How can the amount of counterweight needed to lift the boom be verified?

Using the load chart is the most accurate method for verifying the amount of counterweight needed to lift the boom. Load charts are specifically designed for this purpose and provide detailed information on the relationship between the load being lifted, the boom length, and the required counterweight. These charts take into consideration various factors such as the configuration of the machine, the angle of the boom, and the load rating. By using a load chart, operators can ensure that they are using the correct amount of counterweight to maintain stability and safety while lifting.

Consulting the operator manual can provide useful guidelines and safety procedures, but it may not give the specific data necessary to determine counterweight needs for particular load scenarios. Weighing the boom directly is impractical and not a standard practice, as it does not account for how the load interacts with the equipment. Estimating based on experience could lead to inaccuracies, as it does not rely on specific data or calculations to ensure the proper balance and safety. Hence, the load chart remains the most reliable resource for determining the counterweight requirements accurately.