The tower crane command gesture
Hook slightly down: arm into below before side, with the body Angle is about 30 °, palm down, on a shaft wrist, repeated swing the palm downward. 9. Hook level mobile: slightly above the forearm to the lateral natural stretched out, and five fingers together, palms outward in the direction of the load should be run, repeat slow horizontal motion. The range of micro-motion: two small arms bending, extending to one side, the five fingers straight, the distance between the distance and the load is close to the distance. Directions: to indicate the position of the landing. Stop: the forearm level is placed on the chest, the fingers are outstretched, palms facing down, the horizontal wave to the side.
Stop: the forearm level is placed on the chest, the fingers stretch, palms facing down, the horizontal wave to the side. Emergency stop: two small arms horizontal to the chest, five fingers outstretched, palms facing down, while horizontal wave to the side. End of work: open your hands with fingers and cross in front of your forehead.
Hook down: arm into below before side, with the body Angle is about 30 °, five fingers naturally stretching, axis rotation for the wrist. The hook level moves: the forearm is straight up to the side, and the fingers of the fingers are moving in the direction of the load, moving down to the side of the shoulder. The hook is slightly up: the forearm is stretched over the side, the palm is above the shoulder, the wrist is the shaft, and the palm is swinging up. Before 8. Hook falling slightly: arm into side lower part, with the body Angle is about 30 °, palm down, on a shaft wrist, repeated swing the palm downward.
Prepare (attention) : the arm is straight, put on the head square, the five fingers naturally outstretched, the palm of the hand remains motionless. Want main hook: single hand naturally clenched fist, put on the head, touch top of the head The hook: one hand clenched, the forearm unmoved, the other hand outstretched, the palm of the hand touching the elbow. The hook rises: the forearm is straight up to the side, the five fingers naturally outstretched, above the shoulder, and the wrist is turned on the axis.
