a means for control that disallows an operation that would increase the work radius if an overload state is detected by {TAIL ~ said means} for {HEAD ~ comparison} 
a means for control that disallows an operation that would increase the work radius if an overload state is detected by { TAIL ~ said means } for { HEAD ~ comparison }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD