It never hurts anything except your pocket book to change all the fluids and filters. That being said here are some suggestions if you want to hold down costs. The first thing I would do is change the engine oil now and after about 50 hours. Drain the anti-freeze and flush out the cooling system as best as possible (can take out the temperature sender and put in an adapter for a garden hose into it) and get new anti-freeze in it. After the tractor sets for a few days, loosen the drain plug on the back bottom of the rear end slowly and see if there is any water in it. The water will start to drip out just before the oil does, and the oil will start to drip out just before the plug comes out, so you will want to be careful when you do this. Change the hydraulic filter, and if the oil in the filter housing is “milky” in color, drop the rear-end/transmission oil and replace it with Hy-Tran. If you don’t find any water when you loosen the drain plug and the oil does not appear to be “milky” you can probably leave it in for a while unless you know it hasn’t been changed for a while. Depending on how it was used, 3255 hours can still be a good engine or it may be getting close to needing sleeves and pistons. If it uses a lot of oil (more than a quart a day) it will need to be rebuilt. Regardless, the rest of the tractor should be in excellent condition, as with decent care those rear ends would last at least 10,000 hrs. My nickels worth
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