Hello all~ I work on the Local Sort with a few other part timers and a 22.3 employee. The 22.3 employee usually washes and parks trucks, cleans building, runs air and left in building packages, etc. Lately the sup has told him to work on the belt which is taking time away from the part timers. He is off loading trucks which has always been a part timers responsibility and in turn he hasn't been washing as many trucks per night. Is this OK? He does have seniority over all of us, but I want to make sure he can work on the local sort and basically bump part timers out of work.