a simple pick-up

The other day I discovered that one of my N scale railbox cars was derailing because one of its wheelsets was slightly out of gage. So I replaced it and the derailment stopped. So I put the boxcar back on the layout, by itself, on the siding in the mill town. This meant it was out of the train it had been in. So this called for an operation - pick up the repaired car. Photos below show the operation step by step.