a sequence valve activated when said {HEAD ~ hydraulic torque motor} is activated to permit {TAIL ~ said accumulator} to feed pressurized fluid into the line connected to activate the clutches in said powershift transmission 
is activated to permit
a sequence valve activated when said { HEAD ~ hydraulic torque motor } is activated to permit { TAIL ~ said accumulator } to feed pressurized fluid into the line connected to activate the clutches in said powershift transmission
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH