In the front part of the hood, there should be a metal flapper that you can lift up. There will be a cap below it, that is where you add hydraulic fluid.
The level check for the hydraulics/transmission/rear axle is pipe plug on the left side of the tractor just in front of the rear axle housing. Oil is supposed to be at that level with all hydraulics...
There is no dipstick or level plug on these tractors. The way to check it is to measure 18 centimeter from top of filler hole down to oil level.There is level plug on 4000. It's right next to the...
Go to your local parts store or fuel jobber and get a can of Tractor Fluid or your dealer and get OEM fluid. About 50 bucks a can but a lot cheaper than a hydraulic pump failure. Good Luck!