A track mounted valve exerciser for opening and closing underground valves. The PT1000 can operate underground valves from 4 in.- 60 in. diameter with adjustable torque range from 0 to 850 ft. / lbs.. It has an operational horizontal reach of up to 8’ and a swing radius of up to 270 degrees. The unit can be mounted in various configurations, stowing width-wise or length-wise on a custom Pacific Tek trailer, flatbed service vehicle or dedicated single and tandom axle trailers. This unit can be powered from a separate hydraulic unit or vehicle driven one pump system.