An operator is securing an excavator on a trailer for transport. The excavator boom is positioned over the front of the trailer, and the bucket is resting on protective dunnage. What additional securement measure should be considered specifically for the excavator's boom and turret, beyond general chaining?

Question: An operator is securing an excavator on a trailer for transport. The excavator boom is positioned over the front of the trailer, and the bucket is resting on protective dunnage. What additional securement measure should be considered specifically for the excavator's boom and turret, beyond general chaining?

Answer options:

• Leaving the boom hydraulics pressurized to keep it rigid. ✅ Securing the boom and dipper arm articulation points with secondary chains or straps to prevent movement.
• Only chaining the tracks, as the boom's weight will hold it down.
• Placing bright flags on the end of the boom to warn other vehicles.

Correct answer: Securing the boom and dipper arm articulation points with secondary chains or straps to prevent movement.

Explanation: Even with general chaining, it is crucial to prevent articulation of the boom and dipper arms during transport to avoid instability or damage. Secondary chains or straps at articulation points provide this stability. Leaving hydraulics pressurized can cause stress, and relying solely on track chaining is insufficient for upper structure movement. Flags are for visibility, not securement.