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