TRW ps pump question

I would say that it is not normal. Remember that if you take it apart to mark the pulley location in relation location on shaft. As Murray said it could be the "circlip". Flip back thru the pics you will see what I mean.
Take a close look at back of pump before you press pulley on. You will want to support it properly.
Good luck, post what you find.

4spdragtop- My pulley shaft is dancing in and out like yours did in your video. Just confirming it is not normal for it to do that and that you remedied it by pressing the pulley further on the shaft? Also if so, is disassembly the only way to press the pulley on without potentially damaging the pump (housing, bearings,etc.)?