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Message: <blockquote data-quote="Tazza" data-source="post: 13560" data-attributes="member: 82">If you haven't worked on a machine like this before i'd work on a day to get it done. Remove all wiring and hoses to the engine. Un-do the engine mounts. Remove the 6 or so hoses to the pump and plug the lines, remove linkages and pull the engine.Like Ken said, you need to pull the pulley off the pump, this NEEDS a puller and hammer, its locked in with a taper and can be quite hard to get free. Put tension on it with the puller then strike the screw of the puller with a hammer till it shocks free. Then you need to put the pump down to check bearings just to be sure. I think you can change the seal without pulling the pump down but i'd still check for play. Even if you feel if the shaft *wiggles* from side to side.</blockquote>