How Does the Hydraulic Rescue Unit work?
The Hydraulic Rescue Unit (HRU) features an independent hydraulic system that utilizes a machine’s, vehicle’s or vessel’s hydraulic system as its power source.
Hydraulic oil flow from the carrier machine is directed to the HRU via the pressure line. This flow powers the HRU’s hydraulic pump, and the oil is then returned to the carrier machine’s hydraulic oil tank through the return line.
The HRU’s hydraulic pump generates its own hydraulic oil flow and is equipped with both pressure and return lines. These lines are connected to an on/off operating block, which regulates the oil flow from the HRU.
The on/off operating block can accommodate two hydraulic tools, allowing simultaneous operation (5 l/min flow per tool at 800 bar) or individual operation (10 l/min flow at 800 bar).
A bypass valve within the on/off operating block activates when the on/off valve is closed, redirecting the hydraulic oil flow back to the HRU’s hydraulic oil tank.
All hydraulic oil eventually returns to the HRU’s hydraulic oil tank via the return line.