I surmised that the front conveyor swings to one side or the other and than down to dig something up and transport it to the side-dump car behind it. But what does it dig and why? Then today I came across a link to an album of 551 MoW photos. And the first sequence of photos was of this same piece of equipment.
|Ben Stalvey posted|
We have already seen that one of the summer jobs for a Jordan Spreader is cleaning drainage ditches that are beside tracks. If the ditch is too deep and/or far away for the spreader, then you contract for one of these to clean the ditches.
I had noticed this sign in one of my photos. The action picture below shows that there is a rotating digger head. That explains why rocks might get thrown.
It looks like multiple people were standing on the bridge taking videos of this action. This video shows that they do shallow cuts and sometimes have to make multiple passes.
Jim Pearson caught a couple of action shots and a transport shot of DC-2.