What is the correct location to level a crane using a 4-foot level?

To level a crane using a 4-foot level, the correct approach is to check the upper works. This area encompasses the rotating superstructure of the crane, including the cab, the boom, and any associated attachments. Ensuring that the upper works are level is crucial because it directly affects the stability and operational efficiency of the crane.

When the upper works are properly leveled, it ensures that the load being lifted will remain stable and balanced during operations, minimizing the risk of tipping or structural instability. This is vital for safe crane operation, especially when working at various angles or when the crane is near its lifting capacity.

In contrast, leveling at the counterweights, undercarriage, or boom does not provide an accurate representation of the crane’s overall stability during operation. The counterweights are essential for balance but are not the primary focus for leveling. The undercarriage may help with the mobility of the crane but does not reflect the positioning of the upper works during lifting operations. Similarly, while the boom is critical for lifting, it is not the reference point for overall leveling of the crane setup.