.