Oct 12, 2020 · Boom signals instruct the crane operator to raise or lower the boom, which is the long arm extending out from a crane. There are three common boom signals: Raise boom: Extend an arm outward and point the thumb upward with a closed fist. Lower boom: Extend an arm outward and point the thumb downward with a closed fist.

Jan 5, 2021 · To signal to extend the boom, the signal person will place both hands at his/her waist, level with closed fists and thumbs pointed outward. To signal to retract the boom, the signal person will place both hands at his/her waist, level with closed fists and thumbs pointed inward.

Mar 1, 2024 · Raise Boom: Outstretch your arm, raise your thumb, and tightly clench your fist. Lower Boom: Reach your arm out, flip your thumb downward, and tightly close your fist. Swing boom: Point your index finger outward to indicate the swing direction, keeping your arm stretched.

May 17, 2023 · What does a thumbs down mean to a crane operator? It has to do with the boom. To signal to lower the boom, stretch your arm out and point your thumb down with your fist closed.

May 20, 2024 · Raise Boom: Signal: Bend the elbow with the forearm vertical, fingers closed and thumb pointing upward. Purpose: Directs the crane to raise its boom. Lower Boom: Signal: Bend the elbow with the forearm vertical, fingers closed and thumb pointing downward. Purpose: Directs the crane to lower its boom. To know more about crane booms, click here ...

Oct 7, 2009 · Lower the Boom and Raise the Load. Arm extended, fingers closed, thumb pointing downward, other arm with forearm vertical, forefinger pointing upward and rotate hand in horizontal circles.

BOOM DOWN With arm extended horizontally to the side, thumb points down with other fingers closed. MOVE SLOWLY A hand is placed in front of the hand that is giving the action signal. (Hoist slowly shown in example.) SWING With arm extended horizontally, index finger points in direction that boom is to swing. BOOM DOWN AND RAISE THE LOAD

Check out these common signals and what they mean: A single arm is extended to the side with palm facing down and the arm is swung back and forth. Both hands are clasped together at waist level. (View the complete OSHA Crane Operator Hand Signal pdf here.)

With upper arm extended to the side, forearm and index finger pointing straight up, hand and finger make small circles. With arm and index finger pointing down, hand and finger make small circles. A hand taps on top of the head. Then regular signal is given to indicate desired action.

Aug 4, 2024 · Raise Boom: Arm extended, fingers closed and thumb pointing upwards; Lower Boom: Arm extended, fingers closed and thumb pointing downwards; Move Slowly: Use one hand to give any motion signal and place the other hand …