![]() The operator needs to look at the hand signals of the worker to ensure when the proper time to lift, move, and place the load. Due to the loudness of a construction site, workers use hand signals to communicate with the crane operator. Additionally, try to keep the load as low to the ground as is reasonably safe. Use this overhead crane hand signal chart to show your crane operators the proper hand signals to use during operation. This will help with control and stability. If you are in the operator’s cabin and are facilitating the crane, ensure that the crane is as close as possible to the load being lifted. Mobile cranes include crawler mounted, wheel-mounted, rough terrain, all-terrain, commercial truck-mounted, and boom truck cranes. When you do secure the appropriate amount of weight to the hook, make sure that it is properly attached. Mobile cranes: These cranes use a lifting device incorporating a cable suspended latticed boom or hydraulic telescopic boom designed to be moved between operating locations by transport over the road. Make sure you know how much weight your crane is equipped to lift-and don’t exceed that number. ![]() Also look around the site and make sure that when you lift all personnel are a safe distance away from the lift zone and its perimeters. The signal man will provide a wide variety of signals including letting the crane operator know when to raise or lower the boom, use the whipline, swing, extend. This means conducting a visual inspection of the crane parts to make sure nothing seems out of place. Here are some quick tips to keep in mind for crane lifting safety: Knowing the parts of a crane and knowing the safety precautions will help ensure a safe work environment. KEEP ALL PARTS OF A CRANE, FALL LINES, HOOK, BLOCK, AND LOAD A MINIMUM OF 15 FEET FROM ALL ELECTRICAL LINES.Along with knowing the parts and functions of a crane, it is important to be informed on some lifting best practices. Avoid working under a moving load - stay clear of the counter balance - and always remember that the crane operator's vision may be obscured be on guard for your own safety. LOWER BOOM & RAISE LOAD - Extend right arm with thumb pointing down, then flex fingers in and out as long as load movement is desired.Īs for the rest of us on the job, stay alert when working near any crane operation. RAISE BOOM & LOWER LOAD - Extend right arm with thumb pointing up, then flex fingers in and out as long as load movement is desired. TRAVEL - (both tracks, crawler cranes only) Use both fists in front of body, making a circular motion about each other to indicate the direction of travel - forward or backward.ĭOG EVERYTHING - Clasp hands in front of the body. The Construction Crane Signals tool is for all. STOP - Right arm extended down with wrist bent and palm down and open.ĮMERGENCY STOP - Right arm extended, palm down, then move hand rapidly right and left. With forearm vertical, forefinger pointing up, move hand in small horizontal circles. Heavy equipment operators arent the only ones who need to know proper hand signals for construction. The LED safety lights in our store qualify as effective warning signals for overhead and gantry cranes under OSHA standards as these lights provide a more effective visual warning cue than a strobe. SWING - Extend right arm away from body, point with finger in direction of swing of boom. Additionally, OSHA provided clarification that a visual rotating beacon or strobe light is an acceptable warning signal on a radio operated crane. LOWER BOOM - Extend right arm straight out, fingers closed and thumb pointing downward. RAISE BOOM - Extend right arm straight out, fingers closed and thumb pointing upward. LOWER - Extend the right arm downward, forefinger pointing down, then move hand in small horizontal circle. HOIST - Extend the right arm straight out and raise the forearm to vertical, forefinger pointing up, then move hand in small horizontal circle. A wrong signal could cause a serious injury or possible death. FOR CONTROLLING MOBILE CRANE OPERATIONS HOIST. You and the operator are in charge of an important operation. When using hand signal be sure the operator can see you and that both of you understand all the signals. Some special operations may require adaptations of these basic signals. a signal person is able to safely direct a crane operator to raise and lower. ![]() Ask any crane operator and they will tell you that one of the main factors for a successful project is coordination. The Role of a Signal Person As the eyes and the ears of a dedicated area or crane, a signal person carries many responsibilities. The following are the most commonly used hand signals for directing crane lifting operations. Cranes are the most effective way to move heavy loads on a construction site, and proper use of crane hand signals is a vital part of safe operation. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |