i am running a stone crusher. The crusher breaks stones of 6

I am running a stone crusher. The crusher breaks stones of 600mm size into 25mm size. The main body of the crusher got cracked while running. I do not know the reason for the same. Most probably the foundation bolt of the crusher got loosened and due to the vibration of the machine while running the same developed cracks. I have undertaken a contractors Plant & Machinery Policy. Is the loss payable under the said policy.