{HEAD ~ A hydraulic power supply} is provided on {TAIL ~ 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  
is provided on
{ HEAD ~ A hydraulic power supply } is provided on { TAIL ~ 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
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL 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