Precautions during crane operations | NAFS Fire & Safety College | Training | industrial safety
Channel: NAFSMP
Date: 05/01/2021

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Precautions during crane operations
Fully extend outriggers and barricade accessible areas inside the crane's swing radius. Watch for overhead electric power lines and maintain at least a 10-foot safe working clearance from the lines. Inspect all rigging prior to use; do not wrap hoist lines around the load.

What is crane safety?
Ensure employees know they must not stand under loads and ensure operators never lift a load over an employee. You must never stand under a crane or have a load lifted over you. It's crucial your employees are aware of this and avoid walking through any zones where cranes are overhead.

What helps to improve crane safety?
Ensure items being lifted are properly secured.

When working with a mobile crane, make sure your crew understands exactly how to secure each load. Assign a supervisor or lead hand to double, and even triple-check every single load prior to lifting – a few extra minutes spent checking the load can literally save a life.

What are the hazards of lifting?
Lifting, handling, or carrying objects at work can result in musculoskeletal injuries (MSIs), including sprains and strains and other injuries. The risk of injury increases when bending, twisting, heavy loads, and awkward postures are involved. Effective ergonomic controls can reduce the risk and prevent injuries.

What are the main causes of crane accidents?
OSHA's analysis of crane accidents identified the major causes of crane accidents as:
boom or crane contact with energized power lines (nearly 45% of the cases)
under the hook lifting device.
overturned cranes.
dropped loads.
boom collapse.
crushing by the counter weight.
outrigger use, falls and rigging failures.

What is friction crane?
A friction crane is a lattice boom crane that uses clutches and foot brakes for load control instead of a hydraulic system as with modern lattice boom cranes. Friction cranes are no longer manufactured; however, many are still in use on job sites.

How are tower cranes operated?
A jib, also called a “working arm”, which is the bit that actually carries the load. A trolley runs along the jib to move the weight, while the motor contained in the machinery arm lifts the load with the help of counterweights. Here you'll also find the operator's cab.

When using a crane to move materials it is important that?
How should you move loads safely? Move crane controls smoothly. Avoid abrupt, jerky movements of the load. Follow signals only from one slinger in charge of the lift, except a stop signal.
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