When using a boom mounted auger, how must the boom be positioned to dig a plumb hole?

To dig a plumb hole using a boom mounted auger, it is essential that the boom is extended out at least 1%. This positioning helps ensure that the auger operates vertically and maintains the necessary alignment for digging straight down. By extending the boom slightly out, it allows for a more vertical operation which is crucial for achieving the desired plumb hole.

When the boom is positioned correctly, it minimizes the risk of the auger deviating from a vertical path, which could lead to issues with hole accuracy. The nature of the auger’s operation relies on this alignment to ensure that the hole is evenly formed, which is vital for applications requiring structural consistency, such as setting posts or foundations.