Washington Standard Hand Signals for Cranes are a set of standardized hand signals used by crane operators and signal persons to safely communicate during crane operations. The signals are used to indicate direction, speed, and weight of the load being lifted. There are two types of Washington Standard Hand Signals for Cranes: the Up-Down Hand Signals and the Left-Right Hand Signals. Up-Down Hand Signals are used to indicate the direction of the crane movement and weight of the load being lifted. The signal person will use their arm to indicate the direction and weight of the load. If the arm is raised vertically, they are indicating the crane should raise the load. If the arm is lowered vertically, they are indicating the crane should lower the load. If the arm is raised and then lowered, they are indicating the crane should stop. Left-Right Hand Signals are used to indicate the direction the crane should move and the speed at which it should move. If the signal person moves their arm in a circular motion, they are indicating the crane should rotate. They can also indicate the speed of the crane's rotation by moving their hand faster or slower. If the signal person moves their arm horizontally, they are indicating the crane should move to the left or the right. They can also indicate the speed of the crane's travel by moving their hand faster or slower.
Washington Standard Hand Signals for Cranes
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FAQ
Arm extended forward, hand open and slightly raised, make pushing motion in direction of travel. Clasp hands in front of body. (Both Tracks). Use both fists in front of body, making a circular motion about each other, indicating direction of travel, forward or backward (for land cranes only).
Signaler extends his arm to the side, with his fingers closed and thumb pointing up. The other arm is slightly raised but with the arm pointing down. With his index finger extended pointing down, he makes small circles with his hand. (Used with locomotive/crawler/truck cranes)
Arm extended, fingers closed, thumb pointing downward. With arm extended, thumb pointing up, flex fingers in and out as long as load movement is desired. With arm extended, thumb down, flex fingers in and out as long as load movement is desired.
Hoist load ? In order to lift the load upwards the signal person will extend their arm vertically towards the ceiling/sky, point with their index finger and make small circles with their hand and index finger.
Use Whip Line (Auxiliary Hoist): Tap elbows with one hand; then use regular signals. Raise Boom: Arm extended, fingers closed, thumb pointing upward. Lower Boom: Arm extended, fingers closed, thumb pointing downward. Swing: Point with a finger in direction of swing of a boom.
(h) Only one person may give signals to a crane/derrick at a time, except in circumstances covered by paragraph (j) of this section. (j) Anyone who becomes aware of a safety problem must alert the operator or signal person by giving the stop or emergency stop signal.
The conduct of operators outlined by ASME includes the use of hand signals in busy industrial environments, even for operators using small or manual overhead crane systems.
Hand Signals This is the most common method of signaling on worksites. When using hand signals, the Standard Method must be used. Hand signal charts must be either posted on the equipment or conspicuously posted in the vicinity of the hoisting operation.