Clear communication is critical when working around concrete pumps, ready-mixed concrete trucks, and placing booms. Hand signals provide a fast, effective, and universally understood way to communicate. Whether you’re directing the boom, operating the pump, or managing the end hose, using the correct signals helps prevent accidents, improves coordination, and keeps the pour moving safely.
Know The Hazards. Stay Alert.
Before pumping begins, every crew member should understand the common hazards associated with concrete pumps and how to work safely around them.
A safe jobsite depends on visibility and awareness. Make sure the concrete pump operator always knows your location.
• Never stand between a concrete pump and a ready-mix truck, or between moving equipment.
• Before any truck(s) backs up to the hopper, ensure the area is clear and no one can become trapped between vehicles.
Never stand on or step over a concrete pipeline or hose while it is in operation. Pipeline pressures can exceed 1,000 PSI, and hoses can move unexpectedly.
Never touch pipe clamps, hoses, or other pump components during operation. If you notice a problem: Press the Emergency Stop (E-Stop) and notify the operator immediately.
Keep the hopper approximately two-thirds full to prevent air from entering the pump system. Trapped air can create dangerous pressure surges and hose whipping.
If air begins entering the system:
• Signal the operator to stop pumping immediately.
• Use the E-Stop if necessary.
• Know the location of all emergency stop controls before work begins.
If a concrete pump or boom contacts an energized power line, electrical current can travel through the equipment, concrete, and nearby vehicles. Anyone touching the pump, ready-mix truck, or associated equipment could be electrocuted. Always maintain a minimum clearance of 20 feet from energized power lines.
safety is everyone’s responsibility. Stay aware, follow procedures, and speak up immediately if you see an unsafe condition.