During the hookup process, the signalman must also observe the cargo hook and the apex fitting. Once hookup has been accomplished, he must hold the aircraft at a hover until the hookup men are clear of the load.When they are clear, the signalman will signal the aircraft to “Move Upwards” slowly so that the sling legs/lifting legs gradually take up the load. This is done to check that the sling legs/lifting legs are not fouled on the load. If they are fouled, the signalman will motion the pilot downwards, then instruct him to cut away and the procedure will be repeated.