If you have a Case dealer near you, I'd ask them about printing you some diagrams of the hydraulic system. I'm sure they have that info. Case owns everything that has to do with International. I was able to get a diagram of the Power Steering system on my 300U when I was having problems with
The hydraulic fill is a pipe plug just to the left of the shifting lever as you sit on the tractor.
On my 544 it is just outside the starter .
4,413 lbs As posted on tractordata.com
By International 300 I assume you have a 300 utility. Correct? The 300 utility has a wire mesh screen on the hydraulic intake inside of the reservoir under the tractor seat. You have to take the top half of the reservoir off to get to the screen. It's not easy but I found that the screen on my 300 was almost completely blocked due to years of use. You can see a diagram of the part if you go to a CaseIH dealer website and look up part number 361869R11 (CHN Parts & Service)
There will be a lever on the left side in front of the steering wheel.
There are many places where one might find a utility tractor. One might find a utility tractor at popular on the web sources such as Auto Trader and eBay Motors.
Utility tractor is just a general term for an unspecialized tractor. This could be anything from a large lawn tractor to a large farm tractor so long as it's capable of being used in a wide range of applications.
Utility tractor can be used just like a regular tractor. One can use both and both works in the same way. There is not preference on which is better.
IH 460 D refers to an International Harvester 460 Deisel utility tractor. But, buyer beware-- there are full-scale versions of this tractor and miniature models. Get the dimensions!
3000psi
The first year John Deere introduced the utility tractor was 1918. Before that, the John Deere company manufactured plows. They bought the maker of the Waterloo Boy tractor in order to sell tractors.
My 330 weighs just a little over 4500 pounds all ready to work. My International Harvester Data Book says '4,365 pounds (operating, with options and 175-pound operator)' -Nate