21. Technicians will attempt to use hydraulic jacks to push the assembly up and free it, Bailey said. 22. The mobile roof supports are similar to a large dining-room table, but with hydraulic jacks for legs. 23. Below the basket are the hydraulic jacks , which power the pipe into and out of the hole. 24. A caisson is sunk by self-weight, concrete or water ballast placed on top, or by hydraulic jacks . 25. Each terminal had a lifting dock containing a steel grid measuring by connected to 20 hydraulic jacks . 26. They plan to use a hydraulic jack to lift the assembly up and out of the reactor. 27. Hydraulic jacks were the predominant push actuators used in performing arts facilities, but they had their issues.28. One hundred hydraulic jacks and two sensors will make sure the structure stays level as it moves. 29. Expert House Movers, a subcontractor, has saved time in the way it resets the hydraulic jacks , Knott said. 30. Although most vertical-lift bridges use towers, each equipped with counterweights, some use hydraulic jacks located below the deck.
