Hey Y'all! Hubby just bought a International 404 and as far as I have been able to tell from serial number, it might be approx. a 1961 model. He's tweakin' and tunin' at the moment and is needing some info. on the hydraulic system. He is wanting to know specifically how much hydraulic fluid the system is supposed to have and where do you check it at? He's found a tube w/ a cap where he thinks it's supposed to be checked but there's no 'dipstick' attached to cap. (Redneck check? stick your finger in the hole and if you can feel the fluid, it's good?) I've attempted to find a diagram of the engine or of the hydraulic system with no luck. Hubby is quite a good shade-tree mechanic but not a terrible-lot of experience with tractors...'specially old ones. Any help anyone could give or a direction to hunt in would be great!