Manufacturers reduced shipping loads on outriggers_________on rubber__________.

• A. 85% and 75%
• B. 60% and 40%
• C. 70% and 60%
• D. 50% and 25%

Answer: (A)

When mobile cranes are shipped, they’re not set up for lifting and ride on their transport tires. Because the crane isn’t operating in its normal stance and the forces on stabilization points are different during transport, manufacturers specify conservative, reduced load limits for safety. The typical guidance uses a fairly large reduction: 85% for the loads related to outriggers and 75% for the loads when the crane is on rubber (tires). This reflects how dynamic conditions and weight distribution change during shipping, demanding tighter limits than during actual operation. The other listed reductions are smaller than what manufacturers commonly use for transport, so they don’t align with the standard shipping practice.