Tuesday, February 26, 2013
The versatility of hydraulic excavators is virtually unmatched in the world of construction equipment. Whether you’re talking about compact, mid-range or large hydraulic excavators, these machines are ideal for lifting, moving and placing a wide range of materials. As a result, it is important that hydraulic excavator operators are trained to properly lift loads or materials.
Lifting checklist
- The excavator should always be on a firm, level and uniformly supportive surface. Do not attempt to lift on soft or uneven ground or slopes. Use the manufacturer’s designated lifting points.
- The excavator should not be modified or altered in any way and should be properly maintained.
- Always lift squarely over the side or front of the machine. If equipped, activate the lifting mode control on the excavator before using the machine for lifting. Keep the load as low and balanced as conditions will permit, and swing the load slowly and smoothly.
- Keep bystanders away, and never swing loads over other personnel or equipment.
- If the surface area of the load is large enough, unexpected wind gusts can create excessive side load conditions. Tag lines held by workers on opposite sides of the load can help control the load and prevent side loading caused by wind gusts.
- Keep the designated lift point directly over the load. The load can become unbalanced if the line is twisted and starts to rotate. Use short slings to prevent excessive load swings and swaying.
- Always try to keep the lifting eye straight below the centerline of the arm and bucket pin. This allows the weight of the load to be supported primarily by the pin and not by the bucket cylinder, link and link pins.
- Always check for overhead restrictions such as power lines and structures.
