... channels to supply oil to the tilt hydro cylinder to realize the forth tilt and back ... structure, the back-up tong and IBOP hydro cylinder don't rotate with the rotating head and ... head, remote actuated IBOP, pipe backup clamp cylinder, link tilt, and counterbalance system.The hydraulic manifold ... with strainers and oil level sight gauge.Three hydro-pneumatic accumulators are located on the mail body. ...