Gesture signals an operator should know in all types of cranes

Jib, Longmen, ship, bridge, viaduct, boom, tower, mobile or  truck are all types of cranes. It is usually used for the construction of heavy manufacturing equipment such as towers and industries. Cranes have large cranes and small deck cranes. As a temporary structure of a building, it is usually fixed on the ground or hoarded with a special vehicle.
 Before hiring an operator, they must learn some basic operations  about the crane with their tutors or operators. For operators, it is very important to understand the operation process of cranes and master the solutions to accidents. Therefore, they need to use the correct method of safety range in the operation process. In addition, operators should carefully read and understand the operation manuals of crane manufacturers before  operating cranes.
 In order to prevent illegal activities, the most important task of the person in charge is to make their employees aware of all federal laws and regulations. Secondly, we should ensure that the operator's ability to choose those are properly trained, and the training contents contain professional knowledge about operation. The most important thing is that the operation of the crane is safe, it is impossible to achieve absolute safety, the skill and exercise of the careful and ideal foresight, vigilance and concentration are very important.
 The staff responsible for the same crane in the same area must use corresponding gesture signals. This is a necessary means of communication. The following are the commonly used gestures in the process of hoists lifting.
 HOIST. Lift and straighten your forearm and straighten your right arm with your index finger. Move the hand in a small horizontal circle.
 LOWER.The index finger points downward, extends downward to the right arm, and then moves with a small horizontal circle.
 STOP.When the wrist is bent, the palm opens downward and the right arm extends downward.
 SWING. Keep your right arm away from your body and point your finger to the swing direction of the boom.
 RAISE BOOM. The thumb is pointing upward while the right arm is stretched and the fingers closed.
 LOWER BOOM.The fingers are closed, the thumb is pointing downward, and the right arm is straightened.
 BRIDGE TRAVEL.Extend your right arm forward, open your hands, lift slightly, and push in the direction of progress.
 TROLLEY TRAVEL. Thumb points to palm up, fingers closed, horizontal raise.
 EMERGENCY STOP. Extend right arm, palm down and move hand rapidly left and right.
 MULTIPLE TROLLEYS. Lift one finger and make 2 marks with two fingers. The next is the regular signal.
 RAISE BOOM and LOWER LOAD. The right arm is straight and the thumb upwards. Stretch and stretch fingers as long as you need to load the movement.
 LOWER BOOM and RAISE LOAD. The right arm is straight and the thumb is pointing downward. Telescopic fingers point and exit, as long as load movement is necessary.
 DOG EVERYTHING. Put your hands in front of your body.
 MOVE SLOWLY. One hand gives all the motion signals, the other hand is stationary before the hand, giving the motion signal.
 MAGNET IS DISCONNECTED. Open your hands.
 You must make sure that you and your crane operator are familiar with these gestures before you can use these hand signals. Because wrong  signals can lead to serious consequences or even death. If you have a crane  near you, you should always be on the alert. If possible, keep your body  balanced and try to avoid working under the moving load. Safety devices and helmets are always used to avoid injuries. Security is the most important place  in any place.
 The crane has different types and styles. Before you know the crane, I can tell you what the crane is and how it helps the industry. Different units have different types of tasks, and cranes to use are also different. A crane is a heavy equipment and machine that can help people to accomplish tasks easily. People rely on cranes to build the tallest buildings  in the city.
 In the past, people built buildings using simple temporary materials to build buildings by hand. As time goes on, people can no longer take all materials away for a long time, but it takes a few days to complete them. The crane has made people relaxed. The tower crane has good lifting capacity and height. It is a kind of crane.