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Hello Rich - New pump probably isn't needed. Possible causes: Oil level OK? Then Pudding's suggestion - check the filter, then blown o-rings in the system, possibly tired pump. Lift cylinder rings may be worn, but very rare. You can take a look in the hole under the PTO shift lever cover after the filter check to see if o-rings are blown - oil blowing off the standpipe or out the top of the pump, when idling and trying to lift a load on the 3-point. You may have to open the other side to see clearly. You should get the I&T manual or MF shop manual before removing the right cover, though - there's some linkage in there to contend with. (Manuals available through our hosts here - click on "Manuals" at the top right.) You can also check for excessive leakage from the lift cylinder at this time. A small inspection mirror and mini flashlight are helpful for this inspection. You will have to drain off a couple of gallons of oil before removing those covers, or clean up a mess! It's highly unlikely the pump is worn enough to require replacement. Rebuild kit has all critical working parts. $250 or so for the earlier models. Cheaper here in Canada.
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