4.3. Climbing Tower Cranes

Try these first

1. 1.

   What should you do if the soil is weak under the crane?

   Hint

   Think about what materials can help support heavy loads.

2. 2.

   What does OSHA stand for?

   Hint

   This agency focuses on workplace safety.

3. 3.

   What is the minimum distance a crane should maintain from high voltage lines?

   • 1 meter
   • 3 meters
   • 5 meters

   Hint

   Safety regulations will guide the answer.

4. 4.

   True or False: Load moment indicators alert you when lifting capacities are exceeded.

   • True
   • False

   Hint

   Think about what safety devices tell you when you're close to a limit.

5. 5.

   Your crane's maximum rating is 20,000 kg. If you need to lift a load weighing 5,000 kg with rigging equipment that weighs 2,000 kg and operates at a radius of 25 meters, will this exceed the lifting capacity? What adjustments should be made?

   Hint

   Factor in the rigging equipment with the load weight!

6. 6.

   A construction site requires lifting an object to 60 meters with a 30-meter operating radius. How can you determine the minimum boom length necessary? Use the provided crane range diagram.

   Hint

   This visual tool is your best guide for determining lift heights!