Mobile Crane Hand Signals Flashcards
Hoist
With forearm vertical, index finger pointing up, move hand in small horizontal circle
Lower
With arm extended downward, index finger pointing down, move hand in small horizontal circle
Use Main Hoist
Tap fist on head, then use regular signals
Use Whipline
Tap elbow 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
Move Slowly
Use one hand to give any motion signal and place other hand motionless in front of the hand giving the motion signal
Raise the Boom and Lower the Load
With arm extended, thumb pointing up, flex fingers in and out as long as load movement is desired
Lower the Boom and Raise the Load
With arm extended, thumb pointed down, flex fingers and out as long as load movement is desired
Swing
Arm extended, point with finger in direction of swing of boom
Stop
Arm extended, palm down, move arm back and forth horizontally
Emergency Stop
Both arms extended, palms down, move arms back and forth horizontally
Travel
Arm extended forward, hand open and slightly raised, make pushing motion in direction of travel
Dog Everything
Clasp hands in front of body
Travel (Both Tracks)
Use both fists in front of body, making a circular motion about each other indicating direction of travel toward or backward (for land cranes only)
