Old EMDs, epic struggle and stall : Australian trains

The train is 9162, a load of grain from Ouyen to Sunshine. One of the locos is not powering and the train powers to a stand on the 1 in 52 grade. The problem is rectified and then all are powering but the sand is gone and there has been a fine drizzle of rain. All efforts to lift the load prove futile and it is eventually taken back to Ballarat to try again with full sand boxes and all powering from the start out of the yard. The locos are all very old EMD units and are on hire from preservation groups. S