XDY70 portable hydraulic bushing press is a combination of hollow cylinder, lead screw, trapezoidal tooling, rotating fixed disc, hydraulic pump station, using the principle of hydraulic energy into mechanical energy, the crawler excavator steel bushing to implement the pressure mounting tools. With a large flow manual reversing pump (suitable for field work), electric pump (220V, 380V) as a power source to make the hydraulic cylinder move forward quickly, so as to smoothly press the bushing into, replace the human hammer, to ensure that the bushing is intact and undamaged, is the ideal tool for track excavator maintenance and assembly.