Bay problem – no water

There was a cracked fitting between the pump head and the unloader.  I decided to replace the fitting.  Then I decided to replace the hose that runs from the pump to the high pressure hose.  I assumed that it was the size of a swivel saver.  Which it was not.  I cut the hose with a grinder because it had no swivels on it.  Then I had to put a boom hose in its place but no water would come out at the bay.  The pump got super hot and I have no clue what the problem is.  So I gave up.  I will need to look at it tomorrow.