Which action is prohibited when the aerial is on the short-jacked side?

Which action is prohibited when the aerial is on the short-jacked side?

• A. Operate the aerial
• B. Retract the jib
• C. Engage the stabilizers
• D. Inspect hydraulic fluid

Answer: (A)

The key idea is stability and tipping risk. When the machine is on the short-jacked side, its chassis is already tilted and the center of gravity is uneven. Moving the aerial or changing its angle adds another moment to the boom, which can push the unit toward tipping or uncontrolled movement. Because of that, operating the aerial is prohibited until the stabilizers are properly extended, the machine is leveled, and stability is verified. Routine checks like inspecting hydraulic fluid don’t involve moving the boom and are not restricted by this stabilization issue. Actions aimed at stabilizing—such as engaging stabilizers or adjusting the jib—would be steps you take to reach a safe, level setup before any aerial operation.

The key idea is stability and tipping risk. When the machine is on the short-jacked side, its chassis is already tilted and the center of gravity is uneven. Moving the aerial or changing its angle adds another moment to the boom, which can push the unit toward tipping or uncontrolled movement. Because of that, operating the aerial is prohibited until the stabilizers are properly extended, the machine is leveled, and stability is verified. Routine checks like inspecting hydraulic fluid don’t involve moving the boom and are not restricted by this stabilization issue. Actions aimed at stabilizing—such as engaging stabilizers or adjusting the jib—would be steps you take to reach a safe, level setup before any aerial operation.