Safe Operating Procedures and Signaling
Safe Operating Procedures and Signaling
This domain tests control of the lift: signals, communication, load path, and stopping rules. Expect hand signals, radio use, and operator responsibilities.
Core rules
- Use one designated signal person. The operator takes signals only from that person, except that anyone may give a stop signal.
- Standard hand signals must be used when voice or radio is not possible. If radio communication fails, stop and re-establish signals.
- Before lifting, confirm load weight, radius, rigging, load path, and destination. Keep personnel out of the fall zone and never lift over employees.
- Use tag lines to control the load. Do not ride the hook or load. Avoid side loading, shock loading, and rapid swing.
- Stop operations in high wind, lightning, poor visibility, or any condition that affects control.
Worked example: A radio dies mid-lift. The operator should stop, lower the load to a safe location, and switch to hand signals with the designated signal person before continuing. Continuing by guesswork is a violation.
Traps
- Accepting signals from a rigger who is not designated.
- Treating stop as valid only from the signal person.
- Using a tag line to steady a load while standing under it.
- Continuing a blind lift without a signal person who can see the load.