What does the boom angle indicator indicate to the operator?

The boom angle indicator provides critical information regarding the angle of the boom in relation to the horizontal plane. This information is essential for operators as it directly influences the crane's lifting capacity and stability. By knowing the angle of the boom to horizontal, the operator can make informed decisions about the load being lifted and the maximum allowable weight based on the crane’s specifications and safe operating limits.

Understanding the boom's position in relation to the horizontal plane helps the operator maintain proper control and ensures that the crane is not exceeding its safe operating conditions. This aspect is vital for preventing accidents and ensuring the safety of both the operator and ground personnel. Knowing the horizontal angle allows operators to adjust as necessary to optimize lift operations.