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As any crane operator will tell you crane signals are an important crane safety measure that should not be ignored. They are a vital method of communication between operators and other site workers and are the key to avoid accidents.
There are two different types of crane signals – crane warning signals and signals given by a signal person – and both are important in ensuring crane safety. Crane Warning Signal The crane warning signal is a loud noise that is used by the operator to warn people surrounding the crane of danger. In this respects it is similar to a car horn. This should be tested before the lifting equipment is used, if there are any problems with signalling the gear should not be operated until it can be fixed. The signal is the most effective way to let people know if they are in any immediate danger and it is irresponsible to use a crane with a malfunctioning signal. As well as being used during emergencies, the crane warning signal lets people on site know quickly and easily what the crane is doing. They are most commonly used: • Before and after any manoeuvre • Whenever a load is near people This allows staff to move safely around the site. Signal Person The signal person directs the crane operator, informing them where and how far to move a load. The operator cannot see exactly what they are doing from the cab of the crane, and so the signal person helps them to avoid obstacles and correctly place loads. The signal person must be highly trained and understand all aspects of crane safety and operation. They are also responsible for ensuring that no people get in the way of the load, placing themselves in danger. They need to be in clear sight of the operator (and vice versa) at all times. Only one signal person will work with a crane operator at a time, giving him directions using voice signals and /or hand signals. Voice Signals The signal person directs the operator clearly and concisely using a telephone or radio. Hand Signals There is an established set of standard hand signals that a signal person can use. Other signals may be used, but these should be agreed between the crane operator and signal person in advance. Find out more about the crane signals used by the signal person. Crane signals are just one of the many crane safety systems, along with crane testing, that sites use to reduce accidents. If you need any information or advice on crane safety contact our experienced staff, who’ll be happy to answer your questions. |
Crane Signals |