My brother and I got a 977H awhile back. He used it around his house for a few months while we got the money together to move it to our property in upstate NY. Once we got her there he ran it for a day. The next morning we went into town for breakfast and picked up a new fuel filter and some hydraulic fluid. We changed the filter and topped off the hydraulic fluid and got ready to get busy. He started her up and let her idle for a couple of minutes when he thought he heard a noise so he shut her down. The engine shut down like normal. I was standing on the ground next to the machine when he thought he heard a noise and didn't hear anything. When he tried to start her back up she wouldn't turn over. The fan moves a bit so we know the starter works. There is plenty of juice in the batteries. Any help would be greatly appreciated. It's hard for us to work on because it's over an hour drive for me and over two and a half hours for him. We pulled the oil filter and had it checked by the heavy equipment mechanic where he works and he said there was no metal in the filter. The serial number is 53A5931 series H.