An operator is setting up a crane on a sloped gravel surface. The manufacturer's manual states a maximum permissible slope of 0.5% for general operations. If the operator measures a slope of 1.5%, which action is appropriate?

Question: An operator is setting up a crane on a sloped gravel surface. The manufacturer's manual states a maximum permissible slope of 0.5% for general operations. If the operator measures a slope of 1.5%, which action is appropriate?

Answer options:

• Proceed with caution, as it's only slightly above the limit. ✅ Obtain additional cribbing material to build up the low side adequately.
• Reduce the rated capacity by 20% to compensate for the slope.
• Ensure the boom is always pointed uphill during the lift.

Correct answer: Obtain additional cribbing material to build up the low side adequately.

Explanation: If the slope exceeds the manufacturer's specified limit, the area must be leveled using appropriate fill and compaction or by building substantial cribbing on the lower side to bring the outrigger pads within the acceptable level tolerance. Simply proceeding or reducing capacity without proper leveling is unsafe.