Spinning the new compressor installed in Krauss Maffei SP 9010

We have installed an air compressor coupled to the #2 engine. Both compressors were removed when the 9010 was converted to the camera car in 1968. The output of the compressor has yet to be connected to the locomotive air system but that will come in a few days. The hissing sound you hear is from the Maybach MD870's open cylinder test valves.