Lifting and Moving Loads / Hand Signals
The Lift Plan
Before any pick, confirm the load weight, rigging capacity, path of travel, landing zone, and communication method. Barricade the area under the load; no one stands or passes beneath a suspended load. Tag lines control rotation and sway. Lift a few inches, pause, and check for load shift, sling settling, and rigging contact before continuing.
Hand Signals
Standard hand signals are the rigger's language with the operator. Key signals: raise (arm extended upward, palm up, fingers moving inward); lower (arm extended downward, palm down, fingers moving inward); stop (arm extended, palm down, held still); emergency stop (both arms extended, palms down, moved rapidly side to side); dog everything (clasp hands in front of body); swing (arm extended, pointing in the direction of travel). Only one designated signal person directs the operator; anyone may give an emergency stop.
Communication Traps
Questions test that an emergency stop may be given by anyone, that a signal person must be identifiable, and that unclear signals mean stop. Radio communication must be tested before the lift.
Moving Loads
Keep the load low and centered, avoid sudden starts and stops, and never drag a load sideways with a crane unless the plan permits it. Watch for power lines and maintain required clearances; treat all lines as energized.
Rule of Thumb
"One voice, many eyes": one signal person directs, but every worker has the right and duty to stop an unsafe lift. When a signal is ambiguous, the operator stops until it is clarified.