Where is the hydraulic filter on an international 300?

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)