1. Park the tractor on level ground and turn off the engine.
2. Allow the tractor to cool down for a few minutes.
3. Locate the hydraulic oil reservoir. It is usually located on the right side of the tractor, near the rear.
4. Remove the cap of the hydraulic oil reservoir.
5. Use a dipstick to measure the oil level. The oil level should be between the "full" and "add" marks on the dipstick.
6. If the oil level is low, add hydraulic oil to the reservoir. Use the recommended type of oil that is specified in the tractor's owner's manual.
7. Replace the cap of the hydraulic oil reservoir.