4500's built from 65-10/70 get their power steering oil from the main hydraulic tank built into the radiator shell instead of a small reservoir like ag tractors use. This tank holds around 7 gallons of hyd oil, all of which can drain into the engine oil pan if the power steering pump shaft seals leak.
If there's as much oil in the oil pan as said one simply has to pull the dip stick on the front hyd tank to see if it's low on oil.
To remove the pump one can loop a piece of rubber hose from the tanks power steering supply fitting back to the return fitting on the main hyd return pipe, other wise you'll need to drain the tank.
Care should be taken not to damage any of the oil lines when removing the power steering pump has many of these lines are no longer serviced and the ones that are still available are pricey.
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Today's Featured Article - Tuning-Up Your Tractor: Oil, Oil Filter and Air Breather - by Curtis Von Fange. In the preceding articles we discussed some of the various aspects of doing a comprehensive tune up. Hopefully some light was shed on why we do or don't do certain things pertaining to inspections and order of events when doing a tune up. Perhaps some useful reasons were given for why parts fail and what to do about preventing part failure in the future. All these tips will help us think and reason out a problem in order to make our tune up last and, hopefully, keep us from spending extra mone
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