I have one vertical die casting machine. For past couple of months hydraulic system is under break down, for which I am not able to find the reason. At first we had pump failure for which i removed the suction filter. Now as the pump was of vane type, during the breakage the vane debris has gone into the hydrulic system. We have started mechanical cleaning of the system. But i wanted to know that if any thing else will also be required to be done.