An experienced excavator operator is scheduled to perform a critical lift of a generator onto a concrete pad. The supervisor has instructed to always consult the lift chart and operate within parameters. The operator retrieves the chart and notes the capacity over the side at a 7-metre radius is 2,800 kg, and over the front it is 3,500 kg. The generator weighs 3,000 kg. There is ample space to position the excavator. Which positioning strategy offers the greatest safety margin for this lift?

Question: An experienced excavator operator is scheduled to perform a critical lift of a generator onto a concrete pad. The supervisor has instructed to always consult the lift chart and operate within parameters. The operator retrieves the chart and notes the capacity over the side at a 7-metre radius is 2,800 kg, and over the front it is 3,500 kg. The generator weighs 3,000 kg. There is ample space to position the excavator. Which positioning strategy offers the greatest safety margin for this lift?

Answer options:

• Positioning the excavator to lift directly over the side. ✅ Positioning the excavator to lift directly over the front of the machine.
• Positioning the excavator at a 45-degree angle to the load.
• Using the shortest possible load radius regardless of angle.

Correct answer: Positioning the excavator to lift directly over the front of the machine.

Explanation: Excavators typically have higher lifting capacities when lifting over the front due to the added stability provided by the drive wheels and more favourable counterweight distribution. At a 7-metre radius, 3,500 kg over the front safely accommodates the 3,000 kg load, whereas 2,800 kg over the side would be insufficient. The shortest possible load radius is always preferred, but in this scenario, the angle of lift is the determining factor to ensure capacity.