{TAIL ~ A hydraulic power supply} is provided on {HEAD ~ the upper structure} and the output of which is controlled by an operator in the excavator cab to be supplied to the hydraulic motor supported on the main chassis  
{ TAIL ~ A hydraulic power supply } is provided on { HEAD ~ the upper structure } and the output of which is controlled by an operator in the excavator cab to be supplied to the hydraulic motor supported on the main chassis
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH