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...Operator s manual standard hand signals for controlling crane operations travel hoist lower use main one track both tracks whip line raise boom swing stop the and extend retract move slowly load telescoping booms dog everything emergency reprinted from asme b by permission of american society mechanical engineers all rights figure operation are important communications cranes used primarily making heavy lifts in or between designated signal person der to do this properly certain procedures must be fol a chart is shown lowed following suggested procedure copy also on right side typical carrier hydraulic reservoir determine weight lifted sure add these should at times unless voice hook block ball slings rigging instructions with radio telephone being fly etc height which as their obeyed obey anyone section operating...