Ford 3600 fluids

Kind of a stupid question (still have a lot to learn about tractors). I know to use Rotella when I change the Oil. But not sure what to use when topping off the power steering, transmission and rear axle?? Also is that a time when you should change the fluids all out or do you just keep topping them off?? Any help would be appreciated. Thanks

Whenever I buy a tractor I usually change all the fluids in it. Radiator, transmission, rear end. And engine of course. Most of us here use a UTF meeting Ford 134D specs in the tranny/rear end and also use it in the PS system.
Put new filters on the engine and hydraulic pump.
If your tractor is a diesel add the additive to the anti freeze when you change it to prevent cavitation in the cylinder walls which those engines are known for.

to add to the good advice UD gave you.

I generally change fluids ( at purchase ) , and then every year. the AF can be tested with swizzle sticks to check your SCA/DCA addatives.

check belts and hoses for cracks. good to time up belt / hose / antifreeze changes at the same time. check that fan play too. if fan starts getting wobbly.. plan on a water pump, belt / hose / af change...

Thanks Utlradog and soundguy. now as usual the answer drives another question. Dont know spec yet but would something like "Traveller RENEW Tractor Fluid" be good for an older tractor like mine?? Is it worth the cost? Also Ultra for the info on Cavitation never heard of that, so will check it out...

The regular Travellers Universal Tractor Trans/Hydraulic Fluid says on the label that it meets the Ford/New Holland M2C134D specification, and it's the least expensive I can find near me so that's what I buy.

A quick Google search found a TSC web page that describes the "Travellers Renew Universal Tractor Fluid for older Tractors" and that says that it meets 134D spec also. It costs considerably more than the regular Travellers UTF, so it may have something extra in it that makes it cost more. The TSC web site says that it has "improved seal performance minimizing common leaks" which sounds like it has an additive that causes seals to soften and swell, which can help small leaks in the short term, but can cause seals that aren't leaking to degrade quicker in the long run. It's up to you, but I would just go with the regular Travellers UTF myself.

I change the fluids in mine a lot more often than the book calls for in terms of hours since I only put 20 to 30 hours a year or so in mine. Unless you're running it for more than a 150 hours a year or so, you should be changing the fluids more often than the book says also, and keeping the fluid fairly fresh and uncontaminated is more important in my view than any additives that are supposed to help with small leaks. If I get a leak, I live with it until I fix it.

Others here can tell you which off the shelf products will do the same thing for your coolant.
I didn't know what to buy so just picked up a bottle while I was at the dealer.

Again thanks for the info. I learn so much from more from you all. Nothing like experence.