When setting up a crawler crane, it is most economical and fastest:

When setting up a crawler crane, it is most economical and fastest:

• A. to use a second crane to assemble the boom
• B. to rig the load by hand
• C. to move the crane by hand
• D. to pull the boom into place with cables

Answer: (A)

When setting up a crawler crane, handling the boom erection with a second crane is the most economical and fastest approach because it lets the boom be fully assembled, aligned, and pinned on the ground before lifting. The boom is long and heavy, made of multiple sections, and assembling it in the air or while the main crane is being positioned increases cycle time and the potential for misalignment. Using a dedicated crane to do the ground assembly concentrates the precise, heavy rigging work in a controlled, safer environment and lets the primary crane perform the lift with minimal, well-planned moves. This reduces downtime, minimizes manpower required at height, and lowers the risk of accidents, making the overall setup faster and more cost-effective. Rigging by hand, moving the crane by hand, or pulling the boom into place with cables are slower, less controlled, and increase safety and timing issues.

When setting up a crawler crane, handling the boom erection with a second crane is the most economical and fastest approach because it lets the boom be fully assembled, aligned, and pinned on the ground before lifting. The boom is long and heavy, made of multiple sections, and assembling it in the air or while the main crane is being positioned increases cycle time and the potential for misalignment. Using a dedicated crane to do the ground assembly concentrates the precise, heavy rigging work in a controlled, safer environment and lets the primary crane perform the lift with minimal, well-planned moves. This reduces downtime, minimizes manpower required at height, and lowers the risk of accidents, making the overall setup faster and more cost-effective. Rigging by hand, moving the crane by hand, or pulling the boom into place with cables are slower, less controlled, and increase safety and timing issues.