Thrust cylinder connected tubing, filled with oil, and then start expanding oil pump, oil pump when the thrust cylinder pressure rises, and slowly pressure relief, hydraulic thrust cylinders spline jacket to slowly loose end out.

Push the oil pipeline, full of oil fuel tanks, pumps, and then start swelling when the thrust of the fuel tank, pump pressure starts to rise, the hydraulic pressure slowly action spent fuel tank type jacket to thrust slowly loose ends.

The thrust force cylinder meets the drill tubing, the fill oil, then start inflation oil pump, when thrust force cylinder oil pump pressure rise, the release of pressure, the hydraulic pressure spline coat slowly loosely leaves slowly toward the thrust force cylinder end.

Thrust cylinder tubing, filled with oil, and then start the expansion pump, when thrust cylinder oil pump pressure to rise, slowly pressure relief, hydraulic spline coat to thrust cylinder end slowly walk out.

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