I came across this safety video on YouTube recently, it is easy to understand and covers a lot of ground regarding crane signals. It has been put together by 'The Associated General Contractors of America'. Keep in mind it is an American video and some signals are slightly different, however well worth a look, and helps to illustrate the importance of the dogman / signalsman and the relation with the crane operator.
If you would like a reminder of the Australian signals, they can be seen here on our earlier post.
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