Pulley removal & reinstall?? How to??

The Federal pump will have a bolt hole in the shaft and you can use a bolt and washer to pull the pulley on. I actually screwed a longer bolt with a washer and nut into the pump and used the nut to pull the pulley on as I wanted to make sure I did not mess up the threads in the pump shaft. If you have the pump without a hole in the pump shaft, you have a Thompson pump and all of the rebuilt units I have seen have the pulley attached when you get it. If not you have to pull the pump out of the casing to press the pulley on, similar to changing an alternator pulley. Just used a three arm puller to get on the groove around the pulley and a bolt in the end of the shaft with a dimple to keep the puller centered and heat and hammer to free up.