Overhead Cranes & Hoists

Safety Procedures in Mining Operations

Introduction to Safety Training

• The video emphasizes that the staged conditions shown are not reflective of actual mining operations but are designed to illustrate correct and incorrect safety procedures.

• It is noted that the scenes created for training purposes may appear unsafe, yet they serve an educational purpose.

Importance of Cranes and Hoists

• The narrator introduces the significance of overhead cranes and hoists in a mining environment, highlighting their complexity and necessity for safe operation.

• Acknowledgment is made regarding how often cranes are taken for granted, despite their critical role in lifting heavy equipment like blower fans and motors.

Operator Qualifications

• Operators must read and understand the manufacturer's instructions thoroughly before operating any crane.

• Hands-on training from experienced operators is essential; physical fitness, good vision, hearing, and timely reactions are crucial for safe crane operation.

Pre-operation Inspection Steps

• Before starting inspections, ensure all workers are clear of the crane's area. Check control switches to confirm they function properly.

• Inspect the crane motor for leaks or unusual signs before turning on controls; check hoist rope condition including kinks or damage.

Rigging Loads Safely

• Always verify load ratings posted on cranes before rigging loads; never exceed these limits.

Crane Operation Safety Guidelines

Preparing for the Lift

• Ensure the load is positioned correctly, checking if it is level and strong enough to support its weight.

• Attach the hoist hook directly over the load's center of gravity to minimize swinging and prevent side pulls that could stress the hoist rope.

• Verify that the hoist chain or rope is free of bends or kinks, and ensure no tools or materials are on top of the load before lifting.

Safety Protocols During Lifting

• Lift the load a few inches to test hoist brakes; any slippage indicates an overload condition.

• Avoid sudden movements with the crane; all operations should be smooth to maintain control during lifting.

• Use a tagline for guiding loads instead of hands, preventing excess movement and ensuring safety.

Communication and Signals

• Stay alert for unusual sounds indicating potential issues; stop operations if any warning signs arise.

• If visibility is compromised, have another person assist with clear communication via radio or hand signals.

• Ensure that hand signals are understood by both crane operator and signaler; refer to a detailed guide as needed.

Emergency Procedures

• The crane operator must stop immediately if a stop signal is given by anyone, regardless of their role in signaling.

• Gradually lower the hoist when over landing areas, reducing speed until safely resting on ground before removing slings.

Post-Lift Operations

• Store slings properly after use to protect them from damage; avoid leaving equipment hanging on hooks.

• Before leaving, raise the hook below limit switch height to keep it out of harm's way from people or vehicles.